large refactoring, new transport layer, update to Netty 4.1.22

.gitignore

@@ -9,4 +9,5 @@
 /.project
 /.gradle
 /build
+/out
 *~

build.gradle

@@ -1,12 +1,15 @@
+import java.time.ZonedDateTime
+import java.time.format.DateTimeFormatter
 
 plugins {
-    id "org.sonarqube" version "2.2"
-    id "org.xbib.gradle.plugin.asciidoctor" version "1.5.4.1.0"
-    id "io.codearte.nexus-staging" version "0.7.0"
+    id "org.sonarqube" version "2.6.1"
+    id "io.codearte.nexus-staging" version "0.11.0"
+    id "org.xbib.gradle.plugin.asciidoctor" version "1.6.0.0"
 }
 
-printf "Host: %s\nOS: %s %s %s\nJVM: %s %s %s %s\nGroovy: %s\nGradle: %s\n" +
+printf "Date: %s\nHost: %s\nOS: %s %s %s\nJVM: %s %s %s %s\nGradle: %s Groovy: %s Java: %s\n" +
         "Build: group: ${project.group} name: ${project.name} version: ${project.version}\n",
+        ZonedDateTime.now().format(DateTimeFormatter.ISO_DATE_TIME),
         InetAddress.getLocalHost(),
         System.getProperty("os.name"),
         System.getProperty("os.arch"),
@@ -15,24 +18,15 @@ printf "Host: %s\nOS: %s %s %s\nJVM: %s %s %s %s\nGroovy: %s\nGradle: %s\n" +
         System.getProperty("java.vm.version"),
         System.getProperty("java.vm.vendor"),
         System.getProperty("java.vm.name"),
-        GroovySystem.getVersion(),
-        gradle.gradleVersion
+        gradle.gradleVersion, GroovySystem.getVersion(), JavaVersion.current()
 
 apply plugin: 'java'
 apply plugin: 'maven'
 apply plugin: 'signing'
-apply plugin: 'findbugs'
-apply plugin: 'pmd'
-apply plugin: 'checkstyle'
-apply plugin: "jacoco"
-apply plugin: 'org.xbib.gradle.plugin.asciidoctor'
 apply plugin: "io.codearte.nexus-staging"
+apply plugin: 'org.xbib.gradle.plugin.asciidoctor'
 
 
-repositories {
-    mavenCentral()
-}
-
 configurations {
     alpnagent
     asciidoclet
@@ -43,9 +37,11 @@ dependencies {
     compile "io.netty:netty-codec-http2:${project.property('netty.version')}"
     compile "io.netty:netty-handler-proxy:${project.property('netty.version')}"
     compile "io.netty:netty-tcnative-boringssl-static:${project.property('tcnative.version')}"
-    alpnagent "org.mortbay.jetty.alpn:jetty-alpn-agent:${project.property('alpnagent.version')}"
+    compile "org.xbib:net-url:${project.property('xbib-net-url.version')}"
     testCompile "junit:junit:${project.property('junit.version')}"
-    asciidoclet "org.asciidoctor:asciidoclet:${project.property('asciidoclet.version')}"
+    testCompile "com.fasterxml.jackson.core:jackson-databind:${project.property('jackson.version')}"
+    alpnagent "org.mortbay.jetty.alpn:jetty-alpn-agent:${project.property('alpnagent.version')}"
+    asciidoclet "org.xbib:asciidoclet:${project.property('asciidoclet.version')}"
     wagon "org.apache.maven.wagon:wagon-ssh:${project.property('wagon.version')}"
 }
 
@@ -54,7 +50,7 @@ targetCompatibility = JavaVersion.VERSION_1_8
 
 [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
 tasks.withType(JavaCompile) {
-    options.compilerArgs << "-Xlint:all"
+    options.compilerArgs << "-Xlint:all,-serial"
 }
 
 jar {
@@ -64,7 +60,9 @@ jar {
 }
 
 test {
-    jvmArgs "-javaagent:" + configurations.alpnagent.asPath
+    if (JavaVersion.current() == JavaVersion.VERSION_1_8) {
+        jvmArgs "-javaagent:" + configurations.alpnagent.asPath
+    }
     testLogging {
         showStandardStreams = false
         exceptionFormat = 'full'
@@ -72,18 +70,20 @@ test {
 }
 
 asciidoctor {
-    backends 'html5'
-    separateOutputDirs = false
-    attributes 'source-highlighter': 'coderay',
-            toc                 : '',
-            idprefix            : '',
-            idseparator         : '-',
-            stylesheet: "${projectDir}/src/docs/asciidoc/css/foundation.css"
+    attributes toc: 'left',
+            doctype: 'book',
+            icons: 'font',
+            encoding: 'utf-8',
+            sectlink: true,
+            sectanchors: true,
+            linkattrs: true,
+            imagesdir: 'img',
+            'source-highlighter': 'coderay'
 }
 
 javadoc {
     options.docletpath = configurations.asciidoclet.files.asType(List)
-    options.doclet = 'org.asciidoctor.Asciidoclet'
+    options.doclet = "org.xbib.asciidoclet.Asciidoclet"
     options.overview = "src/docs/asciidoclet/overview.adoc"
     options.addStringOption "-base-dir", "${projectDir}"
     options.addStringOption "-attribute",
@@ -117,4 +117,3 @@ if (project.hasProperty('signing.keyId')) {
 
 apply from: 'gradle/ext.gradle'
 apply from: 'gradle/publish.gradle'
-apply from: 'gradle/sonarqube.gradle'

gradle.properties

@@ -1,10 +1,12 @@
 group = org.xbib
 name = netty-http-client
-version = 4.1.11.4
+version = 4.1.22.0
 
-netty.version = 4.1.11.Final
+netty.version = 4.1.22.Final
 tcnative.version = 2.0.1.Final
-alpnagent.version = 2.0.6
+xbib-net-url.version = 1.1.0
+alpnagent.version = 2.0.7
 junit.version = 4.12
-asciidoclet.version = 1.5.4
-wagon.version = 2.12
+jackson.version = 2.8.11.1
+asciidoclet.version = 1.6.0.0
+wagon.version = 3.0.0

gradle/sonarqube.gradle

@@ -22,10 +22,8 @@ tasks.withType(Checkstyle) {
 
 jacocoTestReport {
     reports {
-        xml.enabled true
-        csv.enabled false
-        xml.destination "${buildDir}/reports/jacoco-xml"
-        html.destination "${buildDir}/reports/jacoco-html"
+        xml.enabled = true
+        csv.enabled = false
     }
 }
 
@@ -33,7 +31,7 @@ sonarqube {
     properties {
         property "sonar.projectName", "${project.group} ${project.name}"
         property "sonar.sourceEncoding", "UTF-8"
-        property "sonar.tests", "src/integration-test/java"
+        property "sonar.tests", "src/test/java"
         property "sonar.scm.provider", "git"
         property "sonar.java.coveragePlugin", "jacoco"
         property "sonar.junit.reportsPath", "build/test-results/test/"

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Tue May 02 21:00:09 CEST 2017
+#Sun Feb 25 12:39:15 CET 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-rc-1-all.zip

gradlew

@@ -33,11 +33,11 @@ DEFAULT_JVM_OPTS=""
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
-warn ( ) {
+warn () {
     echo "$*"
 }
 
-die ( ) {
+die () {
     echo
     echo "$*"
     echo
@@ -155,7 +155,7 @@ if $cygwin ; then
 fi
 
 # Escape application args
-save ( ) {
+save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }

src/docs/asciidoclet/overview.adoc

@@ -1,4 +1,4 @@
 = Netty HTTP client
 Jörg Prante
-Version 4.1.9.0
+Version 4.1.22.0
 

src/main/java/org/xbib/netty/http/client/Client.java

@@ -0,0 +1,218 @@
+package org.xbib.netty.http.client;
+
+import io.netty.bootstrap.Bootstrap;
+import io.netty.buffer.ByteBufAllocator;
+import io.netty.buffer.PooledByteBufAllocator;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.ChannelOption;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpVersion;
+import io.netty.handler.ssl.OpenSsl;
+import org.xbib.netty.http.client.handler.http1.HttpChannelInitializer;
+import org.xbib.netty.http.client.handler.http1.HttpResponseHandler;
+import org.xbib.netty.http.client.handler.http2.Http2ChannelInitializer;
+import org.xbib.netty.http.client.handler.http2.Http2ResponseHandler;
+import org.xbib.netty.http.client.handler.http2.Http2SettingsHandler;
+import org.xbib.netty.http.client.transport.Http2Transport;
+import org.xbib.netty.http.client.transport.HttpTransport;
+import org.xbib.netty.http.client.transport.Transport;
+import org.xbib.netty.http.client.util.NetworkUtils;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.ThreadFactory;
+import java.util.function.Function;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public final class Client {
+
+    private static final Logger logger = Logger.getLogger(Client.class.getName());
+
+    private static final ThreadFactory httpClientThreadFactory = new HttpClientThreadFactory();
+
+    static {
+        NetworkUtils.extendSystemProperties();
+    }
+
+    private final ClientConfig clientConfig;
+
+    private final ByteBufAllocator byteBufAllocator;
+
+    private final EventLoopGroup eventLoopGroup;
+
+    private final Class<? extends SocketChannel> socketChannelClass;
+
+    private final Bootstrap bootstrap;
+
+    private final HttpResponseHandler httpResponseHandler;
+
+    private final Http2SettingsHandler http2SettingsHandler;
+
+    private final Http2ResponseHandler http2ResponseHandler;
+
+    private final List<Transport> transports;
+
+    private TransportListener transportListener;
+
+    public Client() {
+        this(new ClientConfig());
+    }
+
+    public Client(ClientConfig clientConfig) {
+        this(clientConfig, null, null, null);
+    }
+
+    public Client(ClientConfig clientConfig, ByteBufAllocator byteBufAllocator,
+                  EventLoopGroup eventLoopGroup, Class<? extends SocketChannel> socketChannelClass) {
+        Objects.requireNonNull(clientConfig);
+        this.clientConfig = clientConfig;
+        this.byteBufAllocator = byteBufAllocator != null ?
+                byteBufAllocator : PooledByteBufAllocator.DEFAULT;
+        this.eventLoopGroup = eventLoopGroup != null ?
+                eventLoopGroup : new NioEventLoopGroup(clientConfig.getThreadCount(), httpClientThreadFactory);
+        this.socketChannelClass = socketChannelClass != null ?
+                socketChannelClass : NioSocketChannel.class;
+        this.bootstrap = new Bootstrap()
+                .group(this.eventLoopGroup)
+                .channel(this.socketChannelClass)
+                .option(ChannelOption.TCP_NODELAY, clientConfig.isTcpNodelay())
+                .option(ChannelOption.SO_KEEPALIVE, clientConfig.isKeepAlive())
+                .option(ChannelOption.SO_REUSEADDR, clientConfig.isReuseAddr())
+                .option(ChannelOption.SO_SNDBUF, clientConfig.getTcpSendBufferSize())
+                .option(ChannelOption.SO_RCVBUF, clientConfig.getTcpReceiveBufferSize())
+                .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, clientConfig.getConnectTimeoutMillis())
+                .option(ChannelOption.ALLOCATOR, byteBufAllocator);
+        this.httpResponseHandler = new HttpResponseHandler();
+        this.http2SettingsHandler = new Http2SettingsHandler();
+        this.http2ResponseHandler = new Http2ResponseHandler();
+        this.transports = new CopyOnWriteArrayList<>();
+    }
+
+    public static ClientBuilder builder() {
+        return new ClientBuilder();
+    }
+
+    public void setTransportListener(TransportListener transportListener) {
+        this.transportListener = transportListener;
+    }
+
+    public void logDiagnostics(Level level) {
+        logger.log(level, () -> "OpenSSL available: " + OpenSsl.isAvailable() +
+                " OpenSSL ALPN support: " + OpenSsl.isAlpnSupported() +
+                " Local host name: " + NetworkUtils.getLocalHostName("localhost"));
+        logger.log(level, NetworkUtils::displayNetworkInterfaces);
+    }
+
+    public int getTimeout() {
+        return clientConfig.getReadTimeoutMillis();
+    }
+
+    public Transport newTransport(HttpAddress httpAddress) {
+        Transport transport;
+        if (httpAddress.getVersion().majorVersion() < 2) {
+            transport = new HttpTransport(this, httpAddress);
+        } else {
+            transport = new Http2Transport(this, httpAddress);
+        }
+        if (transportListener != null) {
+            transportListener.onOpen(transport);
+        }
+        transports.add(transport);
+        return transport;
+    }
+
+    public Channel newChannel(HttpAddress httpAddress) throws InterruptedException {
+        HttpVersion httpVersion = httpAddress.getVersion();
+        ChannelInitializer<SocketChannel> initializer;
+        if (httpVersion.majorVersion() < 2) {
+            initializer = new HttpChannelInitializer(clientConfig, httpAddress, httpResponseHandler);
+        } else {
+            initializer = new Http2ChannelInitializer(clientConfig, httpAddress, http2SettingsHandler, http2ResponseHandler);
+        }
+        return bootstrap.handler(initializer)
+                .connect(httpAddress.getInetSocketAddress()).sync().await().channel();
+    }
+
+    /**
+     * For following redirects by a chain of transports.
+     * @param transport the previous transport
+     * @param request the new request for continuing the request.
+     */
+    public void continuation(Transport transport, Request request) {
+        Transport nextTransport = newTransport(HttpAddress.of(request));
+        nextTransport.setResponseListener(transport.getResponseListener());
+        nextTransport.setExceptionListener(transport.getExceptionListener());
+        nextTransport.setHeadersListener(transport.getHeadersListener());
+        nextTransport.setCookieListener(transport.getCookieListener());
+        nextTransport.setPushListener(transport.getPushListener());
+        nextTransport.setCookieBox(transport.getCookieBox());
+        nextTransport.execute(request);
+        nextTransport.get();
+        close(nextTransport);
+    }
+
+    public Transport execute(Request request) {
+        Transport nextTransport = newTransport(HttpAddress.of(request));
+        nextTransport.execute(request);
+        return nextTransport;
+    }
+
+    public <T> CompletableFuture<T> execute(Request request,
+                                            Function<FullHttpResponse, T> supplier) {
+        return newTransport(HttpAddress.of(request)).execute(request, supplier);
+    }
+
+    public Transport prepareRequest(Request request) {
+        return newTransport(HttpAddress.of(request));
+    }
+
+    public void close(Transport transport) {
+        if (transportListener != null) {
+            transportListener.onClose(transport);
+        }
+        transport.close();
+        transports.remove(transport);
+    }
+
+    public void close() {
+        for (Transport transport : transports) {
+            close(transport);
+        }
+    }
+
+    public void shutdown() {
+        eventLoopGroup.shutdownGracefully();
+    }
+
+    public void shutdownGracefully() {
+        close();
+        shutdown();
+    }
+
+    public interface TransportListener {
+
+        void onOpen(Transport transport);
+
+        void onClose(Transport transport);
+    }
+
+    static class HttpClientThreadFactory implements ThreadFactory {
+
+        private int number = 0;
+
+        @Override
+        public Thread newThread(Runnable runnable) {
+            Thread thread = new Thread(runnable, "org-xbib-netty-http-client-pool-" + (number++));
+            thread.setDaemon(true);
+            return thread;
+        }
+    }
+}

src/main/java/org/xbib/netty/http/client/ClientAuthMode.java

@@ -0,0 +1,8 @@
+package org.xbib.netty.http.client;
+
+/**
+ * Client authentication modes, useful for SSL channels.
+ */
+public enum ClientAuthMode {
+    NONE, WANT, NEED
+}

src/main/java/org/xbib/netty/http/client/ClientBuilder.java

@@ -0,0 +1,181 @@
+package org.xbib.netty.http.client;
+
+import io.netty.buffer.ByteBufAllocator;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.handler.proxy.HttpProxyHandler;
+import io.netty.handler.ssl.CipherSuiteFilter;
+import io.netty.handler.ssl.SslProvider;
+
+import javax.net.ssl.TrustManagerFactory;
+import java.io.InputStream;
+
+public class ClientBuilder {
+
+    private ByteBufAllocator byteBufAllocator;
+
+    private EventLoopGroup eventLoopGroup;
+
+    private Class<? extends SocketChannel> socketChannelClass;
+
+    private ClientConfig clientConfig;
+
+    public ClientBuilder() {
+        this.clientConfig = new ClientConfig();
+    }
+
+    /**
+     * Set byte buf allocator for payload in HTTP requests.
+     * @param byteBufAllocator the byte buf allocator
+     * @return this builder
+     */
+    public ClientBuilder setByteBufAllocator(ByteBufAllocator byteBufAllocator) {
+        this.byteBufAllocator = byteBufAllocator;
+        return this;
+    }
+
+    public ClientBuilder setEventLoop(EventLoopGroup eventLoopGroup) {
+        this.eventLoopGroup = eventLoopGroup;
+        return this;
+    }
+
+    public ClientBuilder setChannelClass(Class<SocketChannel> socketChannelClass) {
+        this.socketChannelClass = socketChannelClass;
+        return this;
+    }
+
+    public ClientBuilder setThreadCount(int threadCount) {
+        clientConfig.setThreadCount(threadCount);
+        return this;
+    }
+
+    public ClientBuilder setConnectTimeoutMillis(int connectTimeoutMillis) {
+        clientConfig.setConnectTimeoutMillis(connectTimeoutMillis);
+        return this;
+    }
+
+    public ClientBuilder setTcpSendBufferSize(int tcpSendBufferSize) {
+        clientConfig.setTcpSendBufferSize(tcpSendBufferSize);
+        return this;
+    }
+
+    public ClientBuilder setTcpReceiveBufferSize(int tcpReceiveBufferSize) {
+        clientConfig.setTcpReceiveBufferSize(tcpReceiveBufferSize);
+        return this;
+    }
+
+    public ClientBuilder setTcpNodelay(boolean tcpNodelay) {
+        clientConfig.setTcpNodelay(tcpNodelay);
+        return this;
+    }
+
+    public ClientBuilder setKeepAlive(boolean keepAlive) {
+        clientConfig.setKeepAlive(keepAlive);
+        return this;
+    }
+
+    public ClientBuilder setReuseAddr(boolean reuseAddr) {
+        clientConfig.setReuseAddr(reuseAddr);
+        return this;
+    }
+
+    public ClientBuilder setMaxChunkSize(int maxChunkSize) {
+        clientConfig.setMaxChunkSize(maxChunkSize);
+        return this;
+    }
+
+    public ClientBuilder setMaxInitialLineLength(int maxInitialLineLength) {
+        clientConfig.setMaxInitialLineLength(maxInitialLineLength);
+        return this;
+    }
+
+    public ClientBuilder setMaxHeadersSize(int maxHeadersSize) {
+        clientConfig.setMaxHeadersSize(maxHeadersSize);
+        return this;
+    }
+
+    public ClientBuilder setMaxContentLength(int maxContentLength) {
+        clientConfig.setMaxContentLength(maxContentLength);
+        return this;
+    }
+
+    public ClientBuilder setMaxCompositeBufferComponents(int maxCompositeBufferComponents) {
+        clientConfig.setMaxCompositeBufferComponents(maxCompositeBufferComponents);
+        return this;
+    }
+
+    public ClientBuilder setMaxConnections(int maxConnections) {
+        clientConfig.setMaxConnections(maxConnections);
+        return this;
+    }
+
+    public ClientBuilder setReadTimeoutMillis(int readTimeoutMillis) {
+        clientConfig.setReadTimeoutMillis(readTimeoutMillis);
+        return this;
+    }
+
+    public ClientBuilder setEnableGzip(boolean enableGzip) {
+        clientConfig.setEnableGzip(enableGzip);
+        return this;
+    }
+
+    public ClientBuilder setSslProvider(SslProvider sslProvider) {
+        clientConfig.setSslProvider(sslProvider);
+        return this;
+    }
+
+    public ClientBuilder setJdkSslProvider() {
+        clientConfig.setJdkSslProvider();
+        return this;
+    }
+
+    public ClientBuilder setOpenSSLSslProvider() {
+        clientConfig.setOpenSSLSslProvider();
+        return this;
+    }
+
+    public ClientBuilder setCiphers(Iterable<String> ciphers) {
+        clientConfig.setCiphers(ciphers);
+        return this;
+    }
+
+    public ClientBuilder setCipherSuiteFilter(CipherSuiteFilter cipherSuiteFilter) {
+        clientConfig.setCipherSuiteFilter(cipherSuiteFilter);
+        return this;
+    }
+
+    public ClientBuilder setTrustManagerFactory(TrustManagerFactory trustManagerFactory) {
+        clientConfig.setTrustManagerFactory(trustManagerFactory);
+        return this;
+    }
+
+    public ClientBuilder setKeyCert(InputStream keyCertChainInputStream, InputStream keyInputStream) {
+        clientConfig.setKeyCert(keyCertChainInputStream, keyInputStream);
+        return this;
+    }
+
+    public ClientBuilder setKeyCert(InputStream keyCertChainInputStream, InputStream keyInputStream,
+                                         String keyPassword) {
+        clientConfig.setKeyCert(keyCertChainInputStream, keyInputStream, keyPassword);
+        return this;
+    }
+
+    public ClientBuilder setServerNameIdentification(boolean serverNameIdentification) {
+        clientConfig.setServerNameIdentification(serverNameIdentification);
+        return this;
+    }
+
+    public ClientBuilder setClientAuthMode(ClientAuthMode clientAuthMode) {
+        clientConfig.setClientAuthMode(clientAuthMode);
+        return this;
+    }
+
+    public ClientBuilder setHttpProxyHandler(HttpProxyHandler httpProxyHandler) {
+        clientConfig.setHttpProxyHandler(httpProxyHandler);
+        return this;
+    }
+
+    public Client build() {
+        return new Client(clientConfig, byteBufAllocator, eventLoopGroup, socketChannelClass);
+    }
+}

src/main/java/org/xbib/netty/http/client/ClientConfig.java

@@ -0,0 +1,410 @@
+package org.xbib.netty.http.client;
+
+import io.netty.handler.codec.http2.Http2SecurityUtil;
+import io.netty.handler.proxy.HttpProxyHandler;
+import io.netty.handler.ssl.CipherSuiteFilter;
+import io.netty.handler.ssl.OpenSsl;
+import io.netty.handler.ssl.SslProvider;
+import io.netty.handler.ssl.SupportedCipherSuiteFilter;
+import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
+
+import javax.net.ssl.TrustManagerFactory;
+import java.io.InputStream;
+
+public class ClientConfig {
+
+    interface Defaults {
+
+        /**
+         * Default for thread count.
+         */
+        int THREAD_COUNT = 0;
+
+        /**
+         * Default for TCP_NODELAY.
+         */
+        boolean TCP_NODELAY = true;
+
+        /**
+         * Default for SO_KEEPALIVE.
+         */
+        boolean SO_KEEPALIVE = true;
+
+        /**
+         * Default for SO_REUSEADDR.
+         */
+        boolean SO_REUSEADDR = true;
+
+        /**
+         * Set TCP send buffer to 64k per socket.
+         */
+        int TCP_SEND_BUFFER_SIZE = 64 * 1024;
+
+        /**
+         * Set TCP receive buffer to 64k per socket.
+         */
+        int TCP_RECEIVE_BUFFER_SIZE = 64 * 1024;
+
+        /**
+         * Set HTTP chunk maximum size to 8k.
+         * See {@link io.netty.handler.codec.http.HttpClientCodec}.
+         */
+        int MAX_CHUNK_SIZE = 8 * 1024;
+
+        /**
+         * Set HTTP initial line length to 4k.
+         * See {@link io.netty.handler.codec.http.HttpClientCodec}.
+         */
+        int MAX_INITIAL_LINE_LENGTH = 4 * 1024;
+
+        /**
+         * Set HTTP maximum headers size to 8k.
+         * See  {@link io.netty.handler.codec.http.HttpClientCodec}.
+         */
+        int MAX_HEADERS_SIZE = 8 * 1024;
+
+        /**
+         * Set maximum content length to 100 MB.
+         */
+        int MAX_CONTENT_LENGTH = 100 * 1024 * 1024;
+
+        /**
+         * This is Netty's default.
+         * See {@link io.netty.handler.codec.MessageAggregator#DEFAULT_MAX_COMPOSITEBUFFER_COMPONENTS}.
+         */
+        int MAX_COMPOSITE_BUFFER_COMPONENTS = 1024;
+
+        /**
+         * Allow maximum concurrent connections.
+         * Usually, browsers restrict concurrent connections to 8 for a single address.
+         */
+        int MAX_CONNECTIONS = 8;
+
+        /**
+         * Default read/write timeout in milliseconds.
+         */
+        int TIMEOUT_MILLIS = 5000;
+
+        /**
+         * Default for gzip codec.
+         */
+        boolean ENABLE_GZIP = true;
+
+        /**
+         * Default SSL provider.
+         */
+        SslProvider SSL_PROVIDER = OpenSsl.isAvailable() && OpenSsl.isAlpnSupported() ?
+                SslProvider.OPENSSL : SslProvider.JDK;
+
+        /**
+         * Default ciphers.
+         */
+        Iterable<String> CIPHERS = Http2SecurityUtil.CIPHERS;
+
+        /**
+         * Default cipher suite filter.
+         */
+        CipherSuiteFilter CIPHER_SUITE_FILTER = SupportedCipherSuiteFilter.INSTANCE;
+
+        /**
+         * Default trust manager factory.
+         */
+        TrustManagerFactory TRUST_MANAGER_FACTORY = InsecureTrustManagerFactory.INSTANCE;
+
+        boolean USE_SERVER_NAME_IDENTIFICATION = true;
+
+        /**
+         * Default for SSL client authentication.
+         */
+        ClientAuthMode SSL_CLIENT_AUTH_MODE = ClientAuthMode.NONE;
+    }
+
+
+    /**
+     * If set to 0, then Netty will decide about thread count.
+     * Default is Runtime.getRuntime().availableProcessors() * 2
+     */
+    private int threadCount = Defaults.THREAD_COUNT;
+
+    private boolean tcpNodelay = Defaults.TCP_NODELAY;
+
+    private boolean keepAlive = Defaults.SO_KEEPALIVE;
+
+    private boolean reuseAddr = Defaults.SO_REUSEADDR;
+
+    private int tcpSendBufferSize = Defaults.TCP_SEND_BUFFER_SIZE;
+
+    private int tcpReceiveBufferSize = Defaults.TCP_RECEIVE_BUFFER_SIZE;
+
+    private int maxInitialLineLength = Defaults.MAX_INITIAL_LINE_LENGTH;
+
+    private int maxHeadersSize = Defaults.MAX_HEADERS_SIZE;
+
+    private int maxChunkSize = Defaults.MAX_CHUNK_SIZE;
+
+    private int maxConnections = Defaults.MAX_CONNECTIONS;
+
+    private int maxContentLength = Defaults.MAX_CONTENT_LENGTH;
+
+    private int maxCompositeBufferComponents = Defaults.MAX_COMPOSITE_BUFFER_COMPONENTS;
+
+    private int connectTimeoutMillis = Defaults.TIMEOUT_MILLIS;
+
+    private int readTimeoutMillis = Defaults.TIMEOUT_MILLIS;
+
+    private boolean enableGzip = Defaults.ENABLE_GZIP;
+
+    private SslProvider sslProvider = Defaults.SSL_PROVIDER;
+
+    private Iterable<String> ciphers = Defaults.CIPHERS;
+
+    private CipherSuiteFilter cipherSuiteFilter = Defaults.CIPHER_SUITE_FILTER;
+
+    private TrustManagerFactory trustManagerFactory = Defaults.TRUST_MANAGER_FACTORY;
+
+    private boolean serverNameIdentification = Defaults.USE_SERVER_NAME_IDENTIFICATION;
+
+    private ClientAuthMode clientAuthMode = Defaults.SSL_CLIENT_AUTH_MODE;
+
+    private InputStream keyCertChainInputStream;
+
+    private InputStream keyInputStream;
+
+    private String keyPassword;
+
+    private HttpProxyHandler httpProxyHandler;
+
+    public ClientConfig setThreadCount(int threadCount) {
+        this.threadCount = threadCount;
+        return this;
+    }
+
+    public int getThreadCount() {
+        return threadCount;
+    }
+
+    public ClientConfig setTcpNodelay(boolean tcpNodelay) {
+        this.tcpNodelay = tcpNodelay;
+        return this;
+    }
+
+    public boolean isTcpNodelay() {
+        return tcpNodelay;
+    }
+
+    public ClientConfig setKeepAlive(boolean keepAlive) {
+        this.keepAlive = keepAlive;
+        return this;
+    }
+
+    public boolean isKeepAlive() {
+        return keepAlive;
+    }
+
+    public ClientConfig setReuseAddr(boolean reuseAddr) {
+        this.reuseAddr = reuseAddr;
+        return this;
+    }
+
+    public boolean isReuseAddr() {
+        return reuseAddr;
+    }
+
+    public ClientConfig setTcpSendBufferSize(int tcpSendBufferSize) {
+        this.tcpSendBufferSize = tcpSendBufferSize;
+        return this;
+    }
+
+    public int getTcpSendBufferSize() {
+        return tcpSendBufferSize;
+    }
+
+    public ClientConfig setTcpReceiveBufferSize(int tcpReceiveBufferSize) {
+        this.tcpReceiveBufferSize = tcpReceiveBufferSize;
+        return this;
+    }
+
+    public int getTcpReceiveBufferSize() {
+        return tcpReceiveBufferSize;
+    }
+
+    public ClientConfig setMaxInitialLineLength(int maxInitialLineLength) {
+        this.maxInitialLineLength = maxInitialLineLength;
+        return this;
+    }
+
+    public int getMaxInitialLineLength() {
+        return maxInitialLineLength;
+    }
+
+    public ClientConfig setMaxHeadersSize(int maxHeadersSize) {
+        this.maxHeadersSize = maxHeadersSize;
+        return this;
+    }
+
+    public int getMaxHeadersSize() {
+        return maxHeadersSize;
+    }
+
+    public ClientConfig setMaxChunkSize(int maxChunkSize) {
+        this.maxChunkSize = maxChunkSize;
+        return this;
+    }
+
+    public int getMaxChunkSize() {
+        return maxChunkSize;
+    }
+
+    public ClientConfig setMaxConnections(int maxConnections) {
+        this.maxConnections = maxConnections;
+        return this;
+    }
+
+    public int getMaxConnections() {
+        return maxConnections;
+    }
+
+    public ClientConfig setMaxContentLength(int maxContentLength) {
+        this.maxContentLength = maxContentLength;
+        return this;
+    }
+
+    public int getMaxContentLength() {
+        return maxContentLength;
+    }
+
+    public ClientConfig setMaxCompositeBufferComponents(int maxCompositeBufferComponents) {
+        this.maxCompositeBufferComponents = maxCompositeBufferComponents;
+        return this;
+    }
+
+    public int getMaxCompositeBufferComponents() {
+        return maxCompositeBufferComponents;
+    }
+
+    public ClientConfig setConnectTimeoutMillis(int connectTimeoutMillis) {
+        this.connectTimeoutMillis = connectTimeoutMillis;
+        return this;
+    }
+
+    public int getConnectTimeoutMillis() {
+        return connectTimeoutMillis;
+    }
+
+    public ClientConfig setReadTimeoutMillis(int readTimeoutMillis) {
+        this.readTimeoutMillis = readTimeoutMillis;
+        return this;
+    }
+
+    public int getReadTimeoutMillis() {
+        return readTimeoutMillis;
+    }
+
+    public ClientConfig setEnableGzip(boolean enableGzip) {
+        this.enableGzip = enableGzip;
+        return this;
+    }
+
+    public boolean isEnableGzip() {
+        return enableGzip;
+    }
+
+    public ClientConfig setSslProvider(SslProvider sslProvider) {
+        this.sslProvider = sslProvider;
+        return this;
+    }
+
+    public SslProvider getSslProvider() {
+        return sslProvider;
+    }
+
+    public ClientConfig setJdkSslProvider() {
+        this.sslProvider = SslProvider.JDK;
+        return this;
+    }
+
+    public ClientConfig setOpenSSLSslProvider() {
+        this.sslProvider = SslProvider.OPENSSL;
+        return this;
+    }
+
+    public ClientConfig setCiphers(Iterable<String> ciphers) {
+        this.ciphers = ciphers;
+        return this;
+    }
+
+    public Iterable<String> getCiphers() {
+        return ciphers;
+    }
+
+    public ClientConfig setCipherSuiteFilter(CipherSuiteFilter cipherSuiteFilter) {
+        this.cipherSuiteFilter = cipherSuiteFilter;
+        return this;
+    }
+
+    public CipherSuiteFilter getCipherSuiteFilter() {
+        return cipherSuiteFilter;
+    }
+
+    public ClientConfig setTrustManagerFactory(TrustManagerFactory trustManagerFactory) {
+        this.trustManagerFactory = trustManagerFactory;
+        return this;
+    }
+
+    public TrustManagerFactory getTrustManagerFactory() {
+        return trustManagerFactory;
+    }
+
+    public ClientConfig setKeyCert(InputStream keyCertChainInputStream, InputStream keyInputStream) {
+        this.keyCertChainInputStream = keyCertChainInputStream;
+        this.keyInputStream = keyInputStream;
+        return this;
+    }
+
+    public InputStream getKeyCertChainInputStream() {
+        return keyCertChainInputStream;
+    }
+
+    public InputStream getKeyInputStream() {
+        return keyInputStream;
+    }
+
+    public ClientConfig setKeyCert(InputStream keyCertChainInputStream, InputStream keyInputStream,
+                                    String keyPassword) {
+        this.keyCertChainInputStream = keyCertChainInputStream;
+        this.keyInputStream = keyInputStream;
+        this.keyPassword = keyPassword;
+        return this;
+    }
+
+    public String getKeyPassword() {
+        return keyPassword;
+    }
+
+    public ClientConfig setServerNameIdentification(boolean serverNameIdentification) {
+        this.serverNameIdentification = serverNameIdentification;
+        return this;
+    }
+
+    public boolean isServerNameIdentification() {
+        return serverNameIdentification;
+    }
+
+    public ClientConfig setClientAuthMode(ClientAuthMode clientAuthMode) {
+        this.clientAuthMode = clientAuthMode;
+        return this;
+    }
+
+    public ClientAuthMode getClientAuthMode() {
+        return clientAuthMode;
+    }
+
+    public ClientConfig setHttpProxyHandler(HttpProxyHandler httpProxyHandler) {
+        this.httpProxyHandler = httpProxyHandler;
+        return this;
+    }
+
+    public HttpProxyHandler getHttpProxyHandler() {
+        return httpProxyHandler;
+    }
+}

src/main/java/org/xbib/netty/http/client/HttpAddress.java

@@ -0,0 +1,113 @@
+package org.xbib.netty.http.client;
+
+import io.netty.handler.codec.http.HttpVersion;
+import org.xbib.net.URL;
+
+import java.net.InetSocketAddress;
+
+/**
+ * A handle for host, port, HTTP version, secure transport flag of a channel for HTTP.
+ */
+public class HttpAddress {
+
+    private static final HttpVersion HTTP_2_0 = HttpVersion.valueOf("HTTP/2.0");
+
+    private final String host;
+
+    private final Integer port;
+
+    private final HttpVersion version;
+
+    private final Boolean secure;
+
+    private InetSocketAddress inetSocketAddress;
+
+    public static HttpAddress http1(String host) {
+        return new HttpAddress(host, 80, HttpVersion.HTTP_1_1, false);
+    }
+
+    public static HttpAddress http1(String host, int port) {
+        return new HttpAddress(host, port, HttpVersion.HTTP_1_1, false);
+    }
+
+    public static HttpAddress secureHttp1(String host) {
+        return new HttpAddress(host, 443, HttpVersion.HTTP_1_1, true);
+    }
+
+    public static HttpAddress secureHttp1(String host, int port) {
+        return new HttpAddress(host, port, HttpVersion.HTTP_1_1, true);
+    }
+
+    public static HttpAddress http2(String host) {
+        return new HttpAddress(host, 443, HTTP_2_0, true);
+    }
+
+    public static HttpAddress http2(String host, int port) {
+        return new HttpAddress(host, port, HTTP_2_0, true);
+    }
+
+    public static HttpAddress http1(URL url) {
+        return new HttpAddress(url, HttpVersion.HTTP_1_1);
+    }
+
+    public static HttpAddress http2(URL url) {
+        return new HttpAddress(url, HTTP_2_0);
+    }
+
+    public static HttpAddress of(Request request) {
+        return new HttpAddress(request.base(), request.httpVersion());
+    }
+
+    public static HttpAddress of(URL url, HttpVersion httpVersion) {
+        return new HttpAddress(url, httpVersion);
+    }
+
+    public HttpAddress(URL url, HttpVersion version) {
+        this(url.getHost(), url.getPort(), version, "https".equals(url.getScheme()));
+    }
+
+    public HttpAddress(String host, Integer port, HttpVersion version, boolean secure) {
+        this.host = host;
+        this.port = (port == null || port == -1) ? secure ? 443 : 80 : port;
+        this.version = version;
+        this.secure = secure;
+    }
+
+    public InetSocketAddress getInetSocketAddress() {
+        if (inetSocketAddress == null) {
+            // this may execute DNS
+            this.inetSocketAddress = new InetSocketAddress(host, port);
+        }
+        return inetSocketAddress;
+    }
+
+    public URL base() {
+        return isSecure() ? URL.https().host(host).port(port).build() : URL.http().host(host).port(port).build();
+    }
+
+    public HttpVersion getVersion() {
+        return version;
+    }
+
+    public boolean isSecure() {
+        return secure;
+    }
+
+    public String toString() {
+        return host + ":" + port + " (version:" + version + ",secure:" + secure + ")";
+    }
+
+    @Override
+    public boolean equals(Object object) {
+        return object instanceof HttpAddress &&
+                host.equals(((HttpAddress) object).host) &&
+                (port != null && port.equals(((HttpAddress) object).port)) &&
+                version.equals(((HttpAddress) object).version) &&
+                secure.equals(((HttpAddress) object).secure);
+    }
+
+    @Override
+    public int hashCode() {
+        return host.hashCode() ^ port ^ version.hashCode() ^ secure.hashCode();
+    }
+}

