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)


      UnitTestCase.expectHornetQException(HornetQException.OBJECT_CLOSED, new HornetQAction()
      {
         public void run() throws HornetQException
         {
            consumer.setMessageHandler(new MessageHandler()
            {
               public void onMessage(final ClientMessage message)
               {
               }
            });

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)
            {
               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)
            {
               onMessageThread = Thread.currentThread();


               if (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.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();
         }


         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 (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.trace("Calling handler.onMessage");
               }
               theHandler.onMessage(message);


               if (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.trace("Handler.onMessage done");
               }

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)
            {
               onMessageThread = Thread.currentThread();


               if (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.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();
         }


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


         if (message != null)
         {
            boolean expired = message.isExpired();


            flowControlBeforeConsumption(message);


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


               if (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.trace("Calling handler.onMessage");
               }
               theHandler.onMessage(message);


               if (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.trace("Handler.onMessage done");
               }

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();
         }


         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 (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.trace("Calling handler.onMessage");
               }
               theHandler.onMessage(message);


               if (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.trace("Handler.onMessage done");
               }

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


      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 (ClientConsumerImpl.trace)
               {
                  ClientConsumerImpl.log.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

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