working on path events

event-common/src/main/java/org/xbib/event/common/EventManager.java

@@ -13,7 +13,6 @@ import java.util.ServiceLoader;
 import org.xbib.datastructures.json.tiny.Json;
 import org.xbib.event.Event;
 import org.xbib.event.EventConsumer;
-import org.xbib.event.FileFollowEvent;
 import org.xbib.event.Listener;
 import org.xbib.event.Payload;
 import org.xbib.event.bus.AsyncEventBus;
@@ -424,9 +423,13 @@ public final class EventManager {
             this.path = path;
             base = getBase(path);
             suffix = getSuffix(path);
-            fileSize = Files.size(path);
-            if (maxFileSize != -1L && fileSize > maxFileSize) {
-                throw new IOException("file size too large");
+            if (Files.exists(path)) {
+                fileSize = Files.size(path);
+                if (maxFileSize != -1L && fileSize > maxFileSize) {
+                    throw new IOException("file size too large");
+                }
+            } else {
+                fileSize = -1L;
             }
             return this;
         }

event-common/src/main/java/org/xbib/event/path/PathEventManagerService.java

@@ -32,8 +32,6 @@ public class PathEventManagerService implements EventManagerService {
 
     private ExecutorService executorService;
 
-    private Path path;
-
     private Map<Future<?>, PathEventService> eventServiceMap;
 
     private List<String> suspendedQueues;
@@ -41,24 +39,21 @@ public class PathEventManagerService implements EventManagerService {
     public PathEventManagerService() {
     }
 
-    @SuppressWarnings("unchecked")
     @Override
     public PathEventManagerService init(EventManager eventManager) {
         Settings settings = eventManager.getSettings();
-        ClassLoader classLoader = eventManager.getClassLoader();
         this.eventBus = eventManager.getEventBus();
         this.executorService = eventManager.getExecutorService();
         this.eventServiceMap = new LinkedHashMap<>();
         this.suspendedQueues = new ArrayList<>();
-        this.path = Paths.get(settings.get("event.pathevent.base", "/var/tmp/pathevent"));
         for (Map.Entry<String, Settings> entry : settings.getGroups("event.path").entrySet()) {
             try {
                 String name = entry.getKey();
                 Settings definition = entry.getValue();
                 if (definition.getAsBoolean("enabled", true)) {
+                    Path path = Paths.get(definition.get("path", "/var/tmp/" + name));
                     TimeValue lifetime = definition.getAsTime("lifetime", TimeValue.timeValueHours(72));
-                    Path p = path.resolve(name);
-                    createPathEventService(name, p, lifetime);
+                    createPathEventService(name, path, lifetime);
                 } else {
                     logger.log(Level.WARNING, "path servive definition not enabled in configuration");
                 }
@@ -109,60 +104,56 @@ public class PathEventManagerService implements EventManagerService {
         suspendedQueues.remove(queue);
     }
 
-    public boolean put(String queue, String key, Map<String,Object> map) throws IOException {
-         return put(queue, key, ".json", Json.toString(map));
+    public boolean put(Path path, String key, Map<String,Object> map) throws IOException {
+         return put(path, key, ".json", Json.toString(map));
     }
 
-    public boolean putIfNotExists(String queue, String key, Map<String,Object> map) throws IOException {
-        if (!exists(queue, key, ".json")) {
-            return put(queue, key, ".json", Json.toString(map));
+    public boolean putIfNotExists(Path path, String key, Map<String,Object> map) throws IOException {
+        if (!exists(path, key, ".json")) {
+            return put(path, key, ".json", Json.toString(map));
         } else {
             return false;
         }
     }
 
-    public boolean put(String queue, String key, String suffix, String string) throws IOException {
+    public boolean put(Path path, String key, String suffix, String string) throws IOException {
         String keyFileName = key + suffix;
-        Path queuePath = path.resolve(queue);
-        if (Files.exists(queuePath.resolve(Event.INCOMING).resolve(keyFileName)) ||
-                Files.exists(queuePath.resolve(Event.SUCCESS).resolve(keyFileName))) {
+        if (Files.exists(path.resolve(Event.INCOMING).resolve(keyFileName)) ||
+                Files.exists(path.resolve(Event.SUCCESS).resolve(keyFileName))) {
             logger.log(Level.WARNING, "key " + key + " already exists");
             return false;
         }
-        Path p = queuePath.resolve(Event.INCOMING).resolve(keyFileName);
+        Path p = path.resolve(Event.INCOMING).resolve(keyFileName);
         try (Writer writer = Files.newBufferedWriter(p)) {
             writer.write(string);
         }
         // obligatory purge. This is hacky.
         eventServiceMap.forEach((k, v) -> {
-            if (v.getName().equals(queue)) {
-                try {
-                    v.purge();
-                } catch (IOException e) {
-                    throw new UncheckedIOException(e);
-                }
+            try {
+                v.purge();
+            } catch (IOException e) {
+                throw new UncheckedIOException(e);
             }
         });
         return true;
     }
 
-    public boolean exists(String queue, String key, String suffix) {
+    public boolean exists(Path path, String key, String suffix) {
         String keyFileName = key + suffix;
-        Path queuePath = path.resolve(queue);
-        return Files.exists(queuePath.resolve(Event.INCOMING).resolve(keyFileName)) ||
-                Files.exists(queuePath.resolve(Event.SUCCESS).resolve(keyFileName));
+        return Files.exists(path.resolve(Event.INCOMING).resolve(keyFileName)) ||
+                Files.exists(path.resolve(Event.SUCCESS).resolve(keyFileName));
     }
 
