Examples of org.hornetq.api.core.client.MessageHandler

org.hornetq.api.core.client.MessageHandler
A MessageHandler is used to receive message asynchronously.
To receive messages asynchronously, a MessageHandler is set on a ClientConsumer. Every time the consumer will receive a message, it will call the handler's {@code onMessage()} method. @author Tim Fox @see ClientConsumer#setMessageHandler(MessageHandler)


      ClientMessageInternal message;


      // Must store handler in local variable since might get set to null
      // otherwise while this is executing and give NPE when calling onMessage
      MessageHandler theHandler = handler;


      if (theHandler != null)
      {
         if (rateLimiter != null)
         {
            rateLimiter.limit();
         }


         failedOver = false;


         synchronized (this)
         {
            message = buffer.poll();
         }


         if (message != null)
         {
            if (message.containsProperty(ClientConsumerImpl.FORCED_DELIVERY_MESSAGE))
            {
               //Ignore, this could be a relic from a previous receiveImmediate();
               return;
            }






            boolean expired = message.isExpired();


            flowControlBeforeConsumption(message);


            if (!expired)
            {
               onMessageThread = Thread.currentThread();


               if (isTrace)
               {
                  HornetQClientLogger.LOGGER.trace("Calling handler.onMessage");
               }
               final ClassLoader originalLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>()
               {
                  public ClassLoader run()
                  {
                     ClassLoader originalLoader = Thread.currentThread().getContextClassLoader();


                     Thread.currentThread().setContextClassLoader(contextClassLoader);


                     return originalLoader;
                  }
               });
               try
               {
                  theHandler.onMessage(message);
               }
               finally
               {
                  AccessController.doPrivileged(new PrivilegedAction<Object>()
                  {

View Full Code Here


      ClientMessageInternal message;


      // Must store handler in local variable since might get set to null
      // otherwise while this is executing and give NPE when calling onMessage
      MessageHandler theHandler = handler;


      if (theHandler != null)
      {
         if (rateLimiter != null)
         {
            rateLimiter.limit();
         }


         failedOver = false;


         synchronized (this)
         {
            message = buffer.poll();
         }


         if (message != null)
         {
            if (message.containsProperty(ClientConsumerImpl.FORCED_DELIVERY_MESSAGE))
            {
               //Ignore, this could be a relic from a previous receiveImmediate();
               return;
            }






            boolean expired = message.isExpired();


            flowControlBeforeConsumption(message);


            if (!expired)
            {
               if (isTrace)
               {
                  HornetQClientLogger.LOGGER.trace("Calling handler.onMessage");
               }
               final ClassLoader originalLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>()
               {
                  public ClassLoader run()
                  {
                     ClassLoader originalLoader = Thread.currentThread().getContextClassLoader();


                     Thread.currentThread().setContextClassLoader(contextClassLoader);


                     return originalLoader;
                  }
               });


               onMessageThread = Thread.currentThread();
               try
               {
                  theHandler.onMessage(message);
               }
               finally
               {
                  try
                  {

View Full Code Here

      int winSize = 0;
      ClientConsumer consumer = session.createConsumer(FailoverTestBase.ADDRESS, null, winSize, 100, false);


      final List<ClientMessage> received = new ArrayList<ClientMessage>();


      consumer.setMessageHandler(new MessageHandler()
      {


         public void onMessage(ClientMessage message)
         {
            received.add(message);

View Full Code Here

    public void testMessaging() throws Exception {
        final CountDownLatch latch = new CountDownLatch(1);
        final AtomicReference<ClientMessage> message = new AtomicReference<ClientMessage>();


        ClientConsumer consumer = session.createConsumer(QUEUE_EXAMPLE_QUEUE);
        consumer.setMessageHandler(new MessageHandler() {
            @Override
            public void onMessage(ClientMessage m) {
                try {
                    m.acknowledge();
                    message.set(m);

View Full Code Here

      ClientSessionFactory sfReceive = createInVMFactory();
      sfReceive.setConfirmationWindowSize(100);
      sfReceive.setAckBatchSize(-1);
      ClientSession sessionRec = sfReceive.createSession(false, true, true);
      ClientConsumer consumer = sessionRec.createConsumer(QUEUE);
      consumer.setMessageHandler(new MessageHandler()
      {
         public void onMessage(final ClientMessage message)
         {
            try
            {

View Full Code Here


      session.createQueue(QUEUE, QUEUE, null, false);


      ClientConsumer consumer = session.createConsumer(QUEUE);


      consumer.setMessageHandler(new MessageHandler()
      {
         public void onMessage(final ClientMessage msg)
         {
         }
      });

View Full Code Here


      session.createQueue(QUEUE, QUEUE, null, false);


      ClientConsumer consumer = session.createConsumer(QUEUE);


      consumer.setMessageHandler(new MessageHandler()
      {
         public void onMessage(final ClientMessage msg)
         {
         }
      });

View Full Code Here

            if (useMessageConsumer)
            {
               final CountDownLatch latchDone = new CountDownLatch(numberOfMessages);
               final AtomicInteger errors = new AtomicInteger(0);


               MessageHandler handler = new MessageHandler()
               {
                  int msgCounter;


                  public void onMessage(final ClientMessage message)
                  {

View Full Code Here

         senders.add(sender);
         
         sender.start();
      }
      
      consumer.setMessageHandler(new MessageHandler()
      {
         public void onMessage(ClientMessage message)
         {
            for (Sender sender: senders)
            {

View Full Code Here

         {
            cp.send(sendSession.createMessage(false));
         }
         final CountDownLatch latch = new CountDownLatch(numMessages);
         session.start();
         cc.setMessageHandler(new MessageHandler()
         {
            public void onMessage(final ClientMessage message)
            {
               try
               {

View Full Code Here

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Related Classes of org.hornetq.api.core.client.MessageHandler

org.hornetq.core.client.impl.ClientConsumerImpl

org.hornetq.tests.integration.client.AcknowledgeTest

org.hornetq.tests.integration.client.CommitRollbackTest

org.hornetq.tests.integration.client.ConsumerCloseTest

org.hornetq.tests.integration.client.ConsumerTest

org.hornetq.tests.integration.client.MessageConcurrencyTest

org.hornetq.tests.integration.client.MessageRateTest

org.hornetq.tests.integration.client.PagingTest

org.hornetq.tests.integration.client.ReceiveImmediateTest

org.hornetq.tests.integration.client.ReceiveTest

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