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

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

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        return new AMQShortString(Long.toString(System.currentTimeMillis()));
    }

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

        //ignore leading '/'
        String virtualHostName;
        if ((body.getVirtualHost() != null) && body.getVirtualHost().charAt(0) == '/')
        {
            virtualHostName = new StringBuilder(body.getVirtualHost().subSequence(1, body.getVirtualHost().length())).toString();
        }
        else
        {
            virtualHostName = body.getVirtualHost() == null ? null : String.valueOf(body.getVirtualHost());
        }

        VirtualHost virtualHost = stateManager.getVirtualHostRegistry().getVirtualHost(virtualHostName);

        if (virtualHost == null)
        {
            throw body.getConnectionException(AMQConstant.NOT_FOUND, "Unknown virtual host: '" + virtualHostName + "'");
        }
        else
        {
            // Check virtualhost access
            try
            {
                virtualHost.getSecurityManager().authoriseCreateConnection(session);
            }
            catch (AccessControlException e)
            {
                throw body.getConnectionException(AMQConstant.ACCESS_REFUSED, e.getMessage());
            }

             if (virtualHost.getState() != State.ACTIVE)
            {
                throw body.getConnectionException(AMQConstant.CONNECTION_FORCED, "Virtual host '" + virtualHost.getName() + "' is not active");
            }

            session.setVirtualHost(virtualHost);

            // See Spec (0.8.2). Section  3.1.2 Virtual Hosts
            if (session.getContextKey() == null)
            {
                session.setContextKey(generateClientID());
            }

            MethodRegistry methodRegistry = session.getMethodRegistry();
            AMQMethodBody responseBody =  methodRegistry.createConnectionOpenOkBody(body.getVirtualHost());

            stateManager.changeState(AMQState.CONNECTION_OPEN);

            session.writeFrame(responseBody.generateFrame(channelId));
        }
    }
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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.getQueue(body.getQueue().toString());
            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
            {

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


                        protocolConnection.writeFrame(responseBody.generateFrame(channelId));
                    }
                }
                catch (AccessControlException e)
                {
                    throw body.getConnectionException(AMQConstant.ACCESS_REFUSED,
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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());

        long brokerFrameMax = stateManager.getBroker().getContextValue(Long.class,Broker.BROKER_FRAME_SIZE);
        if(brokerFrameMax != 0 && body.getFrameMax() > brokerFrameMax)
        {
            throw new AMQConnectionException(AMQConstant.SYNTAX_ERROR,
                                             "Attempt to set max frame size to " + body.getFrameMax()
                                             + "greater than the broker will allow: "
                                             + brokerFrameMax,
                                             body.getClazz(), body.getMethod(),
                                             body.getMajor(), body.getMinor(),null);
        }
        else if(body.getFrameMax() > 0 && body.getFrameMax() < AMQConstant.FRAME_MIN_SIZE.getCode())
        {
            throw new AMQConnectionException(AMQConstant.SYNTAX_ERROR,
                                             "Attempt to set max frame size to " + body.getFrameMax()
                                             + "which is smaller than the specification definined minimum: "
                                             + AMQConstant.FRAME_MIN_SIZE.getCode(),
                                             body.getClazz(), body.getMethod(),
                                             body.getMajor(), body.getMinor(),null);
        }
        session.setMaxFrameSize(body.getFrameMax()== 0l ? (brokerFrameMax == 0l ? 0xFFFFFFFFl : brokerFrameMax) : 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, ConnectionStartOkBody body, int channelId) throws AMQException
    {
        Broker<?> broker = stateManager.getBroker();
        AMQProtocolSession session = stateManager.getProtocolSession();

        _logger.info("SASL Mechanism selected: " + body.getMechanism());
        _logger.info("Locale selected: " + body.getLocale());

        SubjectCreator subjectCreator = stateManager.getSubjectCreator();
        SaslServer ss = null;
        try
        {
            ss = subjectCreator.createSaslServer(String.valueOf(body.getMechanism()), session.getLocalFQDN(), session.getPeerPrincipal());

            if (ss == null)
            {
                throw body.getConnectionException(AMQConstant.RESOURCE_ERROR, "Unable to create SASL Server:" + body.getMechanism());
            }

            session.setSaslServer(ss);

            final SubjectAuthenticationResult authResult = subjectCreator.authenticate(ss, body.getResponse());
            //save clientProperties
            session.setClientProperties(body.getClientProperties());

            MethodRegistry methodRegistry = session.getMethodRegistry();

            switch (authResult.getStatus())
            {
                case ERROR:
                    Exception cause = authResult.getCause();

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

                    stateManager.changeState(AMQState.CONNECTION_CLOSING);

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

                    session.writeFrame(closeBody.generateFrame(0));
                    disposeSaslServer(session);
                    break;

                case SUCCESS:
                    if (_logger.isInfoEnabled())
                    {
                        _logger.info("Connected as: " + authResult.getSubject());
                    }
                    session.setAuthorizedSubject(authResult.getSubject());

                    stateManager.changeState(AMQState.CONNECTION_NOT_TUNED);

