Package org.apache.qpid.server.queue

Examples of org.apache.qpid.server.queue.AMQQueue$Context

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        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }

        final AMQQueue queue;
        final AMQShortString routingKey;

        final AMQShortString queueName = body.getQueue();

        if (queueName == null)
        {

            queue = channel.getDefaultQueue();

            if (queue == null)
            {
                throw body.getChannelException(AMQConstant.NOT_FOUND, "No default queue defined on channel and queue was null");
            }

            if (body.getRoutingKey() == null)
            {
                routingKey = AMQShortString.valueOf(queue.getName());
            }
            else
            {
                routingKey = body.getRoutingKey().intern();
            }
        }
        else
        {
            queue = virtualHost.getQueue(queueName.toString());
            routingKey = body.getRoutingKey() == null ? AMQShortString.EMPTY_STRING : body.getRoutingKey().intern();
        }

        if (queue == null)
        {
            throw body.getChannelException(AMQConstant.NOT_FOUND, "Queue " + queueName + " does not exist.");
        }
        final String exchangeName = body.getExchange() == null ? null : body.getExchange().toString();
        final Exchange exch = virtualHost.getExchange(exchangeName);
        if (exch == null)
        {
            throw body.getChannelException(AMQConstant.NOT_FOUND, "Exchange " + exchangeName + " does not exist.");
        }


        try
        {
            if (queue.isExclusive() && !queue.isDurable())
            {
                AMQSessionModel session = queue.getExclusiveOwningSession();
                if (session == null || session.getConnectionModel() != protocolConnection)
                {
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                      "Queue " + queue.getName() + " is exclusive, but not created on this Connection.");
                }
            }

            Map<String,Object> arguments = FieldTable.convertToMap(body.getArguments());
            String bindingKey = String.valueOf(routingKey);
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        AMQChannel channel = protocolConnection.getChannel(channelId);
        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }
        AMQQueue queue;
        if(body.getQueue() == null)
        {

           //get the default queue on the channel:
           queue = channel.getDefaultQueue();

            if(queue == null)
            {
                if(_failIfNotFound)
                {
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED,"No queue specified.");
                }
            }
        }
        else
        {
            queue = virtualHost.getQueue(body.getQueue().toString());
        }

        if(queue == null)
        {
            if(_failIfNotFound)
            {
                throw body.getChannelException(AMQConstant.NOT_FOUND, "Queue " + body.getQueue() + " does not exist.");
            }
        }
        else
        {
                AMQSessionModel session = queue.getExclusiveOwningSession();

                if (queue.isExclusive() && (session == null || session.getConnectionModel() != protocolConnection))
                {
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                      "Queue is exclusive, but not created on this Connection.");
                }

                long purged = queue.clearQueue();


                if(!body.getNowait())
                {
                    channel.sync();
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                              "' for:" + body.getConsumerTag() +
                              " nowait:" + body.getNowait() +
                              " args:" + body.getArguments());
            }

            AMQQueue queue = body.getQueue() == null ? channel.getDefaultQueue() : vHost.getQueue(body.getQueue().intern().toString());

            if (queue == null)
            {
                if (_logger.isDebugEnabled())
                {
                    _logger.debug("No queue for '" + body.getQueue() + "'");
                }
                if (body.getQueue() != null)
                {
                    String msg = "No such queue, '" + body.getQueue() + "'";
                    throw body.getChannelException(AMQConstant.NOT_FOUND, msg);
                }
                else
                {
                    String msg = "No queue name provided, no default queue defined.";
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED, msg);
                }
            }
            else
            {
                final AMQShortString consumerTagName;

                if (queue.isExclusive() && !queue.isDurable())
                {
                    AMQSessionModel session = queue.getExclusiveOwningSession();
                    if (session == null || session.getConnectionModel() != protocolConnection)
                    {
                        throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                          "Queue " + queue.getName() + " is exclusive, but not created on this Connection.");
                    }
                }

                if (body.getConsumerTag() != null)
                {
                    consumerTagName = body.getConsumerTag().intern(false);
                }
                else
                {
                    consumerTagName = null;
                }

                try
                {
                    if(consumerTagName == null || channel.getSubscription(consumerTagName) == null)
                    {