-    public long sizeOfIncoming(String queue) throws IOException {
-        return sizeOf(path.resolve(queue).resolve(Event.INCOMING));
+    public long sizeOfIncoming(Path path) throws IOException {
+        return sizeOf(path.resolve(Event.INCOMING));
     }
 
-    public long sizeOfSuccess(String queue) throws IOException {
-        return sizeOf(path.resolve(queue).resolve(Event.SUCCESS));
+    public long sizeOfSuccess(Path path) throws IOException {
+        return sizeOf(path.resolve(Event.SUCCESS));
     }
 
-    public long sizeOfFail(String queue) throws IOException {
-        return sizeOf(path.resolve(queue).resolve(Event.FAIL));
+    public long sizeOfFail(Path path) throws IOException {
+        return sizeOf(path.resolve(Event.FAIL));
     }
 
     public static long sizeOf(Path path) throws IOException {

event-common/src/test/java/org/xbib/event/generic/GenericEventManagerTest.java

@@ -16,13 +16,14 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 public class GenericEventManagerTest {
 
     private static final Logger logger = Logger.getLogger(GenericEventManagerTest.class.getName());
 
     @Test
-    void testSimpleGenericEvent() {
+    void testSimpleGenericEvent() throws InterruptedException {
         TestEventConsumer consumer = new TestEventConsumer();
         EventManager eventManager = EventManager.builder()
                 .register(consumer)
@@ -32,10 +33,11 @@ public class GenericEventManagerTest {
                 .setListener(e -> logger.log(Level.INFO, "received event " + e))
                 .build();
         eventManager.getGenericEventManagerService().post(event);
+        // we must wait for a certain time because we do not use a future
+        Thread.sleep(500L);
         assertEquals(1, consumer.getCount());
     }
 
-
     @Test
     void testGenericEventWithWaitForSubscriber() throws InterruptedException, ExecutionException, TimeoutException {
         TestEventConsumer consumer = new TestEventConsumer();
@@ -52,6 +54,7 @@ public class GenericEventManagerTest {
                 .build();
         eventManager.getGenericEventManagerService().post(event);
         Event e = future.get(1000L, TimeUnit.MILLISECONDS);
+        assertNotNull(e);
     }
 
     @Test
@@ -76,8 +79,9 @@ public class GenericEventManagerTest {
         eventManager.getGenericEventManagerService().post((GenericEventImpl) event, future);
         Event e = future.get(5L, TimeUnit.SECONDS);
         if (e != null) {
-            logger.log(Level.INFO, "the event " + e + " was received by all consumers, continuing");
+            logger.log(Level.INFO, "the event " + e + " was received by all consumers");
         }
+        assertNotNull(e);
     }
 
     private static class TestEventConsumer implements EventConsumer {

event-common/src/test/java/org/xbib/event/path/FileFollowEventManagerTest.java

@@ -28,13 +28,14 @@ public class FileFollowEventManagerTest {
                 .setSettings(settings)
                 .register(consumer)
                 .build();
-        Thread.sleep(5000L);
-        try (BufferedWriter bufferedWriter = Files.newBufferedWriter(path.resolve("test.txt"))) {
+        Thread.sleep(1000L);
+        Path testTxt = path.resolve("test.txt");
+        try (BufferedWriter bufferedWriter = Files.newBufferedWriter(testTxt)) {
             bufferedWriter.write("Hello");
             logger.log(Level.INFO, "Hello written");
         }
-        Thread.sleep(5000L);
-        Files.delete(path.resolve("test.txt"));
+        Thread.sleep(1000L);
+        Files.delete(testTxt);
         Files.delete(path);
         eventManager.close();
     }

event-common/src/test/java/org/xbib/event/path/PathEventManagerTest.java

@@ -0,0 +1,41 @@
+package org.xbib.event.path;
+
+import org.junit.jupiter.api.Test;
+import org.xbib.event.common.EventManager;
+import org.xbib.settings.Settings;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class PathEventManagerTest {
+
+    private static final Logger logger = Logger.getLogger(PathEventManagerTest.class.getName());
+
+    @Test
+    public void testPathEvents() throws IOException, InterruptedException {
+        Path path = Files.createTempDirectory("testpath");
+        TestPathEventConsumer consumer = new TestPathEventConsumer();
+        Settings settings = Settings.settingsBuilder()
+                .put("event.path.testpathevent.enabled", "true")
+                .put("event.path.testpathevent.path", path.toString())
+                .build();
+        EventManager eventManager = EventManager.builder()
+                .setSettings(settings)
+                .register(consumer)
+                .build();
+        Thread.sleep(1000L);
+        Path testTxt = path.resolve("incoming").resolve("test.txt");
+        try (BufferedWriter bufferedWriter = Files.newBufferedWriter(testTxt)) {
+            bufferedWriter.write("Hello");
+            logger.log(Level.INFO, "Hello written");
+        }
+        Thread.sleep(1000L);
+        Files.delete(testTxt);
+        Files.delete(path);
+        eventManager.close();
+    }
+}

event-common/src/test/java/org/xbib/event/path/TestPathEventConsumer.java

@@ -0,0 +1,20 @@
+package org.xbib.event.path;
+
+import org.xbib.event.EventConsumer;
+import org.xbib.event.PathEvent;
+import org.xbib.event.bus.AllowConcurrentEvents;
+import org.xbib.event.bus.Subscribe;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class TestPathEventConsumer implements EventConsumer {
+
+    private static final Logger logger = Logger.getLogger(TestPathEventConsumer.class.getName());
+
+    @Subscribe
+    @AllowConcurrentEvents
+    void onEvent(PathEvent event) {
+        logger.log(Level.INFO, "received path event, path = " + event.getPath() + " content = " + event.getMessage());
+    }
+}