Package org.apache.qpid.server.protocol.v0_8

Examples of org.apache.qpid.server.protocol.v0_8.AMQProtocolSession$Task


        return _instance;
    }

    public void methodReceived(AMQStateManager stateManager, BasicQosBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();
        AMQChannel channel = session.getChannel(channelId);
        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }
        channel.sync();
        channel.setCredit(body.getPrefetchSize(), body.getPrefetchCount());


        MethodRegistry methodRegistry = session.getMethodRegistry();
        AMQMethodBody responseBody = methodRegistry.createBasicQosOkBody();
        session.writeFrame(responseBody.generateFrame(channelId));

    }
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    }

    public void methodReceived(AMQStateManager stateManager, ConnectionSecureOkBody body, int channelId) throws AMQException
    {
        Broker broker = stateManager.getBroker();
        AMQProtocolSession session = stateManager.getProtocolSession();

        SubjectCreator subjectCreator = stateManager.getSubjectCreator();

        SaslServer ss = session.getSaslServer();
        if (ss == null)
        {
            throw new AMQException("No SASL context set up in session");
        }
        MethodRegistry methodRegistry = session.getMethodRegistry();
        SubjectAuthenticationResult authResult = subjectCreator.authenticate(ss, body.getResponse());
        switch (authResult.getStatus())
        {
            case ERROR:
                Exception cause = authResult.getCause();

                _logger.info("Authentication failed:" + (cause == null ? "" : cause.getMessage()));

                // This should be abstracted
                stateManager.changeState(AMQState.CONNECTION_CLOSING);

                ConnectionCloseBody connectionCloseBody =
                        methodRegistry.createConnectionCloseBody(AMQConstant.NOT_ALLOWED.getCode(),
                                                                 AMQConstant.NOT_ALLOWED.getName(),
                                                                 body.getClazz(),
                                                                 body.getMethod());

                session.writeFrame(connectionCloseBody.generateFrame(0));
                disposeSaslServer(session);
                break;
            case SUCCESS:
                if (_logger.isInfoEnabled())
                {
                    _logger.info("Connected as: " + authResult.getSubject());
                }
                stateManager.changeState(AMQState.CONNECTION_NOT_TUNED);

                ConnectionTuneBody tuneBody =
                        methodRegistry.createConnectionTuneBody((Integer)broker.getAttribute(Broker.CONNECTION_SESSION_COUNT_LIMIT),
                                                                BrokerProperties.FRAME_SIZE,
                                                                (Integer)broker.getAttribute(Broker.CONNECTION_HEART_BEAT_DELAY));
                session.writeFrame(tuneBody.generateFrame(0));
                session.setAuthorizedSubject(authResult.getSubject());
                disposeSaslServer(session);
                break;
            case CONTINUE:
                stateManager.changeState(AMQState.CONNECTION_NOT_AUTH);

                ConnectionSecureBody secureBody = methodRegistry.createConnectionSecureBody(authResult.getChallenge());
                session.writeFrame(secureBody.generateFrame(0));
        }
    }
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        return _instance;
    }

    public void methodReceived(AMQStateManager stateManager, BasicRecoverBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();

        _logger.debug("Recover received on protocol session " + session + " and channel " + channelId);
        AMQChannel channel = session.getChannel(channelId);


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

        channel.resend(body.getRequeue());

        // Qpid 0-8 hacks a synchronous -ok onto recover.
        // In Qpid 0-9 we create a separate sync-recover, sync-recover-ok pair to be "more" compliant
        if(session.getProtocolVersion().equals(ProtocolVersion.v8_0))
        {
            MethodRegistry_8_0 methodRegistry = (MethodRegistry_8_0) session.getMethodRegistry();
            AMQMethodBody recoverOk = methodRegistry.createBasicRecoverOkBody();
            channel.sync();
            session.writeFrame(recoverOk.generateFrame(channelId));

        }

    }
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        return _instance;
    }

    public void methodReceived(AMQStateManager stateManager, ConnectionTuneOkBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();

        if (_logger.isDebugEnabled())
        {
            _logger.debug(body);
        }
        stateManager.changeState(AMQState.CONNECTION_NOT_OPENED);
        session.initHeartbeats(body.getHeartbeat());
        session.setMaxFrameSize(body.getFrameMax());

        long maxChannelNumber = body.getChannelMax();
        //0 means no implied limit, except that forced by protocol limitations (0xFFFF)
        session.setMaximumNumberOfChannels( maxChannelNumber == 0 ? 0xFFFFL : maxChannelNumber);
    }
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    {
    }

    public void methodReceived(AMQStateManager stateManager, TxRollbackBody body, final int channelId) throws AMQException
    {
        final AMQProtocolSession session = stateManager.getProtocolSession();

        try
        {
            AMQChannel channel = session.getChannel(channelId);

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



            final MethodRegistry methodRegistry = session.getMethodRegistry();
            final AMQMethodBody responseBody = methodRegistry.createTxRollbackOkBody();