                        AMQShortString consumerTag = channel.subscribeToQueue(consumerTagName, queue, !body.getNoAck(),
                                                                              body.getArguments(), body.getNoLocal(), body.getExclusive());
                        if (!body.getNowait())
                        {
                            MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
                            AMQMethodBody responseBody = methodRegistry.createBasicConsumeOkBody(consumerTag);
                            protocolConnection.writeFrame(responseBody.generateFrame(channelId));

                        }
                    }
                    else
                    {
                        AMQShortString msg = new AMQShortString("Non-unique consumer tag, '" + body.getConsumerTag() + "'");

                        MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
                        AMQMethodBody responseBody = methodRegistry.createConnectionCloseBody(AMQConstant.NOT_ALLOWED.getCode(),    // replyCode
                                                                 msg,               // replytext
                                                                 body.getClazz(),
                                                                 body.getMethod());
                        protocolConnection.writeFrame(responseBody.generateFrame(0));
                    }

                }
                catch (org.apache.qpid.AMQInvalidArgumentException ise)
                {
                    _logger.debug("Closing connection due to invalid selector");

                    MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
                    AMQMethodBody responseBody = methodRegistry.createChannelCloseBody(AMQConstant.ARGUMENT_INVALID.getCode(),
                                                                                       new AMQShortString(ise.getMessage()),
                                                                                       body.getClazz(),
                                                                                       body.getMethod());
                    protocolConnection.writeFrame(responseBody.generateFrame(channelId));


                }
                catch (AMQQueue.ExistingExclusiveSubscription e)
                {
                    throw body.getChannelException(AMQConstant.ACCESS_REFUSED,
                                                   "Cannot subscribe to queue "
                                                   + queue.getName()
                                                   + " as it already has an existing exclusive consumer");
                }
                catch (AMQQueue.ExistingSubscriptionPreventsExclusive e)
                {
                    throw body.getChannelException(AMQConstant.ACCESS_REFUSED,
                                                   "Cannot subscribe to queue "
                                                   + queue.getName()
                                                   + " exclusively as it already has a consumer");
                }

            }
        }
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        else
        {
            queueName = body.getQueue().intern();
        }

        AMQQueue queue;

        //TODO: do we need to check that the queue already exists with exactly the same "configuration"?

        AMQChannel channel = protocolConnection.getChannel(channelId);

        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }

        if(body.getPassive())
        {
            queue = virtualHost.getQueue(queueName.toString());
            if (queue == null)
            {
                String msg = "Queue: " + queueName + " not found on VirtualHost(" + virtualHost + ").";
                throw body.getChannelException(AMQConstant.NOT_FOUND, msg);
            }
            else
            {
                AMQSessionModel owningSession = queue.getExclusiveOwningSession();
                if (queue.isExclusive() && !queue.isDurable()
                    && (owningSession == null || owningSession.getConnectionModel() != protocolConnection))
                {
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                      "Queue " + queue.getName() + " is exclusive, but not created on this Connection.");
                }

                //set this as the default queue on the channel:
                channel.setDefaultQueue(queue);
            }
        }
        else
        {

            try
            {

                queue = createQueue(queueName, body, virtualHost, protocolConnection);
                queue.setAuthorizationHolder(protocolConnection);

                if (body.getExclusive())
                {
                    queue.setExclusiveOwningSession(protocolConnection.getChannel(channelId));
                    queue.setAuthorizationHolder(protocolConnection);

