Package org.apache.qpid.server.queue

Examples of org.apache.qpid.server.queue.QueueEntry


    }

    public CompositeData viewMessageContent(long messageId)
            throws IOException, JMException
    {
        QueueEntry entry = getMessage(messageId);
        if(entry == null)
        {
            throw new OperationsException("AMQMessage with message id = " + messageId + " is not in the " + _queue.getName());
        }

        ServerMessage serverMsg = entry.getMessage();
        final int bodySize = (int) serverMsg.getSize();

        byte[] msgContent = new byte[bodySize];

        ByteBuffer buf = ByteBuffer.wrap(msgContent);
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     *
     * @throws AMQException If something goes wrong.
     */
    public void requeue(long deliveryTag) throws AMQException
    {
        QueueEntry unacked = _unacknowledgedMessageMap.remove(deliveryTag);

        if (unacked != null)
        {
            // Mark message redelivered
            unacked.setRedelivered();

            // Ensure message is released for redelivery
            if (!unacked.isQueueDeleted())
            {

                // Ensure message is released for redelivery
                unacked.release();

            }
            else
            {
                _logger.warn(System.identityHashCode(this) + " Requested requeue of message(" + unacked
                          + "):" + deliveryTag + " but no queue defined and no DeadLetter queue so DROPPING message.");

                unacked.discard();
            }
        }
        else
        {
            _logger.warn("Requested requeue of message:" + deliveryTag + " but no such delivery tag exists."
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            }
        }

        for (Map.Entry<Long, QueueEntry> entry : msgToResend.entrySet())
        {
            QueueEntry message = entry.getValue();
            long deliveryTag = entry.getKey();



            ServerMessage msg = message.getMessage();
            AMQQueue queue = message.getQueue();

            // Our Java Client will always suspend the channel when resending!
            // If the client has requested the messages be resent then it is
            // their responsibility to ensure that thay are capable of receiving them
            // i.e. The channel hasn't been server side suspended.
            // if (isSuspended())
            // {
            // _logger.info("Channel is suspended so requeuing");
            // //move this message to requeue
            // msgToRequeue.add(message);
            // }
            // else
            // {
            // release to allow it to be delivered

            // Without any details from the client about what has been processed we have to mark
            // all messages in the unacked map as redelivered.
            message.setRedelivered();

            Subscription sub = message.getDeliveredSubscription();

            if (sub != null)
            {

                if(!queue.resend(message,sub))
                {
                    msgToRequeue.put(deliveryTag, message);
                }
            }
            else
            {

                if (_logger.isInfoEnabled())
                {
                    _logger.info("DeliveredSubscription not recorded so just requeueing(" + message.toString()
                              + ")to prevent loss");
                }
                // move this message to requeue
                msgToRequeue.put(deliveryTag, message);
            }
        } // for all messages
        // } else !isSuspend

        if (_logger.isInfoEnabled())
        {
            if (!msgToRequeue.isEmpty())
            {
                _logger.info("Preparing (" + msgToRequeue.size() + ") message to requeue to.");
            }
        }

        // Process Messages to Requeue at the front of the queue
        for (Map.Entry<Long, QueueEntry> entry : msgToRequeue.entrySet())
        {
            QueueEntry message = entry.getValue();
            long deliveryTag = entry.getKey();
            _unacknowledgedMessageMap.remove(deliveryTag);

            message.setRedelivered();
            message.release();

        }
    }
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         */
        @Override
        public void enqueue(ServerMessage msg, boolean sync, PostEnqueueAction action) throws AMQException
        {
            messages.add( new HeadersExchangeTest.Message((AMQMessage) msg));
            final QueueEntry queueEntry = new QueueEntry()
            {

                public AMQQueue getQueue()
                {
                    return null;
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     *
     * @throws AMQException If something goes wrong.
     */
    public void requeue(long deliveryTag) throws AMQException
    {
        QueueEntry unacked = _unacknowledgedMessageMap.remove(deliveryTag);

        if (unacked != null)
        {
            // Mark message redelivered
            unacked.setRedelivered();

            // Ensure message is released for redelivery
            if (!unacked.isQueueDeleted())
            {

                // Ensure message is released for redelivery
                unacked.release();

