Examples of org.hornetq.core.server.MessageReference

org.hornetq.core.server.MessageReference
A reference to a message. Channels store message references rather than the messages themselves. @author Ovidiu Feodorov @author Tim Fox @version $Revision: 3020 $

            if (holder.iter == null)
            {
               holder.iter = messageReferences.iterator();
            }


            MessageReference ref;


            if (holder.iter.hasNext())
            {
               ref = holder.iter.next();
            }
            else
            {
               ref = null;
            }


            if (ref == null)
            {
               nullRefCount++;
            }
            else
            {
               if (checkExpired(ref))
               {
                  if (isTrace)
                  {
                     log.trace("Reference " + ref + " being expired");
                  }
                  holder.iter.remove();


                  refRemoved(ref);


                  handled++;


                  continue;
               }


               Consumer groupConsumer = null;


               if (isTrace)
               {
                  log.trace("Queue " + this.getName() + " is delivering reference " + ref);
               }


               // If a group id is set, then this overrides the consumer chosen round-robin


               SimpleString groupID = ref.getMessage().getSimpleStringProperty(Message.HDR_GROUP_ID);


               if (groupID != null)
               {
                  groupConsumer = groups.get(groupID);

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      Transaction tx = new TransactionImpl(storageManager);


      while (iter.hasNext())
      {
         MessageReference ref = iter.next();


         ref.getQueue().cancel(tx, ref);
      }


      tx.rollback();


      if (!browseOnly)

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      }
      
      try
      {
   
         MessageReference ref;
         do
         {
            ref = deliveringRefs.poll();
            
            if (log.isTraceEnabled())
            {
               log.trace("ACKing ref " + ref + " on " + this);
            }
   
            if (ref == null)
            {
               
               HornetQException e = new HornetQException(HornetQException.ILLEGAL_STATE, "Could not find reference on consumerID=" +
                                id +
                                ", messageId = " +
                                messageID +
                                " queue = " +
                                messageQueue.getName());
               throw e;
            }
   
            ref.getQueue().acknowledge(tx, ref);
         }
         while (ref.getMessage().getMessageID() != messageID);
         
         if (startedTransaction)
         {
            tx.commit();
         }

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      if (browseOnly)
      {
         return;
      }


      MessageReference ref = removeReferenceByID(messageID);


      if (ref == null)
      {
         throw new IllegalStateException("Cannot find ref to ack " + messageID);
      }


      if (autoCommitAcks)
      {
         ref.getQueue().acknowledge(ref);
      }
      else
      {
         ref.getQueue().acknowledge(tx, ref);
      }
   }

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      // Expiries can come in out of sequence with respect to delivery order


      Iterator<MessageReference> iter = deliveringRefs.iterator();


      MessageReference ref = null;


      while (iter.hasNext())
      {
         MessageReference theRef = iter.next();


         if (theRef.getMessage().getMessageID() == messageID)
         {
            iter.remove();


            ref = theRef;

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            }
         }


         while (iterator.hasNext())
         {
            MessageReference ref = iterator.next();
            try
            {
               HandleStatus status = handle(ref);
               if (status == HandleStatus.BUSY)
               {

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   public MessageReference reroute(final ServerMessage message, final Queue queue, final Transaction tx) throws Exception
   {
      setPagingStore(message);


      MessageReference reference = message.createReference(queue);


      if (message.containsProperty(Message.HDR_SCHEDULED_DELIVERY_TIME))
      {
         Long scheduledDeliveryTime = message.getLongProperty(Message.HDR_SCHEDULED_DELIVERY_TIME);
         reference.setScheduledDeliveryTime(scheduledDeliveryTime);
      }


      message.incrementDurableRefCount();


      message.incrementRefCount();

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            continue;
         }


         for (Queue queue : entry.getValue().getNonDurableQueues())
         {
            MessageReference reference = message.createReference(queue);


            refs.add(reference);


            if (message.containsProperty(Message.HDR_SCHEDULED_DELIVERY_TIME))
            {
               Long scheduledDeliveryTime = message.getLongProperty(Message.HDR_SCHEDULED_DELIVERY_TIME);


               reference.setScheduledDeliveryTime(scheduledDeliveryTime);
            }


            message.incrementRefCount();
         }


         Iterator<Queue> iter = entry.getValue().getDurableQueues().iterator();


         while (iter.hasNext())
         {
            Queue queue = iter.next();


            MessageReference reference = message.createReference(queue);


            refs.add(reference);


            if (message.containsProperty(Message.HDR_SCHEDULED_DELIVERY_TIME))
            {
               Long scheduledDeliveryTime = message.getLongProperty(Message.HDR_SCHEDULED_DELIVERY_TIME);


               reference.setScheduledDeliveryTime(scheduledDeliveryTime);
            }


            if (message.isDurable())
            {
               int durableRefCount = message.incrementDurableRefCount();

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            if (scheduledDeliveryTime != 0)
            {
               record.message.putLongProperty(Message.HDR_SCHEDULED_DELIVERY_TIME, scheduledDeliveryTime);
            }


            MessageReference ref = postOffice.reroute(record.message, queue, null);


            ref.setDeliveryCount(record.deliveryCount);


            if (scheduledDeliveryTime != 0)
            {
               record.message.removeProperty(Message.HDR_SCHEDULED_DELIVERY_TIME);
            }

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                  if (queue == null)
                  {
                     throw new IllegalStateException("Cannot find queue with id " + encoding.queueID);
                  }


                  MessageReference removed = queue.removeReferenceWithID(messageID);


                  if (removed == null)
                  {
                     log.warn("Failed to remove reference for " + messageID);
                  }

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Related Classes of org.hornetq.core.server.MessageReference

org.hornetq.core.management.impl.QueueControlImpl

org.hornetq.core.persistence.impl.journal.JournalStorageManager

org.hornetq.core.postoffice.impl.PostOfficeImpl

org.hornetq.core.server.cluster.impl.BridgeImpl

org.hornetq.core.server.impl.LastValueQueue

org.hornetq.core.server.impl.PostOfficeJournalLoader

org.hornetq.core.server.impl.QueueImpl

org.hornetq.core.server.impl.QueueImpl$ExpiryScanner

org.hornetq.core.server.impl.ScheduledDeliveryHandlerImpl

org.hornetq.core.server.impl.ScheduledDeliveryHandlerImpl$ScheduledDeliveryRunnable

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