                    if(!body.getDurable())
                    {
                        final AMQQueue q = queue;
                        final AMQProtocolSession.Task sessionCloseTask = new AMQProtocolSession.Task()
                        {
                            public void doTask(AMQProtocolSession session) throws AMQException
                            {
                                q.setExclusiveOwningSession(null);
                            }
                        };
                        protocolConnection.addSessionCloseTask(sessionCloseTask);
                        queue.addQueueDeleteTask(new AMQQueue.Task() {
                            public void doTask(AMQQueue queue) throws AMQException
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        Map<String, Object> arguments =
                QueueArgumentsConverter.convertWireArgsToModel(FieldTable.convertToMap(body.getArguments()));
        String queueNameString = AMQShortString.toString(queueName);
        final UUID id = UUIDGenerator.generateQueueUUID(queueNameString, virtualHost.getName());

        final AMQQueue queue = virtualHost.createQueue(id, queueNameString, durable, owner, autoDelete,
                exclusive, autoDelete, arguments);

        if (exclusive && !durable)
        {
            final AMQProtocolSession.Task deleteQueueTask =
                    new AMQProtocolSession.Task()
                    {
                        public void doTask(AMQProtocolSession session) throws AMQException
                        {
                            if (virtualHost.getQueue(queueName.toString()) == queue)
                            {
                                virtualHost.removeQueue(queue);
                            }
                        }
                    };

            session.addSessionCloseTask(deleteQueueTask);

            queue.addQueueDeleteTask(new AMQQueue.Task()
            {
                public void doTask(AMQQueue queue)
                {
                    session.removeSessionCloseTask(deleteQueueTask);
                }
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        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }
        channel.sync();
        AMQQueue queue;
        if (body.getQueue() == null)
        {

            //get the default queue on the channel:
            queue = channel.getDefaultQueue();
        }
        else
        {
            queue = virtualHost.getQueue(body.getQueue().toString());
        }

        if (queue == null)
        {
            if (_failIfNotFound)
            {
                throw body.getChannelException(AMQConstant.NOT_FOUND, "Queue " + body.getQueue() + " does not exist.");
            }
        }
        else
        {
            if (body.getIfEmpty() && !queue.isEmpty())
            {
                throw body.getChannelException(AMQConstant.IN_USE, "Queue: " + body.getQueue() + " is not empty.");
            }
            else if (body.getIfUnused() && !queue.isUnused())
            {
                // TODO - Error code
                throw body.getChannelException(AMQConstant.IN_USE, "Queue: " + body.getQueue() + " is still used.");
            }
            else
            {
                AMQSessionModel session = queue.getExclusiveOwningSession();
                if (queue.isExclusive() && !queue.isDurable() && (session == null || session.getConnectionModel() != protocolConnection))
                {
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                      "Queue " + queue.getName() + " is exclusive, but not created on this Connection.");
                }

                int purged = virtualHost.removeQueue(queue);

                MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
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                }
            }
            else
            {

                AMQQueue queue = virtualHost.getQueue(queueName.toString());
                if (queue == null)
                {

                    response = methodRegistry.createExchangeBoundOkBody(QUEUE_NOT_FOUND,  // replyCode
                        new AMQShortString("Queue " + queueName + " not found"));  // replyText
                }
                else
                {
                    if (exchange.isBound(queue))
                    {

                        response = methodRegistry.createExchangeBoundOkBody(OK,  // replyCode
                            null);  // replyText
                    }
                    else
                    {

                        response = methodRegistry.createExchangeBoundOkBody(QUEUE_NOT_BOUND,  // replyCode
                            new AMQShortString("Queue " + queueName + " not bound to exchange " + exchangeName));  // replyText
                    }
                }
            }
        }
        else if (queueName != null)
        {
            AMQQueue queue = virtualHost.getQueue(queueName.toString());
            if (queue == null)
            {

                response = methodRegistry.createExchangeBoundOkBody(QUEUE_NOT_FOUND,  // replyCode
                    new AMQShortString("Queue " + queueName + " not found"));  // replyText
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    public void methodReceived(AMQStateManager stateManager, QueueUnbindBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();
        VirtualHost virtualHost = session.getVirtualHost();

        final AMQQueue queue;
        final AMQShortString routingKey;