src/main/java/org/xbib/netty/http/client/HttpClient.java

@@ -1,474 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.bootstrap.Bootstrap;
-import io.netty.buffer.ByteBufAllocator;
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelFuture;
-import io.netty.channel.ChannelFutureListener;
-import io.netty.channel.ChannelPromise;
-import io.netty.channel.EventLoopGroup;
-import io.netty.channel.pool.ChannelPool;
-import io.netty.channel.pool.FixedChannelPool;
-import io.netty.handler.codec.http.DefaultFullHttpRequest;
-import io.netty.handler.codec.http.DefaultHttpRequest;
-import io.netty.handler.codec.http.FullHttpRequest;
-import io.netty.handler.codec.http.FullHttpResponse;
-import io.netty.handler.codec.http.HttpHeaderNames;
-import io.netty.handler.codec.http.HttpMethod;
-import io.netty.handler.codec.http.HttpRequest;
-import io.netty.handler.codec.http.HttpResponse;
-import io.netty.handler.codec.http.HttpVersion;
-import io.netty.handler.codec.http.cookie.ClientCookieEncoder;
-import io.netty.handler.codec.http.cookie.Cookie;
-import io.netty.handler.ssl.OpenSsl;
-import io.netty.util.concurrent.Future;
-import io.netty.util.concurrent.FutureListener;
-import org.xbib.netty.http.client.internal.HttpClientChannelPoolMap;
-import org.xbib.netty.http.client.listener.CookieListener;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-import org.xbib.netty.http.client.listener.HttpHeadersListener;
-import org.xbib.netty.http.client.listener.HttpPushListener;
-import org.xbib.netty.http.client.listener.HttpResponseListener;
-import org.xbib.netty.http.client.util.InetAddressKey;
-import org.xbib.netty.http.client.util.NetworkUtils;
-
-import java.io.Closeable;
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.net.ConnectException;
-import java.net.URI;
-import java.net.URLDecoder;
-import java.util.Collection;
-import java.util.Map;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- * A Netty HTTP client.
- */
-public final class HttpClient implements Closeable {
-
-    private static final Logger logger = Logger.getLogger(HttpClient.class.getName());
-
-    private static final AtomicInteger streamId = new AtomicInteger(3);
-
-    private static final HttpClient INSTANCE = HttpClient.builder().build();
-
-    static {
-        NetworkUtils.extendSystemProperties();
-        logger.log(Level.FINE, () -> "OpenSSL ALPN support: " + OpenSsl.isAlpnSupported());
-        logger.log(Level.FINE, () -> "local host name = " + NetworkUtils.getLocalHostName("localhost"));
-        logger.log(Level.FINE, NetworkUtils::displayNetworkInterfaces);
-    }
-
-    private final ByteBufAllocator byteBufAllocator;
-
-    private final EventLoopGroup eventLoopGroup;
-
-    private final HttpClientChannelPoolMap poolMap;
-
-    /**
-     * Create a new HTTP client. Use {@link #builder()} to build HTTP client instance.
-     */
-    HttpClient(ByteBufAllocator byteBufAllocator,
-                       EventLoopGroup eventLoopGroup,
-                       Bootstrap bootstrap,
-                       int maxConnections,
-                       HttpClientChannelContext httpClientChannelContext) {
-        this.byteBufAllocator = byteBufAllocator;
-        this.eventLoopGroup = eventLoopGroup;
-        this.poolMap = new HttpClientChannelPoolMap(this, httpClientChannelContext, bootstrap, maxConnections);
-    }
-
-    public static HttpClient getInstance() {
-        return INSTANCE;
-    }
-
-    /**
-     * Create a builder to configure connecting.
-     *
-     * @return A builder
-     */
-    public static HttpClientBuilder builder() {
-        return new HttpClientBuilder();
-    }
-
-    public HttpClientRequestBuilder prepareRequest(HttpMethod method) {
-        return new HttpClientRequestBuilder(this, method, byteBufAllocator, streamId.getAndAdd(2));
-    }
-
-    /**
-     * Prepare a HTTP GET request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder prepareGet() {
-        return prepareRequest(HttpMethod.GET);
-    }
-
-    public HttpRequestBuilder prepareGet(String url) {
-        return prepareRequest(HttpMethod.GET).setURL(url);
-    }
-
-    /**
-     * Prepare a HTTP HEAD request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder prepareHead() {
-        return prepareRequest(HttpMethod.HEAD);
-    }
-
-    public HttpRequestBuilder prepareHead(String url) {
-        return prepareRequest(HttpMethod.HEAD).setURL(url);
-    }
-
-    /**
-     * Prepare a HTTP PUT request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder preparePut() {
-        return prepareRequest(HttpMethod.PUT);
-    }
-
-    public HttpRequestBuilder preparePut(String url) {
-        return prepareRequest(HttpMethod.PUT).setURL(url);
-    }
-
-    /**
-     * Prepare a HTTP POST request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder preparePost() {
-        return prepareRequest(HttpMethod.POST);
-    }
-
-    public HttpRequestBuilder preparePost(String url) {
-        return prepareRequest(HttpMethod.POST).setURL(url);
-    }
-
-    /**
-     * Prepare a HTTP DELETE request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder prepareDelete() {
-        return prepareRequest(HttpMethod.DELETE);
-    }
-
-    public HttpRequestBuilder prepareDelete(String url) {
-        return prepareRequest(HttpMethod.DELETE).setURL(url);
-    }
-
-    /**
-     * Prepare a HTTP OPTIONS request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder prepareOptions() {
-        return prepareRequest(HttpMethod.OPTIONS);
-    }
-
-    public HttpRequestBuilder prepareOptions(String url) {
-        return prepareRequest(HttpMethod.OPTIONS).setURL(url);
-    }
-
-    /**
-     * Prepare a HTTP PATCH request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder preparePatch() {
-        return prepareRequest(HttpMethod.PATCH);
-    }
-
-    public HttpRequestBuilder preparePatch(String url) {
-        return prepareRequest(HttpMethod.PATCH).setURL(url);
-    }
-
-    /**
-     * Prepare a HTTP TRACE request.
-     *
-     * @return a request builder
-     */
-    public HttpRequestBuilder prepareTrace() {
-        return prepareRequest(HttpMethod.TRACE);
-    }
-
-    public HttpRequestBuilder prepareTrace(String url) {
-        return prepareRequest(HttpMethod.TRACE).setURL(url);
-    }
-
-    public HttpClientChannelPoolMap poolMap() {
-        return poolMap;
-    }
-
-    /**
-     * Close client.
-     */
-    public void close() {
-        logger.log(Level.FINE, () -> "closing pool map");
-        poolMap.close();
-        logger.log(Level.FINE, () -> "closing event loop group");
-        if (!eventLoopGroup.isShuttingDown()) {
-            eventLoopGroup.shutdownGracefully();
-        }
-        logger.log(Level.FINE, () -> "closed");
-    }
-
-    public void dispatch(final HttpRequestContext httpRequestContext) {
-        final URI uri = httpRequestContext.getURI();
-        final HttpRequest httpRequest = httpRequestContext.getHttpRequest();
-        if (!httpRequestContext.getCookies().isEmpty()) {
-            logger.log(Level.FINE, () -> "configured cookies: " + httpRequestContext.getCookies());
-            Collection<Cookie> cookies = httpRequestContext.matchCookies();
-            if (!cookies.isEmpty()) {
-                logger.log(Level.FINE, () -> "updating cookie header with matched cookies: " + cookies);
-                httpRequest.headers().set(HttpHeaderNames.COOKIE, ClientCookieEncoder.STRICT.encode(cookies));
-            }
-        }
-        logger.log(Level.FINE, () -> "trying URL " + uri);
-        if (httpRequestContext.isExpired()) {
-            httpRequestContext.fail("request expired");
-        }
-        if (httpRequestContext.isFailed()) {
-            logger.log(Level.FINE, () -> "request is cancelled");
-            return;
-        }
-        HttpVersion version = httpRequestContext.getHttpRequest().protocolVersion();
-        boolean secure = "https".equals(uri.getScheme());
-        InetAddressKey inetAddressKey = new InetAddressKey(uri.getHost(), uri.getPort(), version, secure);
-        final FixedChannelPool pool = poolMap.get(inetAddressKey);
-        logger.log(Level.FINE, () -> "connecting to " + inetAddressKey);
-        Future<Channel> futureChannel = pool.acquire();
-        futureChannel.addListener((FutureListener<Channel>) future -> {
-            final ExceptionListener exceptionListener = httpRequestContext.getExceptionListener();
-            if (future.isSuccess()) {
-                Channel channel = future.getNow();
-                // set settings promise before adding httpRequestContext as a channel attribute
-                ChannelPromise settingsPromise = channel.newPromise();
-                httpRequestContext.setSettingsPromise(settingsPromise);
-                channel.attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).set(pool);
-                channel.attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).set(httpRequestContext);
-                HttpResponseListener httpResponseListener = httpRequestContext.getHttpResponseListener();
-                channel.attr(HttpClientChannelContextDefaults.RESPONSE_LISTENER_ATTRIBUTE_KEY).set(httpResponseListener);
-                HttpPushListener httpPushListener = httpRequestContext.getHttpPushListener();
-                channel.attr(HttpClientChannelContextDefaults.PUSH_LISTENER_ATTRIBUTE_KEY).set(httpPushListener);
-                HttpHeadersListener httpHeadersListener = httpRequestContext.getHttpHeadersListener();
-                channel.attr(HttpClientChannelContextDefaults.HEADER_LISTENER_ATTRIBUTE_KEY).set(httpHeadersListener);
-                CookieListener cookieListener = httpRequestContext.getCookieListener();
-                channel.attr(HttpClientChannelContextDefaults.COOKIE_LISTENER_ATTRIBUTE_KEY).set(cookieListener);
-                channel.attr(HttpClientChannelContextDefaults.EXCEPTION_LISTENER_ATTRIBUTE_KEY).set(exceptionListener);
-                if (httpRequestContext.isFailed()) {
-                    logger.log(Level.FINE, () -> "detected fail, close channel");
-                    future.cancel(true);
-                    if (channel.isOpen()) {
-                        channel.close();
-                    }
-                    logger.log(Level.FINE, () -> "release channel to pool");
-                    pool.release(channel);
-                    return;
-                }
-                if (httpRequest.protocolVersion().majorVersion() == 1) {
-                    logger.log(Level.FINE, "HTTP1: write and flush " + httpRequest.toString());
-                    channel.writeAndFlush(httpRequest)
-                            .addListener((ChannelFutureListener) future1 -> {
-                                if (httpRequestContext.isFailed()) {
-                                    logger.log(Level.FINE, () -> "detected fail, close now");
-                                    future1.cancel(true);
-                                    if (future1.channel().isOpen()) {
-                                        future1.channel().close();
-                                    }
-                                }
-                            });
-                } else if (httpRequest.protocolVersion().majorVersion() == 2) {
-                    logger.log(Level.FINE, () -> "waiting for HTTP/2 settings");
-                    settingsPromise.await(httpRequestContext.getTimeout(), TimeUnit.MILLISECONDS);
-                    logger.log(Level.FINE, () -> "waiting for HTTP/2 responses = " +
-                            httpRequestContext.getStreamIdPromiseMap().size());
-                    int timeout = httpRequestContext.getTimeout();
-                    for (Map.Entry<Integer, Map.Entry<ChannelFuture, ChannelPromise>> entry :
-                            httpRequestContext.getStreamIdPromiseMap().entrySet()) {
-                        ChannelFuture channelFuture = entry.getValue().getKey();
-                        if (channelFuture != null) {
-                            logger.log(Level.FINE, "waiting for channel, stream ID = " + entry.getKey());
-                            if (!channelFuture.awaitUninterruptibly(timeout, TimeUnit.MILLISECONDS)) {
-                                IllegalStateException illegalStateException =
-                                        new IllegalStateException("time out while waiting to write for stream id " +
-                                                entry.getKey());
-                                if (exceptionListener != null) {
-                                    exceptionListener.onException(illegalStateException);
-                                    httpRequestContext.fail(illegalStateException.getMessage());
-                                    final ChannelPool channelPool = channelFuture.channel()
-                                                    .attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-                                    channelPool.release(channelFuture.channel());
-                                }
-                                throw illegalStateException;
-                            }
-                            if (!channelFuture.isSuccess()) {
-                                throw new RuntimeException(channelFuture.cause());
-                            }
-                        }
-                        ChannelPromise promise = entry.getValue().getValue();
-                        logger.log(Level.FINE, "waiting for promise of stream ID = " + entry.getKey());
-                        if (!promise.awaitUninterruptibly(timeout, TimeUnit.MILLISECONDS)) {
-                            IllegalStateException illegalStateException =
-                                    new IllegalStateException("time out while waiting for response on stream id " +
-                                            entry.getKey());
-                            if (exceptionListener != null) {
-                                exceptionListener.onException(illegalStateException);
-                                httpRequestContext.fail(illegalStateException.getMessage());
-                                if (channelFuture != null) {
-                                    final ChannelPool channelPool = channelFuture.channel()
-                                                    .attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-                                    channelPool.release(channelFuture.channel());
-                                }
-                            }
-                            throw illegalStateException;
-                        }
-                        if (!promise.isSuccess()) {
-                            RuntimeException runtimeException = new RuntimeException(promise.cause());
-                            if (exceptionListener != null) {
-                                exceptionListener.onException(runtimeException);
-                                httpRequestContext.fail(runtimeException.getMessage());
-                                if (channelFuture != null) {
-                                    final ChannelPool channelPool = channelFuture.channel()
-                                            .attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-                                    channelPool.release(channelFuture.channel());
-                                }
-                            }
-                            throw runtimeException;
-                        }
-                    }
-                }
-            } else {
-                if (exceptionListener != null) {
-                    exceptionListener.onException(future.cause());
-                }
-                httpRequestContext.fail(new ConnectException("unable to connect to " + inetAddressKey));
-            }
-        });
-    }
-
-    public boolean tryRedirect(Channel channel, FullHttpResponse httpResponse, HttpRequestContext httpRequestContext)
-            throws IOException {
-        if (httpRequestContext.isFollowRedirect()) {
-            String redirUrl = findRedirect(httpRequestContext, httpResponse);
-            if (redirUrl != null) {
-                HttpMethod method = httpResponse.status().code() == 303 ? HttpMethod.GET :
-                        httpRequestContext.getHttpRequest().method();
-                if (httpRequestContext.getRedirectCount().getAndIncrement() < httpRequestContext.getMaxRedirects()) {
-                    dispatchRedirect(method, URI.create(redirUrl), httpRequestContext);
-                } else {
-                    httpRequestContext.fail("too many redirections");
-                    final ChannelPool channelPool =
-                            channel.attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-                    channelPool.release(channel);
-                }
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private String findRedirect(HttpRequestContext httpRequestContext, HttpResponse httpResponse)
-            throws IOException {
-        if (httpResponse == null) {
-            return null;
-        }
-        switch (httpResponse.status().code()) {
-            case 300:
-            case 301:
-            case 302:
-            case 303:
-            case 305:
-            case 307:
-            case 308:
-                String location = URLDecoder.decode(httpResponse.headers().get(HttpHeaderNames.LOCATION), "UTF-8");
-                if (location != null && (location.toLowerCase().startsWith("http://") ||
-                        location.toLowerCase().startsWith("https://"))) {
-                    logger.log(Level.FINE, "(absolute) redirect to " + location);
-                    return location;
-                } else {
-                    logger.log(Level.FINE, "(relative->absolute) redirect to " + location);
-                    return makeAbsolute(httpRequestContext.getURI(), location);
-                }
-            default:
-                break;
-        }
-        return null;
-    }
-
-    private void dispatchRedirect(HttpMethod method, URI uri,
-                                  HttpRequestContext httpRequestContext) {
-        final String uriStr = httpRequestContext.getHttpRequest().protocolVersion().majorVersion() == 2 ?
-                uri.toASCIIString() : makeRelative(uri);
-        final HttpRequest httpRequest;
-        if (method.equals(httpRequestContext.getHttpRequest().method()) &&
-                httpRequestContext.getHttpRequest() instanceof DefaultFullHttpRequest) {
-            DefaultFullHttpRequest defaultFullHttpRequest = (DefaultFullHttpRequest) httpRequestContext.getHttpRequest();
-            FullHttpRequest fullHttpRequest = defaultFullHttpRequest.copy();
-            fullHttpRequest.setUri(uriStr);
-            httpRequest = fullHttpRequest;
-        } else {
-            httpRequest = new DefaultHttpRequest(httpRequestContext.getHttpRequest().protocolVersion(), method, uriStr);
-        }
-        for (Map.Entry<String, String> e : httpRequestContext.getHttpRequest().headers().entries()) {
-            httpRequest.headers().add(e.getKey(), e.getValue());
-        }
-        httpRequest.headers().set(HttpHeaderNames.HOST, uri.getHost());
-        HttpRequestContext redirectContext = new HttpRequestContext(uri, httpRequest,
-                httpRequestContext);
-        logger.log(Level.FINE, "dispatchRedirect url = " + uri + " with new request " + httpRequest.toString());
-        dispatch(redirectContext);
-    }
-
-    private String makeRelative(URI base) {
-        String uri = base.getPath();
-        if (base.getQuery() != null) {
-            uri = uri + "?" + base.getQuery();
-        }
-        return uri;
-    }
-
-    private String makeAbsolute(URI base, String location) throws UnsupportedEncodingException {
-        String path = base.getPath() == null ? "/" : URLDecoder.decode(base.getPath(), "UTF-8");
-        if (location.startsWith("/")) {
-            path = location;
-        } else if (path.endsWith("/")) {
-            path += location;
-        } else {
-            path += "/" + location;
-        }
-        String scheme = base.getScheme();
-        StringBuilder sb = new StringBuilder(scheme).append("://").append(base.getHost());
-        int defaultPort = "http".equals(scheme) ? 80 : "https".equals(scheme) ? 443 : -1;
-        if (defaultPort != -1 && base.getPort() != -1 && defaultPort != base.getPort()) {
-            sb.append(":").append(base.getPort());
-        }
-        if (path.charAt(0) != '/') {
-            sb.append('/');
-        }
-        sb.append(path);
-        return sb.toString();
-    }
-}

src/main/java/org/xbib/netty/http/client/HttpClientBuilder.java

@@ -1,333 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.bootstrap.Bootstrap;
-import io.netty.buffer.ByteBufAllocator;
-import io.netty.buffer.PooledByteBufAllocator;
-import io.netty.channel.ChannelOption;
-import io.netty.channel.EventLoopGroup;
-import io.netty.channel.nio.NioEventLoopGroup;
-import io.netty.channel.socket.SocketChannel;
-import io.netty.channel.socket.nio.NioSocketChannel;
-import io.netty.handler.proxy.HttpProxyHandler;
-import io.netty.handler.proxy.Socks4ProxyHandler;
-import io.netty.handler.proxy.Socks5ProxyHandler;
-import io.netty.handler.ssl.CipherSuiteFilter;
-import io.netty.handler.ssl.SslProvider;
-import org.xbib.netty.http.client.internal.HttpClientThreadFactory;
-import org.xbib.netty.http.client.util.ClientAuthMode;
-
-import javax.net.ssl.TrustManagerFactory;
-import java.io.InputStream;
-import java.net.InetSocketAddress;
-
-/**
- *
- */
-public class HttpClientBuilder implements HttpClientChannelContextDefaults {
-
-    private ByteBufAllocator byteBufAllocator;
-
-    private EventLoopGroup eventLoopGroup;
-
-    private Class<? extends SocketChannel> socketChannelClass;
-
-    private Bootstrap bootstrap;
-
-    // let Netty decide about thread number, default is Runtime.getRuntime().availableProcessors() * 2
-    private int threads = 0;
-
-    private boolean tcpNodelay = DEFAULT_TCP_NODELAY;
-
-    private boolean keepAlive = DEFAULT_SO_KEEPALIVE;
-
-    private boolean reuseAddr = DEFAULT_SO_REUSEADDR;
-
-    private int tcpSendBufferSize = DEFAULT_TCP_SEND_BUFFER_SIZE;
-
-    private int tcpReceiveBufferSize = DEFAULT_TCP_RECEIVE_BUFFER_SIZE;
-
-    private int maxInitialLineLength = DEFAULT_MAX_INITIAL_LINE_LENGTH;
-
-    private int maxHeadersSize = DEFAULT_MAX_HEADERS_SIZE;
-
-    private int maxChunkSize = DEFAULT_MAX_CHUNK_SIZE;
-
-    private int maxConnections = DEFAULT_MAX_CONNECTIONS;
-
-    private int maxContentLength = DEFAULT_MAX_CONTENT_LENGTH;
-
-    private int maxCompositeBufferComponents = DEFAULT_MAX_COMPOSITE_BUFFER_COMPONENTS;
-
-    private int connectTimeoutMillis = DEFAULT_TIMEOUT_MILLIS;
-
-    private int readTimeoutMillis = DEFAULT_TIMEOUT_MILLIS;
-
-    private boolean enableGzip = DEFAULT_ENABLE_GZIP;
-
-    private boolean installHttp2Upgrade = DEFAULT_INSTALL_HTTP_UPGRADE2;
-
-    private SslProvider sslProvider = DEFAULT_SSL_PROVIDER;
-
-    private Iterable<String> ciphers = DEFAULT_CIPHERS;
-
-    private CipherSuiteFilter cipherSuiteFilter = DEFAULT_CIPHER_SUITE_FILTER;
-
-    private TrustManagerFactory trustManagerFactory = DEFAULT_TRUST_MANAGER_FACTORY;
-
-    private InputStream keyCertChainInputStream;
-
-    private InputStream keyInputStream;
-
-    private String keyPassword;
-
-    private boolean useServerNameIdentification = DEFAULT_USE_SERVER_NAME_IDENTIFICATION;
-
-    private ClientAuthMode clientAuthMode = DEFAULT_SSL_CLIENT_AUTH_MODE;
-
-    private HttpProxyHandler httpProxyHandler;
-
-    private Socks4ProxyHandler socks4ProxyHandler;
-
-    private Socks5ProxyHandler socks5ProxyHandler;
-
-    /**
-     * Set byte buf allocator for payload in HTTP requests.
-     * @param byteBufAllocator the byte buf allocator
-     * @return this builder
-     */
-    public HttpClientBuilder withByteBufAllocator(ByteBufAllocator byteBufAllocator) {
-        this.byteBufAllocator = byteBufAllocator;
-        return this;
-    }
-
-    public HttpClientBuilder withEventLoop(EventLoopGroup eventLoopGroup) {
-        this.eventLoopGroup = eventLoopGroup;
-        return this;
-    }
-
-    public HttpClientBuilder withChannelClass(Class<SocketChannel> socketChannelClass) {
-        this.socketChannelClass = socketChannelClass;
-        return this;
-    }
-
-    public HttpClientBuilder withBootstrap(Bootstrap bootstrap) {
-        this.bootstrap = bootstrap;
-        return this;
-    }
-
-    public HttpClientBuilder setConnectTimeoutMillis(int connectTimeoutMillis) {
-        this.connectTimeoutMillis = connectTimeoutMillis;
-        return this;
-    }
-
-    public HttpClientBuilder setThreadCount(int count) {
-        this.threads = count;
-        return this;
-    }
-
-    public HttpClientBuilder setTcpSendBufferSize(int tcpSendBufferSize) {
-        this.tcpSendBufferSize = tcpSendBufferSize;
-        return this;
-    }
-
-    public HttpClientBuilder setTcpReceiveBufferSize(int tcpReceiveBufferSize) {
-        this.tcpReceiveBufferSize = tcpReceiveBufferSize;
-        return this;
-    }
-
-    public HttpClientBuilder setTcpNodelay(boolean tcpNodelay) {
-        this.tcpNodelay = tcpNodelay;
-        return this;
-    }
-
-    public HttpClientBuilder setKeepAlive(boolean keepAlive) {
-        this.keepAlive = keepAlive;
-        return this;
-    }
-
-    public HttpClientBuilder setReuseAddr(boolean reuseAddr) {
-        this.reuseAddr = reuseAddr;
-        return this;
-    }
-
-    public HttpClientBuilder setMaxChunkSize(int maxChunkSize) {
-        this.maxChunkSize = maxChunkSize;
-        return this;
-    }
-
-    public HttpClientBuilder setMaxInitialLineLength(int maxInitialLineLength) {
-        this.maxInitialLineLength = maxInitialLineLength;
-        return this;
-    }
-
-    public HttpClientBuilder setMaxHeadersSize(int maxHeadersSize) {
-        this.maxHeadersSize = maxHeadersSize;
-        return this;
-    }
-
-    public HttpClientBuilder setMaxContentLength(int maxContentLength) {
-        this.maxContentLength = maxContentLength;
-        return this;
-    }
-
-    public HttpClientBuilder setMaxCompositeBufferComponents(int maxCompositeBufferComponents) {
-        this.maxCompositeBufferComponents = maxCompositeBufferComponents;
-        return this;
-    }
-
-    public HttpClientBuilder setMaxConnections(int maxConnections) {
-        this.maxConnections = maxConnections;
-        return this;
-    }
-
-    public HttpClientBuilder setReadTimeoutMillis(int readTimeoutMillis) {
-        this.readTimeoutMillis = readTimeoutMillis;
-        return this;
-    }
-
-    public HttpClientBuilder setEnableGzip(boolean enableGzip) {
-        this.enableGzip = enableGzip;
-        return this;
-    }
-
-    public HttpClientBuilder setInstallHttp2Upgrade(boolean installHttp2Upgrade) {
-        this.installHttp2Upgrade = installHttp2Upgrade;
-        return this;
-    }
-
-    public HttpClientBuilder withSslProvider(SslProvider sslProvider) {
-        this.sslProvider = sslProvider;
-        return this;
-    }
-
-    public HttpClientBuilder withJdkSslProvider() {
-        this.sslProvider = SslProvider.JDK;
-        return this;
-    }
-
-    public HttpClientBuilder withOpenSSLSslProvider() {
-        this.sslProvider = SslProvider.OPENSSL;
-        return this;
-    }
-
-    public HttpClientBuilder withCiphers(Iterable<String> ciphers) {
-        this.ciphers = ciphers;
-        return this;
-    }
-
-    public HttpClientBuilder withCipherSuiteFilter(CipherSuiteFilter cipherSuiteFilter) {
-        this.cipherSuiteFilter = cipherSuiteFilter;
-        return this;
-    }
-
-    public HttpClientBuilder withTrustManagerFactory(TrustManagerFactory trustManagerFactory) {
-        this.trustManagerFactory = trustManagerFactory;
-        return this;
-    }
-
-    public HttpClientBuilder setKeyCert(InputStream keyCertChainInputStream, InputStream keyInputStream) {
-        this.keyCertChainInputStream = keyCertChainInputStream;
-        this.keyInputStream = keyInputStream;
-        return this;
-    }
-
-    public HttpClientBuilder setKeyCert(InputStream keyCertChainInputStream, InputStream keyInputStream,
-                                        String keyPassword) {
-        this.keyCertChainInputStream = keyCertChainInputStream;
-        this.keyInputStream = keyInputStream;
-        this.keyPassword = keyPassword;
-        return this;
-    }
-
-    public HttpClientBuilder setUseServerNameIdentification(boolean useServerNameIdentification) {
-        this.useServerNameIdentification = useServerNameIdentification;
-        return this;
-    }
-
-    public HttpClientBuilder setClientAuthMode(ClientAuthMode clientAuthMode) {
-        this.clientAuthMode = clientAuthMode;
-        return this;
-    }
-
-    public HttpClientBuilder setHttpProxyHandler(InetSocketAddress proxyAddress) {
-        this.httpProxyHandler = new HttpProxyHandler(proxyAddress);
-        return this;
-    }
-
-    public HttpClientBuilder setHttpProxyHandler(InetSocketAddress proxyAddress, String username, String password) {
-        this.httpProxyHandler = new HttpProxyHandler(proxyAddress, username, password);
-        return this;
-    }
-
-    public HttpClientBuilder setSocks4Proxy(InetSocketAddress proxyAddress) {
-        this.socks4ProxyHandler = new Socks4ProxyHandler(proxyAddress);
-        return this;
-    }
-
-    public HttpClientBuilder setSocks4Proxy(InetSocketAddress proxyAddress, String username) {
-        this.socks4ProxyHandler = new Socks4ProxyHandler(proxyAddress, username);
-        return this;
-    }
-
-    public HttpClientBuilder setSocks5Proxy(InetSocketAddress proxyAddress) {
-        this.socks5ProxyHandler = new Socks5ProxyHandler(proxyAddress);
-        return this;
-    }
-
-    public HttpClientBuilder setSocks5Proxy(InetSocketAddress proxyAddress, String username, String password) {
-        this.socks5ProxyHandler = new Socks5ProxyHandler(proxyAddress, username, password);
-        return this;
-    }
-
-    /**
-     * Build a HTTP client.
-     * @return  a http client
-     */
-    public HttpClient build() {
-        if (byteBufAllocator == null) {
-            byteBufAllocator = PooledByteBufAllocator.DEFAULT;
-        }
-        if (eventLoopGroup == null) {
-            eventLoopGroup = new NioEventLoopGroup(threads, new HttpClientThreadFactory());
-        }
-        if (socketChannelClass == null) {
-            socketChannelClass = NioSocketChannel.class;
-        }
-        if (bootstrap == null) {
-            bootstrap = new Bootstrap();
-        }
-        bootstrap.option(ChannelOption.TCP_NODELAY, tcpNodelay);
-        bootstrap.option(ChannelOption.SO_KEEPALIVE, keepAlive);
-        bootstrap.option(ChannelOption.SO_REUSEADDR, reuseAddr);
-        bootstrap.option(ChannelOption.SO_SNDBUF, tcpSendBufferSize);
-        bootstrap.option(ChannelOption.SO_RCVBUF, tcpReceiveBufferSize);
-        bootstrap.option(ChannelOption.ALLOCATOR, byteBufAllocator);
-        bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, connectTimeoutMillis);
-        bootstrap.group(eventLoopGroup);
-        bootstrap.channel(socketChannelClass);
-        final HttpClientChannelContext httpClientChannelContext =
-                new HttpClientChannelContext(maxInitialLineLength, maxHeadersSize, maxChunkSize, maxContentLength,
-                        maxCompositeBufferComponents,
-                        readTimeoutMillis, enableGzip, installHttp2Upgrade,
-                        sslProvider, ciphers, cipherSuiteFilter, trustManagerFactory,
-                        keyCertChainInputStream, keyInputStream, keyPassword,
-                        useServerNameIdentification, clientAuthMode,
-                        httpProxyHandler, socks4ProxyHandler, socks5ProxyHandler);
-        return new HttpClient(byteBufAllocator, eventLoopGroup, bootstrap, maxConnections, httpClientChannelContext);
-    }
-}

src/main/java/org/xbib/netty/http/client/HttpClientChannelContext.java

@@ -1,193 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.handler.proxy.HttpProxyHandler;
-import io.netty.handler.proxy.Socks4ProxyHandler;
-import io.netty.handler.proxy.Socks5ProxyHandler;
-import io.netty.handler.ssl.CipherSuiteFilter;
-import io.netty.handler.ssl.SslProvider;
-import org.xbib.netty.http.client.util.ClientAuthMode;
-
-import javax.net.ssl.TrustManagerFactory;
-import java.io.InputStream;
-
-/**
- */
-public final class HttpClientChannelContext {
-
-    private final int maxInitialLineLength;
-
-    private final int maxHeaderSize;
-
-    private final int maxChunkSize;
-
-    private final int maxContentLength;
-
-    private final int maxCompositeBufferComponents;
-
-    private final int readTimeoutMillis;
-
-    private final boolean enableGzip;
-
-    private final boolean installHttp2Upgrade;
-
-    private final SslProvider sslProvider;
-
-    private final Iterable<String> ciphers;
-
-    private final CipherSuiteFilter cipherSuiteFilter;
-
-    private final TrustManagerFactory trustManagerFactory;
-
-    private final InputStream keyCertChainInputStream;
-
-    private final InputStream keyInputStream;
-
-    private final String keyPassword;
-
-    private final boolean useServerNameIdentification;
-
-    private final ClientAuthMode clientAuthMode;
-
-    private final HttpProxyHandler httpProxyHandler;
-
-    private final Socks4ProxyHandler socks4ProxyHandler;
-
-    private final Socks5ProxyHandler socks5ProxyHandler;
-
-    HttpClientChannelContext(int maxInitialLineLength,
-                             int maxHeaderSize,
-                             int maxChunkSize,
-                             int maxContentLength,
-                             int maxCompositeBufferComponents,
-                             int readTimeoutMillis,
-                             boolean enableGzip,
-                             boolean installHttp2Upgrade,
-                             SslProvider sslProvider,
-                             Iterable<String> ciphers,
-                             CipherSuiteFilter cipherSuiteFilter,
-                             TrustManagerFactory trustManagerFactory,
-                             InputStream keyCertChainInputStream,
-                             InputStream keyInputStream,
-                             String keyPassword,
-                             boolean useServerNameIdentification,
-                             ClientAuthMode clientAuthMode,
-                             HttpProxyHandler httpProxyHandler,
-                             Socks4ProxyHandler socks4ProxyHandler,
-                             Socks5ProxyHandler socks5ProxyHandler) {
-        this.maxInitialLineLength = maxInitialLineLength;
-        this.maxHeaderSize = maxHeaderSize;
-        this.maxChunkSize = maxChunkSize;
-        this.maxContentLength = maxContentLength;
-        this.maxCompositeBufferComponents = maxCompositeBufferComponents;
-        this.readTimeoutMillis = readTimeoutMillis;
-        this.enableGzip = enableGzip;
-        this.installHttp2Upgrade = installHttp2Upgrade;
-        this.sslProvider = sslProvider;
-        this.ciphers = ciphers;
-        this.cipherSuiteFilter = cipherSuiteFilter;
-        this.trustManagerFactory = trustManagerFactory;
-        this.keyCertChainInputStream = keyCertChainInputStream;
-        this.keyInputStream = keyInputStream;
-        this.keyPassword = keyPassword;
-        this.useServerNameIdentification = useServerNameIdentification;
-        this.clientAuthMode = clientAuthMode;
-        this.httpProxyHandler = httpProxyHandler;
-        this.socks4ProxyHandler = socks4ProxyHandler;
-        this.socks5ProxyHandler = socks5ProxyHandler;
-    }
-
-    public int getMaxInitialLineLength() {
-        return maxInitialLineLength;
-    }
-
-    public int getMaxHeaderSize() {
-        return maxHeaderSize;
-    }
-
-    public int getMaxChunkSize() {
-        return maxChunkSize;
-    }
-
-    public int getMaxContentLength() {
-        return maxContentLength;
-    }
-
-    public int getMaxCompositeBufferComponents() {
-        return maxCompositeBufferComponents;
-    }
-
-    public int getReadTimeoutMillis() {
-        return readTimeoutMillis;
-    }
-
-    public boolean isGzipEnabled() {
-        return enableGzip;
-    }
-
-    public boolean isInstallHttp2Upgrade() {
-        return installHttp2Upgrade;
-    }
-
-    public SslProvider getSslProvider() {
-        return sslProvider;
-    }
-
-    public Iterable<String> getCiphers() {
-        return ciphers;
-    }
-
-    public CipherSuiteFilter getCipherSuiteFilter() {
-        return cipherSuiteFilter;
-    }
-
-    public TrustManagerFactory getTrustManagerFactory() {
-        return trustManagerFactory;
-    }
-
-    public InputStream getKeyCertChainInputStream() {
-        return keyCertChainInputStream;
-    }
-
-    public InputStream getKeyInputStream() {
-        return keyInputStream;
-    }
-
-    public String getKeyPassword() {
-        return keyPassword;
-    }
-
-    public boolean isUseServerNameIdentification() {
-        return useServerNameIdentification;
-    }
-
-    public ClientAuthMode getClientAuthMode() {
-        return clientAuthMode;
-    }
-
-    public HttpProxyHandler getHttpProxyHandler() {
-        return httpProxyHandler;
-    }
-
-    public Socks4ProxyHandler getSocks4ProxyHandler() {
-        return socks4ProxyHandler;
-    }
-
-    public Socks5ProxyHandler getSocks5ProxyHandler() {
-        return socks5ProxyHandler;
-    }
-}

