Examples of QueueReceiver

com.spidercache.queue.QueueReceiver
javax.jms.QueueReceiver
@version $Rev: 46019 $ $Date: 2004-09-14 03:56:06 -0600 (Tue, 14 Sep 2004) $
ptolemy.actor.QueueReceiver
A first-in, first-out (FIFO) queue receiver with variable capacity and optional history. Tokens are put into the receiver with the put() method, and removed from the receiver with the get() method. The token removed is the oldest one in the receiver. By default, the capacity is unbounded, but it can be set to any nonnegative size. If the history capacity is greater than zero (or infinite, indicated by a capacity of INFINITE_CAPACITY), then tokens removed from the receiver are stored in a history queue rather than simply removed. By default, the history capacity is zero. @author Edward A. Lee, Lukito Muliadi, Xiaojun Liu @version $Id: QueueReceiver.java,v 1.76 2006/03/30 16:34:53 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Green (eal) @Pt.AcceptedRating Green (liuj) @see ptolemy.actor.util.FIFOQueue

Examples of javax.jms.QueueReceiver

      final CountDown counter1 = new CountDown(3);


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


      QueueReceiver receiver = session.createReceiver(queue);
      receiver.setMessageListener(new MessageListener()
      {
         public void onMessage(Message msg)
         {
            Logger log = Logger.getLogger(getClass().getName());
            log.debug("ML");
            try
            {
               if (msg instanceof TextMessage)
               {
                  log.debug(((TextMessage) msg).getText());
                  counter1.release();
               }
            }
            catch (Exception e)
            {
            }
         }
      });


      QueueSender sender = session.createSender(queue);


      TextMessage message = session.createTextMessage();
      message.setText("Normal message");
      sender.send(message, DeliveryMode.NON_PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.NON_PERSISTENT, 4, 0);
      message.setText("Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 4, 0);
      message.setText("High Priority Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 10, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 10, 0);


      // Wait for the msgs to be received
      counter1.acquire();
      log.debug("MessageListener1 received the TMs sent");


      final CountDown counter2 = new CountDown(2);
      receiver.setMessageListener(new MessageListener()
      {
         public void onMessage(Message msg)
         {
            Logger log = Logger.getLogger(getClass().getName());
            log.debug("ML 2");
            try
            {
               if (msg instanceof TextMessage)
               {
                  log.debug(((TextMessage) msg).getText());
                  counter2.release();
               }
            }
            catch (Exception e)
            {
            }
         }
      });


      message.setText("Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 4, 0);
      message.setText("High Priority Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 10, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 10, 0);


      // Wait for the msgs to be received
      counter2.acquire();
      log.debug("MessageListener2 received the TMs sent");


      receiver.setMessageListener(null);


      message.setText("Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 4, 0);
      message.setText("High Priority Persistent message");

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Examples of javax.jms.QueueReceiver

         queueConnection.stop();


         QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
         Queue queue = (Queue) context.lookup(TEST_QUEUE);
         QueueSender sender = session.createSender(queue);
         QueueReceiver receiver = session.createReceiver(queue);


         // Send a message that has expired
         TextMessage message = session.createTextMessage("Outdated");
         sender.send(message, DeliveryMode.PERSISTENT, 4, 1);
         Thread.sleep(100);


         // Send a message that has not expired
         message = session.createTextMessage("OK");
         sender.send(message);


         // Try to receive the message the not expired message
         queueConnection.start();
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("OK", message.getText());


         // Should be no more
         assertTrue("Didn't expect anymore messages", receiver.receiveNoWait() == null);
      }
      finally
      {
         disconnect();
      }

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Examples of javax.jms.QueueReceiver

         drainQueue();


         QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
         Queue queue = (Queue) context.lookup(TEST_QUEUE);
         QueueSender sender = session.createSender(queue);
         QueueReceiver receiver = session.createReceiver(queue);


         // Send a message that expires in 5 seconds
         TextMessage message = session.createTextMessage("5 Second Expiration");
         sender.send(message, DeliveryMode.PERSISTENT, 4, 5*1000);
         // Send a message that has not expired
         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("OK", message.getText());


         // Should be no more
         assertTrue("Didn't expect anymore messages", receiver.receiveNoWait() == null);


         // Send a message that expires in 10 seconds
         message = session.createTextMessage("10 Second Expiration");
         sender.send(message, DeliveryMode.PERSISTENT, 4, 10*1000);
         // Send a message that has not expired
         message = session.createTextMessage("OK");
         sender.send(message);
         // Sleep 1 seconds
         Thread.sleep(1*1000);
         // Try to receive the messages
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("10 Second Expiration", message.getText());
         message = (TextMessage) receiver.receiveNoWait();
         assertEquals("OK", message.getText());


         // Should be no more
         assertTrue("Didn't expect anymore messages", receiver.receiveNoWait() == null);
         
         // Test that JMSExpiration has no affect
         message = session.createTextMessage("5 Second Expiration");
         message.setJMSExpiration(System.currentTimeMillis() + 5*1000);
         sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
         // Send a message that has not expired
         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);
      }
      finally
      {
         disconnect();
      }

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Examples of javax.jms.QueueReceiver

         queueConnection.stop();


         QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
         Queue queue = (Queue) context.lookup(TEST_QUEUE);
         QueueSender sender = session.createSender(queue);
         QueueReceiver receiver = session.createReceiver(queue);


         // Send a message that has expired
         TextMessage message = session.createTextMessage("Outdated");
         sender.send(message, DeliveryMode.PERSISTENT, 4, 1);
         Thread.sleep(100);


         // Send a message that has not expired
         message = session.createTextMessage("OK");
         sender.send(message);


         // Try to receive the message the not expired message
         final Synch synch = new Synch();
         MessageListener messagelistener = new MessageListener()
         {
            public void onMessage(Message message)
            {
               listenOutdated(message, synch);
            }
         };
         receiver.setMessageListener(messagelistener);
         queueConnection.start();


         synch.doWait(10000);
         assertEquals("OK", synch.getText());
      }

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Examples of javax.jms.QueueReceiver

   private void drainQueue() throws Exception
   {
      QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
      Queue queue = (Queue)context.lookup(TEST_QUEUE);


      QueueReceiver receiver = session.createReceiver(queue);
      Message message = receiver.receive( 1000 );


      int c=0;
      while( message != null )
      {
         message = receiver.receive( 1000 );
         c++;
      }


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

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Examples of javax.jms.QueueReceiver

      session.close();
      queueConnection.stop();
      session = queueConnection.createQueueSession( false, Session.CLIENT_ACKNOWLEDGE );


      //create our receiver
      QueueReceiver receiver = session.createReceiver( queue );
      MessageListener messagelistener = new MessageListener()
      {
         public void onMessage(Message message)
         {
            processMessage( message );
         }
      };


      receiver.setMessageListener( messagelistener );
      queueConnection.start();


      //since we put in 20 messages and recovered after receiving 20 we should receive those 20
      //back and get 40 total
      while ( counter < 40 && exception == null )

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Examples of javax.jms.QueueReceiver

      {
         sender.send(session.createObjectMessage(new Integer(i)));
      }


      //create our receiver
      QueueReceiver receiver = session.createReceiver( queue );
      final Synch synch = new Synch();
      MessageListener messagelistener = new MessageListener()
      {
         public void onMessage(Message message)
         {
            checkMessagesInOrder(session, message, synch);
         }
      };


      receiver.setMessageListener( messagelistener );
      queueConnection.start();
      synch.doWait(10000);


      if ( exception != null )
      {

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Examples of javax.jms.QueueReceiver

      session.close();
      queueConnection.stop();
      session = queueConnection.createQueueSession( false, Session.CLIENT_ACKNOWLEDGE );


      //create our receiver
      QueueReceiver receiver = session.createReceiver( queue );
      queueConnection.start();


      Message message = receiver.receive( 1000 );
      int messagecounter=0;
      while( message != null )
      {
         message = receiver.receive( 1000 );
         messagecounter++;
      }


      if ( messagecounter != 20 )
      {
         throw new Exception ( "Not all sent messages were delivered! messagecounter=" + messagecounter );
      }


      //we got all of our messages, let's recover
      session.recover();
      message = receiver.receive();
      messagecounter=0;


      while( message != null )
      {
         if ( !message.getJMSRedelivered() )
         {
            throw new Exception ( "Message was not marked as redelivered! messagecounter=" + messagecounter );
         }


         message.acknowledge();
         messagecounter++;


         //workaround to keep from timing out since there are no more message on the server
         if ( messagecounter < 15 )
         {
            message = receiver.receive();
         }
         else
         {
            message = receiver.receive ( 1000 );
         }
      }


      if ( messagecounter != 20 )
      {

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Examples of javax.jms.QueueReceiver

      session.close();
      queueConnection.stop();
      session = queueConnection.createQueueSession( false, Session.CLIENT_ACKNOWLEDGE );


      //create our receiver
      QueueReceiver receiver = session.createReceiver( queue );
      queueConnection.start();


      Message message = receiver.receive( 1000 );
      int messagecounter=0;


      while( message != null )
      {
         message = receiver.receive( 1000 );
         messagecounter++;
      }


      if ( messagecounter != 20 )
      {
         throw new Exception ( "Not all sent messages were delivered! messagecounter=" + messagecounter );
      }


      //we got all of our messages, let's recover
      session.recover();
      message = receiver.receive(1000);
      messagecounter=0;


      while( message != null )
      {
         if ( !message.getJMSRedelivered() )
         {
            throw new Exception ( "Message was not marked as redelivered! messagecounter=" + messagecounter );
         }


         message.acknowledge();
         messagecounter++;
         message = receiver.receive( 1000 );
      }


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

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Examples of javax.jms.QueueReceiver

      session.close();
      queueConnection.stop();
      session = queueConnection.createQueueSession( false, Session.CLIENT_ACKNOWLEDGE );


      //create our receiver
      QueueReceiver receiver = session.createReceiver( queue );
      queueConnection.start();


      //NOTE! The semantics of receiveNoWait do not guarantee the message is available
      //immediately after the message is sent
      //It will be available some indeterminate time later.
      //This is fine and as per spec.
      //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();
         messagecounter++;
      }


      if ( messagecounter != 20 )
      {
         throw new Exception ( "Not all sent messages were delivered! messagecounter=" + messagecounter );
      }


      //we got all of our messages, let's recover
      session.recover();


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


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


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