            }
            else
            {
                _logger.warn(System.identityHashCode(this) + " Requested requeue of message(" + unacked
                          + "):" + deliveryTag + " but no queue defined and no DeadLetter queue so DROPPING message.");

                unacked.discard();
            }
        }
        else
        {
            _logger.warn("Requested requeue of message:" + deliveryTag + " but no such delivery tag exists."
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    }

    public boolean isMaxDeliveryCountEnabled(final long deliveryTag)
    {
        final QueueEntry queueEntry = _unacknowledgedMessageMap.get(deliveryTag);
        if (queueEntry != null)
        {
            final int maximumDeliveryCount = queueEntry.getQueue().getMaximumDeliveryCount();
            return maximumDeliveryCount > 0;
        }

        return false;
    }
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        return false;
    }

    public boolean isDeliveredTooManyTimes(final long deliveryTag)
    {
        final QueueEntry queueEntry = _unacknowledgedMessageMap.get(deliveryTag);
        if (queueEntry != null)
        {
            final int maximumDeliveryCount = queueEntry.getQueue().getMaximumDeliveryCount();
            final int numDeliveries = queueEntry.getDeliveryCount();
            return maximumDeliveryCount != 0 && numDeliveries >= maximumDeliveryCount;
        }

        return false;
    }
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            }
        }

        for (Map.Entry<Long, QueueEntry> entry : msgToResend.entrySet())
        {
            QueueEntry message = entry.getValue();
            long deliveryTag = entry.getKey();

            //Amend the delivery counter as the client hasn't seen these messages yet.
            message.decrementDeliveryCount();

            AMQQueue queue = message.getQueue();

            // Without any details from the client about what has been processed we have to mark
            // all messages in the unacked map as redelivered.
            message.setRedelivered();

            Subscription sub = message.getDeliveredSubscription();

            if (sub != null)
            {

                if(!queue.resend(message,sub))
                {
                    msgToRequeue.put(deliveryTag, message);
                }
            }
            else
            {

                if (_logger.isInfoEnabled())
                {
                    _logger.info("DeliveredSubscription not recorded so just requeueing(" + message.toString()
                              + ")to prevent loss");
                }
                // move this message to requeue
                msgToRequeue.put(deliveryTag, message);
            }
        } // for all messages
        // } else !isSuspend

        if (_logger.isInfoEnabled())
        {
            if (!msgToRequeue.isEmpty())
            {
                _logger.info("Preparing (" + msgToRequeue.size() + ") message to requeue to.");
            }
        }

        // Process Messages to Requeue at the front of the queue
        for (Map.Entry<Long, QueueEntry> entry : msgToRequeue.entrySet())
        {
            QueueEntry message = entry.getValue();
            long deliveryTag = entry.getKey();

            //Amend the delivery counter as the client hasn't seen these messages yet.
            message.decrementDeliveryCount();

            _unacknowledgedMessageMap.remove(deliveryTag);

            message.setRedelivered();
            message.release();

        }
    }
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    }

    public void deadLetter(long deliveryTag) throws AMQException
    {
        final UnacknowledgedMessageMap unackedMap = getUnacknowledgedMessageMap();
        final QueueEntry rejectedQueueEntry = unackedMap.get(deliveryTag);

        if (rejectedQueueEntry == null)
        {
            _logger.warn("No message found, unable to DLQ delivery tag: " + deliveryTag);
            return;
        }
        else
        {
            final ServerMessage msg = rejectedQueueEntry.getMessage();

            final AMQQueue queue = rejectedQueueEntry.getQueue();

            final Exchange altExchange = queue.getAlternateExchange();
            unackedMap.remove(deliveryTag);

            if (altExchange == null)
            {
                _logger.debug("No alternate exchange configured for queue, must discard the message as unable to DLQ: delivery tag: " + deliveryTag);
                _actor.message(_logSubject, ChannelMessages.DISCARDMSG_NOALTEXCH(msg.getMessageNumber(), queue.getName(), msg.getRoutingKey()));
                rejectedQueueEntry.discard();
                return;
            }

            final InboundMessage m = new InboundMessageAdapter(rejectedQueueEntry);

            final List<? extends BaseQueue> destinationQueues = altExchange.route(m);

            if (destinationQueues == null || destinationQueues.isEmpty())
            {
                _logger.debug("Routing process provided no queues to enqueue the message on, must discard message as unable to DLQ: delivery tag: " + deliveryTag);
                _actor.message(_logSubject, ChannelMessages.DISCARDMSG_NOROUTE(msg.getMessageNumber(), altExchange.getName()));
                rejectedQueueEntry.discard();
                return;
            }

            rejectedQueueEntry.routeToAlternate();

            //output operational logging for each delivery post commit
            for (final BaseQueue destinationQueue : destinationQueues)
            {
                _actor.message(_logSubject, ChannelMessages.DEADLETTERMSG(msg.getMessageNumber(), destinationQueue.getNameShortString().asString()));
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                final ServerMessage message = _recoveredMessages.get(messageId);
                _unusedMessages.remove(messageId);

                if(message != null)
                {
                    final QueueEntry entry = queue.getMessageOnTheQueue(messageId);

                    entry.acquire();

                    branch.dequeue(queue, message);

                    branch.addPostTransactionAcion(new ServerTransaction.Action()
                    {

                        public void postCommit()
                        {
                            entry.discard();
                        }

                        public void onRollback()
                        {
                            entry.release();
                        }
                    });
                }
                else
                {
View Full Code Here

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