src/main/java/org/xbib/netty/http/client/HttpClientChannelContextDefaults.java

@@ -1,153 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.channel.pool.ChannelPool;
-import io.netty.handler.codec.http2.Http2SecurityUtil;
-import io.netty.handler.ssl.CipherSuiteFilter;
-import io.netty.handler.ssl.OpenSsl;
-import io.netty.handler.ssl.SslProvider;
-import io.netty.handler.ssl.SupportedCipherSuiteFilter;
-import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
-import io.netty.util.AttributeKey;
-import org.xbib.netty.http.client.listener.CookieListener;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-import org.xbib.netty.http.client.listener.HttpHeadersListener;
-import org.xbib.netty.http.client.listener.HttpPushListener;
-import org.xbib.netty.http.client.listener.HttpResponseListener;
-import org.xbib.netty.http.client.util.ClientAuthMode;
-import org.xbib.netty.http.client.util.InetAddressKey;
-
-import javax.net.ssl.TrustManagerFactory;
-
-/**
- */
-public interface HttpClientChannelContextDefaults {
-
-    AttributeKey<ChannelPool> CHANNEL_POOL_ATTRIBUTE_KEY =
-            AttributeKey.valueOf("httpClientChannelPool");
-
-    AttributeKey<HttpRequestContext> REQUEST_CONTEXT_ATTRIBUTE_KEY =
-            AttributeKey.valueOf("httpClientRequestContext");
-
-    AttributeKey<HttpResponseListener> RESPONSE_LISTENER_ATTRIBUTE_KEY =
-            AttributeKey.valueOf("httpClientResponseListener");
-
-    AttributeKey<HttpHeadersListener> HEADER_LISTENER_ATTRIBUTE_KEY =
-            AttributeKey.valueOf("httpHeaderListener");
-
-    AttributeKey<CookieListener> COOKIE_LISTENER_ATTRIBUTE_KEY =
-            AttributeKey.valueOf("cookieListener");
-
-    AttributeKey<HttpPushListener> PUSH_LISTENER_ATTRIBUTE_KEY =
-            AttributeKey.valueOf("pushListener");
-
-    AttributeKey<ExceptionListener> EXCEPTION_LISTENER_ATTRIBUTE_KEY =
-            AttributeKey.valueOf("httpClientExceptionListener");
-
-    /**
-     * Default for TCP_NODELAY.
-     */
-    boolean DEFAULT_TCP_NODELAY = true;
-
-    /**
-     * Default for SO_KEEPALIVE.
-     */
-    boolean DEFAULT_SO_KEEPALIVE = true;
-
-    /**
-     * Default for SO_REUSEADDR.
-     */
-    boolean DEFAULT_SO_REUSEADDR = true;
-
-    /**
-     * Set TCP send buffer to 64k per socket.
-     */
-    int DEFAULT_TCP_SEND_BUFFER_SIZE = 64 * 1024;
-
-    /**
-     * Set TCP receive buffer to 64k per socket.
-     */
-    int DEFAULT_TCP_RECEIVE_BUFFER_SIZE = 64 * 1024;
-
-    /**
-     * Set HTTP chunk maximum size to 8k.
-     * See {@link io.netty.handler.codec.http.HttpClientCodec}.
-     */
-    int DEFAULT_MAX_CHUNK_SIZE = 8 * 1024;
-
-    /**
-     * Set HTTP initial line length to 4k.
-     * See {@link io.netty.handler.codec.http.HttpClientCodec}.
-     */
-    int DEFAULT_MAX_INITIAL_LINE_LENGTH = 4 * 1024;
-
-    /**
-     * Set HTTP maximum headers size to 8k.
-     * See  {@link io.netty.handler.codec.http.HttpClientCodec}.
-     */
-    int DEFAULT_MAX_HEADERS_SIZE = 8 * 1024;
-
-    /**
-     * Set maximum content length to 100 MB.
-     */
-    int DEFAULT_MAX_CONTENT_LENGTH = 100 * 1024 * 1024;
-
-    /**
-     * This is Netty's default.
-     * See {@link io.netty.handler.codec.MessageAggregator#DEFAULT_MAX_COMPOSITEBUFFER_COMPONENTS}.
-     */
-    int DEFAULT_MAX_COMPOSITE_BUFFER_COMPONENTS = 1024;
-
-    /**
-     * Allow maximum concurrent connections to an {@link InetAddressKey}.
-     * Usually, browsers restrict concurrent connections to 8 for a single address.
-     */
-    int DEFAULT_MAX_CONNECTIONS = 8;
-
-    /**
-     * Default read/write timeout in milliseconds.
-     */
-    int DEFAULT_TIMEOUT_MILLIS = 5000;
-
-    /**
-     * Default for gzip codec.
-     */
-    boolean DEFAULT_ENABLE_GZIP = true;
-
-    /**
-     * Default for HTTP/2 only.
-     */
-    boolean DEFAULT_INSTALL_HTTP_UPGRADE2 = false;
-
-    /**
-     * Default SSL provider.
-     */
-    SslProvider DEFAULT_SSL_PROVIDER = OpenSsl.isAlpnSupported() ? SslProvider.OPENSSL : SslProvider.JDK;
-
-    Iterable<String> DEFAULT_CIPHERS = Http2SecurityUtil.CIPHERS;
-
-    CipherSuiteFilter DEFAULT_CIPHER_SUITE_FILTER = SupportedCipherSuiteFilter.INSTANCE;
-
-    TrustManagerFactory DEFAULT_TRUST_MANAGER_FACTORY = InsecureTrustManagerFactory.INSTANCE;
-
-    boolean DEFAULT_USE_SERVER_NAME_IDENTIFICATION = true;
-
-    /**
-     * Default for SSL client authentication.
-     */
-    ClientAuthMode DEFAULT_SSL_CLIENT_AUTH_MODE = ClientAuthMode.NONE;
-}

src/main/java/org/xbib/netty/http/client/HttpClientRequestBuilder.java

@@ -1,450 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufAllocator;
-import io.netty.buffer.UnpooledByteBufAllocator;
-import io.netty.handler.codec.http.DefaultFullHttpRequest;
-import io.netty.handler.codec.http.DefaultHttpHeaders;
-import io.netty.handler.codec.http.DefaultHttpRequest;
-import io.netty.handler.codec.http.FullHttpResponse;
-import io.netty.handler.codec.http.HttpHeaderNames;
-import io.netty.handler.codec.http.HttpHeaderValues;
-import io.netty.handler.codec.http.HttpMethod;
-import io.netty.handler.codec.http.HttpRequest;
-import io.netty.handler.codec.http.HttpVersion;
-import io.netty.handler.codec.http.QueryStringDecoder;
-import io.netty.handler.codec.http.QueryStringEncoder;
-import io.netty.handler.codec.http.cookie.Cookie;
-import io.netty.handler.codec.http2.HttpConversionUtil;
-import io.netty.util.AsciiString;
-import io.netty.util.CharsetUtil;
-import org.xbib.netty.http.client.listener.CookieListener;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-import org.xbib.netty.http.client.listener.HttpHeadersListener;
-import org.xbib.netty.http.client.listener.HttpPushListener;
-import org.xbib.netty.http.client.listener.HttpResponseListener;
-
-import java.io.IOException;
-import java.net.URI;
-import java.nio.charset.StandardCharsets;
-import java.time.Instant;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
-import java.time.format.DateTimeFormatter;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.function.Function;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- *
- */
-public class HttpClientRequestBuilder implements HttpRequestBuilder, HttpRequestDefaults {
-
-    private static final Logger logger = Logger.getLogger(HttpClientRequestBuilder.class.getName());
-
-    private static final HttpVersion HTTP_2_0 = HttpVersion.valueOf("HTTP/2.0");
-
-    private final HttpClient httpClient;
-
-    private final ByteBufAllocator byteBufAllocator;
-
-    private final AtomicInteger streamId;
-
-    private final DefaultHttpHeaders headers;
-
-    private final List<String> removeHeaders;
-
-    private final Set<Cookie> cookies;
-
-    private final HttpMethod httpMethod;
-
-    private int timeout = DEFAULT_TIMEOUT_MILLIS;
-
-    private HttpVersion httpVersion = DEFAULT_HTTP_VERSION;
-
-    private String userAgent = DEFAULT_USER_AGENT;
-
-    private boolean gzip = DEFAULT_GZIP;
-
-    private boolean followRedirect = DEFAULT_FOLLOW_REDIRECT;
-
-    private int maxRedirects = DEFAULT_MAX_REDIRECT;
-
-    private URI uri = DEFAULT_URI;
-
-    private QueryStringEncoder queryStringEncoder;
-
-    private ByteBuf content;
-
-    private HttpRequest httpRequest;
-
-    private HttpRequestFuture<String> httpRequestFuture = DEFAULT_FUTURE;
-
-    private HttpRequestContext httpRequestContext;
-
-    private HttpResponseListener httpResponseListener;
-
-    private ExceptionListener exceptionListener;
-
-    private HttpHeadersListener httpHeadersListener;
-
-    private CookieListener cookieListener;
-
-    private HttpPushListener httpPushListener;
-
-    protected HttpClientRequestBuilder(HttpMethod httpMethod,
-                             ByteBufAllocator byteBufAllocator, int streamId) {
-        this(null, httpMethod, byteBufAllocator, streamId);
-    }
-
-    /**
-     * Construct HTTP client request builder.
-     *
-     * @param httpClient HTTP client
-     * @param httpMethod HTTP method
-     * @param byteBufAllocator byte buf allocator
-     */
-    HttpClientRequestBuilder(HttpClient httpClient, HttpMethod httpMethod,
-                             ByteBufAllocator byteBufAllocator, int streamId) {
-        this.httpClient = httpClient;
-        this.httpMethod = httpMethod;
-        this.byteBufAllocator = byteBufAllocator;
-        this.streamId = new AtomicInteger(streamId);
-        this.headers = new DefaultHttpHeaders();
-        this.removeHeaders = new ArrayList<>();
-        this.cookies = new HashSet<>();
-    }
-
-    public static HttpRequestBuilder builder(HttpMethod httpMethod) {
-        return new HttpClientRequestBuilder(httpMethod, UnpooledByteBufAllocator.DEFAULT, 3);
-    }
-
-    public HttpRequestBuilder withFuture(HttpRequestFuture<String> httpRequestFuture) {
-        this.httpRequestFuture = httpRequestFuture;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setHttp1() {
-        this.httpVersion = HttpVersion.HTTP_1_1;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setHttp2() {
-        this.httpVersion = HTTP_2_0;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setVersion(String httpVersion) {
-        this.httpVersion = HttpVersion.valueOf(httpVersion);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setTimeout(int timeout) {
-        this.timeout = timeout;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setURL(String url) {
-        this.uri = URI.create(url);
-        QueryStringDecoder queryStringDecoder = new QueryStringDecoder(uri, StandardCharsets.UTF_8);
-        this.queryStringEncoder = new QueryStringEncoder(queryStringDecoder.path());
-        for (Map.Entry<String, List<String>> entry : queryStringDecoder.parameters().entrySet()) {
-            for (String value : entry.getValue()) {
-                queryStringEncoder.addParam(entry.getKey(), value);
-            }
-        }
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder path(String path) {
-        if (this.uri != null) {
-            setURL(this.uri.resolve(path).toString());
-        } else {
-            setURL(path);
-        }
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder addHeader(String name, Object value) {
-        headers.add(name, value);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setHeader(String name, Object value) {
-        headers.set(name, value);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder removeHeader(String name) {
-        removeHeaders.add(name);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder addParam(String name, String value) {
-        if (queryStringEncoder != null) {
-            queryStringEncoder.addParam(name, value);
-        }
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder addCookie(Cookie cookie) {
-        cookies.add(cookie);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder contentType(String contentType) {
-        addHeader(HttpHeaderNames.CONTENT_TYPE, contentType);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder acceptGzip(boolean gzip) {
-        this.gzip = gzip;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setFollowRedirect(boolean followRedirect) {
-        this.followRedirect = followRedirect;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setMaxRedirects(int maxRedirects) {
-        this.maxRedirects = maxRedirects;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder setUserAgent(String userAgent) {
-        this.userAgent = userAgent;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder text(String text) throws IOException {
-        content(text, HttpHeaderValues.TEXT_PLAIN);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder json(String json) throws IOException {
-        content(json, HttpHeaderValues.APPLICATION_JSON);
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder xml(String xml) throws IOException {
-        content(xml, "application/xml");
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder content(CharSequence charSequence, String contentType) throws IOException {
-        content(charSequence.toString().getBytes(CharsetUtil.UTF_8), AsciiString.of(contentType));
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder content(byte[] buf, String contentType) throws IOException {
-        content(buf, AsciiString.of(contentType));
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder content(ByteBuf body, String contentType) throws IOException {
-        content(body, AsciiString.of(contentType));
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder onHeaders(HttpHeadersListener httpHeadersListener) {
-        this.httpHeadersListener = httpHeadersListener;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder onCookie(CookieListener cookieListener) {
-        this.cookieListener = cookieListener;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder onResponse(HttpResponseListener httpResponseListener) {
-        this.httpResponseListener = httpResponseListener;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder onException(ExceptionListener exceptionListener) {
-        this.exceptionListener = exceptionListener;
-        return this;
-    }
-
-    @Override
-    public HttpRequestBuilder onPushReceived(HttpPushListener httpPushListener) {
-        this.httpPushListener = httpPushListener;
-        return this;
-    }
-
-    @Override
-    public HttpRequest build() {
-        if (uri == null) {
-            throw new IllegalStateException("URL not set");
-        }
-        if (uri.getHost() == null) {
-            throw new IllegalStateException("URL host not set: " + uri);
-        }
-        DefaultHttpRequest httpRequest = createHttpRequest();
-        String scheme = uri.getScheme();
-        StringBuilder sb = new StringBuilder(uri.getHost());
-        int defaultPort = "http".equals(scheme) ? 80 : "https".equals(scheme) ? 443 : -1;
-        if (defaultPort != -1 && uri.getPort() != -1 && defaultPort != uri.getPort()) {
-            sb.append(":").append(uri.getPort());
-        }
-        if (httpVersion.majorVersion() == 2) {
-            httpRequest.headers().set(HttpConversionUtil.ExtensionHeaderNames.SCHEME.text(), scheme);
-        }
-        String host = sb.toString();
-        httpRequest.headers().add(HttpHeaderNames.HOST, host);
-        httpRequest.headers().add(HttpHeaderNames.DATE,
-                DateTimeFormatter.RFC_1123_DATE_TIME.format(ZonedDateTime.ofInstant(Instant.now(), ZoneId.of("GMT"))));
-        if (userAgent != null) {
-            httpRequest.headers().add(HttpHeaderNames.USER_AGENT, userAgent);
-        }
-        if (gzip) {
-            httpRequest.headers().add(HttpHeaderNames.ACCEPT_ENCODING, "gzip");
-        }
-        httpRequest.headers().setAll(headers);
-        if (!httpRequest.headers().contains(HttpHeaderNames.ACCEPT)) {
-            httpRequest.headers().add(HttpHeaderNames.ACCEPT, "*/*");
-        }
-        // RFC 2616 Section 14.10
-        // "An HTTP/1.1 client that does not support persistent connections MUST include the "close" connection
-        // option in every request message."
-        if (httpVersion.majorVersion() == 1 && !httpRequest.headers().contains(HttpHeaderNames.CONNECTION)) {
-            httpRequest.headers().add(HttpHeaderNames.CONNECTION, "close");
-        }
-        // forced removal of headers, at last
-        for (String headerName : removeHeaders) {
-            httpRequest.headers().remove(headerName);
-        }
-        return httpRequest;
-    }
-
-    @Override
-    public HttpRequestContext execute() {
-        return execute(httpClient);
-    }
-
-    @Override
-    public HttpRequestContext execute(HttpClient httpClient) {
-        if (httpClient == null) {
-            return null;
-        }
-        if (httpRequest == null) {
-            httpRequest = build();
-        }
-        if (httpResponseListener == null) {
-            httpResponseListener = httpRequestContext;
-        }
-        httpRequestContext = new HttpRequestContext(uri, httpRequest,
-                httpRequestFuture,
-                streamId,
-                timeout, System.currentTimeMillis(),
-                followRedirect, maxRedirects, new AtomicInteger(0),
-                httpResponseListener,
-                exceptionListener,
-                httpHeadersListener,
-                cookieListener,
-                httpPushListener);
-        // copy cookie(s) to context, will be added later to headers in dispatch (because of auto-cookie setting while redirect)
-        if (!cookies.isEmpty()) {
-            for (Cookie cookie : cookies) {
-                httpRequestContext.addCookie(cookie);
-            }
-        }
-        httpClient.dispatch(httpRequestContext);
-        return httpRequestContext;
-    }
-
-    @Override
-    public <T> CompletableFuture<T> execute(Function<FullHttpResponse, T> supplier) {
-        final CompletableFuture<T> completableFuture = new CompletableFuture<>();
-        onResponse(response -> completableFuture.complete(supplier.apply(response)));
-        onException(completableFuture::completeExceptionally);
-        execute();
-        return completableFuture;
-    }
-
-    private DefaultHttpRequest createHttpRequest() {
-        String requestTarget = toOriginForm();
-        logger.log(Level.FINE, () -> "origin form is " + requestTarget);
-        return content == null ?
-                new DefaultHttpRequest(httpVersion, httpMethod, requestTarget) :
-                new DefaultFullHttpRequest(httpVersion, httpMethod, requestTarget, content);
-    }
-
-    private String toOriginForm() {
-        StringBuilder sb = new StringBuilder();
-        String pathAndQuery = queryStringEncoder.toString();
-        sb.append(pathAndQuery.isEmpty() ? "/" : pathAndQuery);
-        String ref = uri.getFragment();
-        if (ref != null && !ref.isEmpty()) {
-            sb.append('#').append(ref);
-        }
-        return sb.toString();
-    }
-
-    private void addHeader(AsciiString name, Object value) {
-        headers.add(name, value);
-    }
-
-    private void content(CharSequence charSequence, AsciiString contentType) throws IOException {
-        content(charSequence.toString().getBytes(CharsetUtil.UTF_8), contentType);
-    }
-
-    private void content(byte[] buf, AsciiString contentType) throws IOException {
-        content(byteBufAllocator.buffer(buf.length).writeBytes(buf), contentType);
-    }
-
-    private void content(ByteBuf body, AsciiString contentType) throws IOException {
-        this.content = body;
-        addHeader(HttpHeaderNames.CONTENT_LENGTH, (long) body.readableBytes());
-        addHeader(HttpHeaderNames.CONTENT_TYPE, contentType);
-    }
-}

src/main/java/org/xbib/netty/http/client/HttpRequestBuilder.java

@@ -1,97 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.handler.codec.http.FullHttpResponse;
-import io.netty.handler.codec.http.HttpRequest;
-import io.netty.handler.codec.http.cookie.Cookie;
-import org.xbib.netty.http.client.listener.CookieListener;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-import org.xbib.netty.http.client.listener.HttpHeadersListener;
-import org.xbib.netty.http.client.listener.HttpPushListener;
-import org.xbib.netty.http.client.listener.HttpResponseListener;
-
-import java.io.IOException;
-import java.util.concurrent.CompletableFuture;
-import java.util.function.Function;
-
-/**
- */
-public interface HttpRequestBuilder {
-
-    HttpRequestBuilder setHttp1();
-
-    HttpRequestBuilder setHttp2();
-
-    HttpRequestBuilder setVersion(String httpVersion);
-
-    HttpRequestBuilder setURL(String url);
-
-    HttpRequestBuilder path(String path);
-
-    HttpRequestBuilder setHeader(String name, Object value);
-
-    HttpRequestBuilder addHeader(String name, Object value);
-
-    HttpRequestBuilder removeHeader(String name);
-
-    HttpRequestBuilder addParam(String name, String value);
-
-    HttpRequestBuilder addCookie(Cookie cookie);
-
-    HttpRequestBuilder contentType(String contentType);
-
-    HttpRequestBuilder acceptGzip(boolean gzip);
-
-    HttpRequestBuilder setFollowRedirect(boolean followRedirect);
-
-    HttpRequestBuilder setMaxRedirects(int maxRedirects);
-
-    HttpRequestBuilder setUserAgent(String userAgent);
-
-    HttpRequestBuilder content(CharSequence charSequence, String contentType) throws IOException;
-
-    HttpRequestBuilder text(String text) throws IOException;
-
-    HttpRequestBuilder json(String jsonText) throws IOException;
-
-    HttpRequestBuilder xml(String xmlText) throws IOException;
-
-    HttpRequestBuilder content(byte[] buf, String contentType) throws IOException;
-
-    HttpRequestBuilder content(ByteBuf body, String contentType) throws IOException;
-
-    HttpRequestBuilder onHeaders(HttpHeadersListener httpHeadersListener);
-
-    HttpRequestBuilder onCookie(CookieListener cookieListener);
-
-    HttpRequestBuilder onResponse(HttpResponseListener httpResponseListener);
-
-    HttpRequestBuilder onException(ExceptionListener exceptionListener);
-
-    HttpRequestBuilder onPushReceived(HttpPushListener httpPushListener);
-
-    HttpRequestBuilder setTimeout(int timeout);
-
-    HttpRequest build();
-
-    HttpRequestContext execute();
-
-    HttpRequestContext execute(HttpClient httpClient);
-
-    <T> CompletableFuture<T> execute(Function<FullHttpResponse, T> supplier);
-}

src/main/java/org/xbib/netty/http/client/HttpRequestContext.java

@@ -1,310 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.channel.ChannelFuture;
-import io.netty.channel.ChannelPromise;
-import io.netty.handler.codec.http.FullHttpResponse;
-import io.netty.handler.codec.http.HttpRequest;
-import io.netty.handler.codec.http.cookie.Cookie;
-import io.netty.handler.codec.http2.Http2Headers;
-import io.netty.util.internal.PlatformDependent;
-import org.xbib.netty.http.client.listener.CookieListener;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-import org.xbib.netty.http.client.listener.HttpHeadersListener;
-import org.xbib.netty.http.client.listener.HttpPushListener;
-import org.xbib.netty.http.client.listener.HttpResponseListener;
-import org.xbib.netty.http.client.util.LimitedHashSet;
-
-import java.net.URI;
-import java.util.AbstractMap;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import java.util.stream.Collectors;
-
-/**
- *
- */
-public final class HttpRequestContext implements HttpResponseListener, HttpRequestDefaults {
-
-    private static final Logger logger = Logger.getLogger(HttpRequestContext.class.getName());
-
-    private final URI uri;
-
-    private final HttpRequest httpRequest;
-
-    private final HttpRequestFuture<String> httpRequestFuture;
-
-    private final boolean followRedirect;
-
-    private final int maxRedirects;
-
-    private final AtomicInteger redirectCount;
-
-    private final Integer timeout;
-
-    private final Long startTime;
-
-    private final AtomicInteger streamId;
-
-    private final HttpResponseListener httpResponseListener;
-
-    private final ExceptionListener exceptionListener;
-
-    private final HttpHeadersListener httpHeadersListener;
-
-    private final CookieListener cookieListener;
-
-    private final HttpPushListener httpPushListener;
-
-    private final Map<Integer, Map.Entry<ChannelFuture, ChannelPromise>> promiseMap;
-
-    private final Map<Integer, Map.Entry<Http2Headers, ChannelPromise>> pushMap;
-
-    private ChannelPromise settingsPromise;
-
-    private Collection<Cookie> cookies;
-
-    private Map<Integer, FullHttpResponse> httpResponses;
-
-    private Long stopTime;
-
-    HttpRequestContext(URI uri, HttpRequest httpRequest,
-                       HttpRequestFuture<String> httpRequestFuture,
-                       AtomicInteger streamId,
-                       int timeout, Long startTime,
-                       boolean followRedirect, int maxRedirects, AtomicInteger redirectCount,
-                       HttpResponseListener httpResponseListener,
-                       ExceptionListener exceptionListener,
-                       HttpHeadersListener httpHeadersListener,
-                       CookieListener cookieListener,
-                       HttpPushListener httpPushListener) {
-        this.uri = uri;
-        this.httpRequest = httpRequest;
-        this.httpRequestFuture = httpRequestFuture;
-        this.streamId = streamId;
-        this.timeout = timeout;
-        this.startTime = startTime;
-        this.followRedirect = followRedirect;
-        this.maxRedirects = maxRedirects;
-        this.redirectCount = redirectCount;
-        this.httpResponseListener = httpResponseListener;
-        this.exceptionListener = exceptionListener;
-        this.httpHeadersListener = httpHeadersListener;
-        this.cookieListener = cookieListener;
-        this.httpPushListener = httpPushListener;
-        this.promiseMap = PlatformDependent.newConcurrentHashMap();
-        this.pushMap = PlatformDependent.newConcurrentHashMap();
-        this.cookies = new LimitedHashSet<>(10);
-    }
-
-    /**
-     * A follow-up request to a given context with same stream ID (redirect).
-     *
-     */
-    HttpRequestContext(URI uri, HttpRequest httpRequest, HttpRequestContext httpRequestContext) {
-        this.uri = uri;
-        this.httpRequest = httpRequest;
-        this.httpRequestFuture = httpRequestContext.httpRequestFuture;
-        this.streamId = httpRequestContext.streamId;
-        this.timeout = httpRequestContext.timeout;
-        this.startTime = httpRequestContext.startTime;
-        this.followRedirect = httpRequestContext.followRedirect;
-        this.maxRedirects = httpRequestContext.maxRedirects;
-        this.redirectCount = httpRequestContext.redirectCount;
-        this.httpResponseListener = httpRequestContext.httpResponseListener;
-        this.exceptionListener = httpRequestContext.exceptionListener;
-        this.httpHeadersListener = httpRequestContext.httpHeadersListener;
-        this.cookieListener = httpRequestContext.cookieListener;
-        this.httpPushListener = httpRequestContext.httpPushListener;
-        this.promiseMap = httpRequestContext.promiseMap;
-        this.pushMap = httpRequestContext.pushMap;
-        this.cookies = httpRequestContext.cookies;
-    }
-
-    public URI getURI() {
-        return uri;
-    }
-
-    public HttpRequest getHttpRequest() {
-        return httpRequest;
-    }
-
-    public HttpResponseListener getHttpResponseListener() {
-        return httpResponseListener;
-    }
-
-    public ExceptionListener getExceptionListener() {
-        return exceptionListener;
-    }
-
-    public HttpHeadersListener getHttpHeadersListener() {
-        return httpHeadersListener;
-    }
-
-    public CookieListener getCookieListener() {
-        return cookieListener;
-    }
-
-    public HttpPushListener getHttpPushListener() {
-        return httpPushListener;
-    }
-
-    public void setSettingsPromise(ChannelPromise settingsPromise) {
-        this.settingsPromise = settingsPromise;
-    }
-
-    public ChannelPromise getSettingsPromise() {
-        return settingsPromise;
-    }
-
-    public  Map<Integer, Map.Entry<ChannelFuture, ChannelPromise>> getStreamIdPromiseMap() {
-        return promiseMap;
-    }
-
-    public void putStreamID(Integer streamId, ChannelFuture channelFuture, ChannelPromise channelPromise) {
-        logger.log(Level.FINE, () -> "put stream ID " + streamId + " future = " + channelFuture);
-        promiseMap.put(streamId, new AbstractMap.SimpleEntry<>(channelFuture, channelPromise));
-    }
-
-    public Map<Integer, Map.Entry<Http2Headers, ChannelPromise>> getPushMap() {
-        return pushMap;
-    }
-
-    public void receiveStreamID(Integer streamId, Http2Headers headers, ChannelPromise channelPromise) {
-        logger.log(Level.FINE, () -> "receive stream ID " + streamId + " " + headers);
-        pushMap.put(streamId, new AbstractMap.SimpleEntry<>(headers, channelPromise));
-    }
-
-    public boolean isFinished() {
-        return promiseMap.isEmpty() && pushMap.isEmpty();
-    }
-
-    public void addCookie(Cookie cookie) {
-        cookies.add(cookie);
-    }
-
-    public Collection<Cookie> getCookies() {
-        return cookies;
-    }
-
-    public List<Cookie> matchCookies() {
-        return cookies.stream()
-                .filter(this::matchCookie)
-                .collect(Collectors.toList());
-    }
-
-    private boolean matchCookie(Cookie cookie) {
-        boolean domainMatch = cookie.domain() == null || uri.getHost().endsWith(cookie.domain());
-        if (!domainMatch) {
-            return false;
-        }
-        boolean pathMatch = "/".equals(cookie.path()) || uri.getPath().startsWith(cookie.path());
-        if (!pathMatch) {
-            return false;
-        }
-        boolean secure = "https".equals(uri.getScheme());
-        return (secure && cookie.isSecure()) || (!secure && !cookie.isSecure());
-    }
-
-    public int getTimeout() {
-        return timeout;
-    }
-
-    public long getStartTime() {
-        return startTime;
-    }
-
-    public boolean isSucceeded() {
-        return httpRequestFuture.isSucceeded();
-    }
-
-    public boolean isFailed() {
-        return httpRequestFuture.isFailed();
-    }
-
-    public boolean isFollowRedirect() {
-        return followRedirect;
-    }
-
-    public int getMaxRedirects() {
-        return maxRedirects;
-    }
-
-    public AtomicInteger getRedirectCount() {
-        return redirectCount;
-    }
-
-    public boolean isExpired() {
-        return timeout != null && System.currentTimeMillis() > startTime + timeout;
-    }
-
-    public long took() {
-        return stopTime != null ? stopTime - startTime : -1L;
-    }
-
-    public long remaining() {
-        return (startTime + timeout) - System.currentTimeMillis();
-    }
-
-    public AtomicInteger getStreamId() {
-        return streamId;
-    }
-
-    public HttpRequestContext get() throws InterruptedException, TimeoutException, ExecutionException {
-        return get(DEFAULT_TIMEOUT_MILLIS, TimeUnit.SECONDS);
-    }
-
-    public HttpRequestContext get(long timeout, TimeUnit timeUnit)
-            throws InterruptedException, TimeoutException, ExecutionException {
-        httpRequestFuture.get(timeout, timeUnit);
-        stopTime = System.currentTimeMillis();
-        return this;
-    }
-
-    public void success(String reason) {
-        logger.log(Level.FINE, () -> "success because of " + reason);
-        httpRequestFuture.success(reason);
-    }
-
-    public void fail(String reason) {
-        fail(new IllegalStateException(reason));
-    }
-
-    public void fail(Exception exception) {
-        logger.log(Level.FINE, () -> "failed because of " + exception.getMessage());
-        if (exceptionListener != null) {
-            exceptionListener.onException(exception);
-        }
-        httpRequestFuture.fail(exception);
-    }
-
-    @Override
-    public void onResponse(FullHttpResponse fullHttpResponse) {
-        this.httpResponses.put(streamId.get(), fullHttpResponse);
-    }
-
-    public Map<Integer, FullHttpResponse> getHttpResponses() {
-        return httpResponses;
-    }
-}

src/main/java/org/xbib/netty/http/client/HttpRequestDefaults.java

@@ -1,42 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client;
-
-import io.netty.handler.codec.http.HttpVersion;
-import org.xbib.netty.http.client.internal.HttpClientUserAgent;
-
-import java.net.URI;
-
-/**
- */
-public interface HttpRequestDefaults {
-
-    HttpVersion DEFAULT_HTTP_VERSION = HttpVersion.HTTP_1_1;
-
-    String DEFAULT_USER_AGENT = HttpClientUserAgent.getUserAgent();
-
-    URI DEFAULT_URI = URI.create("http://localhost");
-
-    boolean DEFAULT_GZIP = true;
-
-    boolean DEFAULT_FOLLOW_REDIRECT = true;
-
-    int DEFAULT_TIMEOUT_MILLIS = 5000;
-
-    int DEFAULT_MAX_REDIRECT = 10;
-
-    HttpRequestFuture<String> DEFAULT_FUTURE = new HttpRequestFuture<>();
-}

src/main/java/org/xbib/netty/http/client/HttpRequestFuture.java

@@ -1,20 +0,0 @@
-package org.xbib.netty.http.client;
-
-import org.xbib.netty.http.client.util.AbstractFuture;
-
-/**
- * A HTTP request future.
- *
- * @param <V> the response type parameter.
- */
-public class HttpRequestFuture<V> extends AbstractFuture<V> {
-
-    public void success(V v) {
-        set(v);
-    }
-
-    public void fail(Exception e) {
-        setException(e);
-    }
-
-}

src/main/java/org/xbib/netty/http/client/Request.java

@@ -0,0 +1,216 @@
+package org.xbib.netty.http.client;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.handler.codec.http.HttpHeaders;
+import io.netty.handler.codec.http.HttpMethod;
+import io.netty.handler.codec.http.HttpVersion;
+import io.netty.handler.codec.http.cookie.Cookie;
+
+import org.xbib.net.URL;
+import org.xbib.netty.http.client.listener.CookieListener;
+import org.xbib.netty.http.client.listener.ExceptionListener;
+import org.xbib.netty.http.client.listener.HttpHeadersListener;
+import org.xbib.netty.http.client.listener.HttpPushListener;
+import org.xbib.netty.http.client.listener.HttpResponseListener;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Collection;
+
+/**
+ *
+ */
+public class Request {
+
+    private final URL base;
+
+    private final HttpVersion httpVersion;
+
+    private final HttpMethod httpMethod;
+
+    private final HttpHeaders headers;
+
+    private final Collection<Cookie> cookies;
+
+    private final String uri;
+
+    private final ByteBuf content;
+
+    private final int timeout;
+
+    private final boolean followRedirect;
+
+    private final int maxRedirects;
+
+    private int redirectCount;
+
+    private HttpResponseListener responseListener;
+
+    private ExceptionListener exceptionListener;
+
+    private HttpHeadersListener headersListener;
+
+    private CookieListener cookieListener;
+
+    private HttpPushListener pushListener;
+
+    Request(URL url, HttpVersion httpVersion, HttpMethod httpMethod,
+            HttpHeaders headers, Collection<Cookie> cookies,
+            String uri, ByteBuf content,
+            int timeout, boolean followRedirect, int maxRedirect, int redirectCount) {
+        this.base = url;
+        this.httpVersion = httpVersion;
+        this.httpMethod = httpMethod;
+        this.headers = headers;
+        this.cookies = cookies;
+        this.uri = uri;
+        this.content = content;
+        this.timeout = timeout;
+        this.followRedirect = followRedirect;
+        this.maxRedirects = maxRedirect;
+        this.redirectCount = redirectCount;
+    }
+
+    public URL base() {
+        return base;
+    }
+
+    public HttpVersion httpVersion() {
+        return httpVersion;
+    }
+
+    public HttpMethod httpMethod() {
+        return httpMethod;
+    }
+
+    public String relativeUri() {
+        return uri;
+    }
+
+    public HttpHeaders headers() {
+        return headers;
+    }
+
+    public Collection<Cookie> cookies() {
+        return cookies;
+    }
+
+    public ByteBuf content() {
+        return content;
+    }
+
+    public int getTimeout() {
+        return timeout;
+    }
+
+    public boolean isFollowRedirect() {
+        return followRedirect;
+    }
+
+    public boolean checkRedirect() {
+        if (!followRedirect) {
+            return false;
+        }
+        if (redirectCount >= maxRedirects) {
+            return false;
+        }
+        redirectCount = redirectCount + 1;
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("base=").append(base).append(',')
+                .append("version=").append(httpVersion).append(',')
+                .append("method=").append(httpMethod).append(',')
+                .append("relativeUri=").append(uri).append(',')
+                .append("headers=").append(headers).append(',')
+                .append("content=").append(content != null ? content.copy(0,16).toString(StandardCharsets.UTF_8) : "");
+        return sb.toString();
+    }
+
+    public Request setHeadersListener(HttpHeadersListener httpHeadersListener) {
+        this.headersListener = httpHeadersListener;
+        return this;
+    }
+
+    public HttpHeadersListener getHeadersListener() {
+        return headersListener;
+    }
+
+    public Request setCookieListener(CookieListener cookieListener) {
+        this.cookieListener = cookieListener;
+        return this;
+    }
+
+    public CookieListener getCookieListener() {
+        return cookieListener;
+    }
+
+    public Request setResponseListener(HttpResponseListener httpResponseListener) {
+        this.responseListener = httpResponseListener;
+        return this;
+    }
+
+    public HttpResponseListener getResponseListener() {
+        return responseListener;
+    }
+
+    public Request setExceptionListener(ExceptionListener exceptionListener) {
+        this.exceptionListener = exceptionListener;
+        return this;
+    }
+
+    public ExceptionListener getExceptionListener() {
+        return exceptionListener;
+    }
+
+    public Request setPushListener(HttpPushListener httpPushListener) {
+        this.pushListener = httpPushListener;
+        return this;
+    }
+
+    public HttpPushListener getPushListener() {
+        return pushListener;
+    }
+
+    public static RequestBuilder get() {
+        return builder(HttpMethod.GET);
+    }
+
+    public static RequestBuilder put() {
+        return builder(HttpMethod.PUT);
+    }
+
+    public static RequestBuilder post() {
+        return builder(HttpMethod.POST);
+    }
+
+    public static RequestBuilder delete() {
+        return builder(HttpMethod.DELETE);
+    }
+
+    public static RequestBuilder head() {
+        return builder(HttpMethod.HEAD);
+    }
+
+    public static RequestBuilder patch() {
+        return builder(HttpMethod.PATCH);
+    }
+
+    public static RequestBuilder trace() {
+        return builder(HttpMethod.TRACE);
+    }
+
+    public static RequestBuilder options() {
+        return builder(HttpMethod.OPTIONS);
+    }
+
+    public static RequestBuilder connect() {
+        return builder(HttpMethod.CONNECT);
+    }
+
+    public static RequestBuilder builder(HttpMethod httpMethod) {
+        return new RequestBuilder().setMethod(httpMethod);
+    }
+}

