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

Examples of org.apache.qpid.server.protocol.v0_8.handler.TxSelectHandler

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        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();

        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);
        }

        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
                            {
                                protocolConnection.removeSessionCloseTask(sessionCloseTask);
                            }
                        });
                    }
                }

            }
            catch(QueueExistsException qe)
            {

                queue = qe.getExistingQueue();
                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.");
                }
                else if(queue.isExclusive() != body.getExclusive())
                {

                    throw body.getChannelException(AMQConstant.ALREADY_EXISTS,
                            "Cannot re-declare queue '" + queue.getName() + "' with different exclusivity (was: "
                            + queue.isExclusive() + " requested " + body.getExclusive() + ")");
                }
                else if (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(queue.isAutoDelete() != body.getAutoDelete())
                {
                    throw body.getChannelException(AMQConstant.ALREADY_EXISTS,
                                                      "Cannot re-declare queue '" + queue.getName() + "' with different auto-delete (was: "
                                                        + queue.isAutoDelete() + " requested " + body.getAutoDelete() + ")");
                }
                else if(queue.isDurable() != body.getDurable())
                {
                    throw body.getChannelException(AMQConstant.ALREADY_EXISTS,
                                                      "Cannot re-declare queue '" + queue.getName() + "' 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, ExchangeDeclareBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();
        VirtualHost virtualHost = session.getVirtualHost();
        final AMQChannel channel = session.getChannel(channelId);
        if (channel == null)
        {
            throw body.getChannelNotFoundException(channelId);
        }

        final AMQShortString exchangeName = body.getExchange();
        if (_logger.isDebugEnabled())
        {
            _logger.debug("Request to declare exchange of type " + body.getType() + " with name " + exchangeName);
        }

        Exchange exchange;

        if (body.getPassive())
        {
            exchange = virtualHost.getExchange(exchangeName == null ? null : exchangeName.toString());
            if(exchange == null)
            {
                throw body.getChannelException(AMQConstant.NOT_FOUND, "Unknown exchange: " + exchangeName);
            }
            else if (!(body.getType() == null || body.getType().length() ==0) && !exchange.getTypeName().equals(body.getType().asString()))
            {

                throw new AMQConnectionException(AMQConstant.NOT_ALLOWED, "Attempt to redeclare exchange: " +
                                  exchangeName + " of type " + exchange.getTypeName()
                                  + " to " + body.getType() +".",body.getClazz(), body.getMethod(),body.getMajor(),body.getMinor(),null);
            }

        }
        else
        {
            try
            {
                exchange = virtualHost.createExchange(null,
                                                      exchangeName == null ? null : exchangeName.intern().toString(),
                                                      body.getType() == null ? null : body.getType().intern().toString(),
                                                      body.getDurable(),
                                                      body.getAutoDelete(),
                        null);

            }
            catch(ReservedExchangeNameException e)
            {
                throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                          "Attempt to declare exchange: " + exchangeName +
                                          " which begins with reserved prefix.");

            }
            catch(ExchangeExistsException e)
            {
                exchange = e.getExistingExchange();
                if(!new AMQShortString(exchange.getTypeName()).equals(body.getType()))
                {
                    throw new AMQConnectionException(AMQConstant.NOT_ALLOWED, "Attempt to redeclare exchange: "
                                                                              + exchangeName + " of type "
                                                                              + exchange.getTypeName()
                                                                              + " to " + body.getType() +".",
                                                     body.getClazz(), body.getMethod(),
                                                     body.getMajor(), body.getMinor(),null);
                }
            }
            catch(AMQUnknownExchangeType e)
            {
                throw body.getConnectionException(AMQConstant.COMMAND_INVALID, "Unknown exchange: " + exchangeName,e);
            }
        }


        if(!body.getNowait())
        {
            MethodRegistry methodRegistry = session.getMethodRegistry();
            AMQMethodBody responseBody = methodRegistry.createExchangeDeclareOkBody();
            channel.sync();
            session.writeFrame(responseBody.generateFrame(channelId));
        }
    }
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    }

    public void methodReceived(AMQStateManager stateManager, QueueDeleteBody body, int channelId) throws AMQException
    {
        AMQProtocolSession protocolConnection = stateManager.getProtocolSession();
        VirtualHost virtualHost = protocolConnection.getVirtualHost();
        DurableConfigurationStore store = virtualHost.getDurableConfigurationStore();