                    ConnectionTuneBody tuneBody = methodRegistry.createConnectionTuneBody(broker.getConnection_sessionCountLimit(),
                                                                                          broker.getContextValue(Long.class,Broker.BROKER_FRAME_SIZE),
                                                                                          broker.getConnection_heartBeatDelay());
                    session.writeFrame(tuneBody.generateFrame(0));
                    break;
                case CONTINUE:
                    stateManager.changeState(AMQState.CONNECTION_NOT_AUTH);

                    ConnectionSecureBody secureBody = methodRegistry.createConnectionSecureBody(authResult.getChallenge());
                    session.writeFrame(secureBody.generateFrame(0));
            }
        }
        catch (SaslException e)
        {
            disposeSaslServer(session);
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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);
        VirtualHostImpl 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
            {
                if (!queue.verifySessionAccess(channel))
                {
                    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(channel, queueName, body, virtualHost, protocolConnection);

            }
            catch(QueueExistsException qe)
            {

                queue = qe.getExistingQueue();

                if (!queue.verifySessionAccess(channel))
                {
                    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.getAutoDelete() && queue.getLifetimePolicy() != LifetimePolicy.DELETE_ON_NO_OUTBOUND_LINKS)
                    || (!body.getAutoDelete() && queue.getLifetimePolicy() != ((body.getExclusive() && !body.getDurable()) ? LifetimePolicy.DELETE_ON_CONNECTION_CLOSE : LifetimePolicy.PERMANENT)))
                {
                    throw body.getChannelException(AMQConstant.ALREADY_EXISTS,
                                                      "Cannot re-declare queue '" + queue.getName() + "' with different lifetime policy (was: "
                                                        + queue.getLifetimePolicy() + " requested autodelete: " + 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() + ")");
                }

            }
            catch (AccessControlException e)
            {
                throw body.getConnectionException(AMQConstant.ACCESS_REFUSED, e.getMessage());
            }

            //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.getQueueDepthMessages(),
                                                            queue.getConsumerCount());
            protocolConnection.writeFrame(responseBody.generateFrame(channelId));

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

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

        // Protect the broker against out of order frame request.
        if (virtualHost == null)
        {
            throw new AMQException(AMQConstant.COMMAND_INVALID, "Virtualhost has not yet been set. ConnectionOpen has not been called.", null);
        }
        _logger.info("Connecting to: " + virtualHost.getName());

        final AMQChannel channel = new AMQChannel(session,channelId, virtualHost.getMessageStore());

        session.addChannel(channel);

        ChannelOpenOkBody response;

        ProtocolVersion pv = session.getProtocolVersion();

        if(pv.equals(ProtocolVersion.v8_0))
        {
            MethodRegistry_8_0 methodRegistry = (MethodRegistry_8_0) MethodRegistry.getMethodRegistry(ProtocolVersion.v8_0);
            response = methodRegistry.createChannelOpenOkBody();

        }
        else if(pv.equals(ProtocolVersion.v0_9))
        {
            MethodRegistry_0_9 methodRegistry = (MethodRegistry_0_9) MethodRegistry.getMethodRegistry(ProtocolVersion.v0_9);
            UUID uuid = UUID.randomUUID();
            ByteArrayOutputStream output = new ByteArrayOutputStream();
            DataOutputStream dataOut = new DataOutputStream(output);
            try
            {
                dataOut.writeLong(uuid.getMostSignificantBits());
                dataOut.writeLong(uuid.getLeastSignificantBits());
                dataOut.flush();
                dataOut.close();
            }
            catch (IOException e)
            {
                // This *really* shouldn't happen as we're not doing any I/O
                throw new ConnectionScopedRuntimeException("I/O exception when writing to byte array", e);
            }

            // should really associate this channelId to the session
            byte[] channelName = output.toByteArray();

            response = methodRegistry.createChannelOpenOkBody(channelName);
        }
        else if(pv.equals(ProtocolVersion.v0_91))
        {
            MethodRegistry_0_91 methodRegistry = (MethodRegistry_0_91) MethodRegistry.getMethodRegistry(ProtocolVersion.v0_91);
            UUID uuid = UUID.randomUUID();
            ByteArrayOutputStream output = new ByteArrayOutputStream();
            DataOutputStream dataOut = new DataOutputStream(output);
            try
            {
                dataOut.writeLong(uuid.getMostSignificantBits());
                dataOut.writeLong(uuid.getLeastSignificantBits());
                dataOut.flush();
                dataOut.close();
            }
            catch (IOException e)
            {
                // This *really* shouldn't happen as we're not doing any I/O
                throw new ConnectionScopedRuntimeException("I/O exception when writing to byte array", e);
            }

            // should really associate this channelId to the session
            byte[] channelName = output.toByteArray();

            response = methodRegistry.createChannelOpenOkBody(channelName);
        }
        else
        {
            throw new AMQException(AMQConstant.INTERNAL_ERROR, "Got channel open for protocol version not catered for: " + pv, null);
        }


        session.writeFrame(response.generateFrame(channelId));
    }
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        return new AMQShortString(Long.toString(System.currentTimeMillis()));
    }