src/main/java/org/xbib/netty/http/client/RequestBuilder.java

@@ -0,0 +1,329 @@
+package org.xbib.netty.http.client;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.PooledByteBufAllocator;
+import io.netty.handler.codec.http.DefaultHttpHeaders;
+import io.netty.handler.codec.http.HttpHeaderNames;
+import io.netty.handler.codec.http.HttpHeaderValues;
+import io.netty.handler.codec.http.HttpHeaders;
+import io.netty.handler.codec.http.HttpMethod;
+import io.netty.handler.codec.http.HttpVersion;
+import io.netty.handler.codec.http.QueryStringDecoder;
+import io.netty.handler.codec.http.QueryStringEncoder;
+import io.netty.handler.codec.http.cookie.Cookie;
+import io.netty.handler.codec.http2.HttpConversionUtil;
+import io.netty.util.AsciiString;
+import org.xbib.net.URL;
+import org.xbib.net.URLSyntaxException;
+
+import java.net.URI;
+import java.nio.charset.StandardCharsets;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+
+public class RequestBuilder {
+
+    private static final HttpMethod DEFAULT_METHOD = HttpMethod.GET;
+
+    private static final HttpVersion DEFAULT_HTTP_VERSION = HttpVersion.HTTP_1_1;
+
+    private static final String DEFAULT_USER_AGENT = UserAgent.getUserAgent();
+
+    private static final URL DEFAULT_URL = URL.from("http://localhost");
+
+    private static final boolean DEFAULT_GZIP = true;
+
+    private static final boolean DEFAULT_KEEPALIVE = true;
+
+    private static final boolean DEFAULT_FOLLOW_REDIRECT = true;
+
+    private static final int DEFAULT_TIMEOUT_MILLIS = 5000;
+
+    private static final int DEFAULT_MAX_REDIRECT = 10;
+
+    private static final HttpVersion HTTP_2_0 = HttpVersion.valueOf("HTTP/2.0");
+
+    private final List<String> removeHeaders;
+
+    private final Collection<Cookie> cookies;
+
+    private HttpMethod httpMethod;
+
+    private HttpHeaders headers;
+
+    private HttpVersion httpVersion;
+
+    private String userAgent;
+
+    private boolean keepalive;
+
+    private boolean gzip;
+
+    private URL url;
+
+    private QueryStringEncoder queryStringEncoder;
+
+    private ByteBuf content;
+
+    private int timeout;
+
+    private boolean followRedirect;
+
+    private int maxRedirects;
+
+    RequestBuilder() {
+        httpMethod = DEFAULT_METHOD;
+        httpVersion = DEFAULT_HTTP_VERSION;
+        userAgent = DEFAULT_USER_AGENT;
+        gzip = DEFAULT_GZIP;
+        keepalive = DEFAULT_KEEPALIVE;
+        url = DEFAULT_URL;
+        timeout = DEFAULT_TIMEOUT_MILLIS;
+        followRedirect = DEFAULT_FOLLOW_REDIRECT;
+        maxRedirects = DEFAULT_MAX_REDIRECT;
+        headers = new DefaultHttpHeaders();
+        removeHeaders = new ArrayList<>();
+        cookies = new HashSet<>();
+    }
+
+    public RequestBuilder setMethod(HttpMethod httpMethod) {
+        this.httpMethod = httpMethod;
+        return this;
+    }
+
+    public RequestBuilder setHttp1() {
+        this.httpVersion = HttpVersion.HTTP_1_1;
+        return this;
+    }
+
+    public RequestBuilder setHttp2() {
+        this.httpVersion = HTTP_2_0;
+        return this;
+    }
+
+    public RequestBuilder setVersion(HttpVersion httpVersion) {
+        this.httpVersion = httpVersion;
+        return this;
+    }
+
+    public RequestBuilder setVersion(String httpVersion) {
+        this.httpVersion = HttpVersion.valueOf(httpVersion);
+        return this;
+    }
+
+    public RequestBuilder setTimeout(int timeout) {
+        this.timeout = timeout;
+        return this;
+    }
+
+    public RequestBuilder setURL(String url) {
+        return setURL(URL.from(url));
+    }
+
+    public RequestBuilder setURL(URL url) {
+        this.url = url;
+        QueryStringDecoder queryStringDecoder = new QueryStringDecoder(URI.create(url.toString()), StandardCharsets.UTF_8);
+        this.queryStringEncoder = new QueryStringEncoder(queryStringDecoder.path());
+        for (Map.Entry<String, List<String>> entry : queryStringDecoder.parameters().entrySet()) {
+            for (String value : entry.getValue()) {
+                queryStringEncoder.addParam(entry.getKey(), value);
+            }
+        }
+        return this;
+    }
+
+    public RequestBuilder path(String path) {
+        if (this.url != null) {
+            try {
+                setURL(URL.base(url).resolve(path).toString());
+            } catch (URLSyntaxException e) {
+                throw new IllegalArgumentException(e);
+            }
+        } else {
+            setURL(path);
+        }
+        return this;
+    }
+
+    public RequestBuilder setHeaders(HttpHeaders headers) {
+        this.headers = headers;
+        return this;
+    }
+
+    public RequestBuilder addHeader(String name, Object value) {
+        this.headers.add(name, value);
+        return this;
+    }
+
+    public RequestBuilder setHeader(String name, Object value) {
+        this.headers.set(name, value);
+        return this;
+    }
+
+    public RequestBuilder removeHeader(String name) {
+        removeHeaders.add(name);
+        return this;
+    }
+
+    public RequestBuilder addParam(String name, String value) {
+        if (queryStringEncoder != null) {
+            queryStringEncoder.addParam(name, value);
+        }
+        return this;
+    }
+
+    public RequestBuilder addCookie(Cookie cookie) {
+        cookies.add(cookie);
+        return this;
+    }
+
+    public RequestBuilder contentType(String contentType) {
+        addHeader(HttpHeaderNames.CONTENT_TYPE, contentType);
+        return this;
+    }
+
+    public RequestBuilder acceptGzip(boolean gzip) {
+        this.gzip = gzip;
+        return this;
+    }
+
+    public RequestBuilder keepAlive(boolean keepalive) {
+        this.keepalive = keepalive;
+        return this;
+    }
+
+    public RequestBuilder setFollowRedirect(boolean followRedirect) {
+        this.followRedirect = followRedirect;
+        return this;
+    }
+
+    public RequestBuilder setMaxRedirects(int maxRedirects) {
+        this.maxRedirects = maxRedirects;
+        return this;
+    }
+
+    public RequestBuilder setUserAgent(String userAgent) {
+        this.userAgent = userAgent;
+        return this;
+    }
+
+    public RequestBuilder setContent(ByteBuf byteBuf) {
+        this.content = byteBuf;
+        return this;
+    }
+
+    public RequestBuilder text(String text) {
+        content(text, HttpHeaderValues.TEXT_PLAIN);
+        return this;
+    }
+
+    public RequestBuilder json(String json) {
+        content(json, HttpHeaderValues.APPLICATION_JSON);
+        return this;
+    }
+
+    public RequestBuilder xml(String xml) {
+        content(xml, "application/xml");
+        return this;
+    }
+
+    public RequestBuilder content(CharSequence charSequence, String contentType) {
+        content(charSequence.toString().getBytes(StandardCharsets.UTF_8), AsciiString.of(contentType));
+        return this;
+    }
+
+    public RequestBuilder content(byte[] buf, String contentType) {
+        content(buf, AsciiString.of(contentType));
+        return this;
+    }
+
+    public RequestBuilder content(ByteBuf body, String contentType)  {
+        content(body, AsciiString.of(contentType));
+        return this;
+    }
+
+    public Request build() {
+        if (url == null) {
+            throw new IllegalStateException("URL not set");
+        }
+        if (url.getHost() == null) {
+            throw new IllegalStateException("URL host not set: " + url);
+        }
+        DefaultHttpHeaders validatedHeaders = new DefaultHttpHeaders(true);
+        validatedHeaders.set(headers);
+        String scheme = url.getScheme();
+        if (httpVersion.majorVersion() == 2) {
+            validatedHeaders.set(HttpConversionUtil.ExtensionHeaderNames.SCHEME.text(), scheme);
+        }
+        validatedHeaders.set(HttpHeaderNames.HOST, url.getHostInfo());
+        validatedHeaders.set(HttpHeaderNames.DATE, DateTimeFormatter.RFC_1123_DATE_TIME.format(ZonedDateTime.now(ZoneOffset.UTC)));
+        if (userAgent != null) {
+            validatedHeaders.set(HttpHeaderNames.USER_AGENT, userAgent);
+        }
+        if (gzip) {
+            validatedHeaders.set(HttpHeaderNames.ACCEPT_ENCODING, "gzip");
+        }
+        int length = content != null ? content.capacity() : 0;
+        if (!validatedHeaders.contains(HttpHeaderNames.CONTENT_LENGTH) && !validatedHeaders.contains(HttpHeaderNames.TRANSFER_ENCODING)) {
+            if (length < 0) {
+                validatedHeaders.set(HttpHeaderNames.TRANSFER_ENCODING, "chunked");
+            } else {
+                validatedHeaders.set(HttpHeaderNames.CONTENT_LENGTH, Long.toString(length));
+            }
+        }
+        if (!validatedHeaders.contains(HttpHeaderNames.ACCEPT)) {
+            validatedHeaders.set(HttpHeaderNames.ACCEPT, "*/*");
+        }
+        // RFC 2616 Section 14.10
+        // "An HTTP/1.1 client that does not support persistent connections MUST include the "close" connection
+        // option in every request message."
+        if (httpVersion.majorVersion() == 1 && !keepalive) {
+            validatedHeaders.set(HttpHeaderNames.CONNECTION, "close");
+        }
+        // at last, forced removal of unwanted headers
+        for (String headerName : removeHeaders) {
+            validatedHeaders.remove(headerName);
+        }
+        // create origin form from query string encoder
+        String uri = toOriginForm();
+        return new Request(url, httpVersion, httpMethod, validatedHeaders, cookies, uri, content,
+                timeout, followRedirect, maxRedirects, 0);
+    }
+
+    private String toOriginForm() {
+        StringBuilder sb = new StringBuilder();
+        String pathAndQuery = queryStringEncoder.toString();
+        sb.append(pathAndQuery.isEmpty() ? "/" : pathAndQuery);
+        String ref = url.getFragment();
+        if (ref != null && !ref.isEmpty()) {
+            sb.append('#').append(ref);
+        }
+        return sb.toString();
+    }
+
+    private void addHeader(AsciiString name, Object value) {
+        if (!headers.contains(name)) {
+            headers.add(name, value);
+        }
+    }
+
+    private void content(CharSequence charSequence, AsciiString contentType)  {
+        content(charSequence.toString().getBytes(StandardCharsets.UTF_8), contentType);
+    }
+
+    private void content(byte[] buf, AsciiString contentType) {
+        content(PooledByteBufAllocator.DEFAULT.buffer(buf.length).writeBytes(buf), contentType);
+    }
+
+    private void content(ByteBuf body, AsciiString contentType) {
+        this.content = body;
+        addHeader(HttpHeaderNames.CONTENT_LENGTH, (long) body.readableBytes());
+        addHeader(HttpHeaderNames.CONTENT_TYPE, contentType);
+    }
+}

src/main/java/org/xbib/netty/http/client/UserAgent.java

@@ -1,36 +1,21 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.internal;
+package org.xbib.netty.http.client;
 
 import io.netty.bootstrap.Bootstrap;
-import org.xbib.netty.http.client.HttpClient;
 
 import java.util.Optional;
 
 /**
+ * HTTP client user agent.
  */
-public final class HttpClientUserAgent {
+public final class UserAgent {
 
     /**
-     * The default valut for {@code User-Agent}.
+     * The default value for {@code User-Agent}.
      */
     private static final String USER_AGENT = String.format("XbibHttpClient/%s (Java/%s/%s) (Netty/%s)",
             httpClientVersion(), javaVendor(), javaVersion(), nettyVersion());
 
-    private HttpClientUserAgent() {
+    private UserAgent() {
     }
 
     public static String getUserAgent() {
@@ -38,7 +23,7 @@ public final class HttpClientUserAgent {
     }
 
     private static String httpClientVersion() {
-        return Optional.ofNullable(HttpClient.class.getPackage().getImplementationVersion())
+        return Optional.ofNullable(UserAgent.class.getPackage().getImplementationVersion())
                 .orElse("unknown");
     }
 

src/main/java/org/xbib/netty/http/client/handler/Http2EventHandler.java

@@ -1,410 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.handler;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufAllocator;
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelFuture;
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.ChannelPromise;
-import io.netty.handler.codec.http.FullHttpMessage;
-import io.netty.handler.codec.http.FullHttpRequest;
-import io.netty.handler.codec.http.HttpRequest;
-import io.netty.handler.codec.http.HttpUtil;
-import io.netty.handler.codec.http2.DefaultHttp2Headers;
-import io.netty.handler.codec.http2.Http2CodecUtil;
-import io.netty.handler.codec.http2.Http2Connection;
-import io.netty.handler.codec.http2.Http2ConnectionHandler;
-import io.netty.handler.codec.http2.Http2Error;
-import io.netty.handler.codec.http2.Http2EventAdapter;
-import io.netty.handler.codec.http2.Http2Exception;
-import io.netty.handler.codec.http2.Http2Headers;
-import io.netty.handler.codec.http2.Http2LocalFlowController;
-import io.netty.handler.codec.http2.Http2Settings;
-import io.netty.handler.codec.http2.Http2Stream;
-import io.netty.handler.codec.http2.HttpConversionUtil;
-import org.xbib.netty.http.client.HttpClientChannelContextDefaults;
-import org.xbib.netty.http.client.HttpRequestContext;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- * A HTTP/2 event adapter for a client.
- * This event adapter expects {@link Http2Settings} are sent from the server before the
- * {@link HttpRequest} is submitted by sending a header frame, and, if a body exists, a
- * data frame.
- * The push promises of a server response are acknowledged and the headers of a push promise
- * are stored in the {@link HttpRequestContext} for being received later.
- */
-public class Http2EventHandler extends Http2EventAdapter {
-
-    private static final Logger logger = Logger.getLogger(Http2EventHandler.class.getName());
-
-    private final Http2Connection connection;
-
-    private final Http2Connection.PropertyKey messageKey;
-
-    private final int maxContentLength;
-
-    private final boolean validateHttpHeaders;
-
-    /**
-     * Constructor for {@link Http2EventHandler}.
-     * @param connection the HTTP/2 connection
-     * @param maxContentLength the maximum content length
-     * @param validateHeaders true if headers should be validated
-     */
-    public Http2EventHandler(Http2Connection connection, int maxContentLength, boolean validateHeaders) {
-        this.connection = connection;
-        this.maxContentLength = maxContentLength;
-        this.validateHttpHeaders = validateHeaders;
-        this.messageKey = connection.newKey();
-    }
-
-    /**
-     * Handles an inbound {@code SETTINGS} frame.
-     * After frame is received, the request is sent.
-     *
-     * @param ctx the context from the handler where the frame was read.
-     * @param settings the settings received from the remote endpoint.
-     */
-    @Override
-    public void onSettingsRead(ChannelHandlerContext ctx, Http2Settings settings)
-            throws Http2Exception {
-        logger.log(Level.FINEST, () -> "settings received " + settings);
-        Channel channel = ctx.channel();
-        final HttpRequestContext httpRequestContext =
-                channel.attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        final HttpRequest httpRequest = httpRequestContext.getHttpRequest();
-        ChannelPromise channelPromise = channel.newPromise();
-        Http2Headers headers = toHttp2Headers(httpRequestContext);
-        logger.log(Level.FINEST, () -> "write request " + httpRequest + " headers = " + headers);
-        boolean hasBody = httpRequestContext.getHttpRequest() instanceof FullHttpRequest;
-        Http2ConnectionHandler handler = ctx.pipeline().get(Http2ConnectionHandler.class);
-        Integer streamId = httpRequestContext.getStreamId().get();
-        ChannelFuture channelFuture = handler.encoder().writeHeaders(ctx, streamId,
-                headers, 0, !hasBody, channelPromise);
-        httpRequestContext.putStreamID(streamId, channelFuture, channelPromise);
-        if (hasBody) {
-            FullHttpRequest fullHttpRequest = (FullHttpRequest) httpRequestContext.getHttpRequest();
-            ChannelPromise contentChannelPromise = channel.newPromise();
-            streamId = httpRequestContext.getStreamId().get();
-            ChannelFuture contentChannelFuture = handler.encoder().writeData(ctx, streamId,
-                    fullHttpRequest.content(), 0, true, contentChannelPromise);
-            httpRequestContext.putStreamID(streamId, contentChannelFuture, contentChannelPromise);
-            channel.flush();
-        }
-        httpRequestContext.getSettingsPromise().setSuccess();
-    }
-
-    /**
-     * Handles an inbound {@code HEADERS} frame.
-     * <p>
-     * Only one of the following methods will be called for each {@code HEADERS} frame sequence.
-     * One will be called when the {@code END_HEADERS} flag has been received.
-     * <ul>
-     * <li>{@link #onHeadersRead(ChannelHandlerContext, int, Http2Headers, int, boolean)}</li>
-     * <li>{@link #onHeadersRead(ChannelHandlerContext, int, Http2Headers, int, short, boolean, int, boolean)}</li>
-     * <li>{@link #onPushPromiseRead(ChannelHandlerContext, int, int, Http2Headers, int)}</li>
-     * </ul>
-     * <p>
-     * To say it another way; the {@link Http2Headers} will contain all of the headers
-     * for the current message exchange step (additional queuing is not necessary).
-     *
-     * @param ctx the context from the handler where the frame was read.
-     * @param streamId the subject stream for the frame.
-     * @param headers the received headers.
-     * @param padding additional bytes that should be added to obscure the true content size. Must be between 0 and
-     *                256 (inclusive).
-     * @param endOfStream Indicates whether this is the last frame to be sent from the remote endpoint
-     *            for this stream.
-     */
-    @Override
-    public void onHeadersRead(ChannelHandlerContext ctx, int streamId, Http2Headers headers, int padding,
-                              boolean endOfStream) throws Http2Exception {
-        logger.log(Level.FINEST, () -> "headers received " + headers);
-        Http2Stream stream = connection.stream(streamId);
-        FullHttpMessage msg = beginHeader(ctx, stream, headers, true, true);
-        if (msg != null) {
-            endHeader(ctx, stream, msg, endOfStream);
-        }
-    }
-
-    /**
-     * Handles an inbound {@code HEADERS} frame with priority information specified.
-     * Only called if {@code END_HEADERS} encountered.
-     * <p>
-     * Only one of the following methods will be called for each {@code HEADERS} frame sequence.
-     * One will be called when the {@code END_HEADERS} flag has been received.
-     * <ul>
-     * <li>{@link #onHeadersRead(ChannelHandlerContext, int, Http2Headers, int, boolean)}</li>
-     * <li>{@link #onHeadersRead(ChannelHandlerContext, int, Http2Headers, int, short, boolean, int, boolean)}</li>
-     * <li>{@link #onPushPromiseRead(ChannelHandlerContext, int, int, Http2Headers, int)}</li>
-     * </ul>
-     * <p>
-     * To say it another way; the {@link Http2Headers} will contain all of the headers
-     * for the current message exchange step (additional queuing is not necessary).
-     *
-     * @param ctx the context from the handler where the frame was read.
-     * @param streamId the subject stream for the frame.
-     * @param headers the received headers.
-     * @param streamDependency the stream on which this stream depends, or 0 if dependent on the
-     *            connection.
-     * @param weight the new weight for the stream.
-     * @param exclusive whether or not the stream should be the exclusive dependent of its parent.
-     * @param padding additional bytes that should be added to obscure the true content size. Must be between 0 and
-     *                256 (inclusive).
-     * @param endOfStream Indicates whether this is the last frame to be sent from the remote endpoint
-     *            for this stream.
-     */
-    @Override
-    public void onHeadersRead(ChannelHandlerContext ctx, int streamId, Http2Headers headers, int streamDependency,
-                              short weight, boolean exclusive, int padding, boolean endOfStream) throws Http2Exception {
-        logger.log(Level.FINEST, () -> "headers received " + headers);
-        Http2Stream stream = connection.stream(streamId);
-        FullHttpMessage msg = beginHeader(ctx, stream, headers, true, true);
-        if (msg != null) {
-            if (streamDependency != Http2CodecUtil.CONNECTION_STREAM_ID) {
-                msg.headers().setInt(HttpConversionUtil.ExtensionHeaderNames.STREAM_DEPENDENCY_ID.text(),
-                        streamDependency);
-            }
-            msg.headers().setShort(HttpConversionUtil.ExtensionHeaderNames.STREAM_WEIGHT.text(), weight);
-            endHeader(ctx, stream, msg, endOfStream);
-        }
-    }
-
-    /**
-     * Handles an inbound {@code DATA} frame.
-     *
-     * @param ctx the context from the handler where the frame was read.
-     * @param streamId the subject stream for the frame.
-     * @param data payload buffer for the frame. This buffer will be released by the codec.
-     * @param padding additional bytes that should be added to obscure the true content size. Must be between 0 and
-     *                256 (inclusive).
-     * @param endOfStream Indicates whether this is the last frame to be sent from the remote endpoint for this stream.
-     * @return the number of bytes that have been processed by the application. The returned bytes are used by the
-     * inbound flow controller to determine the appropriate time to expand the inbound flow control window (i.e. send
-     * {@code WINDOW_UPDATE}). Returning a value equal to the length of {@code data} + {@code padding} will effectively
-     * opt-out of application-level flow control for this frame. Returning a value less than the length of {@code data}
-     * + {@code padding} will defer the returning of the processed bytes, which the application must later return via
-     * {@link Http2LocalFlowController#consumeBytes(Http2Stream, int)}. The returned value must
-     * be >= {@code 0} and <= {@code data.readableBytes()} + {@code padding}.
-     */
-    @Override
-    public int onDataRead(ChannelHandlerContext ctx, int streamId, ByteBuf data, int padding, boolean endOfStream)
-            throws Http2Exception {
-        logger.log(Level.FINEST, () -> "data received " + data);
-        Http2Stream stream = connection.stream(streamId);
-        FullHttpMessage msg = getMessage(stream);
-        if (msg == null) {
-            throw Http2Exception.connectionError(Http2Error.PROTOCOL_ERROR,
-                    "data frame received for unknown stream id %d", streamId);
-        }
-        ByteBuf content = msg.content();
-        final int dataReadableBytes = data.readableBytes();
-        if (content.readableBytes() > maxContentLength - dataReadableBytes) {
-            throw Http2Exception.connectionError(Http2Error.INTERNAL_ERROR,
-                    "content length exceeded maximum of %d for stream id %d", maxContentLength, streamId);
-        }
-        content.writeBytes(data, data.readerIndex(), dataReadableBytes);
-        if (endOfStream) {
-            fireChannelRead(ctx, msg, false, stream);
-        }
-        return dataReadableBytes + padding;
-    }
-
-    /**
-     * Handles an inbound {@code RST_STREAM} frame. Deletes push stream id if present.
-     *
-     * @param ctx the context from the handler where the frame was read.
-     * @param streamId the stream that is terminating.
-     * @param errorCode the error code identifying the type of failure.
-     */
-    @Override
-    public void onRstStreamRead(ChannelHandlerContext ctx, int streamId, long errorCode) throws Http2Exception {
-        logger.log(Level.FINEST, () -> "rst stream received: error code = " + errorCode);
-        Http2Stream stream = connection.stream(streamId);
-        FullHttpMessage msg = getMessage(stream);
-        if (msg != null) {
-            removeMessage(stream, true);
-        }
-        final HttpRequestContext httpRequestContext =
-                ctx.channel().attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        httpRequestContext.getPushMap().remove(streamId);
-    }
-
-    /**
-     * Handles an inbound {@code PUSH_PROMISE} frame. Only called if {@code END_HEADERS} encountered.
-     * <p>
-     * Promised requests MUST be authoritative, cacheable, and safe.
-     * See <a href="https://tools.ietf.org/html/draft-ietf-httpbis-http2-17#section-8.2">[RFC http2], Section 8.2</a>.
-     * <p>
-     * Only one of the following methods will be called for each {@code HEADERS} frame sequence.
-     * One will be called when the {@code END_HEADERS} flag has been received.
-     * <ul>
-     * <li>{@link #onHeadersRead(ChannelHandlerContext, int, Http2Headers, int, boolean)}</li>
-     * <li>{@link #onHeadersRead(ChannelHandlerContext, int, Http2Headers, int, short, boolean, int, boolean)}</li>
-     * <li>{@link #onPushPromiseRead(ChannelHandlerContext, int, int, Http2Headers, int)}</li>
-     * </ul>
-     * <p>
-     * To say it another way; the {@link Http2Headers} will contain all of the headers
-     * for the current message exchange step (additional queuing is not necessary).
-     *
-     * @param ctx the context from the handler where the frame was read.
-     * @param streamId the stream the frame was sent on.
-     * @param promisedStreamId the ID of the promised stream.
-     * @param headers the received headers.
-     * @param padding additional bytes that should be added to obscure the true content size. Must be between 0 and
-     *                256 (inclusive).
-     */
-    @Override
-    public void onPushPromiseRead(ChannelHandlerContext ctx, int streamId, int promisedStreamId,
-                                  Http2Headers headers, int padding) throws Http2Exception {
-        logger.log(Level.FINEST, () -> "push promise received: streamId " + streamId +
-                " promised stream ID = " + promisedStreamId + " headers =" + headers);
-        Http2Stream promisedStream = connection.stream(promisedStreamId);
-        FullHttpMessage msg = beginHeader(ctx, promisedStream, headers, false, false);
-        if (msg != null) {
-            msg.headers().setInt(HttpConversionUtil.ExtensionHeaderNames.STREAM_PROMISE_ID.text(), streamId);
-            msg.headers().setShort(HttpConversionUtil.ExtensionHeaderNames.STREAM_WEIGHT.text(),
-                    Http2CodecUtil.DEFAULT_PRIORITY_WEIGHT);
-            endHeader(ctx, promisedStream, msg, false);
-        }
-        Channel channel = ctx.channel();
-        final HttpRequestContext httpRequestContext =
-                channel.attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        httpRequestContext.receiveStreamID(promisedStreamId, headers, channel.newPromise());
-    }
-
-    /**
-     * Notifies the listener that the given stream has now been removed from the connection and
-     * will no longer be returned via {@link Http2Connection#stream(int)}. The connection may
-     * maintain inactive streams for some time before removing them.
-     * <p>
-     * If a {@link RuntimeException} is thrown it will be logged and <strong>not propagated</strong>.
-     * Throwing from this method is not supported and is considered a programming error.
-     */
-    @Override
-    public void onStreamRemoved(Http2Stream stream) {
-        logger.log(Level.FINEST, () -> "stream removed " + stream);
-        removeMessage(stream, true);
-    }
-
-    /**
-     * Create a new {@link FullHttpMessage} based upon the current connection parameters.
-     *
-     * @param stream The stream to create a message for
-     * @param headers The headers associated with {@code stream}
-     * @param validateHttpHeaders
-     * <ul>
-     * <li>{@code true} to validate HTTP headers in the http-codec</li>
-     * <li>{@code false} not to validate HTTP headers in the http-codec</li>
-     * </ul>
-     * @param alloc The {@link ByteBufAllocator} to use to generate the content of the message
-     * @throws Http2Exception if message can not be created
-     */
-    private FullHttpMessage newMessage(Http2Stream stream, Http2Headers headers, boolean validateHttpHeaders,
-                                         ByteBufAllocator alloc) throws Http2Exception {
-        if (headers.status() != null) {
-            return HttpConversionUtil.toHttpResponse(stream.id(), headers, alloc, validateHttpHeaders);
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Get the {@link FullHttpMessage} associated with {@code stream}.
-     * @param stream The stream to get the associated state from
-     * @return The {@link FullHttpMessage} associated with {@code stream}.
-     */
-    private FullHttpMessage getMessage(Http2Stream stream) {
-        return (FullHttpMessage) stream.getProperty(messageKey);
-    }
-
-    /**
-     * Make {@code message} be the state associated with {@code stream}.
-     * @param stream The stream which {@code message} is associated with.
-     * @param message The message which contains the HTTP semantics.
-     */
-    private void putMessage(Http2Stream stream, FullHttpMessage message) {
-        FullHttpMessage previous = stream.setProperty(messageKey, message);
-        if (previous != message && previous != null) {
-            previous.release();
-        }
-    }
-    /**
-     * The stream is out of scope for the HTTP message flow and will no longer be tracked.
-     * @param stream The stream to remove associated state with
-     * @param release {@code true} to call release on the value if it is present. {@code false} to not call release.
-     */
-    private void removeMessage(Http2Stream stream, boolean release) {
-        FullHttpMessage msg = stream.removeProperty(messageKey);
-        if (release && msg != null) {
-            msg.release();
-        }
-    }
-
-    /**
-     * Set final headers and fire a channel read event.
-     *
-     * @param ctx The context to fire the event on
-     * @param msg The message to send
-     * @param release {@code true} to call release on the value if it is present. {@code false} to not call release.
-     * @param stream the stream of the message which is being fired
-     */
-    private void fireChannelRead(ChannelHandlerContext ctx, FullHttpMessage msg, boolean release,
-                                   Http2Stream stream) {
-        removeMessage(stream, release);
-        HttpUtil.setContentLength(msg, msg.content().readableBytes());
-        ctx.fireChannelRead(msg);
-    }
-
-    private FullHttpMessage beginHeader(ChannelHandlerContext ctx, Http2Stream stream, Http2Headers headers,
-                                                  boolean allowAppend, boolean appendToTrailer) throws Http2Exception {
-        FullHttpMessage msg = getMessage(stream);
-        if (msg == null) {
-            msg = newMessage(stream, headers, validateHttpHeaders, ctx.alloc());
-        } else {
-            if (allowAppend) {
-                HttpConversionUtil.addHttp2ToHttpHeaders(stream.id(), headers, msg, appendToTrailer);
-            } else {
-                throw new Http2Exception(Http2Error.PROTOCOL_ERROR, "stream already exists");
-            }
-        }
-        return msg;
-    }
-
-    private void endHeader(ChannelHandlerContext ctx, Http2Stream stream, FullHttpMessage msg, boolean endOfStream) {
-        if (endOfStream) {
-            fireChannelRead(ctx, msg, getMessage(stream) != msg, stream);
-        } else {
-            putMessage(stream, msg);
-        }
-    }
-
-    private static Http2Headers toHttp2Headers(HttpRequestContext httpRequestContext) {
-        HttpRequest httpRequest = httpRequestContext.getHttpRequest();
-        Http2Headers headers = new DefaultHttp2Headers()
-                .method(httpRequest.method().asciiName())
-                .path(httpRequest.uri())
-                .scheme(httpRequestContext.getURI().getScheme())
-                .authority(httpRequestContext.getURI().getHost());
-        HttpConversionUtil.toHttp2Headers(httpRequest.headers(), headers);
-        return headers;
-    }
-}

src/main/java/org/xbib/netty/http/client/handler/Http2NegotiationHandler.java

@@ -1,65 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.handler;
-
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.ChannelPipeline;
-import io.netty.handler.codec.http.HttpClientCodec;
-import io.netty.handler.codec.http2.HttpToHttp2ConnectionHandler;
-import io.netty.handler.ssl.ApplicationProtocolNames;
-import io.netty.handler.ssl.ApplicationProtocolNegotiationHandler;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import static org.xbib.netty.http.client.handler.HttpClientChannelInitializer.configureHttp1Pipeline;
-import static org.xbib.netty.http.client.handler.HttpClientChannelInitializer.configureHttp2Pipeline;
-import static org.xbib.netty.http.client.handler.HttpClientChannelInitializer.createHttp1ConnectionHandler;
-import static org.xbib.netty.http.client.handler.HttpClientChannelInitializer.createHttp2ConnectionHandler;
-
-/**
- *
- */
-class Http2NegotiationHandler extends ApplicationProtocolNegotiationHandler {
-
-    private static final Logger logger = Logger.getLogger(Http2NegotiationHandler.class.getName());
-
-    private final HttpClientChannelInitializer initializer;
-
-    Http2NegotiationHandler(String fallbackProtocol, HttpClientChannelInitializer initializer) {
-        super(fallbackProtocol);
-        this.initializer = initializer;
-    }
-
-    @Override
-    protected void configurePipeline(ChannelHandlerContext ctx, String protocol) throws Exception {
-        ChannelPipeline pipeline = ctx.pipeline();
-        if (ApplicationProtocolNames.HTTP_2.equals(protocol)) {
-            pipeline.addLast(createHttp2ConnectionHandler(initializer.getContext()));
-            configureHttp2Pipeline(pipeline, initializer.getHttp2ResponseHandler());
-            logger.log(Level.FINE, () -> "negotiated HTTP/2: handler = " + pipeline.names());
-            return;
-        }
-        if (ApplicationProtocolNames.HTTP_1_1.equals(protocol)) {
-            pipeline.addLast(createHttp1ConnectionHandler(initializer.getContext()));
-            configureHttp1Pipeline(pipeline, initializer.getContext(), initializer.getHttpHandler());
-            logger.log(Level.FINE, () -> "negotiated HTTP/1.1: handler = " + pipeline.names());
-            return;
-        }
-        ctx.close();
-        throw new IllegalStateException("unexpected protocol: " + protocol);
-    }
-}

src/main/java/org/xbib/netty/http/client/handler/Http2ResponseHandler.java

@@ -1,149 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.handler;
-
-import io.netty.channel.ChannelFuture;
-import io.netty.channel.ChannelHandler;
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.ChannelPromise;
-import io.netty.channel.SimpleChannelInboundHandler;
-import io.netty.channel.pool.ChannelPool;
-import io.netty.handler.codec.http.FullHttpResponse;
-import io.netty.handler.codec.http.HttpHeaderNames;
-import io.netty.handler.codec.http.HttpHeaders;
-import io.netty.handler.codec.http.cookie.ClientCookieDecoder;
-import io.netty.handler.codec.http.cookie.Cookie;
-import io.netty.handler.codec.http2.Http2Headers;
-import io.netty.handler.codec.http2.HttpConversionUtil;
-import org.xbib.netty.http.client.HttpClient;
-import org.xbib.netty.http.client.HttpClientChannelContextDefaults;
-import org.xbib.netty.http.client.HttpRequestContext;
-import org.xbib.netty.http.client.listener.CookieListener;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-import org.xbib.netty.http.client.listener.HttpHeadersListener;
-import org.xbib.netty.http.client.listener.HttpPushListener;
-import org.xbib.netty.http.client.listener.HttpResponseListener;
-
-import java.util.Map.Entry;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- * Netty channel handler for HTTP/2 responses.
- */
-@ChannelHandler.Sharable
-public class Http2ResponseHandler extends SimpleChannelInboundHandler<FullHttpResponse> {
-
-    private static final Logger logger = Logger.getLogger(Http2ResponseHandler.class.getName());
-
-    private final HttpClient httpClient;
-
-    public Http2ResponseHandler(HttpClient httpClient) {
-        this.httpClient = httpClient;
-    }
-
-    @Override
-    protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse httpResponse) throws Exception {
-        logger.log(Level.FINE, () -> httpResponse.getClass().getName());
-        Integer streamId = httpResponse.headers().getInt(HttpConversionUtil.ExtensionHeaderNames.STREAM_ID.text());
-        if (streamId == null) {
-            logger.log(Level.WARNING, () -> "stream ID missing in headers");
-            return;
-        }
-        final HttpRequestContext httpRequestContext =
-                ctx.channel().attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        HttpHeaders httpHeaders = httpResponse.headers();
-        HttpHeadersListener httpHeadersListener =
-                ctx.channel().attr(HttpClientChannelContextDefaults.HEADER_LISTENER_ATTRIBUTE_KEY).get();
-        if (httpHeadersListener != null) {
-            logger.log(Level.FINE, () -> "firing onHeaders");
-            httpHeadersListener.onHeaders(httpHeaders);
-        }
-        CookieListener cookieListener =
-                ctx.channel().attr(HttpClientChannelContextDefaults.COOKIE_LISTENER_ATTRIBUTE_KEY).get();
-        for (String cookieString : httpHeaders.getAll(HttpHeaderNames.SET_COOKIE)) {
-            Cookie cookie = ClientCookieDecoder.STRICT.decode(cookieString);
-            httpRequestContext.addCookie(cookie);
-            if (cookieListener != null) {
-                logger.log(Level.FINE, () -> "firing onCookie");
-                cookieListener.onCookie(cookie);
-            }
-        }
-        Entry<Http2Headers, ChannelPromise> pushEntry = httpRequestContext.getPushMap().get(streamId);
-        if (pushEntry != null) {
-            final HttpPushListener httpPushListener =
-                    ctx.channel().attr(HttpClientChannelContextDefaults.PUSH_LISTENER_ATTRIBUTE_KEY).get();
-            if (httpPushListener != null) {
-                httpPushListener.onPushReceived(pushEntry.getKey(), httpResponse);
-            }
-            if (!pushEntry.getValue().isSuccess()) {
-                pushEntry.getValue().setSuccess();
-            }
-            httpRequestContext.getPushMap().remove(streamId);
-            if (httpRequestContext.isFinished()) {
-                httpRequestContext.success("response finished");
-            }
-            return;
-        }
-        Entry<ChannelFuture, ChannelPromise> promiseEntry = httpRequestContext.getStreamIdPromiseMap().get(streamId);
-        if (promiseEntry != null) {
-            final HttpResponseListener httpResponseListener =
-                    ctx.channel().attr(HttpClientChannelContextDefaults.RESPONSE_LISTENER_ATTRIBUTE_KEY).get();
-            if (httpResponseListener != null) {
-                httpResponseListener.onResponse(httpResponse);
-            }
-            if (!promiseEntry.getValue().isSuccess()) {
-                promiseEntry.getValue().setSuccess();
-            }
-            if (httpClient.tryRedirect(ctx.channel(), httpResponse, httpRequestContext)) {
-                return;
-            }
-            httpRequestContext.getStreamIdPromiseMap().remove(streamId);
-            if (httpRequestContext.isFinished()) {
-                httpRequestContext.success("response finished");
-            }
-        }
-    }
-
-    /**
-     * The only method to release a HTTP/2 channel back to the pool is to wait for inactivity.
-     * @param ctx the channel handler context
-     * @throws Exception if the channel could not be released back to the pool
-     */
-    @Override
-    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
-        logger.log(Level.FINE, ctx::toString);
-        final ChannelPool channelPool =
-                ctx.channel().attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-        channelPool.release(ctx.channel());
-    }
-
-    @Override
-    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
-        logger.log(Level.FINE, () -> "exception caught: " + cause);
-        ExceptionListener exceptionListener =
-                ctx.channel().attr(HttpClientChannelContextDefaults.EXCEPTION_LISTENER_ATTRIBUTE_KEY).get();
-        if (exceptionListener != null) {
-            exceptionListener.onException(cause);
-        }
-        final HttpRequestContext httpRequestContext =
-                ctx.channel().attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        httpRequestContext.fail(cause.getMessage());
-        final ChannelPool channelPool =
-                ctx.channel().attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-        channelPool.release(ctx.channel());
-    }
-}

src/main/java/org/xbib/netty/http/client/handler/HttpClientChannelInitializer.java