        AMQChannel channel = protocolConnection.getChannel(channelId);

        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();
                QueueDeleteOkBody responseBody = methodRegistry.createQueueDeleteOkBody(purged);
                protocolConnection.writeFrame(responseBody.generateFrame(channelId));
            }
        }
    }
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    {
    }

    public void methodReceived(AMQStateManager stateManager, ExchangeBoundBody body, int channelId) throws AMQException
    {
        AMQProtocolSession session = stateManager.getProtocolSession();
        VirtualHost virtualHost = session.getVirtualHost();
        MethodRegistry methodRegistry = session.getMethodRegistry();

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


        AMQShortString exchangeName = body.getExchange();
        AMQShortString queueName = body.getQueue();
        AMQShortString routingKey = body.getRoutingKey();
        if (exchangeName == null)
        {
            throw new AMQException("Exchange exchange must not be null");
        }
        Exchange exchange = virtualHost.getExchange(exchangeName.toString());
        ExchangeBoundOkBody response;
        if (exchange == null)
        {


            response = methodRegistry.createExchangeBoundOkBody(EXCHANGE_NOT_FOUND,
                                                                new AMQShortString("Exchange " + exchangeName + " not found"));
        }
        else if (routingKey == null)
        {
            if (queueName == null)
            {
                if (exchange.hasBindings())
                {
                    response = methodRegistry.createExchangeBoundOkBody(OK, null);
                }
                else
                {

                    response = methodRegistry.createExchangeBoundOkBody(NO_BINDINGS,  // replyCode
                        null);  // replyText
                }
            }
            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
            }
            else
            {
                String bindingKey = body.getRoutingKey() == null ? null : body.getRoutingKey().asString();
                if (exchange.isBound(bindingKey, queue))
                {

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

                    String message = "Queue " + queueName + " not bound with routing key " +
                                        body.getRoutingKey() + " to exchange " + exchangeName;

                    if(message.length()>255)
                    {
                        message = message.substring(0,254);
                    }
                    response = methodRegistry.createExchangeBoundOkBody(SPECIFIC_QUEUE_NOT_BOUND_WITH_RK,  // replyCode
                        new AMQShortString(message));  // replyText
                }
            }
        }
        else
        {
            if (exchange.isBound(body.getRoutingKey() == null ? "" : body.getRoutingKey().asString()))
            {

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

                response = methodRegistry.createExchangeBoundOkBody(NO_QUEUE_BOUND_WITH_RK,  // replyCode
                    new AMQShortString("No queue bound with routing key " + body.getRoutingKey() +
                    " to exchange " + exchangeName));  // replyText
            }
        }
        session.writeFrame(response.generateFrame(channelId));
    }
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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)
        {
            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(false);

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

        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));
    }
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        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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Related Classes of org.apache.qpid.server.protocol.v0_8.handler.TxSelectHandler

  • org.apache.qpid.framing.abstraction.ContentChunk
  • org.apache.qpid.framing.abstraction.MessagePublishInfo
  • org.apache.qpid.framing.AMQBody
  • org.apache.qpid.framing.AMQFrame
  • org.apache.qpid.framing.AMQMethodBody
  • org.apache.qpid.framing.AMQShortString
  • org.apache.qpid.framing.BasicCancelOkBody
  • org.apache.qpid.framing.BasicContentHeaderProperties
  • org.apache.qpid.framing.BasicGetOkBody
  • org.apache.qpid.framing.BasicReturnBody
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