            Runnable task = new Runnable()
            {

                public void run()
                {
                    session.writeFrame(responseBody.generateFrame(channelId));
                }
            };

            channel.rollback(task);
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    {
    }

    public void methodReceived(AMQStateManager stateManager, BasicPublishBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();
        if (_logger.isDebugEnabled())
        {
            _logger.debug("Publish received on channel " + channelId);
        }

        AMQShortString exchangeName = body.getExchange();
        // TODO: check the delivery tag field details - is it unique across the broker or per subscriber?
        if (exchangeName == null)
        {
            exchangeName = ExchangeDefaults.DEFAULT_EXCHANGE_NAME;
        }

        VirtualHost vHost = session.getVirtualHost();
        Exchange exch = vHost.getExchange(exchangeName.toString());
        // if the exchange does not exist we raise a channel exception
        if (exch == null)
        {
            throw body.getChannelException(AMQConstant.NOT_FOUND, "Unknown exchange name");
        }
        else
        {
            // The partially populated BasicDeliver frame plus the received route body
            // is stored in the channel. Once the final body frame has been received
            // it is routed to the exchange.
            AMQChannel channel = session.getChannel(channelId);

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

            MessagePublishInfo info = session.getMethodRegistry().getProtocolVersionMethodConverter().convertToInfo(body);
            info.setExchange(exchangeName);
            channel.setPublishFrame(info, exch);
        }
    }
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    {
    }

    public void methodReceived(AMQStateManager stateManager, BasicConsumeBody body, int channelId) throws AMQException
    {
        AMQProtocolSession protocolConnection = stateManager.getProtocolSession();

        AMQChannel channel = protocolConnection.getChannel(channelId);
        VirtualHost vHost = protocolConnection.getVirtualHost();

        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }
        else
        {
            channel.sync();
            if (_logger.isDebugEnabled())
            {
                _logger.debug("BasicConsume: from '" + body.getQueue() +
                              "' for:" + body.getConsumerTag() +
                              " nowait:" + body.getNowait() +
                              " args:" + body.getArguments());
            }

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

            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.getNameShortString() + " is exclusive, but not created on this Connection.");
                    }
                }

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

    public void methodReceived(AMQStateManager stateManager, QueueUnbindBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();
        VirtualHost virtualHost = session.getVirtualHost();
        QueueRegistry queueRegistry = virtualHost.getQueueRegistry();


        final AMQQueue queue;
        final AMQShortString routingKey;


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

        if (body.getQueue() == null)
        {

            queue = channel.getDefaultQueue();

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

            routingKey = body.getRoutingKey() == null ? null : body.getRoutingKey().intern();

        }
        else
        {
            queue = queueRegistry.getQueue(body.getQueue());
            routingKey = body.getRoutingKey() == null ? null : body.getRoutingKey().intern();
        }

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

        if(exch.getBinding(String.valueOf(routingKey), queue, FieldTable.convertToMap(body.getArguments())) == null)
        {
            throw body.getChannelException(AMQConstant.NOT_FOUND,"No such binding");
        }
        else
        {
            exch.removeBinding(String.valueOf(routingKey), queue, FieldTable.convertToMap(body.getArguments()));
        }


        if (_log.isInfoEnabled())
        {
            _log.info("Binding queue " + queue + " to exchange " + exch + " with routing key " + routingKey);
        }

        final MethodRegistry registry = session.getMethodRegistry();
        final AMQMethodBody responseBody;
        if (registry instanceof MethodRegistry_0_9)
        {
            responseBody = ((MethodRegistry_0_9)registry).createQueueUnbindOkBody();
        }
        else if (registry instanceof MethodRegistry_0_91)
        {
            responseBody = ((MethodRegistry_0_91)registry).createQueueUnbindOkBody();
        }
        else
        {
            // 0-8 does not support QueueUnbind
            throw new AMQException(AMQConstant.COMMAND_INVALID, "QueueUnbind not present in AMQP version: " + session.getProtocolVersion(), null);
        }
        channel.sync();
        session.writeFrame(responseBody.generateFrame(channelId));
    }
View Full Code Here

        return _instance;
    }

    public void methodReceived(AMQStateManager stateManager, QueueDeclareBody body, int channelId) throws AMQException
    {
        final AMQProtocolSession protocolConnection = stateManager.getProtocolSession();
        final AMQSessionModel session = protocolConnection.getChannel(channelId);
        VirtualHost virtualHost = protocolConnection.getVirtualHost();
        QueueRegistry queueRegistry = virtualHost.getQueueRegistry();
        DurableConfigurationStore store = virtualHost.getDurableConfigurationStore();

        final AMQShortString queueName;

        // if we aren't given a queue name, we create one which we return to the client
        if ((body.getQueue() == null) || (body.getQueue().length() == 0))
        {
            queueName = createName();
        }
        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);
        }

        synchronized (queueRegistry)
        {
            queue = queueRegistry.getQueue(queueName);