@@ -1,235 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.handler;
-
-import io.netty.channel.ChannelInitializer;
-import io.netty.channel.ChannelPipeline;
-import io.netty.channel.socket.SocketChannel;
-import io.netty.handler.codec.http.HttpClientCodec;
-import io.netty.handler.codec.http.HttpClientUpgradeHandler;
-import io.netty.handler.codec.http.HttpContentDecompressor;
-import io.netty.handler.codec.http.HttpObjectAggregator;
-import io.netty.handler.codec.http2.DefaultHttp2Connection;
-import io.netty.handler.codec.http2.DelegatingDecompressorFrameListener;
-import io.netty.handler.codec.http2.Http2ClientUpgradeCodec;
-import io.netty.handler.codec.http2.Http2Connection;
-import io.netty.handler.codec.http2.Http2ConnectionHandler;
-import io.netty.handler.codec.http2.Http2ConnectionHandlerBuilder;
-import io.netty.handler.codec.http2.Http2FrameLogger;
-import io.netty.handler.codec.http2.Http2Settings;
-import io.netty.handler.logging.LogLevel;
-import io.netty.handler.ssl.ApplicationProtocolConfig;
-import io.netty.handler.ssl.ApplicationProtocolNames;
-import io.netty.handler.ssl.SslContextBuilder;
-import io.netty.handler.ssl.SslHandler;
-import io.netty.handler.timeout.ReadTimeoutHandler;
-import org.xbib.netty.http.client.HttpClientChannelContext;
-import org.xbib.netty.http.client.util.InetAddressKey;
-
-import javax.net.ssl.SNIHostName;
-import javax.net.ssl.SNIServerName;
-import javax.net.ssl.SSLEngine;
-import javax.net.ssl.SSLException;
-import javax.net.ssl.SSLParameters;
-import java.util.Arrays;
-import java.util.concurrent.TimeUnit;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- * Netty HTTP client channel initializer.
- */
-public class HttpClientChannelInitializer extends ChannelInitializer<SocketChannel> {
-
-    private static final Logger logger = Logger.getLogger(HttpClientChannelInitializer.class.getName());
-
-    private final HttpClientChannelContext context;
-
-    private final HttpHandler httpHandler;
-
-    private final Http2ResponseHandler http2ResponseHandler;
-
-    private InetAddressKey key;
-
-    /**
-     * Constructor for a new {@link HttpClientChannelInitializer}.
-     * @param context the HTTP client channel context
-     * @param httpHandler the HTTP 1.x handler
-     * @param http2ResponseHandler the HTTP 2 handler
-     */
-    public HttpClientChannelInitializer(HttpClientChannelContext context, HttpHandler httpHandler,
-                                 Http2ResponseHandler http2ResponseHandler) {
-        this.context = context;
-        this.httpHandler = httpHandler;
-        this.http2ResponseHandler = http2ResponseHandler;
-    }
-
-    HttpClientChannelContext getContext() {
-        return context;
-    }
-
-    HttpHandler getHttpHandler() {
-        return httpHandler;
-    }
-
-    Http2ResponseHandler getHttp2ResponseHandler() {
-        return http2ResponseHandler;
-    }
-
-    /**
-     * Sets up a {@link InetAddressKey} for the channel initialization and initializes the channel.
-     * Using this method, the channel initializer can handle secure channels, the HTTP protocol version,
-     * and the host name for Server Name Identification (SNI).
-     * @param ch the channel
-     * @param key the key of the internet address
-     * @throws Exception if channel
-     */
-    public void initChannel(SocketChannel ch, InetAddressKey key) throws Exception {
-        this.key = key;
-        initChannel(ch);
-    }
-
-    @Override
-    protected void initChannel(SocketChannel ch) throws Exception {
-        logger.log(Level.FINE, () -> "initChannel with key = " + key);
-        if (key == null) {
-            throw new IllegalStateException("no key set for channel initialization");
-        }
-        ChannelPipeline pipeline = ch.pipeline();
-        pipeline.addLast(new TrafficLoggingHandler());
-        if (context.getHttpProxyHandler() != null) {
-            pipeline.addLast(context.getHttpProxyHandler());
-        }
-        if (context.getSocks4ProxyHandler() != null) {
-            pipeline.addLast(context.getSocks4ProxyHandler());
-        }
-        if (context.getSocks5ProxyHandler() != null) {
-            pipeline.addLast(context.getSocks5ProxyHandler());
-        }
-        pipeline.addLast(new ReadTimeoutHandler(context.getReadTimeoutMillis(), TimeUnit.MILLISECONDS));
-        if (context.getSslProvider() != null && key.isSecure()) {
-            configureEncrypted(ch);
-        } else {
-           configureClearText(ch);
-        }
-        logger.log(Level.FINE, () -> "initChannel complete, pipeline handler names = " + ch.pipeline().names());
-    }
-
-    private void configureClearText(SocketChannel ch) {
-        ChannelPipeline pipeline = ch.pipeline();
-        if (key.getVersion().majorVersion() == 1) {
-            HttpClientCodec http1connectionHandler = createHttp1ConnectionHandler(context);
-            pipeline.addLast(http1connectionHandler);
-            configureHttp1Pipeline(pipeline, context, httpHandler);
-        } else if (key.getVersion().majorVersion() == 2) {
-            Http2ConnectionHandler http2connectionHandler = createHttp2ConnectionHandler(context);
-            // using the upgrade handler means mixed HTTP 1 and HTTP 2 on the same connection
-            if (context.isInstallHttp2Upgrade()) {
-                HttpClientCodec http1connectionHandler = createHttp1ConnectionHandler(context);
-                Http2ClientUpgradeCodec upgradeCodec =
-                        new Http2ClientUpgradeCodec(http2connectionHandler);
-                HttpClientUpgradeHandler upgradeHandler =
-                        new HttpClientUpgradeHandler(http1connectionHandler, upgradeCodec, context.getMaxContentLength());
-                pipeline.addLast(upgradeHandler);
-                UpgradeRequestHandler upgradeRequestHandler =
-                        new UpgradeRequestHandler();
-                pipeline.addLast(upgradeRequestHandler);
-            } else {
-                pipeline.addLast(http2connectionHandler);
-            }
-            configureHttp2Pipeline(pipeline, http2ResponseHandler);
-            configureHttp1Pipeline(pipeline, context, httpHandler);
-        }
-    }
-
-    private void configureEncrypted(SocketChannel ch) throws SSLException {
-        ChannelPipeline pipeline = ch.pipeline();
-        SslContextBuilder sslContextBuilder = SslContextBuilder.forClient()
-                .sslProvider(context.getSslProvider())
-                .keyManager(context.getKeyCertChainInputStream(), context.getKeyInputStream(), context.getKeyPassword())
-                .ciphers(context.getCiphers(), context.getCipherSuiteFilter())
-                .trustManager(context.getTrustManagerFactory());
-        if (key.getVersion().majorVersion() == 2) {
-            sslContextBuilder.applicationProtocolConfig(new ApplicationProtocolConfig(
-                    ApplicationProtocolConfig.Protocol.ALPN,
-                    ApplicationProtocolConfig.SelectorFailureBehavior.NO_ADVERTISE,
-                    ApplicationProtocolConfig.SelectedListenerFailureBehavior.ACCEPT,
-                    ApplicationProtocolNames.HTTP_2,
-                    ApplicationProtocolNames.HTTP_1_1));
-        }
-        SslHandler sslHandler = sslContextBuilder.build().newHandler(ch.alloc());
-        SSLEngine engine = sslHandler.engine();
-        try {
-            if (context.isUseServerNameIdentification()) {
-                String fullQualifiedHostname = key.getInetSocketAddress().getHostName();
-                SSLParameters params = engine.getSSLParameters();
-                params.setServerNames(Arrays.asList(new SNIServerName[]{new SNIHostName(fullQualifiedHostname)}));
-                engine.setSSLParameters(params);
-            }
-        } finally {
-            pipeline.addLast(sslHandler);
-        }
-        switch (context.getClientAuthMode()) {
-            case NEED:
-                engine.setNeedClientAuth(true);
-                break;
-            case WANT:
-                engine.setWantClientAuth(true);
-                break;
-            default:
-                break;
-        }
-        if (key.getVersion().majorVersion() == 1) {
-            HttpClientCodec http1connectionHandler = createHttp1ConnectionHandler(context);
-            pipeline.addLast(http1connectionHandler);
-            configureHttp1Pipeline(pipeline, context, httpHandler);
-        } else if (key.getVersion().majorVersion() == 2) {
-            pipeline.addLast(new Http2NegotiationHandler(ApplicationProtocolNames.HTTP_1_1, this));
-        }
-    }
-
-    static void configureHttp1Pipeline(ChannelPipeline pipeline, HttpClientChannelContext context, HttpHandler httpHandler) {
-        if (context.isGzipEnabled()) {
-            pipeline.addLast(new HttpContentDecompressor());
-        }
-        HttpObjectAggregator httpObjectAggregator =
-                new HttpObjectAggregator(context.getMaxContentLength(), false);
-        httpObjectAggregator.setMaxCumulationBufferComponents(context.getMaxCompositeBufferComponents());
-        pipeline.addLast(httpObjectAggregator);
-        pipeline.addLast(httpHandler);
-    }
-
-    static void configureHttp2Pipeline(ChannelPipeline pipeline, Http2ResponseHandler http2ResponseHandler) {
-        pipeline.addLast(new UserEventLogger());
-        pipeline.addLast(http2ResponseHandler);
-    }
-
-    static HttpClientCodec createHttp1ConnectionHandler(HttpClientChannelContext context) {
-        return new HttpClientCodec(context.getMaxInitialLineLength(), context.getMaxHeaderSize(), context.getMaxChunkSize());
-    }
-
-    static Http2ConnectionHandler createHttp2ConnectionHandler(HttpClientChannelContext context) {
-        final Http2Connection http2Connection = new DefaultHttp2Connection(false);
-        return new Http2ConnectionHandlerBuilder()
-                .connection(http2Connection)
-                .frameLogger(new Http2FrameLogger(LogLevel.TRACE, HttpClientChannelInitializer.class))
-                .initialSettings(new Http2Settings())
-                .encoderEnforceMaxConcurrentStreams(true)
-                .frameListener(new DelegatingDecompressorFrameListener(http2Connection,
-                        new Http2EventHandler(http2Connection, context.getMaxContentLength(), false)))
-                .build();
-    }
-}

src/main/java/org/xbib/netty/http/client/handler/HttpHandler.java

@@ -1,134 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.handler;
-
-import io.netty.channel.ChannelHandler;
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.ChannelInboundHandlerAdapter;
-import io.netty.channel.pool.ChannelPool;
-import io.netty.handler.codec.http.FullHttpResponse;
-import io.netty.handler.codec.http.HttpHeaderNames;
-import io.netty.handler.codec.http.HttpHeaders;
-import io.netty.handler.codec.http.cookie.ClientCookieDecoder;
-import io.netty.handler.codec.http.cookie.Cookie;
-import org.xbib.netty.http.client.HttpClient;
-import org.xbib.netty.http.client.HttpClientChannelContextDefaults;
-import org.xbib.netty.http.client.HttpRequestContext;
-import org.xbib.netty.http.client.listener.CookieListener;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-import org.xbib.netty.http.client.listener.HttpHeadersListener;
-import org.xbib.netty.http.client.listener.HttpResponseListener;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- * HTTP 1.x Netty channel handler.
- */
-@ChannelHandler.Sharable
-public final class HttpHandler extends ChannelInboundHandlerAdapter {
-
-    private static final Logger logger = Logger.getLogger(HttpHandler.class.getName());
-
-    private final HttpClient httpClient;
-
-    public HttpHandler(HttpClient httpClient) {
-        this.httpClient = httpClient;
-    }
-
-    /**
-     *
-     * Read channel message, hand over content to response handler, and redirect to next URL if possible.
-     * @param ctx the channel handler context
-     * @param msg the channel message
-     * @throws Exception if processing of channel message fails
-     */
-    @Override
-    public void channelRead(final ChannelHandlerContext ctx, Object msg) throws Exception {
-        logger.log(Level.FINE, () -> "channelRead msg " + msg.getClass().getName());
-        final HttpRequestContext httpRequestContext =
-                ctx.channel().attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        if (msg instanceof FullHttpResponse) {
-            FullHttpResponse httpResponse = (FullHttpResponse) msg;
-            HttpHeaders httpHeaders = httpResponse.headers();
-            HttpHeadersListener httpHeadersListener =
-                    ctx.channel().attr(HttpClientChannelContextDefaults.HEADER_LISTENER_ATTRIBUTE_KEY).get();
-            if (httpHeadersListener != null) {
-                logger.log(Level.FINE, () -> "firing onHeaders");
-                httpHeadersListener.onHeaders(httpHeaders);
-            }
-            CookieListener cookieListener =
-                    ctx.channel().attr(HttpClientChannelContextDefaults.COOKIE_LISTENER_ATTRIBUTE_KEY).get();
-            for (String cookieString : httpHeaders.getAll(HttpHeaderNames.SET_COOKIE)) {
-                Cookie cookie = ClientCookieDecoder.STRICT.decode(cookieString);
-                httpRequestContext.addCookie(cookie);
-                if (cookieListener != null) {
-                    logger.log(Level.FINE, () -> "firing onCookie");
-                    cookieListener.onCookie(cookie);
-                }
-            }
-            HttpResponseListener httpResponseListener =
-                    ctx.channel().attr(HttpClientChannelContextDefaults.RESPONSE_LISTENER_ATTRIBUTE_KEY).get();
-            if (httpResponseListener != null) {
-                logger.log(Level.FINE, () -> "firing onResponse");
-                httpResponseListener.onResponse(httpResponse);
-            }
-            logger.log(Level.FINE, () -> "trying redirect");
-            if (httpClient.tryRedirect(ctx.channel(), httpResponse, httpRequestContext)) {
-                return;
-            }
-            httpRequestContext.success("response finished");
-            final ChannelPool channelPool =
-                    ctx.channel().attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-            channelPool.release(ctx.channel());
-        }
-    }
-
-    @Override
-    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
-        logger.log(Level.FINE, () -> "channelInactive " + ctx);
-        final HttpRequestContext httpRequestContext =
-                ctx.channel().attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        if (httpRequestContext.getRedirectCount().get() == 0 && !httpRequestContext.isSucceeded()) {
-            httpRequestContext.fail("channel inactive");
-        }
-        final ChannelPool channelPool =
-                ctx.channel().attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-        channelPool.release(ctx.channel());
-    }
-
-    /**
-     * Forward channel exceptions to the exception listener.
-     * @param ctx the channel handler context
-     * @param cause the cause of the exception
-     * @throws Exception if forwarding fails
-     */
-    @Override
-    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
-        ExceptionListener exceptionListener =
-                ctx.channel().attr(HttpClientChannelContextDefaults.EXCEPTION_LISTENER_ATTRIBUTE_KEY).get();
-        logger.log(Level.FINE, () -> "exceptionCaught");
-        if (exceptionListener != null) {
-            exceptionListener.onException(cause);
-        }
-        final HttpRequestContext httpRequestContext =
-                ctx.channel().attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        httpRequestContext.fail(cause.getMessage());
-        final ChannelPool channelPool =
-                ctx.channel().attr(HttpClientChannelContextDefaults.CHANNEL_POOL_ATTRIBUTE_KEY).get();
-        channelPool.release(ctx.channel());
-    }
-}

src/main/java/org/xbib/netty/http/client/handler/TrafficLoggingHandler.java

@@ -1,18 +1,3 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.handler;
 
 import io.netty.buffer.ByteBuf;
@@ -26,24 +11,24 @@ import io.netty.handler.logging.LoggingHandler;
  * A Netty handler that logs the I/O traffic of a connection.
  */
 @ChannelHandler.Sharable
-class TrafficLoggingHandler extends LoggingHandler {
+public class TrafficLoggingHandler extends LoggingHandler {
 
-    TrafficLoggingHandler() {
+    public TrafficLoggingHandler() {
         super("client", LogLevel.TRACE);
     }
 
     @Override
-    public void channelRegistered(ChannelHandlerContext ctx) throws Exception {
+    public void channelRegistered(ChannelHandlerContext ctx) {
         ctx.fireChannelRegistered();
     }
 
     @Override
-    public void channelUnregistered(ChannelHandlerContext ctx) throws Exception {
+    public void channelUnregistered(ChannelHandlerContext ctx) {
         ctx.fireChannelUnregistered();
     }
 
     @Override
-    public void flush(ChannelHandlerContext ctx) throws Exception {
+    public void flush(ChannelHandlerContext ctx) {
         ctx.flush();
     }
 

src/main/java/org/xbib/netty/http/client/handler/UpgradeRequestHandler.java

@@ -1,71 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.handler;
-
-import io.netty.channel.ChannelHandler;
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.ChannelInboundHandlerAdapter;
-import io.netty.handler.codec.http.DefaultFullHttpRequest;
-import io.netty.handler.codec.http.HttpMethod;
-import io.netty.handler.codec.http.HttpVersion;
-import org.xbib.netty.http.client.HttpClientChannelContextDefaults;
-import org.xbib.netty.http.client.HttpRequestContext;
-import org.xbib.netty.http.client.listener.ExceptionListener;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- *
- */
-@ChannelHandler.Sharable
-class UpgradeRequestHandler extends ChannelInboundHandlerAdapter {
-
-    private static final Logger logger = Logger.getLogger(UpgradeRequestHandler.class.getName());
-
-    /**
-     * Send an upgrade request if channel becomes active.
-     * @param ctx the channel handler context
-     * @throws Exception if upgrade request sending fails
-     */
-    @Override
-    public void channelActive(ChannelHandlerContext ctx) throws Exception {
-        DefaultFullHttpRequest upgradeRequest = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/");
-        ctx.writeAndFlush(upgradeRequest);
-        super.channelActive(ctx);
-        ctx.pipeline().remove(this);
-        logger.log(Level.FINE, () -> "upgrade request handler removed, pipeline = " + ctx.pipeline().names());
-    }
-
-    /**
-     * Forward channel exceptions to the exception listener.
-     * @param ctx the channel handler context
-     * @param cause the cause of the exception
-     * @throws Exception if forwarding fails
-     */
-    @Override
-    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
-        logger.log(Level.FINE, () -> "exceptionCaught " + cause.getMessage());
-        ExceptionListener exceptionListener =
-                ctx.channel().attr(HttpClientChannelContextDefaults.EXCEPTION_LISTENER_ATTRIBUTE_KEY).get();
-        if (exceptionListener != null) {
-            exceptionListener.onException(cause);
-        }
-        final HttpRequestContext httpRequestContext =
-                ctx.channel().attr(HttpClientChannelContextDefaults.REQUEST_CONTEXT_ATTRIBUTE_KEY).get();
-        httpRequestContext.fail(cause.getMessage());
-    }
-}

src/main/java/org/xbib/netty/http/client/handler/UserEventLogger.java

@@ -1,25 +1,9 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.handler;
 
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import io.netty.channel.socket.ChannelInputShutdownReadComplete;
-import io.netty.handler.codec.http2.Http2ConnectionPrefaceWrittenEvent;
 import io.netty.handler.ssl.SslCloseCompletionEvent;
 
 import java.util.logging.Level;
@@ -36,10 +20,8 @@ class UserEventLogger extends ChannelInboundHandlerAdapter {
     @Override
     public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
         logger.log(Level.FINE, () -> "got user event " + evt);
-        if (evt instanceof Http2ConnectionPrefaceWrittenEvent ||
-                evt instanceof SslCloseCompletionEvent ||
+        if (evt instanceof SslCloseCompletionEvent ||
                 evt instanceof ChannelInputShutdownReadComplete) {
-            // log expected events
             logger.log(Level.FINE, () -> "user event is expected: " + evt);
             return;
         }

src/main/java/org/xbib/netty/http/client/handler/http1/HttpChannelInitializer.java

@@ -0,0 +1,92 @@
+package org.xbib.netty.http.client.handler.http1;
+
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.ChannelPipeline;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.handler.codec.http.HttpClientCodec;
+import io.netty.handler.codec.http.HttpContentDecompressor;
+import io.netty.handler.codec.http.HttpObjectAggregator;
+import io.netty.handler.ssl.SslContextBuilder;
+import io.netty.handler.ssl.SslHandler;
+import org.xbib.netty.http.client.ClientConfig;
+import org.xbib.netty.http.client.HttpAddress;
+import org.xbib.netty.http.client.handler.TrafficLoggingHandler;
+
+import javax.net.ssl.SNIHostName;
+import javax.net.ssl.SSLEngine;
+import javax.net.ssl.SSLException;
+import javax.net.ssl.SSLParameters;
+import java.util.Collections;
+
+public class HttpChannelInitializer extends ChannelInitializer<SocketChannel> {
+
+    private final ClientConfig clientConfig;
+
+    private final HttpAddress httpAddress;
+
+    private final HttpResponseHandler httpResponseHandler;
+
+    public HttpChannelInitializer(ClientConfig clientConfig, HttpAddress httpAddress, HttpResponseHandler httpResponseHandler) {
+        this.clientConfig = clientConfig;
+        this.httpAddress = httpAddress;
+        this.httpResponseHandler = httpResponseHandler;
+    }
+
+    @Override
+    protected void initChannel(SocketChannel ch) {
+        ch.pipeline().addLast(new TrafficLoggingHandler());
+        if (httpAddress.isSecure()) {
+            configureEncryptedHttp1(ch);
+        } else {
+            configureCleartextHttp1(ch);
+        }
+    }
+
+    private void configureEncryptedHttp1(SocketChannel ch)  {
+        ChannelPipeline pipeline = ch.pipeline();
+        try {
+            SslContextBuilder sslContextBuilder = SslContextBuilder.forClient()
+                    .sslProvider(clientConfig.getSslProvider())
+                    .keyManager(clientConfig.getKeyCertChainInputStream(), clientConfig.getKeyInputStream(),
+                            clientConfig.getKeyPassword())
+                    .ciphers(clientConfig.getCiphers(), clientConfig.getCipherSuiteFilter())
+                    .trustManager(clientConfig.getTrustManagerFactory());
+            SslHandler sslHandler = sslContextBuilder.build().newHandler(ch.alloc());
+            SSLEngine engine = sslHandler.engine();
+            if (clientConfig.isServerNameIdentification()) {
+                String fullQualifiedHostname = httpAddress.getInetSocketAddress().getHostName();
+                SSLParameters params = engine.getSSLParameters();
+                params.setServerNames(Collections.singletonList(new SNIHostName(fullQualifiedHostname)));
+                engine.setSSLParameters(params);
+            }
+            pipeline.addLast(sslHandler);
+            switch (clientConfig.getClientAuthMode()) {
+                case NEED:
+                    engine.setNeedClientAuth(true);
+                    break;
+                case WANT:
+                    engine.setWantClientAuth(true);
+                    break;
+                default:
+                    break;
+            }
+        } catch (SSLException e) {
+            throw new IllegalStateException("unable to configure SSL: " + e.getMessage(), e);
+        }
+        configureCleartextHttp1(ch);
+    }
+
+    private void configureCleartextHttp1(SocketChannel ch) {
+        ChannelPipeline pipeline = ch.pipeline();
+        pipeline.addLast(new HttpClientCodec(clientConfig.getMaxInitialLineLength(),
+                 clientConfig.getMaxHeadersSize(), clientConfig.getMaxChunkSize()));
+        if (clientConfig.isEnableGzip()) {
+            pipeline.addLast(new HttpContentDecompressor());
+        }
+        HttpObjectAggregator httpObjectAggregator = new HttpObjectAggregator(clientConfig.getMaxContentLength(),
+                false);
+        httpObjectAggregator.setMaxCumulationBufferComponents(clientConfig.getMaxCompositeBufferComponents());
+        pipeline.addLast(httpObjectAggregator);
+        pipeline.addLast(httpResponseHandler);
+    }
+}

src/main/java/org/xbib/netty/http/client/handler/http1/HttpResponseHandler.java

@@ -0,0 +1,26 @@
+package org.xbib.netty.http.client.handler.http1;
+
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import io.netty.handler.codec.http.FullHttpResponse;
+import org.xbib.netty.http.client.transport.Transport;
+
+@ChannelHandler.Sharable
+public class HttpResponseHandler extends SimpleChannelInboundHandler<FullHttpResponse> {
+
+    @Override
+    protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse httpResponse) {
+        Transport transport = ctx.channel().attr(Transport.TRANSPORT_ATTRIBUTE_KEY).get();
+        transport.headersReceived(null, httpResponse.headers());
+        transport.responseReceived(null, httpResponse);
+        transport.success();
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
+        Transport transport = ctx.channel().attr(Transport.TRANSPORT_ATTRIBUTE_KEY).get();
+        transport.fail(cause);
+        ctx.channel().close();
+    }
+}

src/main/java/org/xbib/netty/http/client/handler/http2/Http2ChannelInitializer.java

@@ -0,0 +1,112 @@
+package org.xbib.netty.http.client.handler.http2;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.handler.codec.http2.DefaultHttp2Connection;
+import io.netty.handler.codec.http2.DelegatingDecompressorFrameListener;
+import io.netty.handler.codec.http2.Http2ConnectionHandler;
+import io.netty.handler.codec.http2.Http2FrameLogger;
+import io.netty.handler.codec.http2.Http2SecurityUtil;
+import io.netty.handler.codec.http2.HttpToHttp2ConnectionHandlerBuilder;
+import io.netty.handler.codec.http2.InboundHttp2ToHttpAdapterBuilder;
+import io.netty.handler.logging.LogLevel;
+import io.netty.handler.ssl.ApplicationProtocolConfig;
+import io.netty.handler.ssl.ApplicationProtocolNames;
+import io.netty.handler.ssl.ApplicationProtocolNegotiationHandler;
+import io.netty.handler.ssl.SslContext;
+import io.netty.handler.ssl.SslContextBuilder;
+import io.netty.handler.ssl.SslHandler;
+import io.netty.handler.ssl.SslProvider;
+import io.netty.handler.ssl.SupportedCipherSuiteFilter;
+import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
+import org.xbib.netty.http.client.ClientConfig;
+import org.xbib.netty.http.client.HttpAddress;
+
+import javax.net.ssl.SNIHostName;
+import javax.net.ssl.SSLEngine;
+import javax.net.ssl.SSLException;
+import javax.net.ssl.SSLParameters;
+import java.util.Collections;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class Http2ChannelInitializer extends ChannelInitializer<SocketChannel> {
+
+    private static final Logger logger = Logger.getLogger(Http2ChannelInitializer.class.getName());
+
+    private final ClientConfig clientConfig;
+
+    private final HttpAddress httpAddress;
+
+    private final Http2SettingsHandler http2SettingsHandler;
+
+    private final Http2ResponseHandler http2ResponseHandler;
+
+    public Http2ChannelInitializer(ClientConfig clientConfig,
+                            HttpAddress httpAddress,
+                            Http2SettingsHandler http2SettingsHandler,
+                            Http2ResponseHandler http2ResponseHandler) {
+        this.clientConfig = clientConfig;
+        this.httpAddress = httpAddress;
+        this.http2SettingsHandler = http2SettingsHandler;
+        this.http2ResponseHandler = http2ResponseHandler;
+    }
+
+    /**
+     * The channel initialization for HTTP/2 is always encrypted.
+     * The reason is there is no known HTTP/2 server supporting cleartext.
+     *
+     * @param ch socket channel
+     */
+    @Override
+    protected void initChannel(SocketChannel ch) {
+        DefaultHttp2Connection http2Connection = new DefaultHttp2Connection(false);
+        Http2FrameLogger frameLogger = new Http2FrameLogger(LogLevel.INFO, "client");
+        Http2ConnectionHandler http2ConnectionHandler = new HttpToHttp2ConnectionHandlerBuilder()
+                .connection(http2Connection)
+                .frameLogger(frameLogger)
+                .frameListener(new DelegatingDecompressorFrameListener(http2Connection,
+                        new InboundHttp2ToHttpAdapterBuilder(http2Connection)
+                                .maxContentLength(clientConfig.getMaxContentLength())
+                                .propagateSettings(true)
+                                .build()))
+                .build();
+
+        try {
+            SslContext sslContext = SslContextBuilder.forClient()
+                    .sslProvider(SslProvider.JDK)
+                    .trustManager(InsecureTrustManagerFactory.INSTANCE)
+                    .ciphers(Http2SecurityUtil.CIPHERS, SupportedCipherSuiteFilter.INSTANCE)
+                    .applicationProtocolConfig(new ApplicationProtocolConfig(
+                            ApplicationProtocolConfig.Protocol.ALPN,
+                            ApplicationProtocolConfig.SelectorFailureBehavior.NO_ADVERTISE,
+                            ApplicationProtocolConfig.SelectedListenerFailureBehavior.ACCEPT,
+                            ApplicationProtocolNames.HTTP_2))
+                    .build();
+            SslHandler sslHandler = sslContext.newHandler(ch.alloc());
+            SSLEngine engine = sslHandler.engine();
+            if (clientConfig.isServerNameIdentification()) {
+                String fullQualifiedHostname = httpAddress.getInetSocketAddress().getHostName();
+                SSLParameters params = engine.getSSLParameters();
+                params.setServerNames(Collections.singletonList(new SNIHostName(fullQualifiedHostname)));
+                engine.setSSLParameters(params);
+            }
+            ch.pipeline().addLast(sslHandler);
+            ApplicationProtocolNegotiationHandler negotiationHandler = new ApplicationProtocolNegotiationHandler("") {
+                @Override
+                protected void configurePipeline(ChannelHandlerContext ctx, String protocol) {
+                    if (ApplicationProtocolNames.HTTP_2.equals(protocol)) {
+                        ctx.pipeline().addLast(http2ConnectionHandler, http2SettingsHandler, http2ResponseHandler);
+                        return;
+                    }
+                    ctx.close();
+                    throw new IllegalStateException("unknown protocol: " + protocol);
+                }
+            };
+            ch.pipeline().addLast(negotiationHandler);
+        } catch (SSLException e) {
+            logger.log(Level.SEVERE, e.getMessage(), e);
+        }
+    }
+}

src/main/java/org/xbib/netty/http/client/handler/http2/Http2ResponseHandler.java

@@ -0,0 +1,41 @@
+package org.xbib.netty.http.client.handler.http2;
+
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http2.HttpConversionUtil;
+import org.xbib.netty.http.client.transport.Transport;
+
+import java.io.IOException;
+
+@ChannelHandler.Sharable
+public class Http2ResponseHandler extends SimpleChannelInboundHandler<FullHttpResponse> {
+
+    @Override
+    protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse httpResponse) {
+        Transport transport = ctx.channel().attr(Transport.TRANSPORT_ATTRIBUTE_KEY).get();
+        Integer streamId = httpResponse.headers().getInt(HttpConversionUtil.ExtensionHeaderNames.STREAM_ID.text());
+        transport.headersReceived(streamId, httpResponse.headers());
+        transport.responseReceived(streamId, httpResponse);
+    }
+
+    @Override
+    public void channelReadComplete(ChannelHandlerContext ctx)  {
+        // do nothing
+    }
+
+    @Override
+    public void channelInactive(ChannelHandlerContext ctx)  {
+        ctx.fireChannelInactive();
+        Transport transport = ctx.channel().attr(Transport.TRANSPORT_ATTRIBUTE_KEY).get();
+        transport.fail(new IOException("channel closed"));
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
+        Transport transport = ctx.channel().attr(Transport.TRANSPORT_ATTRIBUTE_KEY).get();
+        transport.fail(cause);
+        ctx.channel().close();
+    }
+}

src/main/java/org/xbib/netty/http/client/handler/http2/Http2SettingsHandler.java

@@ -0,0 +1,18 @@
+package org.xbib.netty.http.client.handler.http2;
+
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import io.netty.handler.codec.http2.Http2Settings;
+import org.xbib.netty.http.client.transport.Transport;
+
+@ChannelHandler.Sharable
+public class Http2SettingsHandler extends SimpleChannelInboundHandler<Http2Settings> {
+
+    @Override
+    protected void channelRead0(ChannelHandlerContext ctx, Http2Settings http2Settings) {
+        Transport transport = ctx.channel().attr(Transport.TRANSPORT_ATTRIBUTE_KEY).get();
+        transport.settingsReceived(ctx.channel(), http2Settings);
+        ctx.pipeline().remove(this);
+    }
+}

src/main/java/org/xbib/netty/http/client/internal/HttpClientChannelPoolHandler.java

