fixes for sonarqube, add Closeable to API, remove unused classes

build.gradle

@@ -7,7 +7,7 @@ plugins {
 allprojects {
 
     group = 'org.xbib'
-    version = '1.0.1'
+    version = '1.0.2'
 
     apply plugin: 'java'
     apply plugin: 'maven'

oai-client/config/checkstyle/checkstyle.xml

@@ -56,7 +56,7 @@ page at http://checkstyle.sourceforge.net/config.html -->
             <!-- Checks for out of order import statements. -->
 
             <property name="severity" value="warning"/>
-            <property name="groups" value="com,junit,net,org,java,javax"/>
+            <property name="groups" value="com,io,junit,net,org,java,javax"/>
             <!-- This ensures that static imports go first. -->
             <property name="option" value="top"/>
             <property name="tokens" value="STATIC_IMPORT, IMPORT"/>

oai-client/src/main/java/org/xbib/oai/client/ClientOAIRequest.java

@@ -15,7 +15,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * Client OAI request
+ * Client OAI request.
  */
 public class ClientOAIRequest implements OAIRequest {
 

oai-client/src/main/java/org/xbib/oai/client/ClientOAIResponse.java

@@ -7,7 +7,7 @@ import java.io.IOException;
 import java.io.Writer;
 
 /**
- * Default OAI response
+ * Default OAI response.
  */
 public interface ClientOAIResponse extends OAIResponse {
 

oai-client/src/main/java/org/xbib/oai/client/DefaultOAIClient.java

@@ -1,10 +1,5 @@
 package org.xbib.oai.client;
 
-import java.io.IOException;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.time.Duration;
-
 import org.xbib.helianthus.client.ClientBuilder;
 import org.xbib.helianthus.client.ClientFactory;
 import org.xbib.helianthus.client.http.HttpClient;
@@ -16,10 +11,14 @@ import org.xbib.oai.client.listrecords.ListRecordsRequest;
 import org.xbib.oai.client.listsets.ListSetsRequest;
 import org.xbib.oai.util.ResumptionToken;
 
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.time.Duration;
+
 /**
- * Default OAI client
+ * Default OAI client.
  */
-public class DefaultOAIClient implements OAIClient {
+public class DefaultOAIClient implements OAIClientMethods, AutoCloseable {
 
     private HttpClient client;
 
@@ -185,7 +184,7 @@ public class DefaultOAIClient implements OAIClient {
     }
 
     @Override
-    public void close() throws IOException {
+    public void close() {
         // nothing to close
     }
 }

oai-client/src/main/java/org/xbib/oai/client/OAIClientMethods.java

@@ -1,11 +1,7 @@
 package org.xbib.oai.client;
 
-import java.net.URISyntaxException;
-import java.net.URL;
-
 import org.xbib.helianthus.client.ClientFactory;
 import org.xbib.helianthus.client.http.HttpClient;
-import org.xbib.oai.OAIConstants;
 import org.xbib.oai.client.getrecord.GetRecordRequest;
 import org.xbib.oai.client.identify.IdentifyRequest;
 import org.xbib.oai.client.listidentifiers.ListIdentifiersRequest;
@@ -14,15 +10,18 @@ import org.xbib.oai.client.listrecords.ListRecordsRequest;
 import org.xbib.oai.client.listsets.ListSetsRequest;
 import org.xbib.oai.util.ResumptionToken;
 
+import java.net.URISyntaxException;
+import java.net.URL;
+
 /**
- * OAI client API
+ * OAI client API.
  *
  */
-public interface OAIClient extends OAIConstants, AutoCloseable {
+public interface OAIClientMethods {
 
-    OAIClient setURL(URL uri, boolean trustAlways) throws URISyntaxException;
+    OAIClientMethods setURL(URL uri, boolean trustAlways) throws URISyntaxException;
 
-    OAIClient setURL(URL uri) throws URISyntaxException;
+    OAIClientMethods setURL(URL uri) throws URISyntaxException;
 
     URL getURL();
 

oai-client/src/main/java/org/xbib/oai/client/identify/IdentifyRequest.java

@@ -1,7 +1,7 @@
 package org.xbib.oai.client.identify;
 