            AMQSessionModel owningSession = null;

            if (queue != null)
            {
                owningSession = queue.getExclusiveOwningSession();
            }

            if (queue == null)
            {
                if (body.getPassive())
                {
                    String msg = "Queue: " + queueName + " not found on VirtualHost(" + virtualHost + ").";
                    throw body.getChannelException(AMQConstant.NOT_FOUND, msg);
                }
                else
                {
                    queue = createQueue(queueName, body, virtualHost, protocolConnection);
                    queue.setAuthorizationHolder(protocolConnection);
                    if (queue.isDurable() && !queue.isAutoDelete())
                    {
                        DurableConfigurationStoreHelper.createQueue(store, queue, body.getArguments());
                    }
                    if(body.getAutoDelete())
                    {
                        queue.setDeleteOnNoConsumers(true);
                    }
                    queueRegistry.registerQueue(queue);
                    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
                                {
                                    protocolConnection.removeSessionCloseTask(sessionCloseTask);
                                }
                            });
                        }
                    }
                }
            }
            else if (queue.isExclusive() && !queue.isDurable() && (owningSession == null || owningSession.getConnectionModel() != protocolConnection))
            {
                throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                  "Queue " + queue.getNameShortString() + " is exclusive, but not created on this Connection.");
            }
            else if(!body.getPassive() && ((queue.isExclusive()) != body.getExclusive()))
            {

                throw body.getChannelException(AMQConstant.ALREADY_EXISTS,
                                                  "Cannot re-declare queue '" + queue.getNameShortString() + "' with different exclusivity (was: "
                                                    + queue.isExclusive() + " requested " + body.getExclusive() + ")");
            }
            else if (!body.getPassive() && body.getExclusive() && !(queue.isDurable() ? String.valueOf(queue.getOwner()).equals(session.getClientID()) : (owningSession == null || owningSession.getConnectionModel() == protocolConnection)))
            {
                throw body.getChannelException(AMQConstant.ALREADY_EXISTS, "Cannot declare queue('" + queueName + "'), "
                                                                           + "as exclusive queue with same name "
                                                                           + "declared on another client ID('"
                                                                           + queue.getOwner() + "') your clientID('" + session.getClientID() + "')");

            }
            else if(!body.getPassive() && queue.isAutoDelete() != body.getAutoDelete())
            {
                throw body.getChannelException(AMQConstant.ALREADY_EXISTS,
                                                  "Cannot re-declare queue '" + queue.getNameShortString() + "' with different auto-delete (was: "
                                                    + queue.isAutoDelete() + " requested " + body.getAutoDelete() + ")");
            }
            else if(!body.getPassive() && queue.isDurable() != body.getDurable())
            {
                throw body.getChannelException(AMQConstant.ALREADY_EXISTS,
                                                  "Cannot re-declare queue '" + queue.getNameShortString() + "' with different durability (was: "
                                                    + queue.isDurable() + " requested " + body.getDurable() + ")");
            }



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

        if (!body.getNowait())
        {
            channel.sync();
            MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
            QueueDeclareOkBody responseBody =
                    methodRegistry.createQueueDeclareOkBody(queueName,
                                                            queue.getMessageCount(),
                                                            queue.getConsumerCount());
            protocolConnection.writeFrame(responseBody.generateFrame(channelId));

            _logger.info("Queue " + queueName + " declared successfully");
        }
    }
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    {
    }

    public void methodReceived(AMQStateManager stateManager, BasicGetBody body, int channelId) throws AMQException
    {
        AMQProtocolSession protocolConnection = stateManager.getProtocolSession();


        VirtualHost vHost = protocolConnection.getVirtualHost();

        AMQChannel channel = protocolConnection.getChannel(channelId);
        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }
        else
        {
            channel.sync();
            AMQQueue queue = body.getQueue() == null ? channel.getDefaultQueue() : vHost.getQueueRegistry().getQueue(body.getQueue());
            if (queue == null)
            {
                _log.info("No queue for '" + body.getQueue() + "'");
                if(body.getQueue()!=null)
                {
                    throw body.getConnectionException(AMQConstant.NOT_FOUND,
                                                      "No such queue, '" + body.getQueue()+ "'");
                }
                else
                {
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                      "No queue name provided, no default queue defined.");
                }
            }
            else
            {
                if (queue.isExclusive())
                {
                    AMQSessionModel session = queue.getExclusiveOwningSession();
                    if (session == null || session.getConnectionModel() != protocolConnection)
                    {
                        throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                          "Queue is exclusive, but not created on this Connection.");
                    }
                }

                if (!performGet(queue,protocolConnection, channel, !body.getNoAck()))
                {
                    MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
                    // TODO - set clusterId
                    BasicGetEmptyBody responseBody = methodRegistry.createBasicGetEmptyBody(null);


                    protocolConnection.writeFrame(responseBody.generateFrame(channelId));
                }
            }
        }
    }
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