@@ -1,76 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.internal;
-
-import io.netty.channel.Channel;
-import io.netty.channel.pool.ChannelPoolHandler;
-import io.netty.channel.socket.SocketChannel;
-import org.xbib.netty.http.client.handler.HttpClientChannelInitializer;
-import org.xbib.netty.http.client.util.InetAddressKey;
-
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- *
- */
-public class HttpClientChannelPoolHandler implements ChannelPoolHandler {
-
-    private static final Logger logger = Logger.getLogger(HttpClientChannelPoolHandler.class.getName());
-
-    private final HttpClientChannelInitializer channelInitializer;
-
-    private final InetAddressKey key;
-
-    private final AtomicInteger active = new AtomicInteger();
-
-    private int peak;
-
-    public HttpClientChannelPoolHandler(HttpClientChannelInitializer channelInitializer, InetAddressKey key) {
-        this.channelInitializer = channelInitializer;
-        this.key = key;
-    }
-
-    @Override
-    public void channelCreated(Channel ch) throws Exception {
-        logger.log(Level.FINE, () -> "channel created " + ch + " key:" + key);
-        channelInitializer.initChannel((SocketChannel) ch, key);
-        int n = active.incrementAndGet();
-        if (n > peak) {
-            peak = n;
-        }
-    }
-
-    @Override
-    public void channelAcquired(Channel ch) throws Exception {
-        logger.log(Level.FINE, () -> "channel acquired from pool " + ch);
-    }
-
-    @Override
-    public void channelReleased(Channel ch) throws Exception {
-        logger.log(Level.FINE, () -> "channel released to pool " + ch);
-        active.decrementAndGet();
-    }
-
-    public int getActive() {
-        return active.get();
-    }
-
-    public int getPeak() {
-        return peak;
-    }
-}

src/main/java/org/xbib/netty/http/client/internal/HttpClientChannelPoolMap.java

@@ -1,71 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.internal;
-
-import io.netty.bootstrap.Bootstrap;
-import io.netty.channel.pool.AbstractChannelPoolMap;
-import io.netty.channel.pool.FixedChannelPool;
-import org.xbib.netty.http.client.HttpClient;
-import org.xbib.netty.http.client.HttpClientChannelContext;
-import org.xbib.netty.http.client.handler.Http2ResponseHandler;
-import org.xbib.netty.http.client.handler.HttpClientChannelInitializer;
-import org.xbib.netty.http.client.handler.HttpHandler;
-import org.xbib.netty.http.client.util.InetAddressKey;
-
-/**
- *
- */
-public class HttpClientChannelPoolMap extends AbstractChannelPoolMap<InetAddressKey, FixedChannelPool> {
-
-    private final HttpClient httpClient;
-
-    private final HttpClientChannelContext httpClientChannelContext;
-
-    private final Bootstrap bootstrap;
-
-    private final int maxConnections;
-
-    private HttpClientChannelInitializer httpClientChannelInitializer;
-
-    private HttpClientChannelPoolHandler httpClientChannelPoolHandler;
-
-    public HttpClientChannelPoolMap(HttpClient httpClient,
-                             HttpClientChannelContext httpClientChannelContext,
-                             Bootstrap bootstrap,
-                             int maxConnections) {
-        this.httpClient = httpClient;
-        this.httpClientChannelContext = httpClientChannelContext;
-        this.bootstrap = bootstrap;
-        this.maxConnections = maxConnections;
-    }
-
-    @Override
-    protected FixedChannelPool newPool(InetAddressKey key) {
-        this.httpClientChannelInitializer = new HttpClientChannelInitializer(httpClientChannelContext,
-                new HttpHandler(httpClient), new Http2ResponseHandler(httpClient));
-        this.httpClientChannelPoolHandler = new HttpClientChannelPoolHandler(httpClientChannelInitializer, key);
-        return new FixedChannelPool(bootstrap.remoteAddress(key.getInetSocketAddress()),
-               httpClientChannelPoolHandler, maxConnections);
-    }
-
-    public HttpClientChannelInitializer getHttpClientChannelInitializer() {
-        return httpClientChannelInitializer;
-    }
-
-    public HttpClientChannelPoolHandler getHttpClientChannelPoolHandler() {
-        return httpClientChannelPoolHandler;
-    }
-}

src/main/java/org/xbib/netty/http/client/internal/HttpClientThreadFactory.java

@@ -1,33 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.internal;
-
-import java.util.concurrent.ThreadFactory;
-
-/**
- *
- */
-public class HttpClientThreadFactory implements ThreadFactory {
-
-    private int number = 0;
-
-    @Override
-    public Thread newThread(Runnable runnable) {
-        Thread thread = new Thread(runnable, "org-xbib-netty-http-client-pool-" + (number++));
-        thread.setDaemon(true);
-        return thread;
-    }
-}

src/main/java/org/xbib/netty/http/client/internal/package-info.java

@@ -1,4 +0,0 @@
-/**
- * Internal classes for Netty HTTP client.
- */
-package org.xbib.netty.http.client.internal;

src/main/java/org/xbib/netty/http/client/listener/CookieListener.java

@@ -2,8 +2,6 @@ package org.xbib.netty.http.client.listener;
 
 import io.netty.handler.codec.http.cookie.Cookie;
 
-/**
- */
 @FunctionalInterface
 public interface CookieListener {
 

src/main/java/org/xbib/netty/http/client/listener/ExceptionListener.java

@@ -1,28 +1,7 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.listener;
 
-/**
- */
 @FunctionalInterface
 public interface ExceptionListener {
 
-    /**
-     * Called when an exception is transported to a listener.
-     * @param throwable the exception
-     */
     void onException(Throwable throwable);
 }

src/main/java/org/xbib/netty/http/client/listener/HttpHeadersListener.java

@@ -1,24 +1,7 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.listener;
 
 import io.netty.handler.codec.http.HttpHeaders;
 
-/**
- */
 @FunctionalInterface
 public interface HttpHeadersListener {
 

src/main/java/org/xbib/netty/http/client/listener/HttpPushListener.java

@@ -1,27 +1,8 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.listener;
 
 import io.netty.handler.codec.http.FullHttpResponse;
 import io.netty.handler.codec.http2.Http2Headers;
 
-/**
- * This listener can forward HTTP push.
- *
- */
 @FunctionalInterface
 public interface HttpPushListener {
 

src/main/java/org/xbib/netty/http/client/listener/HttpResponseListener.java

@@ -1,24 +1,7 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.listener;
 
 import io.netty.handler.codec.http.FullHttpResponse;
 
-/**
- */
 @FunctionalInterface
 public interface HttpResponseListener {
 

src/main/java/org/xbib/netty/http/client/rest/RestClient.java

@@ -0,0 +1,57 @@
+package org.xbib.netty.http.client.rest;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpMethod;
+import org.xbib.net.URL;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.HttpAddress;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.transport.Transport;
+
+import java.io.IOException;
+import java.net.ConnectException;
+import java.nio.charset.StandardCharsets;
+import java.util.logging.Logger;
+
+public class RestClient {
+
+    private static final Logger logger = Logger.getLogger(RestClient.class.getName());
+
+    private Client client;
+
+    private Transport transport;
+
+    private FullHttpResponse response;
+
+    private RestClient(Client client, Transport transport) {
+        this.client = client;
+        this.transport = transport;
+    }
+
+    public void setResponse(FullHttpResponse response) {
+        this.response = response.copy();
+    }
+
+    public String asString() {
+        ByteBuf byteBuf = response != null ? response.content() : null;
+        return byteBuf != null && byteBuf.isReadable() ? response.content().toString(StandardCharsets.UTF_8) : null;
+    }
+
+    public static RestClient get(String urlString) throws IOException {
+        URL url = URL.create(urlString);
+        Client client = new Client();
+        Transport transport = client.newTransport(HttpAddress.http1(url));
+        RestClient restClient = new RestClient(client, transport);
+        transport.setResponseListener(restClient::setResponse);
+        try {
+            transport.connect();
+        } catch (InterruptedException e) {
+            throw new ConnectException("unable to connect to " + url);
+        }
+        transport.awaitSettings();
+        transport.execute(Request.builder(HttpMethod.GET).setURL(url).build());
+        transport.get();
+        return restClient;
+    }
+}

src/main/java/org/xbib/netty/http/client/transport/BaseTransport.java

@@ -0,0 +1,330 @@
+package org.xbib.netty.http.client.transport;
+
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.DefaultFullHttpRequest;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpHeaderNames;
+import io.netty.handler.codec.http.HttpMethod;
+import io.netty.handler.codec.http.cookie.ClientCookieEncoder;
+import io.netty.handler.codec.http.cookie.Cookie;
+import io.netty.handler.codec.http2.HttpConversionUtil;
+import org.xbib.net.PercentDecoder;
+import org.xbib.net.URL;
+import org.xbib.net.URLSyntaxException;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.HttpAddress;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.RequestBuilder;
+import org.xbib.netty.http.client.listener.CookieListener;
+import org.xbib.netty.http.client.listener.ExceptionListener;
+import org.xbib.netty.http.client.listener.HttpHeadersListener;
+import org.xbib.netty.http.client.listener.HttpPushListener;
+import org.xbib.netty.http.client.listener.HttpResponseListener;
+
+import java.nio.charset.MalformedInputException;
+import java.nio.charset.StandardCharsets;
+import java.nio.charset.UnmappableCharacterException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.SortedMap;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentSkipListMap;
+import java.util.function.Function;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.stream.Collectors;
+
+abstract class BaseTransport implements Transport {
+
+    private static final Logger logger = Logger.getLogger(BaseTransport.class.getName());
+
+    protected final Client client;
+
+    protected final HttpAddress httpAddress;
+
+    protected Channel channel;
+
+    protected SortedMap<Integer, Request> requests;
+
+    protected HttpResponseListener responseListener;
+
+    protected ExceptionListener exceptionListener;
+
+    protected HttpHeadersListener httpHeadersListener;
+
+    protected CookieListener cookieListener;
+
+    protected HttpPushListener pushListener;
+
+    private Map<Cookie, Boolean> cookieBox;
+
+    BaseTransport(Client client, HttpAddress httpAddress) {
+        this.client = client;
+        this.httpAddress = httpAddress;
+        this.requests = new ConcurrentSkipListMap<>();
+    }
+
+    @Override
+    public HttpAddress httpAddress() {
+        return httpAddress;
+    }
+
+    @Override
+    public void connect() throws InterruptedException {
+        channel = client.newChannel(httpAddress);
+        channel.attr(TRANSPORT_ATTRIBUTE_KEY).set(this);
+    }
+
+    @Override
+    public Channel channel() {
+        return channel;
+    }
+
+    @Override
+    public Transport execute(Request request) {
+        if (channel == null) {
+            try {
+                connect();
+                awaitSettings();
+            } catch (InterruptedException e) {
+                return this;
+            }
+        }
+        setResponseListener(request.getResponseListener());
+        setExceptionListener(request.getExceptionListener());
+        setHeadersListener(request.getHeadersListener());
+        setCookieListener(request.getCookieListener());
+        setPushListener(request.getPushListener());
+        // some HTTP 1.1 servers like Elasticsearch do not understand full URIs in HTTP command line
+        String uri = request.httpVersion().majorVersion() < 2 ?
+                request.base().relativeReference() : request.base().toString();
+        FullHttpRequest fullHttpRequest = request.content() == null ?
+                new DefaultFullHttpRequest(request.httpVersion(), request.httpMethod(), uri) :
+                new DefaultFullHttpRequest(request.httpVersion(), request.httpMethod(), uri,
+                        request.content());
+        Integer streamId = nextStream();
+        if (streamId != null) {
+            request.headers().add(HttpConversionUtil.ExtensionHeaderNames.STREAM_ID.text(), Integer.toString(streamId));
+        }
+        // add matching cookies from box (previous requests) and new cookies from request builder
+        Collection<Cookie> cookies = new ArrayList<>();
+        cookies.addAll(matchCookiesFromBox(request));
+        cookies.addAll(matchCookies(request));
+        if (!cookies.isEmpty()) {
+            request.headers().set(HttpHeaderNames.COOKIE, ClientCookieEncoder.STRICT.encode(cookies));
+        }
+        // add stream-id and cookie headers
+        fullHttpRequest.headers().set(request.headers());
+        requests.put(streamId, request);
+        logger.log(Level.FINE, () -> "streamId = " + streamId + " writing request = " + fullHttpRequest);
+        channel.writeAndFlush(fullHttpRequest);
+        return this;
+    }
+
+    /**
+     * Experimental.
+     * @param request request
+     * @param supplier supplier
+     * @param <T> supplier result
+     * @return completable future
+     */
+    @Override
+    public <T> CompletableFuture<T> execute(Request request,
+                                            Function<FullHttpResponse, T> supplier) {
+        final CompletableFuture<T> completableFuture = new CompletableFuture<>();
+        request.setExceptionListener(completableFuture::completeExceptionally);
+        request.setResponseListener(response -> completableFuture.complete(supplier.apply(response)));
+        execute(request);
+        return completableFuture;
+    }
+
+    @Override
+    public void close() {
+        get();
+        if (channel != null) {
+            channel.close();
+        }
+    }
+
+    @Override
+    public void setResponseListener(HttpResponseListener responseListener) {
+        if (responseListener != null) {
+            this.responseListener = responseListener;
+        }
+    }
+
+    @Override
+    public HttpResponseListener getResponseListener() {
+        return responseListener;
+    }
+
+    @Override
+    public void setHeadersListener(HttpHeadersListener httpHeadersListener) {
+        if (httpHeadersListener != null) {
+            this.httpHeadersListener = httpHeadersListener;
+        }
+    }
+
+    @Override
+    public HttpHeadersListener getHeadersListener() {
+        return httpHeadersListener;
+    }
+
+    @Override
+    public void setCookieListener(CookieListener cookieListener) {
+        if (cookieListener != null) {
+            this.cookieListener = cookieListener;
+        }
+    }
+
+    @Override
+    public CookieListener getCookieListener() {
+        return cookieListener;
+    }
+
+    @Override
+    public void setExceptionListener(ExceptionListener exceptionListener) {
+        if (exceptionListener != null) {
+            this.exceptionListener = exceptionListener;
+        }
+    }
+
+    @Override
+    public ExceptionListener getExceptionListener() {
+        return exceptionListener;
+    }
+
+    @Override
+    public void setPushListener(HttpPushListener pushListener) {
+        if (pushListener != null) {
+            this.pushListener = pushListener;
+        }
+    }
+
+    @Override
+    public HttpPushListener getPushListener() {
+        return pushListener;
+    }
+
+    protected Request continuation(Integer streamId, FullHttpResponse httpResponse) throws URLSyntaxException {
+        if (httpResponse == null) {
+            return null;
+        }
+        try {
+            if (streamId == null) {
+                streamId = requests.lastKey();
+            }
+            Request request = requests.get(streamId);
+            if (request.checkRedirect()) {
+                int status = httpResponse.status().code();
+                switch (status) {
+                    case 300:
+                    case 301:
+                    case 302:
+                    case 303:
+                    case 305:
+                    case 307:
+                    case 308:
+                        String location = httpResponse.headers().get(HttpHeaderNames.LOCATION);
+                        location = new PercentDecoder(StandardCharsets.UTF_8.newDecoder()).decode(location);
+                        if (location != null) {
+                            logger.log(Level.INFO, "found redirect location: " + location);
+                            URL redirUrl = URL.base(request.base()).resolve(location);
+                            HttpMethod method = httpResponse.status().code() == 303 ? HttpMethod.GET : request.httpMethod();
+                            RequestBuilder newHttpRequestBuilder = Request.builder(method)
+                                    .setURL(redirUrl)
+                                    .setVersion(request.httpVersion())
+                                    .setHeaders(request.headers())
+                                    .setContent(request.content());
+                            request.base().getQueryParams().forEach(pair ->
+                                newHttpRequestBuilder.addParam(pair.getFirst(), pair.getSecond())
+                            );
+                            request.cookies().forEach(newHttpRequestBuilder::addCookie);
+                            Request newHttpRequest = newHttpRequestBuilder.build();
+                            newHttpRequest.setResponseListener(request.getResponseListener());
+                            newHttpRequest.setExceptionListener(request.getExceptionListener());
+                            newHttpRequest.setHeadersListener(request.getHeadersListener());
+                            newHttpRequest.setCookieListener(request.getCookieListener());
+                            newHttpRequest.setPushListener(request.getPushListener());
+                            StringBuilder hostAndPort = new StringBuilder();
+                            hostAndPort.append(redirUrl.getHost());
+                            if (redirUrl.getPort() != null) {
+                                hostAndPort.append(':').append(redirUrl.getPort());
+                            }
+                            newHttpRequest.headers().set(HttpHeaderNames.HOST, hostAndPort.toString());
+                            logger.log(Level.INFO, "redirect url: " + redirUrl +
+                                    " old request: " + request.toString() +
+                                    " new request: " + newHttpRequest.toString());
+                            return newHttpRequest;
+                        }
+                        break;
+                    default:
+                        logger.log(Level.FINE, "no redirect because of status code " + status);
+                        break;
+                }
+            }
+        } catch (MalformedInputException | UnmappableCharacterException e) {
+            logger.log(Level.WARNING, e.getMessage(), e);
+        }
+        return null;
+    }
+
+    public void setCookieBox(Map<Cookie, Boolean> cookieBox) {
+        this.cookieBox = cookieBox;
+    }
+
+    public Map<Cookie, Boolean> getCookieBox() {
+        return cookieBox;
+    }
+
+    public void addCookie(Cookie cookie) {
+        if (cookieBox == null) {
+            this.cookieBox = Collections.synchronizedMap(new LRUCache<Cookie, Boolean>(32));
+        }
+        cookieBox.put(cookie, true);
+    }
+
+    private List<Cookie> matchCookiesFromBox(Request request) {
+        return cookieBox == null ? Collections.emptyList() : cookieBox.keySet().stream().filter(cookie ->
+                matchCookie(request.base(), cookie)
+        ).collect(Collectors.toList());
+    }
+
+    private List<Cookie> matchCookies(Request request) {
+        return request.cookies().stream().filter(cookie ->
+                matchCookie(request.base(), cookie)
+        ).collect(Collectors.toList());
+    }
+
+    private boolean matchCookie(URL url, Cookie cookie) {
+        boolean domainMatch = cookie.domain() == null || url.getHost().endsWith(cookie.domain());
+        if (!domainMatch) {
+            return false;
+        }
+        boolean pathMatch = "/".equals(cookie.path()) || url.getPath().startsWith(cookie.path());
+        if (!pathMatch) {
+            return false;
+        }
+        boolean secureScheme = "https".equals(url.getScheme());
+        return (secureScheme && cookie.isSecure()) || (!secureScheme && !cookie.isSecure());
+    }
+
+    class LRUCache<K, V> extends LinkedHashMap<K, V> {
+
+        private final int cacheSize;
+
+        LRUCache(int cacheSize) {
+            super(16, 0.75f, true);
+            this.cacheSize = cacheSize;
+        }
+
+        protected boolean removeEldestEntry(Map.Entry<K, V> eldest) {
+            return size() >= cacheSize;
+        }
+    }
+}

src/main/java/org/xbib/netty/http/client/transport/Http2Transport.java

@@ -0,0 +1,166 @@
+package org.xbib.netty.http.client.transport;
+
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpHeaderNames;
+import io.netty.handler.codec.http.HttpHeaders;
+import io.netty.handler.codec.http.cookie.ClientCookieDecoder;
+import io.netty.handler.codec.http.cookie.Cookie;
+import io.netty.handler.codec.http2.Http2Settings;
+import org.xbib.net.URLSyntaxException;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.HttpAddress;
+import org.xbib.netty.http.client.Request;
+
+import java.util.SortedMap;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentSkipListMap;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class Http2Transport extends BaseTransport implements Transport {
+
+    private static final Logger logger = Logger.getLogger(Http2Transport.class.getName());
+
+    private CompletableFuture<Boolean> settingsPromise;
+
+    private final AtomicInteger streamIdCounter;
+
+    private SortedMap<Integer, CompletableFuture<Boolean>> streamidPromiseMap;
+
+    public Http2Transport(Client client, HttpAddress httpAddress) {
+        super(client, httpAddress);
+        streamIdCounter = new AtomicInteger(3);
+        streamidPromiseMap = new ConcurrentSkipListMap<>();
+    }
+
+    @Override
+    public void connect() throws InterruptedException {
+        super.connect();
+        settingsPromise = new CompletableFuture<>();
+    }
+
+    @Override
+    public Integer nextStream() {
+        Integer streamId = streamIdCounter.getAndAdd(2);
+        if (streamId == Integer.MIN_VALUE) {
+            // reset if overflow, Java wraps atomic integers to Integer.MIN_VALUE
+            streamIdCounter.set(3);
+            streamId = 3;
+        }
+        streamidPromiseMap.put(streamId, new CompletableFuture<>());
+        return streamId;
+    }
+
+    @Override
+    public void settingsReceived(Channel channel, Http2Settings http2Settings) {
+        if (settingsPromise != null) {
+            settingsPromise.complete(true);
+        } else {
+            logger.log(Level.WARNING, "settings received but no promise present");
+        }
+    }
+
+    @Override
+    public void awaitSettings() {
+        if (settingsPromise != null) {
+            try {
+                settingsPromise.get(client.getTimeout(), TimeUnit.MILLISECONDS);
+            } catch (InterruptedException | ExecutionException | TimeoutException e) {
+                settingsPromise.completeExceptionally(e);
+            }
+        } else {
+            logger.log(Level.WARNING, "waiting for settings but no promise present");
+        }
+    }
+
+    @Override
+    public void responseReceived(Integer streamId, FullHttpResponse fullHttpResponse) {
+        if (streamId == null) {
+            logger.log(Level.WARNING, "unexpected message received: " + fullHttpResponse);
+            return;
+        }
+        CompletableFuture<Boolean> promise = streamidPromiseMap.get(streamId);
+        if (promise == null) {
+            logger.log(Level.WARNING, "message received for unknown stream id " + streamId);
+            if (pushListener != null) {
+                pushListener.onPushReceived(null, fullHttpResponse);
+            }
+        } else {
+            if (responseListener != null) {
+                responseListener.onResponse(fullHttpResponse);
+            }
+            // forward?
+            try {
+                Request request = continuation(streamId, fullHttpResponse);
+                if (request != null) {
+                    // synchronous call here
+                    client.continuation(this, request);
+                }
+            } catch (URLSyntaxException e) {
+                logger.log(Level.WARNING, e.getMessage(), e);
+            }
+            // complete origin transport
+            promise.complete(true);
+        }
+    }
+
+    @Override
+    public void headersReceived(Integer streamId, HttpHeaders httpHeaders) {
+        if (httpHeadersListener != null) {
+            httpHeadersListener.onHeaders(httpHeaders);
+        }
+        if (cookieListener != null) {
+            for (String cookieString : httpHeaders.getAll(HttpHeaderNames.SET_COOKIE)) {
+                Cookie cookie = ClientCookieDecoder.STRICT.decode(cookieString);
+                cookieListener.onCookie(cookie);
+            }
+        }
+    }
+
+    @Override
+    public void awaitResponse(Integer streamId) {
+        if (streamId == null) {
+            return;
+        }
+        CompletableFuture<Boolean> promise = streamidPromiseMap.get(streamId);
+        if (promise != null) {
+            try {
+                promise.get(client.getTimeout(), TimeUnit.MILLISECONDS);
+            } catch (InterruptedException | ExecutionException | TimeoutException e) {
+                logger.log(Level.WARNING, "streamId=" + streamId + " " + e.getMessage(), e);
+            } finally {
+                streamidPromiseMap.remove(streamId);
+            }
+        }
+    }
+
+    @Override
+    public Transport get() {
+        for (Integer streamId : streamidPromiseMap.keySet()) {
+            awaitResponse(streamId);
+        }
+        return this;
+    }
+
+    @Override
+    public  void success() {
+        for (CompletableFuture<Boolean> promise : streamidPromiseMap.values()) {
+            promise.complete(true);
+        }
+    }
+
+    @Override
+    public void fail(Throwable throwable) {
+        if (exceptionListener != null) {
+            exceptionListener.onException(throwable);
+        }
+        for (CompletableFuture<Boolean> promise : streamidPromiseMap.values()) {
+            promise.completeExceptionally(throwable);
+        }
+    }
+}

src/main/java/org/xbib/netty/http/client/transport/HttpTransport.java

@@ -0,0 +1,135 @@
+package org.xbib.netty.http.client.transport;
+
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpHeaderNames;
+import io.netty.handler.codec.http.HttpHeaders;
+import io.netty.handler.codec.http.cookie.ClientCookieDecoder;
+import io.netty.handler.codec.http.cookie.Cookie;
+import io.netty.handler.codec.http2.Http2Settings;
+import org.xbib.net.URLSyntaxException;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.HttpAddress;
+import org.xbib.netty.http.client.Request;
+
+import java.util.SortedMap;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentSkipListMap;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class HttpTransport extends BaseTransport implements Transport {
+
+    private static final Logger logger = Logger.getLogger(HttpTransport.class.getName());
+
+    private final AtomicInteger sequentialCounter;
+
+    private SortedMap<Integer, CompletableFuture<Boolean>> sequentialPromiseMap;
+
+    public HttpTransport(Client client, HttpAddress httpAddress) {
+        super(client, httpAddress);
+        this.sequentialCounter = new AtomicInteger();
+        this.sequentialPromiseMap = new ConcurrentSkipListMap<>();
+    }
+
+    @Override
+    public Integer nextStream() {
+        Integer streamId = sequentialCounter.getAndAdd(1);
+        if (streamId == Integer.MIN_VALUE) {
+            // reset if overflow, Java wraps atomic integers to Integer.MIN_VALUE
+            sequentialCounter.set(0);
+            streamId = 0;
+        }
+        sequentialPromiseMap.put(streamId, new CompletableFuture<>());
+        return streamId;
+    }
+
+    @Override
+    public void settingsReceived(Channel channel, Http2Settings http2Settings) {
+    }
+
+    @Override
+    public void awaitSettings() {
+    }
+
+    @Override
+    public void responseReceived(Integer streamId, FullHttpResponse fullHttpResponse) {
+        if (responseListener != null) {
+            responseListener.onResponse(fullHttpResponse);
+        }
+        try {
+            Request request = continuation(null, fullHttpResponse);
+            if (request != null) {
+                client.continuation(this, request);
+            }
+        } catch (URLSyntaxException e) {
+            logger.log(Level.WARNING, e.getMessage(), e);
+        }
+        if (!sequentialPromiseMap.isEmpty()) {
+            CompletableFuture<Boolean> promise = sequentialPromiseMap.get(sequentialPromiseMap.firstKey());
+            if (promise != null) {
+                promise.complete(true);
+            }
+        }
+    }
+
+    @Override
+    public void headersReceived(Integer streamId, HttpHeaders httpHeaders) {
+        if (httpHeadersListener != null) {
+            httpHeadersListener.onHeaders(httpHeaders);
+        }
+        for (String cookieString : httpHeaders.getAll(HttpHeaderNames.SET_COOKIE)) {
+            Cookie cookie = ClientCookieDecoder.STRICT.decode(cookieString);
+            addCookie(cookie);
+            if (cookieListener != null) {
+                cookieListener.onCookie(cookie);
+            }
+        }
+    }
+
+    @Override
+    public void awaitResponse(Integer streamId) {
+        if (streamId == null) {
+            return;
+        }
+        CompletableFuture<Boolean> promise = sequentialPromiseMap.get(streamId);
+        if (promise != null) {
+            try {
+                promise.get(client.getTimeout(), TimeUnit.MILLISECONDS);
+            } catch (InterruptedException | ExecutionException | TimeoutException e) {
+                logger.log(Level.WARNING, "streamId=" + streamId + " " + e.getMessage(), e);
+            } finally {
+                sequentialPromiseMap.remove(streamId);
+            }
+        }
+    }
+
+    @Override
+    public Transport get() {
+        for (Integer streamId : sequentialPromiseMap.keySet()) {
+            awaitResponse(streamId);
+        }
+        return this;
+    }
+
+    @Override
+    public  void success() {
+        for (CompletableFuture<Boolean> promise : sequentialPromiseMap.values()) {
+            promise.complete(true);
+        }
+    }
+
+    @Override
+    public void fail(Throwable throwable) {
+        if (exceptionListener != null) {
+            exceptionListener.onException(throwable);
+        }
+        for (CompletableFuture<Boolean> promise : sequentialPromiseMap.values()) {
+            promise.completeExceptionally(throwable);
+        }
+    }
+}

src/main/java/org/xbib/netty/http/client/transport/Transport.java

@@ -0,0 +1,78 @@
+package org.xbib.netty.http.client.transport;
+
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpHeaders;
+import io.netty.handler.codec.http.cookie.Cookie;
+import io.netty.handler.codec.http2.Http2Settings;
+import io.netty.util.AttributeKey;
+import org.xbib.netty.http.client.HttpAddress;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.listener.CookieListener;
+import org.xbib.netty.http.client.listener.ExceptionListener;
+import org.xbib.netty.http.client.listener.HttpHeadersListener;
+import org.xbib.netty.http.client.listener.HttpPushListener;
+import org.xbib.netty.http.client.listener.HttpResponseListener;
+
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.Function;
+
+public interface Transport {
+
+    AttributeKey<Transport> TRANSPORT_ATTRIBUTE_KEY = AttributeKey.valueOf("transport");
+
+    HttpAddress httpAddress();
+
+    void connect() throws InterruptedException;
+
+    Transport execute(Request request);
+
+    <T> CompletableFuture<T> execute(Request request, Function<FullHttpResponse, T> supplier);
+
+    Channel channel();
+
+    Integer nextStream();
+
+    void settingsReceived(Channel channel, Http2Settings http2Settings);
+
+    void awaitSettings();
+
+    void setResponseListener(HttpResponseListener responseListener);
+
+    HttpResponseListener getResponseListener();
+
+    void setExceptionListener(ExceptionListener exceptionListener);
+
+    ExceptionListener getExceptionListener();
+
+    void setHeadersListener(HttpHeadersListener headersListener);
+
+    HttpHeadersListener getHeadersListener();
+
+    void setPushListener(HttpPushListener pushListener);
+
+    HttpPushListener getPushListener();
+
+    void setCookieListener(CookieListener cookieListener);
+
+    CookieListener getCookieListener();
+
+    void setCookieBox(Map<Cookie, Boolean> cookieBox);
+
+    Map<Cookie, Boolean> getCookieBox();
+
+    void responseReceived(Integer streamId, FullHttpResponse fullHttpResponse);
+
+    void headersReceived(Integer streamId, HttpHeaders httpHeaders);
+
+    void awaitResponse(Integer streamId);
+
+    Transport get();
+
+    void success();
+
+    void fail(Throwable throwable);
+
+    void close();
+}

src/main/java/org/xbib/netty/http/client/transport/package-info.java

@@ -0,0 +1,4 @@
+/**
+ * Classes for transports in the Netty client.
+ */
+package org.xbib.netty.http.client.transport;

src/main/java/org/xbib/netty/http/client/util/AbstractFuture.java

@@ -1,353 +0,0 @@
-package org.xbib.netty.http.client.util;
-
-import java.util.concurrent.CancellationException;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-import java.util.concurrent.locks.AbstractQueuedSynchronizer;
-
-/**
- * <p>
- * An abstract implementation of the {@link Future} interface.  This class
- * is an abstraction of {@link java.util.concurrent.FutureTask} to support use
- * for tasks other than {@link Runnable}s.  It uses an
- * {@link AbstractQueuedSynchronizer} to deal with concurrency issues and
- * guarantee thread safety.  It could be used as a base class to
- * {@code FutureTask}, or any other implementor of the {@code Future} interface.
- * </p>
- *
- * <p>
- * This class implements all methods in {@code Future}.  Subclasses should
- * provide a way to set the result of the computation through the protected
- * methods {@link #set(Object)}, {@link #setException(Exception)}, or
- * {@link #cancel()}.  If subclasses want to implement cancellation they can
- * override the {@link #cancel(boolean)} method with a real implementation, the
- * default implementation doesn't support cancellation.
- * </p>
- *
- * <p>
- * The state changing methods all return a boolean indicating success or
- * failure in changing the future's state.  Valid states are running,
- * completed, failed, or cancelled.  Because this class does not implement
- * cancellation it is left to the subclass to distinguish between created
- * and running tasks.
- * </p>
- *
- * <p>This class is taken from the Google Guava project.</p>
- *
- * @param <V> the future value parameter type
- */
-public abstract class AbstractFuture<V> implements Future<V> {
-
-    /**
-     * Synchronization control.
-     */
-    private final Sync<V> sync = new Sync<>();
-
-    /**
-     * The default {@link AbstractFuture} implementation throws {@code
-     * InterruptedException} if the current thread is interrupted before or during
-     * the call, even if the value is already available.
-     *
-     * @throws InterruptedException  if the current thread was interrupted before
-     *                               or during the call (optional but recommended).
-     * @throws TimeoutException if operation timed out
-     * @throws ExecutionException if execution fails
-     */
-    @Override
-    public V get(long timeout, TimeUnit unit) throws InterruptedException,
-            TimeoutException, ExecutionException {
-        return sync.get(unit.toNanos(timeout));
-    }
-
-    /**
-     * The default {@link AbstractFuture} implementation throws {@code
-     * InterruptedException} if the current thread is interrupted before or during
-     * the call, even if the value is already available.
-     *
-     * @throws InterruptedException  if the current thread was interrupted before
-     *                               or during the call (optional but recommended).
-     * @throws ExecutionException if execution fails
-     */
-    @Override
-    public V get() throws InterruptedException, ExecutionException {
-        return sync.get();
-    }
-
-    /**
-     * Checks if the sync is not in the running state.
-     */
-    @Override
-    public boolean isDone() {
-        return sync.isDone();
-    }
-
-    /**
-     * Checks if the sync is in the cancelled state.
-     */
-    @Override
-    public boolean isCancelled() {
-        return sync.isCancelled();
-    }
-
-    public boolean isSucceeded() {
-        return sync.isSuccess();
-    }
-
-    public boolean isFailed() {
-        return sync.isFailed();
-    }
-
-    /**
-     * Default implementation of cancel that cancels the future.
-     */
-    @Override
-    public boolean cancel(boolean mayInterruptIfRunning) {
-        if (!sync.cancel()) {
-            return false;
-        }
-        done();
-        if (mayInterruptIfRunning) {
-            interruptTask();
-        }
-        return true;
-    }
-
-    /**
-     * Subclasses should invoke this method to set the result of the computation
-     * to {@code value}.  This will set the state of the future to
-     * {@link AbstractFuture.Sync#COMPLETED} and call {@link #done()} if the
-     * state was successfully changed.
-     *
-     * @param value the value that was the result of the task.
-     * @return true if the state was successfully changed.
-     */
-    protected boolean set(V value) {
-        boolean result = sync.set(value);
-        if (result) {
-            done();
-        }
-        return result;
-    }
-
-    /**
-     * Subclasses should invoke this method to set the result of the computation
-     * to an error, {@code throwable}.  This will set the state of the future to
-     * {@link AbstractFuture.Sync#COMPLETED} and call {@link #done()} if the
-     * state was successfully changed.
-     *
-     * @param exception the exception that the task failed with.
-     * @return true if the state was successfully changed.
-     */
-    protected boolean setException(Exception exception) {
-        boolean result = sync.setException(exception);
-        if (result) {
-            done();
-        }
-        return result;
-    }
-
-    /**
-     * Subclasses should invoke this method to mark the future as cancelled.
-     * This will set the state of the future to {@link
-     * AbstractFuture.Sync#CANCELLED} and call {@link #done()} if the state was
-     * successfully changed.
-     *
-     * @return true if the state was successfully changed.
-     */
-    protected final boolean cancel() {
-        boolean result = sync.cancel();
-        if (result) {
-            done();
-        }
-        return result;
-    }
-
-    /**
-     * Called by the success, failed, or cancelled methods to indicate that the
-     * value is now available and the latch can be released.  Subclasses can
-     * use this method to deal with any actions that should be undertaken when
-     * the task has completed.
-     */
-    protected void done() {
-    }
-
-    /**
-     * Subclasses can override this method to implement interruption of the
-     * future's computation. The method is invoked automatically by a successful
-     * call to {@link #cancel(boolean) cancel(true)}.
-     * The default implementation does nothing.
-     */
-    protected void interruptTask() {
-    }
-
-    /**
-     * <p>
-     * Following the contract of {@link AbstractQueuedSynchronizer} we create a
-     * private subclass to hold the synchronizer.  This synchronizer is used to
-     * implement the blocking and waiting calls as well as to handle state changes
-     * in a thread-safe manner.  The current state of the future is held in the
-     * Sync state, and the lock is released whenever the state changes to either
-     * {@link #COMPLETED} or {@link #CANCELLED}.
-     * </p>
-     * <p>
-     * To avoid races between threads doing release and acquire, we transition
-     * to the final state in two steps.  One thread will successfully CAS from
-     * RUNNING to COMPLETING, that thread will then set the result of the
-     * computation, and only then transition to COMPLETED or CANCELLED.
-     * </p>
-     * <p>
-     * We don't use the integer argument passed between acquire methods so we
-     * pass around a -1 everywhere.
-     * </p>
-     */
-    static final class Sync<V> extends AbstractQueuedSynchronizer {
-
-        private static final long serialVersionUID = -796072460488712821L;
-
-        static final int RUNNING = 0;
-        static final int COMPLETING = 1;
-        static final int COMPLETED = 2;
-        static final int CANCELLED = 4;
-
-        private V value;
-        private Exception exception;
-
-        /*
-        * Acquisition succeeds if the future is done, otherwise it fails.
-        */
-        @Override
-        protected int tryAcquireShared(int ignored) {
-            return isDone() ? 1 : -1;
-        }
-
-        /*
-        * We always allow a release to go through, this means the state has been
-        * successfully changed and the result is available.
-        */
-        @Override
-        protected boolean tryReleaseShared(int finalState) {
-            setState(finalState);
-            return true;
-        }
-
-        /**
-         * Blocks until the task is complete or the timeout expires.  Throws a
-         * {@link TimeoutException} if the timer expires, otherwise behaves like
-         * {@link #get()}.
-         */
-        V get(long nanos) throws TimeoutException, CancellationException,
-                ExecutionException, InterruptedException {
-            // Attempt to acquire the shared lock with a timeout.
-            if (!tryAcquireSharedNanos(-1, nanos)) {
-                throw new TimeoutException("Timeout waiting for task.");
-            }
-            return getValue();
-        }
-
-        /**
-         * Blocks until {@link #complete(Object, Exception, int)} has been
-         * successfully called.  Throws a {@link CancellationException} if the task
-         * was cancelled, or a {@link ExecutionException} if the task completed with
-         * an error.
-         */
-        V get() throws CancellationException, ExecutionException,
-                InterruptedException {
-            // Acquire the shared lock allowing interruption.
-            acquireSharedInterruptibly(-1);
-            return getValue();
-        }
-
-        /**
-         * Implementation of the actual value retrieval.  Will return the value
-         * on success, an exception on failure, a cancellation on cancellation, or
-         * an illegal state if the synchronizer is in an invalid state.
-         */
-        private V getValue() throws CancellationException, ExecutionException {
-            int state = getState();
-            switch (state) {
-                case COMPLETED:
-                    if (exception != null) {
-                        throw new ExecutionException(exception);
-                    } else {
-                        return value;
-                    }
-                case CANCELLED:
-                    throw new CancellationException("task was cancelled");
-                default:
-                    throw new IllegalStateException("error, synchronizer in invalid state: " + state);
-            }
-        }
-
-        /**
-         * Checks if the state is {@link #COMPLETED} or {@link #CANCELLED}.
-         */
-        boolean isDone() {
-            return (getState() & (COMPLETED | CANCELLED)) != 0;
-        }
-
-        /**
-         * Checks if the state is {@link #CANCELLED}.
-         */
-        boolean isCancelled() {
-            return getState() == CANCELLED;
-        }
-
-        boolean isSuccess() {
-            return value != null && getState() == COMPLETED;
-        }
-
-        boolean isFailed() {
-            return exception != null && getState() == COMPLETED;
-        }
-
-        /**
-         * Transition to the COMPLETED state and set the value.
-         */
-        boolean set(V v) {
-            return complete(v, null, COMPLETED);
-        }
-
-        /**
-         * Transition to the COMPLETED state and set the exception.
-         */
-        boolean setException(Exception exception) {
-            return complete(null, exception, COMPLETED);
-        }
-
-        /**
-         * Transition to the CANCELLED state.
-         */
-        boolean cancel() {
-            return complete(null, null, CANCELLED);
-        }
-
-        /**
-         * Implementation of completing a task.  Either {@code v} or {@code t} will
-         * be set but not both.  The {@code finalState} is the state to change to
-         * from {@link #RUNNING}.  If the state is not in the RUNNING state we
-         * return {@code false} after waiting for the state to be set to a valid
-         * final state ({@link #COMPLETED} or {@link #CANCELLED}).
-         *
-         * @param v the value to set as the result of the computation.
-         * @param exception the exception to set as the result of the computation.
-         * @param finalState the state to transition to.
-         */
-        private boolean complete(V v, Exception exception, int finalState) {
-            boolean doCompletion = compareAndSetState(RUNNING, COMPLETING);
-            if (doCompletion) {
-                // If this thread successfully transitioned to COMPLETING, set the value
-                // and exception and then release to the final state.
-                this.value = v;
-                this.exception = exception;
-                releaseShared(finalState);
-            } else if (getState() == COMPLETING) {
-                // If some other thread is currently completing the future, block until
-                // they are done so we can guarantee completion.
-                acquireShared(-1);
-            }
-            return doCompletion;
-        }
-    }
-}