-import org.xbib.oai.client.ClientOAIRequest;
 import org.xbib.oai.OAIRequest;
+import org.xbib.oai.client.ClientOAIRequest;
 
 /**
  *

oai-client/src/main/java/org/xbib/oai/client/identify/IdentifyResponse.java

@@ -8,9 +8,6 @@ import org.xbib.oai.client.ClientOAIResponse;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
 
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
 import java.io.IOException;
 import java.io.StringReader;
 import java.io.Writer;
@@ -18,6 +15,9 @@ import java.net.URL;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
 
 /**
  *

oai-client/src/main/java/org/xbib/oai/client/listidentifiers/ListIdentifiersRequest.java

@@ -1,7 +1,7 @@
 package org.xbib.oai.client.listidentifiers;
 
-import org.xbib.oai.client.ClientOAIRequest;
 import org.xbib.oai.OAIRequest;
+import org.xbib.oai.client.ClientOAIRequest;
 
 /**
  *

oai-client/src/main/java/org/xbib/oai/client/listmetadataformats/ListMetadataFormatsRequest.java

@@ -1,7 +1,7 @@
 package org.xbib.oai.client.listmetadataformats;
 
-import org.xbib.oai.client.ClientOAIRequest;
 import org.xbib.oai.OAIRequest;
+import org.xbib.oai.client.ClientOAIRequest;
 
 /**
  *

oai-client/src/main/java/org/xbib/oai/client/listrecords/ListRecordsRequest.java

@@ -1,7 +1,7 @@
 package org.xbib.oai.client.listrecords;
 
-import org.xbib.oai.client.ClientOAIRequest;
 import org.xbib.oai.OAIConstants;
+import org.xbib.oai.client.ClientOAIRequest;
 import org.xbib.oai.xml.MetadataHandler;
 
 import java.util.LinkedList;
@@ -23,6 +23,8 @@ public class ListRecordsRequest extends ClientOAIRequest {
         return this;
     }
 
-    public List<MetadataHandler> getHandlers() { return handlers; }
+    public List<MetadataHandler> getHandlers() {
+        return handlers;
+    }
 
 }

oai-client/src/main/java/org/xbib/oai/client/listrecords/ListRecordsResponse.java

@@ -13,12 +13,6 @@ import org.xbib.oai.exceptions.OAIException;
 import org.xbib.oai.util.ResumptionToken;
 import org.xml.sax.InputSource;
 
-import javax.xml.transform.Source;
-import javax.xml.transform.Transformer;
-import javax.xml.transform.TransformerException;
-import javax.xml.transform.TransformerFactory;
-import javax.xml.transform.sax.SAXSource;
-import javax.xml.transform.stream.StreamResult;
 import java.io.IOException;
 import java.io.StringReader;
 import java.io.Writer;
@@ -28,6 +22,12 @@ import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoUnit;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import javax.xml.transform.Source;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.sax.SAXSource;
+import javax.xml.transform.stream.StreamResult;
 
 /**
  *

oai-client/src/test/java/org/xbib/oai/client/ArxivClientTest.java

@@ -39,8 +39,7 @@ public class ArxivClientTest {
 
     @Test
     public void testListRecordsArxiv() throws Exception {
-        try {
+        try (DefaultOAIClient client = new DefaultOAIClient().setURL(new URL("http://export.arxiv.org/oai2"))) {
-            OAIClient client = new DefaultOAIClient().setURL(new URL("http://export.arxiv.org/oai2"));
             IdentifyRequest identifyRequest = client.newIdentifyRequest();
             HttpClient httpClient = client.getHttpClient();
             AggregatedHttpMessage response = httpClient.execute(HttpHeaders.of(HttpMethod.GET, identifyRequest.getPath())
@@ -113,7 +112,6 @@ public class ArxivClientTest {
                 }
             }
             fileWriter.close();
-            client.close();
             logger.info("count={}", count.get());
             assertTrue(count.get() > 0L);
         } catch (ConnectException | ExecutionException e) {

oai-client/src/test/java/org/xbib/oai/client/DNBClientTest.java

@@ -1,13 +1,6 @@
 package org.xbib.oai.client;
 
