List of receiveNoWait() Examples

Examples of receiveNoWait()

javax.jms.JMSConsumer.receiveNoWait()
Receives the next message if one is immediately available. @return the next message produced for this {@code JMSConsumer}, or null if one is not available @exception JMSRuntimeException if the JMS provider fails to receive the nextmessage due to some internal error.
javax.jms.MessageConsumer.receiveNoWait()
javax.jms.QueueReceiver.receiveNoWait()
javax.jms.TopicSubscriber.receiveNoWait()
org.apache.activemq.MessageAvailableConsumer.receiveNoWait()
org.apache.camel.ConsumerTemplate.receiveNoWait()
Receives from the endpoint, not waiting for a response if non exists.
Important: See {@link #doneUoW(Exchange)} @param endpointUri the endpoint to receive from @return the returned exchange, or null if no response
org.apache.camel.PollingConsumer.receiveNoWait()
Attempts to receive a message exchange immediately without waiting and returning null if a message exchange is not available yet. @return the message exchange if one is immediately available otherwisenull
org.jbpm.msg.db.DbMessageService.receiveNoWait()

Examples of javax.jms.QueueReceiver.receiveNoWait()

         message = session.createTextMessage("OK");
         sender.send(message);
         // Sleep 6 seconds
         Thread.sleep(6*1000);
         // Try to receive the OK message
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("5 Second Expiration", message.getText());
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("OK", message.getText());
         assertTrue("Didn't expect anymore messages", receiver.receiveNoWait() == null);
      }

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Examples of javax.jms.QueueReceiver.receiveNoWait()

         // Sleep 6 seconds
         Thread.sleep(6*1000);
         // Try to receive the OK message
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("5 Second Expiration", message.getText());
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("OK", message.getText());
         assertTrue("Didn't expect anymore messages", receiver.receiveNoWait() == null);
      }
      finally
      {

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Examples of javax.jms.QueueReceiver.receiveNoWait()

         // Try to receive the OK message
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("5 Second Expiration", message.getText());
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("OK", message.getText());
         assertTrue("Didn't expect anymore messages", receiver.receiveNoWait() == null);
      }
      finally
      {
         disconnect();
      }

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Examples of javax.jms.QueueReceiver.receiveNoWait()

      //To implement receiveNoWait otherwise would be very costly
      //Also other messaging systems e.g. Sun implement it this way


      Thread.sleep(1000);


      Message message = receiver.receiveNoWait();
      int messagecounter=0;


      while( message != null )
      {
         message = receiver.receiveNoWait();

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Examples of javax.jms.QueueReceiver.receiveNoWait()

      Message message = receiver.receiveNoWait();
      int messagecounter=0;


      while( message != null )
      {
         message = receiver.receiveNoWait();
         messagecounter++;
      }


      if ( messagecounter != 20 )
      {

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Examples of javax.jms.QueueReceiver.receiveNoWait()

      session.recover();


      // See previous note on sleep
      Thread.sleep(1000);


      message = receiver.receiveNoWait();
      messagecounter=0;


      while( message != null )
      {
         if ( !message.getJMSRedelivered() )

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Examples of javax.jms.QueueReceiver.receiveNoWait()

            throw new Exception ( "Message was not marked as redelivered! messagecounter=" + messagecounter );
         }


         message.acknowledge();
         messagecounter++;
         message = receiver.receiveNoWait();
      }


      if ( messagecounter != 20 )
      {
         throw new Exception ( "Not all unacknowledged messages were redelivered! messagecounter=" + messagecounter );

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Examples of javax.jms.QueueReceiver.receiveNoWait()

      QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
      Queue queue = (Queue)context.lookup(TEST_QUEUE);


      QueueReceiver receiver = session.createReceiver(queue);
      queueConnection.start();
      Message message = receiver.receiveNoWait();
      int c = 0;
      while (message != null)
      {
         message = receiver.receiveNoWait();
         c++;

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Examples of javax.jms.QueueReceiver.receiveNoWait()

      queueConnection.start();
      Message message = receiver.receiveNoWait();
      int c = 0;
      while (message != null)
      {
         message = receiver.receiveNoWait();
         c++;
      }


      if (c != 0)
         getLog().debug("  Drained " + c + " messages from the queue");

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Examples of javax.jms.QueueReceiver.receiveNoWait()

            PrintWriter out = arg1.getWriter();
            QueueConnection connection = qcf.createQueueConnection();
            connection.start();
            QueueSession session = connection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
            QueueReceiver queueReceiver = session.createReceiver(queue);
            Message msg = queueReceiver.receiveNoWait();


            if ( msg instanceof TextMessage ) {
                TextMessage txtMsg = (TextMessage)msg;
                System.out.println("Message : "+txtMsg.getText());
                out.println("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>");

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