src/main/java/org/xbib/netty/http/client/util/ClientAuthMode.java

@@ -1,23 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.util;
-
-/**
- * Client authentication modes, useful for SSL channels.
- */
-public enum ClientAuthMode {
-    NONE, WANT, NEED
-}

src/main/java/org/xbib/netty/http/client/util/InetAddressKey.java

@@ -1,76 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.util;
-
-import io.netty.handler.codec.http.HttpVersion;
-
-import java.net.InetSocketAddress;
-
-/**
- * A key for host, port, HTTP version, and secure transport mode of a channel for HTTP.
- */
-public class InetAddressKey {
-
-    private final String host;
-
-    private final int port;
-
-    private final HttpVersion version;
-
-    private final Boolean secure;
-
-    private InetSocketAddress inetSocketAddress;
-
-    public InetAddressKey(String host, int port, HttpVersion version, boolean secure) {
-        this.host = host;
-        this.port = port == -1 ? secure ? 443 : 80 : port;
-        this.version = version;
-        this.secure = secure;
-    }
-
-    public InetSocketAddress getInetSocketAddress() {
-        if (inetSocketAddress == null) {
-            this.inetSocketAddress = new InetSocketAddress(host, port);
-        }
-        return inetSocketAddress;
-    }
-
-    public HttpVersion getVersion() {
-        return version;
-    }
-
-    public boolean isSecure() {
-        return secure;
-    }
-
-    public String toString() {
-        return host + ":" + port + " (version:" + version + ",secure:" + secure + ")";
-    }
-
-    @Override
-    public boolean equals(Object object) {
-        return object instanceof InetAddressKey &&
-                host.equals(((InetAddressKey) object).host) &&
-                port == ((InetAddressKey) object).port &&
-                version.equals(((InetAddressKey) object).version) &&
-                secure.equals(((InetAddressKey) object).secure);
-    }
-
-    @Override
-    public int hashCode() {
-        return host.hashCode() ^ port ^ version.hashCode() ^ secure.hashCode();
-    }
-}

src/main/java/org/xbib/netty/http/client/util/LimitedHashSet.java

@@ -1,54 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.util;
-
-import java.util.Collection;
-import java.util.LinkedHashSet;
-
-/**
- * A {@link java.util.Set} with limited size. If the size is exceeded, an exception is thrown.
- * @param <E> the element type
- */
-public final class LimitedHashSet<E> extends LinkedHashSet<E> {
-
-    private static final long serialVersionUID = 1838128758142912702L;
-
-    private final int max;
-
-    public LimitedHashSet(int max) {
-        this.max = max;
-    }
-
-    @Override
-    public boolean add(E element) {
-        if (max < size()) {
-            throw new IllegalStateException("limit exceeded");
-        }
-        return super.add(element);
-    }
-
-    @Override
-    public boolean addAll(Collection<? extends E> elements) {
-        boolean b = false;
-        for (E element : elements) {
-            if (max < size()) {
-                throw new IllegalStateException("limit exceeded");
-            }
-            b = b || super.add(element);
-        }
-        return b;
-    }
-}

src/main/java/org/xbib/netty/http/client/util/NetworkClass.java

@@ -1,18 +1,3 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.util;
 
 /**

src/main/java/org/xbib/netty/http/client/util/NetworkProtocolVersion.java

@@ -1,18 +1,3 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.util;
 
 /**

src/main/java/org/xbib/netty/http/client/util/NetworkUtils.java

@@ -1,18 +1,3 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.util;
 
 import java.io.IOException;

src/test/java/org/xbib/netty/http/client/test/AkamaiTest.java

@@ -1,58 +1,54 @@
 package org.xbib.netty.http.client.test;
 
+import org.junit.Ignore;
 import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.test.LoggingBase;
 
 import java.nio.charset.StandardCharsets;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
 import java.util.logging.Level;
-import java.util.logging.LogManager;
 import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
 
-/**
- */
-public class AkamaiTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
+@Ignore
+public class AkamaiTest extends LoggingBase {
 
     private static final Logger logger = Logger.getLogger("");
 
+    /**
+     * 2018-02-27 23:43:32.048 INFORMATION [client] io.netty.handler.codec.http2.Http2FrameLogger
+     * logRstStream [id: 0x4fe29f1e, L:/192.168.178.23:49429 - R:http2.akamai.com/104.94.191.203:443]
+     * INBOUND RST_STREAM: streamId=2 errorCode=8
+     * 2018-02-27 23:43:32.049 SCHWERWIEGEND [] org.xbib.netty.http.client.test.a.AkamaiTest lambda$testAkamaiHttps$0
+     * HTTP/2 to HTTP layer caught stream reset
+     * io.netty.handler.codec.http2.Http2Exception$StreamException: HTTP/2 to HTTP layer caught stream reset
+     */
     @Test
-    public void testAkamaiHttps() throws Exception {
-        HttpClient httpClient = HttpClient.getInstance();
-        httpClient.prepareGet("https://http2.akamai.com/demo/h2_demo_frame.html")
-                .setHttp2()
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status()
-                            + " response body = " + response);
-                })
-                .onPushReceived((requestHeaders, fullHttpResponse) -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "received push: request headers = " + requestHeaders
-                            + " status = " + fullHttpResponse.status()
-                            + " response headers = " + fullHttpResponse.headers().entries()
-                            + " response body = " + response
-                    );
-                })
-                .execute()
-                .get();
-        httpClient.close();
+    public void testAkamaiHttps() {
+        Client client = new Client();
+        try {
+            Request request = Request.get()
+                    //.setURL("https://http2.akamai.com/demo/h2_demo_frame.html")
+                    .setURL("https://http2.akamai.com/")
+                    .setVersion("HTTP/2.0")
+                    .build()
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e))
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status()
+                                + " response body = " + response);
+                    })
+                    .setPushListener((requestHeaders, fullHttpResponse) -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "received push: request headers = " + requestHeaders
+                                + " status = " + fullHttpResponse.status()
+                                + " response headers = " + fullHttpResponse.headers().entries()
+                                + " response body = " + response
+                        );
+                    });
+            client.execute(request).get();
+        } finally {
+            client.shutdownGracefully();
+        }
     }
 }

src/test/java/org/xbib/netty/http/client/test/ClientTest.java

@@ -0,0 +1,184 @@
+package org.xbib.netty.http.client.test;
+
+import io.netty.handler.codec.http.HttpMethod;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.HttpAddress;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.transport.Transport;
+
+import java.nio.charset.StandardCharsets;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class ClientTest {
+
+    private static final Logger logger = Logger.getLogger(ClientTest.class.getName());
+
+    @Test
+    @Ignore
+    public void testHttp1() throws Exception {
+        Client client = new Client();
+        try {
+            Transport transport = client.newTransport(HttpAddress.http1("fl.hbz-nrw.de"));
+            transport.setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                    msg.headers().entries() +
+                    msg.content().toString(StandardCharsets.UTF_8) +
+                    " status=" + msg.status().code()));
+            transport.connect();
+            transport.awaitSettings();
+            simpleRequest(transport);
+            transport.get();
+            transport.close();
+        } finally {
+            client.shutdown();
+        }
+    }
+
+    @Test
+    @Ignore
+    public void testHttp1ParallelRequests() {
+        Client client = new Client();
+        try {
+            Request request1 = Request.builder(HttpMethod.GET)
+                    .setURL("http://fl.hbz-nrw.de").setVersion("HTTP/1.1")
+                    .build()
+                    .setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                            msg.headers().entries() +
+                            //msg.content().toString(StandardCharsets.UTF_8) +
+                            " status=" + msg.status().code()));
+            Request request2 = Request.builder(HttpMethod.GET)
+                    .setURL("http://fl.hbz-nrw.de/app/fl/").setVersion("HTTP/1.1")
+                    .build()
+                    .setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                            msg.headers().entries() +
+                            //msg.content().toString(StandardCharsets.UTF_8) +
+                            " status=" + msg.status().code()));
+
+            client.execute(request1);
+            client.execute(request2);
+
+        } finally {
+            client.shutdownGracefully();
+        }
+    }
+
+    @Test
+    @Ignore
+    public void testHttp2() throws Exception {
+        String host = "webtide.com";
+        Client client = new Client();
+        client.logDiagnostics(Level.INFO);
+        try {
+            Transport transport = client.newTransport(HttpAddress.http2(host));
+            transport.setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                    msg.headers().entries() +
+                    msg.content().toString(StandardCharsets.UTF_8) +
+                    " status=" + msg.status().code()));
+            transport.setPushListener((hdrs, msg) -> logger.log(Level.INFO, "got push: " +
+                    msg.headers().entries() +
+                    msg.content().toString(StandardCharsets.UTF_8)));
+            transport.connect();
+            transport.awaitSettings();
+            simpleRequest(transport);
+            transport.get();
+            transport.close();
+        } finally {
+            client.shutdown();
+        }
+    }
+
+    @Test
+    public void testHttp2Request() {
+        //String url = "https://webtide.com";
+        String url = "https://http2-push.io";
+        // TODO register push announces into promises in order to wait for them all.
+        Client client = new Client();
+        try {
+            Request request = Request.builder(HttpMethod.GET)
+                    .setURL(url).setVersion("HTTP/2.0")
+                    .build()
+                    .setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                            msg.headers().entries() +
+                            msg.content().toString(StandardCharsets.UTF_8) +
+                            " status=" + msg.status().code()))
+                    .setPushListener((hdrs, msg) -> logger.log(Level.INFO, "got push: " +
+                                    msg.headers().entries() +
+                            msg.content().toString(StandardCharsets.UTF_8))
+                    );
+            client.execute(request).get();
+
+        } finally {
+            client.shutdownGracefully();
+        }
+    }
+
+    @Test
+    @Ignore
+    public void testHttp2TwoRequestsOnSameConnection() {
+        Client client = new Client();
+        try {
+            Request request1 = Request.builder(HttpMethod.GET)
+                    .setURL("https://webtide.com").setVersion("HTTP/2.0")
+                    .build()
+                    .setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                            msg.headers().entries() +
+                            //msg.content().toString(StandardCharsets.UTF_8) +
+                            " status=" + msg.status().code()))
+                    .setPushListener((hdrs, msg) -> logger.log(Level.INFO, "got push: " +
+                            msg.headers().entries()
+                            //msg.content().toString(StandardCharsets.UTF_8))
+                            ));
+
+            Request request2 = Request.builder(HttpMethod.GET)
+                    .setURL("https://webtide.com/why-choose-jetty/").setVersion("HTTP/2.0")
+                    .build()
+                    .setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                            msg.headers().entries() +
+                            //msg.content().toString(StandardCharsets.UTF_8) +
+                            " status=" + msg.status().code()))
+                    .setPushListener((hdrs, msg) -> logger.log(Level.INFO, "got push: " +
+                            msg.headers().entries() +
+                            //msg.content().toString(StandardCharsets.UTF_8) +
+                            " status=" + msg.status().code()));
+
+            client.execute(request1).execute(request2);
+
+        } finally {
+            client.shutdownGracefully();
+        }
+    }
+
+    @Test
+    @Ignore
+    public void testMixed() throws Exception {
+        Client client = new Client();
+        try {
+            Transport transport = client.newTransport(HttpAddress.http1("xbib.org"));
+            transport.setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                    msg.content().toString(StandardCharsets.UTF_8)));
+            transport.connect();
+            transport.awaitSettings();
+            simpleRequest(transport);
+            transport.get();
+            transport.close();
+
+            transport = client.newTransport(HttpAddress.http2("google.com"));
+            transport.setResponseListener(msg -> logger.log(Level.INFO, "got response: " +
+                    msg.content().toString(StandardCharsets.UTF_8)));
+            transport.connect();
+            transport.awaitSettings();
+            simpleRequest(transport);
+            transport.get();
+            transport.close();
+        } finally {
+            client.shutdown();
+        }
+    }
+
+    private void simpleRequest(Transport transport) {
+        transport.execute(Request.builder(HttpMethod.GET).setURL(transport.httpAddress().base()).build());
+    }
+
+}

src/test/java/org/xbib/netty/http/client/test/CompletableFutureTest.java

@@ -0,0 +1,46 @@
+package org.xbib.netty.http.client.test;
+
+import io.netty.handler.codec.http.FullHttpResponse;
+import org.junit.Test;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.Request;
+
+import java.nio.charset.StandardCharsets;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.Function;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class CompletableFutureTest {
+
+    private static final Logger logger = Logger.getLogger(ElasticsearchTest.class.getName());
+
+    /**
+     * Get some weird content from one URL and post it to another URL, by composing completable futures.
+     */
+    @Test
+    public void testComposeCompletableFutures() {
+        Client client = new Client();
+        try {
+            final Function<FullHttpResponse, String> httpResponseStringFunction = response ->
+                    response.content().toString(StandardCharsets.UTF_8);
+            Request request = Request.get()
+                    .setURL("http://alkmene.hbz-nrw.de/repository/org/xbib/content/2.0.0-SNAPSHOT/maven-metadata-local.xml")
+                    .build();
+            CompletableFuture<String> completableFuture = client.execute(request, httpResponseStringFunction)
+                    .exceptionally(Throwable::getMessage)
+                    .thenCompose(content -> {
+                        logger.log(Level.INFO, content);
+                        // POST is not allowed, we don't care
+                        return client.execute(Request.post()
+                                .setURL("http://google.com/")
+                                .addParam("query", content)
+                                .build(), httpResponseStringFunction);
+                    });
+            String result = completableFuture.join();
+            logger.log(Level.INFO, "completablefuture result = " + result);
+        } finally {
+            client.shutdownGracefully();
+        }
+    }
+}

src/test/java/org/xbib/netty/http/client/test/ElasticsearchTest.java

@@ -1,144 +1,93 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.test;
 
+import org.junit.Ignore;
 import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
-import org.xbib.netty.http.client.HttpRequestBuilder;
-import org.xbib.netty.http.client.HttpRequestContext;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.transport.Transport;
 
-import java.io.IOException;
-import java.net.ConnectException;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.logging.Level;
-import java.util.logging.LogManager;
 import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
 
-import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertEquals;
 
-/**
- */
-public class ElasticsearchTest {
+@Ignore
+public class ElasticsearchTest extends LoggingBase {
 
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.INFO);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.INFO);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
+    private static final Logger logger = Logger.getLogger(ElasticsearchTest.class.getName());
 
     @Test
-    public void testElasticsearchCreateDocument() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
+    public void testElasticsearchCreateDocument() {
+        Client client = new Client();
         try {
-            HttpRequestContext requestContext = httpClient.preparePut()
-                .setURL("http://localhost:9200/test/test/1")
-                .json("{\"text\":\"Hello World\"}")
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .execute()
-                .get();
-            logger.log(Level.FINE, "took = " + requestContext.took());
-        } catch (Exception exception) {
-            assertTrue(exception.getCause() instanceof ConnectException);
-            logger.log(Level.INFO, "got expected exception");
+            Request request = Request.put().setURL("http://localhost:9200/test/test/1")
+                    .json("{\"text\":\"Hello World\"}")
+                    .build()
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    })
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e));
+            client.execute(request);
+        } finally {
+            client.shutdownGracefully();
         }
-        httpClient.close();
     }
 
     @Test
-    public void testElasticsearchMatchQuery() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
+    public void testElasticsearchMatchQuery() {
+        Client client = new Client();
         try {
-            HttpRequestContext requestContext = httpClient.preparePost()
-                .setURL("http://localhost:9200/test/_search")
-                .json("{\"query\":{\"match\":{\"_all\":\"Hello World\"}}}")
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .execute()
-                .get();
-            logger.log(Level.FINE, "took = " + requestContext.took());
-        } catch (Exception exception) {
-            assertTrue(exception.getCause() instanceof ConnectException);
-            logger.log(Level.INFO, "got expected exception");
+            Request request = Request.post().setURL("http://localhost:9200/test/_search")
+                    .json("{\"query\":{\"match\":{\"text\":\"Hello World\"}}}")
+                    .build()
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    })
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e));
+            client.execute(request).get();
+        } finally {
+            client.shutdownGracefully();
         }
-        httpClient.close();
     }
 
     @Test
-    public void testElasticsearchConcurrent() throws Exception {
-        int max = 100;
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        List<HttpRequestBuilder> queries = new ArrayList<>();
-        for (int i = 0; i < max; i++) {
-            queries.add(createQuery(httpClient));
-        }
-        List<HttpRequestContext> contexts = new ArrayList<>();
-        for (int i = 0; i < max; i++) {
-            contexts.add(queries.get(i).execute());
-        }
-        List<HttpRequestContext> responses = new ArrayList<>();
-        for (int i = 0; i < max; i++) {
-            try {
-                responses.add(contexts.get(i).get());
-            } catch (Exception exception) {
-                assertTrue(exception.getCause() instanceof ConnectException);
-                logger.log(Level.INFO, "got expected exception");
+    public void testElasticsearchConcurrent() {
+        Client client = Client.builder().setReadTimeoutMillis(20000).build();
+        int max = 1000;
+        try {
+            List<Request> queries = new ArrayList<>();
+            for (int i = 0; i < max; i++) {
+                queries.add(newRequest());
             }
+            Transport transport = client.execute(queries.get(0)).get();
+            for (int i = 1; i < max; i++) {
+                transport.execute(queries.get(i)).get();
+            }
+        } finally {
+            client.shutdownGracefully();
+            logger.log(Level.INFO, "count=" + count);
         }
-        for (int i = 0; i < responses.size(); i++) {
-            logger.log(Level.FINE, "took = " + responses.get(i).took());
-        }
-        httpClient.close();
-        logger.log(Level.INFO, "pool peak = " + httpClient.poolMap().getHttpClientChannelPoolHandler().getPeak());
+        assertEquals(max, count.get());
     }
 
-    private HttpRequestBuilder createQuery(HttpClient httpClient) throws IOException {
-        return httpClient.preparePost()
+    private Request newRequest() {
+        return Request.post()
                 .setURL("http://localhost:9200/test/_search")
-                .json("{\"query\":{\"match\":{\"_all\":\"Hello World\"}}}")
+                .json("{\"query\":{\"match\":{\"text\":\"Hello World\"}}}")
                 .addHeader("connection", "keep-alive")
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e));
+                .build()
+                .setResponseListener(fullHttpResponse ->
+                    logger.log(Level.FINE, "status = " + fullHttpResponse.status() +
+                            " counter = " + count.incrementAndGet() +
+                            " response body = " + fullHttpResponse.content().toString(StandardCharsets.UTF_8)))
+                .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e));
     }
+
+    private final AtomicInteger count = new AtomicInteger();
 }

src/test/java/org/xbib/netty/http/client/test/ExceptionTest.java

@@ -1,76 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.test;
-
-import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
-
-import java.net.ConnectException;
-import java.nio.charset.StandardCharsets;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
-import java.util.logging.Level;
-import java.util.logging.LogManager;
-import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
-
-import static org.junit.Assert.assertTrue;
-
-/**
- */
-public class ExceptionTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
-
-    @Test
-    public void testConnectionRefused() throws Exception {
-
-        // this basically tests if the connection refuse terminates.
-
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        try {
-            httpClient.prepareGet()
-                    .setURL("http://localhost:1234")
-                    .onResponse(fullHttpResponse -> {
-                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                    })
-                    .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                    .execute()
-                    .get();
-        } catch (Exception exception) {
-            assertTrue(exception.getCause() instanceof ConnectException);
-            logger.log(Level.INFO, "got expected exception");
-        }
-        httpClient.close();
-    }
-}

src/test/java/org/xbib/netty/http/client/test/GoogleTest.java

@@ -1,136 +0,0 @@
-package org.xbib.netty.http.client.test;
-
-import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
-import org.xbib.netty.http.client.HttpRequestBuilder;
-import org.xbib.netty.http.client.HttpRequestContext;
-
-import java.nio.charset.StandardCharsets;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
-import java.util.logging.Level;
-import java.util.logging.LogManager;
-import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
-
-/**
- */
-public class GoogleTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
-
-    @Test
-    public void testGoogleHttp1() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setURL("http://www.google.com")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onHeaders(headers -> logger.log(Level.INFO, headers.toString()))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-
-
-    public void testGoogleWithoutFollowRedirects() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setURL("http://google.com")
-                .setFollowRedirect(false)
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        logger.log(Level.INFO, "pool size = " + httpClient.poolMap().size());
-        httpClient.close();
-    }
-
-
-    @Test
-    public void testGoogleHttps1() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setURL("https://www.google.com")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-
-    @Test
-    public void testGoogleHttp2() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-
-        httpClient.prepareGet()
-                .setVersion("HTTP/2.0")
-                .setURL("https://www.google.com")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-
-    @Test
-    public void testGoogleHttpTwo() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-
-        HttpRequestBuilder builder1 = httpClient.prepareGet()
-                .setVersion("HTTP/2.0")
-                .setURL("https://www.google.com")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                });
-
-        HttpRequestBuilder builder2 = httpClient.prepareGet()
-                .setVersion("HTTP/2.0")
-                .setURL("https://www.google.com")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                });
-
-        HttpRequestContext context1 = builder1.execute();
-        HttpRequestContext context2 = builder2.execute();
-        context1.get();
-        context2.get();
-
-        httpClient.close();
-    }
-}

src/test/java/org/xbib/netty/http/client/test/Http2FrameAdapterTest.java

@@ -1,171 +0,0 @@
-package org.xbib.netty.http.client.test;
-
-import io.netty.bootstrap.Bootstrap;
-import io.netty.buffer.ByteBuf;
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.ChannelInitializer;
-import io.netty.channel.ChannelPromise;
-import io.netty.channel.EventLoopGroup;
-import io.netty.channel.nio.NioEventLoopGroup;
-import io.netty.channel.socket.nio.NioSocketChannel;
-import io.netty.handler.codec.http.HttpMethod;
-import io.netty.handler.codec.http2.DefaultHttp2Headers;
-import io.netty.handler.codec.http2.Http2ConnectionHandler;
-import io.netty.handler.codec.http2.Http2ConnectionHandlerBuilder;
-import io.netty.handler.codec.http2.Http2Exception;
-import io.netty.handler.codec.http2.Http2FrameAdapter;
-import io.netty.handler.codec.http2.Http2FrameLogger;
-import io.netty.handler.codec.http2.Http2SecurityUtil;
-import io.netty.handler.codec.http2.Http2Settings;
-import io.netty.handler.logging.LogLevel;
-import io.netty.handler.logging.LoggingHandler;
-import io.netty.handler.ssl.ApplicationProtocolConfig;
-import io.netty.handler.ssl.ApplicationProtocolNames;
-import io.netty.handler.ssl.SslContext;
-import io.netty.handler.ssl.SslContextBuilder;
-import io.netty.handler.ssl.SslHandler;
-import io.netty.handler.ssl.SslProvider;
-import io.netty.handler.ssl.SupportedCipherSuiteFilter;
-import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
-import org.junit.Test;
-
-import javax.net.ssl.SNIHostName;
-import javax.net.ssl.SNIServerName;
-import javax.net.ssl.SSLEngine;
-import javax.net.ssl.SSLParameters;
-import java.net.InetSocketAddress;
-import java.util.Arrays;
-import java.util.concurrent.CountDownLatch;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
-import java.util.logging.Level;
-import java.util.logging.LogManager;
-import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
-
-/**
- */
-public class Http2FrameAdapterTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
-
-    @Test
-    public void testHttp2FrameAdapter() throws Exception {
-        final int serverExpectedDataFrames = 1;
-        //final InetSocketAddress inetSocketAddress = new InetSocketAddress("http2-push.io", 443);
-        final InetSocketAddress inetSocketAddress = new InetSocketAddress("webtide.com", 443);
-        final CountDownLatch dataLatch = new CountDownLatch(serverExpectedDataFrames);
-        EventLoopGroup group = new NioEventLoopGroup();
-        Channel clientChannel = null;
-        try {
-            Bootstrap bs = new Bootstrap();
-            bs.group(group);
-            bs.channel(NioSocketChannel.class);
-            bs.handler(new ChannelInitializer<Channel>() {
-                @Override
-                protected void initChannel(Channel ch) throws Exception {
-                    ch.pipeline().addLast(new TrafficLoggingHandler());
-                    SslContext sslContext = SslContextBuilder.forClient()
-                            .sslProvider(SslProvider.OPENSSL)
-                            .trustManager(InsecureTrustManagerFactory.INSTANCE)
-                            .ciphers(Http2SecurityUtil.CIPHERS, SupportedCipherSuiteFilter.INSTANCE)
-                            .applicationProtocolConfig(new ApplicationProtocolConfig(
-                                    ApplicationProtocolConfig.Protocol.ALPN,
-                                    ApplicationProtocolConfig.SelectorFailureBehavior.NO_ADVERTISE,
-                                    ApplicationProtocolConfig.SelectedListenerFailureBehavior.ACCEPT,
-                                    ApplicationProtocolNames.HTTP_2))
-                            .build();
-                    SslHandler sslHandler = sslContext.newHandler(ch.alloc());
-                    SSLEngine engine = sslHandler.engine();
-                    String fullQualifiedHostname = inetSocketAddress.getHostName();
-                    SSLParameters params = engine.getSSLParameters();
-                    params.setServerNames(Arrays.asList(new SNIServerName[]{new SNIHostName(fullQualifiedHostname)}));
-                    engine.setSSLParameters(params);
-                    ch.pipeline().addLast(sslHandler);
-                    Http2ConnectionHandlerBuilder builder = new Http2ConnectionHandlerBuilder();
-                    builder.server(false);
-                    builder.frameListener(new Http2FrameAdapter() {
-                        @Override
-                        public void onSettingsRead(ChannelHandlerContext ctx, Http2Settings settings)
-                                throws Http2Exception {
-                            logger.log(Level.FINE, "settings received, now writing headers");
-                            Http2ConnectionHandler handler = ctx.pipeline().get(Http2ConnectionHandler.class);
-                            handler.encoder().writeHeaders(ctx, 3,
-                                    new DefaultHttp2Headers().method(HttpMethod.GET.asciiName())
-                                            .path("/")
-                                            .scheme("https")
-                                            .authority(inetSocketAddress.getHostName()),
-                                    0, true, ctx.newPromise());
-                            ctx.channel().flush();
-                        }
-
-                        @Override
-                        public int onDataRead(ChannelHandlerContext ctx, int streamId, ByteBuf data, int padding,
-                                              boolean endOfStream) throws Http2Exception {
-                            dataLatch.countDown();
-                            return super.onDataRead(ctx, streamId, data, padding, endOfStream);
-                        }
-                    });
-                    builder.frameLogger(new Http2FrameLogger(LogLevel.INFO, "client"));
-                    ch.pipeline().addLast(builder.build());
-                }
-            });
-            clientChannel = bs.connect(inetSocketAddress).syncUninterruptibly().channel();
-            logger.log(Level.INFO, () -> "waiting for HTTP/2 data");
-            dataLatch.await();
-            logger.log(Level.INFO, () -> "done, data arrived");
-        } finally {
-            if (clientChannel != null) {
-                clientChannel.close();
-            }
-            group.shutdownGracefully();
-        }
-    }
-
-    class TrafficLoggingHandler extends LoggingHandler {
-
-        TrafficLoggingHandler() {
-            super("client", LogLevel.TRACE);
-        }
-
-        @Override
-        public void channelRegistered(ChannelHandlerContext ctx) throws Exception {
-            ctx.fireChannelRegistered();
-        }
-
-        @Override
-        public void channelUnregistered(ChannelHandlerContext ctx) throws Exception {
-            ctx.fireChannelUnregistered();
-        }
-
-        @Override
-        public void flush(ChannelHandlerContext ctx) throws Exception {
-            ctx.flush();
-        }
-
-        @Override
-        public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
-            if (msg instanceof ByteBuf && !((ByteBuf) msg).isReadable()) {
-                ctx.write(msg, promise);
-            } else {
-                super.write(ctx, msg, promise);
-            }
-        }
-    }
-}

src/test/java/org/xbib/netty/http/client/test/Http2PushioTest.java

@@ -1,52 +0,0 @@
-package org.xbib.netty.http.client.test;
-
-import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
-
-import java.nio.charset.StandardCharsets;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
-import java.util.logging.Level;
-import java.util.logging.LogManager;
-import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
-
-/**
- */
-public class Http2PushioTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
-
-    @Test
-    public void testHttpPushIo() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-
-        httpClient.prepareGet()
-                .setVersion("HTTP/2.0")
-                .setURL("https://http2-push.io")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-}

src/test/java/org/xbib/netty/http/client/test/HttpBinTest.java

@@ -1,39 +1,21 @@
 package org.xbib.netty.http.client.test;
 
 import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.Request;
 
 import java.nio.charset.StandardCharsets;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
 import java.util.logging.Level;
-import java.util.logging.LogManager;
 import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
 
 /**
  */
-public class HttpBinTest {
+public class HttpBinTest extends LoggingBase {
 
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
+    private static final Logger logger = Logger.getLogger(HttpBinTest.class.getName());
 
     /**
-     * Test httpbin.org cookie setter with HTTP/1.1.
+     * Test httpbin.org "Set-Cookie:" header after redirection of URL.
      *
      * The reponse body should be
      * <pre>
@@ -46,21 +28,22 @@ public class HttpBinTest {
      * @throws Exception
      */
     @Test
-    public void testHttpBinCookies() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setURL("http://httpbin.org/cookies/set?name=value")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onCookie(cookie -> logger.log(Level.INFO, cookie.toString()))
-                .onHeaders(headers -> logger.log(Level.INFO, headers.toString()))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
+    public void testHttpBinCookies() {
+        Client client = new Client();
+        try {
+            Request request = Request.get()
+                    .setURL("http://httpbin.org/cookies/set?name=value")
+                    .build()
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e))
+                    .setCookieListener(cookie -> logger.log(Level.INFO, "this is the cookie " + cookie.toString()))
+                    .setHeadersListener(headers -> logger.log(Level.INFO, headers.toString()))
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    });
+            client.execute(request).get();
+        } finally {
+            client.shutdownGracefully();
+        }
     }
-
 }

src/test/java/org/xbib/netty/http/client/test/IndexHbzTest.java

@@ -1,186 +0,0 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-package org.xbib.netty.http.client.test;
-
-import io.netty.handler.codec.http.FullHttpResponse;
-import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
-import org.xbib.netty.http.client.HttpRequestBuilder;
-import org.xbib.netty.http.client.HttpRequestContext;
-
-import java.nio.charset.StandardCharsets;
-import java.util.concurrent.CompletableFuture;
-import java.util.function.Function;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
-import java.util.logging.Level;
-import java.util.logging.LogManager;
-import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
-
-/**
- */
-public class IndexHbzTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
-
-    @Test
-    public void testIndexHbz() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setVersion("HTTP/1.1")
-                .setURL("http://index.hbz-nrw.de")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-
-    @Test
-    public void testIndexHbzHttps() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setVersion("HTTP/1.1")
-                .setURL("https://index.hbz-nrw.de")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-
-    @Test
-    public void testIndexHbzWithCompletableFuture() throws Exception {
-        // fetches "test" as content from index.hbz-nrw.de and continues with sending another URL to google.com
-
-        // tricky: google.com does not completely redirect because the first httpResponseStringFunction wins
-        // and generates the desired string result
-
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-
-        final Function<FullHttpResponse, String> httpResponseStringFunction =
-                response -> response.content().toString(StandardCharsets.UTF_8);
-
-        final CompletableFuture<String> completableFuture = httpClient.prepareGet()
-                .setURL("http://index.hbz-nrw.de")
-                .execute(httpResponseStringFunction)
-                .exceptionally(Throwable::getMessage)
-                .thenCompose(content -> httpClient.prepareGet()
-                        .setURL("http://google.com/?query=" + content)
-                        .execute(httpResponseStringFunction));
-
-        String result = completableFuture.join();
-
-        logger.log(Level.INFO, "completablefuture result = " + result);
-
-        httpClient.close();
-    }
-
-    @Test
-    public void testIndexHbzH2() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setVersion("HTTP/2.0")
-                .setURL("https://index.hbz-nrw.de")
-                .setTimeout(5000)
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-
-    public void testIndexHbzH2C() throws Exception {
-
-        // times out waiting for http2 settings frame
-
-        HttpClient httpClient = HttpClient.builder()
-                .setInstallHttp2Upgrade(true)
-                .build();
-        httpClient.prepareGet()
-                .setVersion("HTTP/2.0")
-                .setURL("http://index.hbz-nrw.de")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
-    }
-
-    @Test
-    public void testIndexHbzConcurrentHttp1() throws Exception {
-
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-
-        HttpRequestBuilder builder1 = httpClient.prepareGet()
-                .setVersion("HTTP/1.1")
-                .setURL("http://index.hbz-nrw.de")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                });
-
-        HttpRequestBuilder builder2 = httpClient.prepareGet()
-                .setVersion("HTTP/1.1")
-                .setURL("http://index.hbz-nrw.de")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                });
-
-        HttpRequestContext context1 = builder1.execute();
-        HttpRequestContext context2 = builder2.execute();
-        context1.get();
-        context2.get();
-
-        httpClient.close();
-    }
-}

src/test/java/org/xbib/netty/http/client/test/LoggingBase.java

@@ -0,0 +1,26 @@
+package org.xbib.netty.http.client.test;
+
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.LogManager;
+import java.util.logging.Logger;
+import java.util.logging.SimpleFormatter;
+
+public class LoggingBase {
+
+    static {
+        System.setProperty("java.util.logging.SimpleFormatter.format",
+                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
+        LogManager.getLogManager().reset();
+        Logger rootLogger = LogManager.getLogManager().getLogger("");
+        Handler handler = new ConsoleHandler();
+        handler.setFormatter(new SimpleFormatter());
+        rootLogger.addHandler(handler);
+        rootLogger.setLevel(Level.INFO);
+        for (Handler h : rootLogger.getHandlers()) {
+            handler.setFormatter(new SimpleFormatter());
+            h.setLevel(Level.ALL);
+        }
+    }
+}

src/test/java/org/xbib/netty/http/client/test/URITest.java

@@ -1,9 +1,8 @@
 package org.xbib.netty.http.client.test;
 
-import io.netty.handler.codec.http.HttpMethod;
 import org.junit.Test;
-import org.xbib.netty.http.client.HttpClientRequestBuilder;
-import org.xbib.netty.http.client.HttpRequestBuilder;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.RequestBuilder;
 
 import java.net.URI;
 