        AMQChannel channel = session.getChannel(channelId);
        if (channel == null)
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    {
        _subscriptions.remove(sub.getName());
        try
        {
            sub.getSendLock();
            AMQQueue queue = sub.getQueue();
            if(queue != null)
            {
                queue.unregisterSubscription(sub);
            }
        }
        catch (AMQException e)
        {
            // TODO
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        _linkAttachment = linkAttachment;
        final Source source = (Source) linkAttachment.getSource();
        _durability = source.getDurable();
        linkAttachment.setDeliveryStateHandler(this);
        QueueDestination qd = null;
        AMQQueue queue = null;



        boolean noLocal = false;
        JMSSelectorFilter messageFilter = null;

        if(destination instanceof QueueDestination)
        {
            queue = ((QueueDestination) _destination).getQueue();

            if(queue.getAvailableAttributes().contains("topic"))
            {
                source.setDistributionMode(StdDistMode.COPY);
            }

            qd = (QueueDestination) destination;

            Map<Symbol,Filter> filters = source.getFilter();

            Map<Symbol,Filter> actualFilters = new HashMap<Symbol,Filter>();

            if(filters != null)
            {
                for(Map.Entry<Symbol,Filter> entry : filters.entrySet())
                {
                    if(entry.getValue() instanceof NoLocalFilter)
                    {
                        actualFilters.put(entry.getKey(), entry.getValue());
                        noLocal = true;
                    }
                    else if(messageFilter == null && entry.getValue() instanceof org.apache.qpid.amqp_1_0.type.messaging.JMSSelectorFilter)
                    {

                        org.apache.qpid.amqp_1_0.type.messaging.JMSSelectorFilter selectorFilter = (org.apache.qpid.amqp_1_0.type.messaging.JMSSelectorFilter) entry.getValue();
                        try
                        {
                            messageFilter = new JMSSelectorFilter(selectorFilter.getValue());

                            actualFilters.put(entry.getKey(), entry.getValue());
                        }
                        catch (ParseException e)
                        {
                            Error error = new Error();
                            error.setCondition(AmqpError.INVALID_FIELD);
                            error.setDescription("Invalid JMS Selector: " + selectorFilter.getValue());
                            error.setInfo(Collections.singletonMap(Symbol.valueOf("field"), Symbol.valueOf("filter")));
                            throw new AmqpErrorException(error);
                        }
                        catch (SelectorParsingException e)
                        {
                            Error error = new Error();
                            error.setCondition(AmqpError.INVALID_FIELD);
                            error.setDescription("Invalid JMS Selector: " + selectorFilter.getValue());
                            error.setInfo(Collections.singletonMap(Symbol.valueOf("field"), Symbol.valueOf("filter")));
                            throw new AmqpErrorException(error);
                        }


                    }
                }
            }
            source.setFilter(actualFilters.isEmpty() ? null : actualFilters);

            _subscription = new Subscription_1_0(this, qd, source.getDistributionMode() != StdDistMode.COPY);
        }
        else if(destination instanceof ExchangeDestination)
        {
            try
            {

                ExchangeDestination exchangeDestination = (ExchangeDestination) destination;

                boolean isDurable = exchangeDestination.getDurability() == TerminusDurability.CONFIGURATION
                                    || exchangeDestination.getDurability() == TerminusDurability.UNSETTLED_STATE;
                String name;
                if(isDurable)
                {
                    String remoteContainerId = getEndpoint().getSession().getConnection().getRemoteContainerId();
                    remoteContainerId = remoteContainerId.replace("_","__").replace(".", "_:");

                    String endpointName = linkAttachment.getEndpoint().getName();
                    endpointName = endpointName
                                    .replace("_", "__")
                                    .replace(".", "_:")
                                    .replace("(", "_O")
                                    .replace(")", "_C")
                                    .replace("<", "_L")
                                    .replace(">", "_R");
                    name = "qpid_/" + remoteContainerId + "_/" + endpointName;
                }
                else
                {
                    name = UUID.randomUUID().toString();
                }

                queue = _vhost.getQueue(name);
                Exchange exchange = exchangeDestination.getExchange();