-import java.io.File;
+import static org.junit.Assert.assertEquals;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.net.ConnectException;
-import java.net.URL;
-import java.time.Instant;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.atomic.AtomicLong;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -24,7 +17,14 @@ import org.xbib.oai.xml.SimpleMetadataHandler;
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 
-import static org.junit.Assert.assertEquals;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.net.ConnectException;
+import java.net.URL;
+import java.time.Instant;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.atomic.AtomicLong;
 
 /**
  *
@@ -35,7 +35,7 @@ public class DNBClientTest {
 
     @Test
     public void testIdentify() throws Exception {
-        OAIClient client = new DefaultOAIClient().setURL(new URL("http://services.dnb.de/oai/repository"));
+        DefaultOAIClient client = new DefaultOAIClient().setURL(new URL("http://services.dnb.de/oai/repository"));
         IdentifyRequest request = client.newIdentifyRequest();
         HttpClient httpClient = client.getHttpClient();
         assertEquals("/oai/repository?verb=Identify", request.getPath());
@@ -45,8 +45,7 @@ public class DNBClientTest {
 
     @Test
     public void testListRecordsDNB() throws Exception {
-        try {
+        try (DefaultOAIClient client = new DefaultOAIClient().setURL(new URL("http://services.dnb.de/oai/repository"))){
-            OAIClient client = new DefaultOAIClient().setURL(new URL("http://services.dnb.de/oai/repository"));
             ListRecordsRequest listRecordsRequest = client.newListRecordsRequest();
             listRecordsRequest.setFrom(Instant.parse("2016-01-01T00:00:00Z"));
             listRecordsRequest.setUntil(Instant.parse("2016-01-10T00:00:00Z"));
@@ -105,7 +104,6 @@ public class DNBClientTest {
                 }
             }
             sw.close();
-            client.close();
             logger.info("count={}", count.get());
         } catch (ConnectException | ExecutionException e) {
             logger.warn("skipped, can not connect");

oai-client/src/test/java/org/xbib/oai/client/DOAJClientTest.java

@@ -41,9 +41,8 @@ public class DOAJClientTest {
 
     @Test
     public void testListRecordsDOAJ() throws Exception {
-        try {
         // will redirect to https://doaj.org/oai
-            OAIClient oaiClient = new DefaultOAIClient().setURL(new URL("http://doaj.org/oai"), true);
+        try (DefaultOAIClient oaiClient = new DefaultOAIClient().setURL(new URL("http://doaj.org/oai"), true)) {
             IdentifyRequest identifyRequest = oaiClient.newIdentifyRequest();
             HttpClient client = oaiClient.getHttpClient();
             AggregatedHttpMessage response = client.execute(HttpHeaders.of(HttpMethod.GET, identifyRequest.getPath())
@@ -129,7 +128,6 @@ public class DOAJClientTest {
                 }
             }
             fileWriter.close();
-            oaiClient.close();
             logger.info("count={}", count.get());
             assertTrue(count.get() > 0L);
         } catch (ConnectException | ExecutionException e) {

oai-common/build.gradle

@@ -1,3 +1,3 @@
 dependencies {
-    compile "org.xbib:content-rdf:1.0.4"
+    compile "org.xbib:content-rdf:1.0.5"
 }

oai-common/config/checkstyle/checkstyle.xml

@@ -56,7 +56,7 @@ page at http://checkstyle.sourceforge.net/config.html -->
             <!-- Checks for out of order import statements. -->
 
             <property name="severity" value="warning"/>
-            <property name="groups" value="com,junit,net,org,java,javax"/>
+            <property name="groups" value="com,io,junit,net,org,java,javax"/>
             <!-- This ensures that static imports go first. -->
             <property name="option" value="top"/>
             <property name="tokens" value="STATIC_IMPORT, IMPORT"/>

oai-server/config/checkstyle/checkstyle.xml

@@ -56,7 +56,7 @@ page at http://checkstyle.sourceforge.net/config.html -->
             <!-- Checks for out of order import statements. -->
 
             <property name="severity" value="warning"/>
-            <property name="groups" value="com,junit,net,org,java,javax"/>
+            <property name="groups" value="com,io,junit,net,org,java,javax"/>
             <!-- This ensures that static imports go first. -->
             <property name="option" value="top"/>
             <property name="tokens" value="STATIC_IMPORT, IMPORT"/>