@@ -24,15 +23,15 @@ public class URITest {
     }
 
     @Test
-    public void testClientRequestURIs() {
-        HttpRequestBuilder httpRequestBuilder = HttpClientRequestBuilder.builder(HttpMethod.GET);
+    public void testRequestURIs() {
+        RequestBuilder httpRequestBuilder = Request.get();
         httpRequestBuilder.setURL("https://localhost").path("/path");
-        assertEquals("/path", httpRequestBuilder.build().uri());
+        assertEquals("/path", httpRequestBuilder.build().relativeUri());
         httpRequestBuilder.path("/foobar");
-        assertEquals("/foobar", httpRequestBuilder.build().uri());
+        assertEquals("/foobar", httpRequestBuilder.build().relativeUri());
         httpRequestBuilder.path("/path1?a=b");
-        assertEquals("/path1?a=b", httpRequestBuilder.build().uri());
+        assertEquals("/path1?a=b", httpRequestBuilder.build().relativeUri());
         httpRequestBuilder.path("/path2?c=d");
-        assertEquals("/path2?c=d", httpRequestBuilder.build().uri());
+        assertEquals("/path2?c=d", httpRequestBuilder.build().relativeUri());
     }
 }

src/test/java/org/xbib/netty/http/client/test/WebtideTest.java

@@ -1,60 +0,0 @@
-package org.xbib.netty.http.client.test;
-
-import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
-
-import java.nio.charset.StandardCharsets;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
-import java.util.logging.Level;
-import java.util.logging.LogManager;
-import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
-
-/**
- */
-public class WebtideTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.FINE);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.FINE);
-        }
-    }
-
-    private static final Logger logger = Logger.getLogger("");
-
-    @Test
-    public void testWebtide() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-
-        httpClient.prepareGet()
-                .setVersion("HTTP/2.0")
-                .setURL("https://webtide.com")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status()
-                            + " response headers = " + fullHttpResponse.headers().entries()
-                            );
-                })
-                .onPushReceived((headers, fullHttpResponse) -> {
-                    logger.log(Level.INFO, "received push promise: request headers = " + headers
-                            + " status = " + fullHttpResponse.status()
-                            + " response headers = " + fullHttpResponse.headers().entries()
-                            );
-                })
-                .execute()
-                .get();
-
-        httpClient.close();
-    }
-}

src/test/java/org/xbib/netty/http/client/test/XbibTest.java

@@ -1,162 +1,131 @@
-/*
- * Copyright 2017 Jörg Prante
- *
- * Jörg Prante licenses this file to you under the Apache License,
- * version 2.0 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at:
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
 package org.xbib.netty.http.client.test;
 
 import io.netty.handler.codec.http.FullHttpResponse;
-import org.junit.Ignore;
+import io.netty.handler.proxy.HttpProxyHandler;
 import org.junit.Test;
-import org.xbib.netty.http.client.HttpClient;
+import org.xbib.netty.http.client.Client;
+import org.xbib.netty.http.client.Request;
+import org.xbib.netty.http.client.test.LoggingBase;
 
 import java.net.InetSocketAddress;
 import java.nio.charset.StandardCharsets;
 import java.util.concurrent.CompletableFuture;
 import java.util.function.Function;
-import java.util.logging.ConsoleHandler;
-import java.util.logging.Handler;
 import java.util.logging.Level;
-import java.util.logging.LogManager;
 import java.util.logging.Logger;
-import java.util.logging.SimpleFormatter;
 
-/**
- */
-public class XbibTest {
-
-    static {
-        System.setProperty("java.util.logging.SimpleFormatter.format",
-                "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %2$s %5$s %6$s%n");
-        LogManager.getLogManager().reset();
-        Logger rootLogger = LogManager.getLogManager().getLogger("");
-        Handler handler = new ConsoleHandler();
-        handler.setFormatter(new SimpleFormatter());
-        rootLogger.addHandler(handler);
-        rootLogger.setLevel(Level.ALL);
-        for (Handler h : rootLogger.getHandlers()) {
-            handler.setFormatter(new SimpleFormatter());
-            h.setLevel(Level.ALL);
-        }
-    }
+public class XbibTest extends LoggingBase {
 
     private static final Logger logger = Logger.getLogger("");
 
     @Test
-    public void testXbibOrgWithDefaults() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
-        httpClient.prepareGet()
-                .setURL("http://xbib.org")
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-        httpClient.close();
+    public void testXbibOrgWithDefaults() {
+        Client client = new Client();
+        try {
+            Request request = Request.get().setURL("http://xbib.org")
+                    .build()
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    });
+            client.execute(request);
+        } finally {
+            client.shutdownGracefully();
+        }
     }
 
     @Test
-    public void testXbibOrgWithCompletableFuture() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
+    public void testXbibOrgWithCompletableFuture() {
+        Client httpClient = Client.builder()
                 .setTcpNodelay(true)
                 .build();
-
-        final Function<FullHttpResponse, String> httpResponseStringFunction =
-                response -> response.content().toString(StandardCharsets.UTF_8);
-
-        final CompletableFuture<String> completableFuture = httpClient.prepareGet()
-                .setURL("http://index.hbz-nrw.de")
-                .execute(httpResponseStringFunction)
-                .exceptionally(Throwable::getMessage)
-                .thenCompose(content -> httpClient.prepareGet()
-                        .setURL("http://google.de/?query=" + content)
-                        .execute(httpResponseStringFunction));
-
-        String result = completableFuture.join();
-
-        logger.log(Level.FINE, "completablefuture result = " + result);
-
-        httpClient.close();
+        try {
+            final Function<FullHttpResponse, String> httpResponseStringFunction =
+                    response -> response.content().toString(StandardCharsets.UTF_8);
+            Request request = Request.get().setURL("http://xbib.org")
+                    .build();
+            final CompletableFuture<String> completableFuture = httpClient.execute(request, httpResponseStringFunction)
+                    .exceptionally(Throwable::getMessage)
+                    .thenCompose(content -> httpClient.execute(Request.post()
+                            .setURL("http://google.de")
+                            .addParam("query", content)
+                            .build(), httpResponseStringFunction));
+            String result = completableFuture.join();
+            logger.info("result = " + result);
+        } finally {
+            httpClient.shutdownGracefully();
+        }
     }
 
     @Test
-    @Ignore
-    public void testXbibOrgWithProxy() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .setHttpProxyHandler(new InetSocketAddress("80.241.223.251", 8080))
+    public void testXbibOrgWithProxy() {
+        Client httpClient = Client.builder()
+                .setHttpProxyHandler(new HttpProxyHandler(new InetSocketAddress("80.241.223.251", 8080)))
                 .setConnectTimeoutMillis(30000)
                 .setReadTimeoutMillis(30000)
                 .build();
-        httpClient.prepareGet()
-                .setURL("http://xbib.org")
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .execute()
-                .get();
-        httpClient.close();
+        try {
+            httpClient.execute(Request.get()
+                    .setURL("http://xbib.org")
+                    .build()
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    })
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e)))
+                    .get();
+        } finally {
+            httpClient.shutdownGracefully();
+        }
     }
 
     @Test
-    public void testXbibOrgWithVeryShortReadTimeout() throws Exception {
-        logger.log(Level.FINE, "start");
-        HttpClient httpClient = HttpClient.builder()
+    public void testXbibOrgWithVeryShortReadTimeout() {
+        Client httpClient = Client.builder()
                 .setReadTimeoutMillis(50)
                 .build();
-        httpClient.prepareGet()
-                .setURL("http://xbib.org")
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .execute()
-                .get();
-        httpClient.close();
-        logger.log(Level.FINE, "end");
+        try {
+            httpClient.execute(Request.get()
+                    .setURL("http://xbib.org")
+                    .build()
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    })
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e)))
+                    .get();
+        } finally {
+            httpClient.shutdownGracefully();
+        }
     }
 
     @Test
-    public void testXbibTwoSequentialRequests() throws Exception {
-        HttpClient httpClient = HttpClient.builder()
-                .build();
+    public void testXbibTwoSequentialRequests() {
+        Client httpClient = new Client();
+        try {
+            httpClient.execute(Request.get()
+                    .setVersion("HTTP/1.1")
+                    .setURL("http://xbib.org")
+                    .build()
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e))
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    }))
+                    .get();
 
-        httpClient.prepareGet()
-                .setVersion("HTTP/1.1")
-                .setURL("http://xbib.org")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-
-        httpClient.prepareGet()
-                .setVersion("HTTP/1.1")
-                .setURL("http://xbib.org")
-                .onException(e -> logger.log(Level.SEVERE, e.getMessage(), e))
-                .onResponse(fullHttpResponse -> {
-                    String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
-                    logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
-                })
-                .execute()
-                .get();
-
-        httpClient.close();
+            httpClient.execute(Request.get()
+                    .setVersion("HTTP/1.1")
+                    .setURL("http://xbib.org")
+                    .build()
+                    .setExceptionListener(e -> logger.log(Level.SEVERE, e.getMessage(), e))
+                    .setResponseListener(fullHttpResponse -> {
+                        String response = fullHttpResponse.content().toString(StandardCharsets.UTF_8);
+                        logger.log(Level.INFO, "status = " + fullHttpResponse.status() + " response body = " + response);
+                    }))
+                    .get();
+        } finally {
+            httpClient.shutdownGracefully();
+        }
     }
 }

src/test/java/org/xbib/netty/http/client/test/rest/RestClientTest.java

@@ -0,0 +1,18 @@
+package org.xbib.netty.http.client.test.rest;
+
+import org.junit.Test;
+import org.xbib.netty.http.client.rest.RestClient;
+
+import java.io.IOException;
+import java.util.logging.Logger;
+
+public class RestClientTest {
+
+    private static final Logger logger = Logger.getLogger(RestClientTest.class.getName());
+
+    @Test
+    public void testSimpleGet() throws IOException {
+        String result = RestClient.get("http://xbib.org").asString();
+        logger.info(result);
+    }
+}

src/test/java/org/xbib/netty/http/client/test/simple/Http2FramesTest.java

@@ -0,0 +1,120 @@
+package org.xbib.netty.http.client.test.simple;
+
+import io.netty.bootstrap.Bootstrap;
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.handler.codec.http.HttpMethod;
+import io.netty.handler.codec.http2.DefaultHttp2Headers;
+import io.netty.handler.codec.http2.Http2ConnectionHandler;
+import io.netty.handler.codec.http2.Http2ConnectionHandlerBuilder;
+import io.netty.handler.codec.http2.Http2Exception;
+import io.netty.handler.codec.http2.Http2FrameAdapter;
+import io.netty.handler.codec.http2.Http2FrameLogger;
+import io.netty.handler.codec.http2.Http2SecurityUtil;
+import io.netty.handler.codec.http2.Http2Settings;
+import io.netty.handler.logging.LogLevel;
+import io.netty.handler.ssl.ApplicationProtocolConfig;
+import io.netty.handler.ssl.ApplicationProtocolNames;
+import io.netty.handler.ssl.SslContext;
+import io.netty.handler.ssl.SslContextBuilder;
+import io.netty.handler.ssl.SslHandler;
+import io.netty.handler.ssl.SslProvider;
+import io.netty.handler.ssl.SupportedCipherSuiteFilter;
+import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
+import org.junit.Ignore;
+import org.junit.Test;
+
+import javax.net.ssl.SNIHostName;
+import javax.net.ssl.SNIServerName;
+import javax.net.ssl.SSLEngine;
+import javax.net.ssl.SSLParameters;
+import java.net.InetSocketAddress;
+import java.util.Arrays;
+import java.util.concurrent.CompletableFuture;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class Http2FramesTest {
+
+    private static final Logger logger = Logger.getLogger(Http2FramesTest.class.getName());
+
+    @Test
+    @Ignore
+    public void testHttp2Frames() throws Exception {
+        final InetSocketAddress inetSocketAddress = new InetSocketAddress("webtide.com", 443);
+        CompletableFuture<Boolean> completableFuture = new CompletableFuture<>();
+        EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
+        Channel clientChannel = null;
+        try {
+            Bootstrap bootstrap = new Bootstrap()
+                    .group(eventLoopGroup)
+                    .channel(NioSocketChannel.class)
+                    .handler(new ChannelInitializer<Channel>() {
+                        @Override
+                        protected void initChannel(Channel ch) throws Exception {
+                            SslContext sslContext = SslContextBuilder.forClient()
+                                    .sslProvider(SslProvider.JDK)
+                                    .trustManager(InsecureTrustManagerFactory.INSTANCE)
+                                    .ciphers(Http2SecurityUtil.CIPHERS, SupportedCipherSuiteFilter.INSTANCE)
+                                    .applicationProtocolConfig(new ApplicationProtocolConfig(
+                                            ApplicationProtocolConfig.Protocol.ALPN,
+                                            ApplicationProtocolConfig.SelectorFailureBehavior.NO_ADVERTISE,
+                                            ApplicationProtocolConfig.SelectedListenerFailureBehavior.ACCEPT,
+                                            ApplicationProtocolNames.HTTP_2))
+                                    .build();
+                            SslHandler sslHandler = sslContext.newHandler(ch.alloc());
+                            SSLEngine engine = sslHandler.engine();
+                            String fullQualifiedHostname = inetSocketAddress.getHostName();
+                            SSLParameters params = engine.getSSLParameters();
+                            params.setServerNames(Arrays.asList(new SNIServerName[]{new SNIHostName(fullQualifiedHostname)}));
+                            engine.setSSLParameters(params);
+                            ch.pipeline().addLast(sslHandler);
+                            Http2FrameAdapter frameAdapter = new Http2FrameAdapter() {
+                                @Override
+                                public void onSettingsRead(ChannelHandlerContext ctx, Http2Settings settings) {
+                                    logger.log(Level.FINE, "settings received, now writing request");
+                                    Http2ConnectionHandler handler = ctx.pipeline().get(Http2ConnectionHandler.class);
+                                    handler.encoder().writeHeaders(ctx, 3,
+                                            new DefaultHttp2Headers().method(HttpMethod.GET.asciiName())
+                                                    .path("/")
+                                                    .scheme("https")
+                                                    .authority(inetSocketAddress.getHostName()),
+                                            0, true, ctx.newPromise());
+                                    ctx.channel().flush();
+                                }
+
+                                @Override
+                                public int onDataRead(ChannelHandlerContext ctx, int streamId, ByteBuf data, int padding,
+                                                      boolean endOfStream) throws Http2Exception {
+                                    int i = super.onDataRead(ctx, streamId, data, padding, endOfStream);
+                                    if (endOfStream) {
+                                        completableFuture.complete(true);
+                                    }
+                                    return i;
+                                }
+                            };
+                            Http2ConnectionHandlerBuilder builder = new Http2ConnectionHandlerBuilder()
+                                    .server(false)
+                                    .frameListener(frameAdapter)
+                                    .frameLogger(new Http2FrameLogger(LogLevel.INFO, "client"));
+                            ch.pipeline().addLast(builder.build());
+                        }
+                    });
+            logger.log(Level.INFO, () -> "connecting");
+            clientChannel = bootstrap.connect(inetSocketAddress).sync().channel();
+            logger.log(Level.INFO, () -> "waiting for end of stream");
+            completableFuture.get();
+            logger.log(Level.INFO, () -> "done");
+        } finally {
+            if (clientChannel != null) {
+                clientChannel.close();
+            }
+            eventLoopGroup.shutdownGracefully();
+        }
+    }
+}

src/test/java/org/xbib/netty/http/client/test/simple/SimpleHttp1Test.java

@@ -0,0 +1,324 @@
+package org.xbib.netty.http.client.test.simple;
+
+import io.netty.bootstrap.Bootstrap;
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.ChannelPromise;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.SimpleChannelInboundHandler;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.handler.codec.http.DefaultFullHttpRequest;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpClientCodec;
+import io.netty.handler.codec.http.HttpHeaderNames;
+import io.netty.handler.codec.http.HttpHeaderValues;
+import io.netty.handler.codec.http.HttpMethod;
+import io.netty.handler.codec.http.HttpObjectAggregator;
+import io.netty.handler.codec.http.HttpVersion;
+import io.netty.handler.codec.http2.Http2Settings;
+import io.netty.handler.codec.http2.HttpConversionUtil;
+import io.netty.handler.logging.LogLevel;
+import io.netty.handler.logging.LoggingHandler;
+import io.netty.util.AttributeKey;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *
+ */
+public class SimpleHttp1Test {
+
+    private static final Logger logger = Logger.getLogger(SimpleHttp1Test.class.getName());
+
+    @Test
+    public void testHttp1() throws Exception {
+        Client client = new Client();
+        try {
+            HttpTransport transport = client.newTransport("fl.hbz-nrw.de", 80);
+            transport.onResponse(string -> logger.log(Level.INFO, "got messsage: " + string));
+            transport.connect();
+            transport.awaitSettings();
+            sendRequest(transport);
+            transport.awaitResponses();
+            transport.close();
+        } finally {
+            client.shutdown();
+        }
+    }
+
+    private void sendRequest(HttpTransport transport) {
+        Channel channel = transport.channel();
+        if (channel == null) {
+            return;
+        }
+        Integer streamId = transport.nextStream();
+        String host = transport.inetSocketAddress().getHostString();
+        int port = transport.inetSocketAddress().getPort();
+        String uri = "https://" + host + ":" + port;
+        FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, uri);
+        request.headers().add(HttpHeaderNames.HOST, host + ":" + port);
+        request.headers().add(HttpHeaderNames.USER_AGENT, "Java");
+        request.headers().add(HttpHeaderNames.ACCEPT_ENCODING, HttpHeaderValues.GZIP);
+        request.headers().add(HttpHeaderNames.ACCEPT_ENCODING, HttpHeaderValues.DEFLATE);
+        if (streamId != null) {
+            request.headers().add(HttpConversionUtil.ExtensionHeaderNames.STREAM_ID.text(), Integer.toString(streamId));
+        }
+        logger.log(Level.INFO, () -> "writing request = " + request);
+        channel.writeAndFlush(request);
+    }
+
+    private AttributeKey<HttpTransport> TRANSPORT_ATTRIBUTE_KEY = AttributeKey.valueOf("transport");
+
+    interface ResponseWriter {
+        void write(String string);
+    }
+
+    class Client {
+        private final EventLoopGroup eventLoopGroup;
+
+        private final Bootstrap bootstrap;
+
+        private final HttpResponseHandler httpResponseHandler;
+
+        private final Initializer initializer;
+
+        private final List<HttpTransport> transports;
+
+        Client() {
+            eventLoopGroup = new NioEventLoopGroup();
+            httpResponseHandler = new HttpResponseHandler();
+            initializer = new Initializer(httpResponseHandler);
+            bootstrap = new Bootstrap()
+                    .group(eventLoopGroup)
+                    .channel(NioSocketChannel.class)
+                    .handler(initializer);
+            transports = new ArrayList<>();
+        }
+
+        Bootstrap bootstrap() {
+            return bootstrap;
+        }
+
+        Initializer initializer() {
+            return initializer;
+        }
+
+        HttpResponseHandler responseHandler() {
+            return httpResponseHandler;
+        }
+
+        void shutdown() {
+            eventLoopGroup.shutdownGracefully();
+        }
+
+        HttpTransport newTransport(String host, int port) {
+            HttpTransport transport = new HttpTransport(this, new InetSocketAddress(host, port));
+            transports.add(transport);
+            return transport;
+        }
+
+        List<HttpTransport> transports() {
+            return transports;
+        }
+
+        void close(HttpTransport transport) {
+            transports.remove(transport);
+        }
+
+        void close() {
+            for (HttpTransport transport : transports) {
+                transport.close();
+            }
+        }
+    }
+
+    class HttpTransport {
+
+        private final Client client;
+
+        private final InetSocketAddress inetSocketAddress;
+
+        private Channel channel;
+
+        private CompletableFuture<Boolean> promise;
+
+        private ResponseWriter responseWriter;
+
+        HttpTransport(Client client, InetSocketAddress inetSocketAddress ) {
+            this.client = client;
+            this.inetSocketAddress = inetSocketAddress;
+        }
+
+        Client client() {
+            return client;
+        }
+
+        InetSocketAddress inetSocketAddress() {
+            return inetSocketAddress;
+        }
+
+        void connect() throws InterruptedException {
+            channel = client.bootstrap().connect(inetSocketAddress).sync().await().channel();
+            channel.attr(TRANSPORT_ATTRIBUTE_KEY).set(this);
+        }
+
+        Channel channel() {
+            return channel;
+        }
+
+        Integer nextStream() {
+            promise = new CompletableFuture<>();
+            return null;
+        }
+
+        void onResponse(ResponseWriter responseWriter) {
+            this.responseWriter = responseWriter;
+        }
+
+        void settingsReceived(Channel channel, Http2Settings http2Settings) {
+        }
+
+        void awaitSettings() {
+        }
+
+        void responseReceived(Integer streamId, String message) {
+            if (promise == null) {
+                logger.log(Level.WARNING, "message received for unknown stream id " + streamId);
+            } else {
+                if (responseWriter != null) {
+                    responseWriter.write(message);
+                }
+            }
+        }
+        void awaitResponse(Integer streamId) {
+            if (promise != null) {
+                try {
+                    logger.log(Level.INFO, "waiting for response");
+                    promise.get(5, TimeUnit.SECONDS);
+                    logger.log(Level.INFO, "response received");
+                } catch (InterruptedException | ExecutionException | TimeoutException e) {
+                    logger.log(Level.WARNING, e.getMessage(), e);
+                }
+            }
+        }
+
+        void awaitResponses() {
+            awaitResponse(null);
+        }
+
+        void complete() {
+            if (promise != null) {
+                promise.complete(true);
+            }
+        }
+
+        void fail(Throwable throwable) {
+            if (promise != null) {
+                promise.completeExceptionally(throwable);
+            }
+        }
+
+        void close() {
+            if (channel != null) {
+                channel.close();
+            }
+            client.close(this);
+        }
+    }
+
+    class Initializer extends ChannelInitializer<SocketChannel> {
+
+        private HttpResponseHandler httpResponseHandler;
+
+        Initializer(HttpResponseHandler httpResponseHandler) {
+            this.httpResponseHandler = httpResponseHandler;
+        }
+
+        @Override
+        protected void initChannel(SocketChannel ch) {
+            ch.pipeline().addLast(new TrafficLoggingHandler());
+            ch.pipeline().addLast(new HttpClientCodec());
+            ch.pipeline().addLast(new HttpObjectAggregator(1048576));
+            ch.pipeline().addLast(httpResponseHandler);
+        }
+    }
+
+    class HttpResponseHandler extends SimpleChannelInboundHandler<FullHttpResponse> {
+
+        @Override
+        protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse msg) {
+            HttpTransport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            if (msg.content().isReadable()) {
+                transport.responseReceived(null, msg.content().toString(StandardCharsets.UTF_8));
+            }
+        }
+
+        @Override
+        public void channelReadComplete(ChannelHandlerContext ctx)  {
+            HttpTransport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            transport.complete();
+        }
+
+        @Override
+        public void channelInactive(ChannelHandlerContext ctx)  {
+            ctx.fireChannelInactive();
+            HttpTransport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            transport.fail(new IOException("channel closed"));
+        }
+
+        @Override
+        public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
+            logger.log(Level.SEVERE, cause.getMessage(), cause);
+            HttpTransport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            transport.fail(cause);
+            ctx.channel().close();
+        }
+    }
+
+    class TrafficLoggingHandler extends LoggingHandler {
+
+        TrafficLoggingHandler() {
+            super("client", LogLevel.INFO);
+        }
+
+        @Override
+        public void channelRegistered(ChannelHandlerContext ctx) {
+            ctx.fireChannelRegistered();
+        }
+
+        @Override
+        public void channelUnregistered(ChannelHandlerContext ctx) {
+            ctx.fireChannelUnregistered();
+        }
+
+        @Override
+        public void flush(ChannelHandlerContext ctx) {
+            ctx.flush();
+        }
+
+        @Override
+        public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
+            if (msg instanceof ByteBuf && !((ByteBuf) msg).isReadable()) {
+                ctx.write(msg, promise);
+            } else {
+                super.write(ctx, msg, promise);
+            }
+        }
+    }
+}

src/test/java/org/xbib/netty/http/client/test/simple/SimpleHttp2Test.java

@@ -0,0 +1,389 @@
+package org.xbib.netty.http.client.test.simple;
+
+import io.netty.bootstrap.Bootstrap;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.SimpleChannelInboundHandler;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.handler.codec.http.DefaultFullHttpRequest;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.FullHttpResponse;
+import io.netty.handler.codec.http.HttpHeaderNames;
+import io.netty.handler.codec.http.HttpHeaderValues;
+import io.netty.handler.codec.http.HttpMethod;
+import io.netty.handler.codec.http.HttpVersion;
+import io.netty.handler.codec.http2.DefaultHttp2Connection;
+import io.netty.handler.codec.http2.DelegatingDecompressorFrameListener;
+import io.netty.handler.codec.http2.Http2ConnectionHandler;
+import io.netty.handler.codec.http2.Http2FrameLogger;
+import io.netty.handler.codec.http2.Http2SecurityUtil;
+import io.netty.handler.codec.http2.Http2Settings;
+import io.netty.handler.codec.http2.HttpConversionUtil;
+import io.netty.handler.codec.http2.HttpToHttp2ConnectionHandlerBuilder;
+import io.netty.handler.codec.http2.InboundHttp2ToHttpAdapterBuilder;
+import io.netty.handler.logging.LogLevel;
+import io.netty.handler.ssl.ApplicationProtocolConfig;
+import io.netty.handler.ssl.ApplicationProtocolNames;
+import io.netty.handler.ssl.ApplicationProtocolNegotiationHandler;
+import io.netty.handler.ssl.SslContext;
+import io.netty.handler.ssl.SslContextBuilder;
+import io.netty.handler.ssl.SslProvider;
+import io.netty.handler.ssl.SupportedCipherSuiteFilter;
+import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
+import io.netty.util.AttributeKey;
+import org.junit.Test;
+
+import javax.net.ssl.SSLException;
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.SortedMap;
+import java.util.TreeMap;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ */
+public class SimpleHttp2Test {
+
+    private static final Logger logger = Logger.getLogger(SimpleHttp2Test.class.getName());
+
+    @Test
+    public void testHttp2WithUpgrade() throws Exception {
+        Client client = new Client();
+        try {
+            Http2Transport transport = client.newTransport("webtide.com", 443);
+            transport.onResponse(string -> logger.log(Level.INFO, "got messsage: " + string));
+            transport.connect();
+            transport.awaitSettings();
+            sendRequest(transport);
+            transport.awaitResponses();
+            transport.close();
+        } finally {
+            client.shutdown();
+        }
+    }
+
+    private void sendRequest(Http2Transport transport) {
+        Channel channel = transport.channel();
+        if (channel == null) {
+            return;
+        }
+        Integer streamId = transport.nextStream();
+        String host = transport.inetSocketAddress().getHostString();
+        int port = transport.inetSocketAddress().getPort();
+        String uri = "https://" + host + ":" + port;
+        FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, uri);
+        request.headers().add(HttpHeaderNames.HOST, host + ":" + port);
+        request.headers().add(HttpHeaderNames.USER_AGENT, "Java");
+        request.headers().add(HttpHeaderNames.ACCEPT_ENCODING, HttpHeaderValues.GZIP);
+        request.headers().add(HttpHeaderNames.ACCEPT_ENCODING, HttpHeaderValues.DEFLATE);
+        if (streamId != null) {
+            request.headers().add(HttpConversionUtil.ExtensionHeaderNames.STREAM_ID.text(), Integer.toString(streamId));
+        }
+        logger.log(Level.INFO, () -> "writing request = " + request);
+        channel.writeAndFlush(request);
+    }
+
+    private AttributeKey<Http2Transport> TRANSPORT_ATTRIBUTE_KEY = AttributeKey.valueOf("transport");
+
+    interface ResponseWriter {
+        void write(String string);
+    }
+
+    class Client {
+        private final EventLoopGroup eventLoopGroup;
+
+        private final Bootstrap bootstrap;
+
+        private final Http2SettingsHandler http2SettingsHandler;
+
+        private final Http2ResponseHandler http2ResponseHandler;
+
+        private final Initializer initializer;
+
+        private final List<Http2Transport> transports;
+
+        Client() {
+            eventLoopGroup = new NioEventLoopGroup();
+            http2SettingsHandler = new Http2SettingsHandler();
+            http2ResponseHandler = new Http2ResponseHandler();
+            initializer = new Initializer(http2SettingsHandler, http2ResponseHandler);
+            bootstrap = new Bootstrap()
+                    .group(eventLoopGroup)
+                    .channel(NioSocketChannel.class)
+                    .handler(initializer);
+            transports = new ArrayList<>();
+        }
+
+        Bootstrap bootstrap() {
+            return bootstrap;
+        }
+
+        void shutdown() {
+            eventLoopGroup.shutdownGracefully();
+        }
+
+        Http2Transport newTransport(String host, int port) {
+            Http2Transport transport = new Http2Transport(this, new InetSocketAddress(host, port));
+            transports.add(transport);
+            return transport;
+        }
+
+        List<Http2Transport> transports() {
+            return transports;
+        }
+
+        void close(Http2Transport transport) {
+            transports.remove(transport);
+        }
+
+        void close() {
+            for (Http2Transport transport : transports) {
+                transport.close();
+            }
+        }
+    }
+
+    class Http2Transport {
+
+        private final Client client;
+
+        private final InetSocketAddress inetSocketAddress;
+
+        private Channel channel;
+
+        CompletableFuture<Boolean> settingsPromise;
+
+        private SortedMap<Integer, CompletableFuture<Boolean>> streamidPromiseMap;
+
+        private AtomicInteger streamIdCounter;
+
+        private ResponseWriter responseWriter;
+
+        Http2Transport(Client client, InetSocketAddress inetSocketAddress) {
+            this.client = client;
+            this.inetSocketAddress = inetSocketAddress;
+            streamidPromiseMap = new TreeMap<>();
+            streamIdCounter = new AtomicInteger(3);
+        }
+
+        Client client() {
+            return client;
+        }
+
+        InetSocketAddress inetSocketAddress() {
+            return inetSocketAddress;
+        }
+
+        void connect() throws InterruptedException {
+            channel = client.bootstrap().connect(inetSocketAddress).sync().await().channel();
+            channel.attr(TRANSPORT_ATTRIBUTE_KEY).set(this);
+            settingsPromise = new CompletableFuture<>();
+        }
+
+        Channel channel() {
+            return channel;
+        }
+
+        Integer nextStream() {
+            Integer streamId = streamIdCounter.getAndAdd(2);
+            streamidPromiseMap.put(streamId, new CompletableFuture<>());
+            return streamId;
+        }
+
+        void onResponse(ResponseWriter responseWriter) {
+            this.responseWriter = responseWriter;
+        }
+
+        void settingsReceived(Channel channel, Http2Settings http2Settings) {
+            if (settingsPromise != null) {
+                settingsPromise.complete(true);
+            } else {
+                logger.log(Level.WARNING, "settings received but no promise present");
+            }
+        }
+
+        void awaitSettings() {
+            if (settingsPromise != null) {
+                try {
+                    logger.log(Level.INFO, "waiting for settings");
+                    settingsPromise.get(5, TimeUnit.SECONDS);
+                    logger.log(Level.INFO, "settings received");
+                } catch (InterruptedException | ExecutionException | TimeoutException e) {
+                    settingsPromise.completeExceptionally(e);
+                }
+            } else {
+                logger.log(Level.WARNING, "waiting for settings but no promise present");
+            }
+        }
+
+        void responseReceived(Integer streamId, String message) {
+            if (streamId == null) {
+                logger.log(Level.WARNING, "unexpected message received: " + message);
+                return;
+            }
+            CompletableFuture<Boolean> promise = streamidPromiseMap.get(streamId);
+            if (promise == null) {
+                logger.log(Level.WARNING, "message received for unknown stream id " + streamId);
+            } else {
+                if (responseWriter != null) {
+                    responseWriter.write(message);
+                }
+                promise.complete(true);
+            }
+        }
+
+        void awaitResponse(Integer streamId) {
+            if (streamId == null) {
+                return;
+            }
+            CompletableFuture<Boolean> promise = streamidPromiseMap.get(streamId);
+            if (promise != null) {
+                try {
+                    logger.log(Level.INFO, "waiting for response for stream id=" + streamId);
+                    promise.get(5, TimeUnit.SECONDS);
+                    logger.log(Level.INFO, "response for stream id=" + streamId + " received");
+                } catch (InterruptedException | ExecutionException | TimeoutException e) {
+                    logger.log(Level.WARNING, "streamId=" + streamId + " " + e.getMessage(), e);
+                } finally {
+                    streamidPromiseMap.remove(streamId);
+                }
+            }
+        }
+
+        void awaitResponses() {
+            logger.log(Level.INFO, "waiting for all stream ids " + streamidPromiseMap.keySet());
+            for (int streamId : streamidPromiseMap.keySet()) {
+                awaitResponse(streamId);
+            }
+        }
+
+        void complete() {
+            for (CompletableFuture<Boolean> promise : streamidPromiseMap.values()) {
+                promise.complete(true);
+            }
+        }
+
+        void fail(Throwable throwable) {
+            for (CompletableFuture<Boolean> promise : streamidPromiseMap.values()) {
+                promise.completeExceptionally(throwable);
+            }
+        }
+
+        void close() {
+            if (channel != null) {
+                channel.close();
+            }
+            client.close(this);
+        }
+    }
+
+    class Initializer extends ChannelInitializer<SocketChannel> {
+
+        private Http2SettingsHandler http2SettingsHandler;
+
+        private Http2ResponseHandler http2ResponseHandler;
+
+        Initializer(Http2SettingsHandler http2SettingsHandler, Http2ResponseHandler http2ResponseHandler) {
+            this.http2SettingsHandler = http2SettingsHandler;
+            this.http2ResponseHandler = http2ResponseHandler;
+        }
+
+        @Override
+        protected void initChannel(SocketChannel ch) {
+            DefaultHttp2Connection http2Connection = new DefaultHttp2Connection(false);
+            Http2FrameLogger frameLogger = new Http2FrameLogger(LogLevel.INFO, "client");
+            Http2ConnectionHandler http2ConnectionHandler = new HttpToHttp2ConnectionHandlerBuilder()
+                    .connection(http2Connection)
+                    .frameLogger(frameLogger)
+                    .frameListener(new DelegatingDecompressorFrameListener(http2Connection,
+                            new InboundHttp2ToHttpAdapterBuilder(http2Connection)
+                                    .maxContentLength(10 * 1024 * 1024)
+                                    .propagateSettings(true)
+                                    .build()))
+                    .build();
+
+            try {
+                SslContext sslContext = SslContextBuilder.forClient()
+                        .sslProvider(SslProvider.JDK)
+                        .trustManager(InsecureTrustManagerFactory.INSTANCE)
+                        .ciphers(Http2SecurityUtil.CIPHERS, SupportedCipherSuiteFilter.INSTANCE)
+                        .applicationProtocolConfig(new ApplicationProtocolConfig(
+                                ApplicationProtocolConfig.Protocol.ALPN,
+                                ApplicationProtocolConfig.SelectorFailureBehavior.NO_ADVERTISE,
+                                ApplicationProtocolConfig.SelectedListenerFailureBehavior.ACCEPT,
+                                ApplicationProtocolNames.HTTP_2))
+                        .build();
+                ch.pipeline().addLast(sslContext.newHandler(ch.alloc()));
+                ApplicationProtocolNegotiationHandler negotiationHandler = new ApplicationProtocolNegotiationHandler("") {
+                    @Override
+                    protected void configurePipeline(ChannelHandlerContext ctx, String protocol) {
+                        if (ApplicationProtocolNames.HTTP_2.equals(protocol)) {
+                            ctx.pipeline().addLast(http2ConnectionHandler, http2SettingsHandler, http2ResponseHandler);
+                            return;
+                        }
+                        ctx.close();
+                        throw new IllegalStateException("unknown protocol: " + protocol);
+                    }
+                };
+                ch.pipeline().addLast(negotiationHandler);
+            } catch (SSLException e) {
+                logger.log(Level.SEVERE, e.getMessage(), e);
+            }
+        }
+    }
+
+    class Http2SettingsHandler extends SimpleChannelInboundHandler<Http2Settings> {
+
+        @Override
+        protected void channelRead0(ChannelHandlerContext ctx, Http2Settings http2Settings) {
+            Http2Transport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            transport.settingsReceived(ctx.channel(), http2Settings);
+            ctx.pipeline().remove(this);
+        }
+    }
+
+    class Http2ResponseHandler extends SimpleChannelInboundHandler<FullHttpResponse> {
+
+        @Override
+        protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse msg) {
+            Http2Transport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            Integer streamId = msg.headers().getInt(HttpConversionUtil.ExtensionHeaderNames.STREAM_ID.text());
+            if (msg.content().isReadable()) {
+                transport.responseReceived(streamId, msg.content().toString(StandardCharsets.UTF_8));
+            }
+        }
+
+        @Override
+        public void channelReadComplete(ChannelHandlerContext ctx)  {
+            // do nothing
+        }
+
+        @Override
+        public void channelInactive(ChannelHandlerContext ctx)  {
+            ctx.fireChannelInactive();
+            Http2Transport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            transport.fail(new IOException("channel closed"));
+        }
+
+        @Override
+        public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
+            logger.log(Level.SEVERE, cause.getMessage(), cause);
+            Http2Transport transport = ctx.channel().attr(TRANSPORT_ATTRIBUTE_KEY).get();
+            transport.fail(cause);
+            ctx.channel().close();
+        }
+    }
+}