                if(queue == null)
                {
                    queue = _vhost.createQueue(
                                UUIDGenerator.generateQueueUUID(name, _vhost.getName()),
                                name,
                                isDurable,
                                null,
                                true,
                                true,
                                true,
                                Collections.EMPTY_MAP);
                }
                else
                {
                    List<Binding> bindings = queue.getBindings();
                    List<Binding> bindingsToRemove = new ArrayList<Binding>();
                    for(Binding existingBinding : bindings)
                    {
                        if(existingBinding.getExchange() != _vhost.getDefaultExchange()
                            && existingBinding.getExchange() != exchange)
                        {
                            bindingsToRemove.add(existingBinding);
                        }
                    }
                    for(Binding existingBinding : bindingsToRemove)
                    {
                        existingBinding.getExchange().removeBinding(existingBinding);
                    }
                }


                String binding = "";

                Map<Symbol,Filter> filters = source.getFilter();
                Map<Symbol,Filter> actualFilters = new HashMap<Symbol,Filter>();
                boolean hasBindingFilter = false;
                if(filters != null && !filters.isEmpty())
                {

                    for(Map.Entry<Symbol,Filter> entry : filters.entrySet())
                    {
                        if(!hasBindingFilter
                           && entry.getValue() instanceof ExactSubjectFilter
                           && exchange.getType() == DirectExchange.TYPE)
                        {
                            ExactSubjectFilter filter = (ExactSubjectFilter) filters.values().iterator().next();
                            source.setFilter(filters);
                            binding = filter.getValue();
                            actualFilters.put(entry.getKey(), entry.getValue());
                            hasBindingFilter = true;
                        }
                        else if(!hasBindingFilter
                                && entry.getValue() instanceof MatchingSubjectFilter
                                && exchange.getType() == TopicExchange.TYPE)
                        {
                            MatchingSubjectFilter filter = (MatchingSubjectFilter) filters.values().iterator().next();
                            source.setFilter(filters);
                            binding = filter.getValue();
                            actualFilters.put(entry.getKey(), entry.getValue());
                            hasBindingFilter = true;
                        }
                        else if(entry.getValue() instanceof NoLocalFilter)
                        {
                            actualFilters.put(entry.getKey(), entry.getValue());
                            noLocal = true;
                        }
                        else if(messageFilter == null && entry.getValue() instanceof org.apache.qpid.amqp_1_0.type.messaging.JMSSelectorFilter)
                        {

                            org.apache.qpid.amqp_1_0.type.messaging.JMSSelectorFilter selectorFilter = (org.apache.qpid.amqp_1_0.type.messaging.JMSSelectorFilter) entry.getValue();
                            try
                            {
                                messageFilter = new JMSSelectorFilter(selectorFilter.getValue());

                                actualFilters.put(entry.getKey(), entry.getValue());
                            }
                            catch (ParseException e)
                            {
                                Error error = new Error();
                                error.setCondition(AmqpError.INVALID_FIELD);
                                error.setDescription("Invalid JMS Selector: " + selectorFilter.getValue());
                                error.setInfo(Collections.singletonMap(Symbol.valueOf("field"), Symbol.valueOf("filter")));
                                throw new AmqpErrorException(error);
                            }
                            catch (SelectorParsingException e)
                            {
                                Error error = new Error();
                                error.setCondition(AmqpError.INVALID_FIELD);
                                error.setDescription("Invalid JMS Selector: " + selectorFilter.getValue());
                                error.setInfo(Collections.singletonMap(Symbol.valueOf("field"), Symbol.valueOf("filter")));
                                throw new AmqpErrorException(error);
                            }


                        }
                    }
                }
                source.setFilter(actualFilters.isEmpty() ? null : actualFilters);

                exchange.addBinding(binding,queue,null);
                source.setDistributionMode(StdDistMode.COPY);

                if(!isDurable)
                {
                    final String queueName = name;
                    final AMQQueue tempQueue = queue;

                    final Connection_1_0.Task deleteQueueTask =
                                            new Connection_1_0.Task()
                                            {
                                                public void doTask(Connection_1_0 session)
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