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

        //ignore leading '/'
        String virtualHostName;
        if ((body.getVirtualHost() != null) && body.getVirtualHost().charAt(0) == '/')
        {
            virtualHostName = new StringBuilder(body.getVirtualHost().subSequence(1, body.getVirtualHost().length())).toString();
        }
        else
        {
            virtualHostName = body.getVirtualHost() == null ? null : String.valueOf(body.getVirtualHost());
        }

        VirtualHostImpl virtualHost = ((AmqpPort)stateManager.getProtocolSession().getPort()).getVirtualHost(virtualHostName);

        if (virtualHost == null)
        {
            throw body.getConnectionException(AMQConstant.NOT_FOUND, "Unknown virtual host: '" + virtualHostName + "'");
        }
        else
        {
            // Check virtualhost access
            if (virtualHost.getState() != State.ACTIVE)
            {
                throw body.getConnectionException(AMQConstant.CONNECTION_FORCED, "Virtual host '" + virtualHost.getName() + "' is not active");
            }

            session.setVirtualHost(virtualHost);
            try
            {
                virtualHost.getSecurityManager().authoriseCreateConnection(session);
            }
            catch (AccessControlException e)
            {
                throw body.getConnectionException(AMQConstant.ACCESS_REFUSED, e.getMessage());
            }

            // See Spec (0.8.2). Section  3.1.2 Virtual Hosts
            if (session.getContextKey() == null)
            {
                session.setContextKey(generateClientID());
            }

            MethodRegistry methodRegistry = session.getMethodRegistry();
            AMQMethodBody responseBody =  methodRegistry.createConnectionOpenOkBody(body.getVirtualHost());

            stateManager.changeState(AMQState.CONNECTION_OPEN);

            session.writeFrame(responseBody.generateFrame(channelId));
        }
    }
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    {
    }

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


        VirtualHostImpl 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.getQueue(body.getQueue().toString());
            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
            {

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


                        protocolConnection.writeFrame(responseBody.generateFrame(channelId));
                    }
                }
                catch (AccessControlException e)
                {
                    throw body.getConnectionException(AMQConstant.ACCESS_REFUSED,
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    {
    }

    public void methodReceived(AMQStateManager stateManager, QueueBindBody body, int channelId) throws AMQException
    {
        AMQProtocolSession protocolConnection = stateManager.getProtocolSession();
        VirtualHostImpl virtualHost = protocolConnection.getVirtualHost();
        AMQChannel channel = protocolConnection.getChannel(channelId);

        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.");
        }

        if(isDefaultExchange(body.getExchange()))
        {
            throw body.getConnectionException(AMQConstant.NOT_ALLOWED, "Cannot bind the queue " + queueName + " to the default exchange");
        }

        final String exchangeName = body.getExchange().toString();

        final ExchangeImpl exch = virtualHost.getExchange(exchangeName);
        if (exch == null)
        {
            throw body.getChannelException(AMQConstant.NOT_FOUND, "Exchange " + exchangeName + " does not exist.");
        }


        try
        {

            Map<String,Object> arguments = FieldTable.convertToMap(body.getArguments());
            String bindingKey = String.valueOf(routingKey);

            if (!exch.isBound(bindingKey, arguments, queue))
            {

                if(!exch.addBinding(bindingKey, queue, arguments) && ExchangeDefaults.TOPIC_EXCHANGE_CLASS.equals(exch.getType()))
                {
                    exch.replaceBinding(bindingKey, queue, arguments);
                }
            }
        }
        catch (AccessControlException e)
        {
            throw body.getConnectionException(AMQConstant.ACCESS_REFUSED, e.getMessage());
        }

        if (_log.isInfoEnabled())
        {
            _log.info("Binding queue " + queue + " to exchange " + exch + " with routing key " + routingKey);
        }
        if (!body.getNowait())
        {
            channel.sync();
            MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
            AMQMethodBody responseBody = methodRegistry.createQueueBindOkBody();
            protocolConnection.writeFrame(responseBody.generateFrame(channelId));

        }
    }
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        _failIfNotFound = failIfNotFound;
    }

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

        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
        {
                if (!queue.verifySessionAccess(channel))
                {
                    throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
                                                      "Queue is exclusive, but not created on this Connection.");
                }

            long purged = 0;
            try
            {
                purged = queue.clearQueue();
            }
            catch (AccessControlException e)
            {
                throw body.getConnectionException(AMQConstant.ACCESS_REFUSED, e.getMessage());
            }


            if(!body.getNowait())
                {
                    channel.sync();
                    MethodRegistry methodRegistry = protocolConnection.getMethodRegistry();
                    AMQMethodBody responseBody = methodRegistry.createQueuePurgeOkBody(purged);
                    protocolConnection.writeFrame(responseBody.generateFrame(channelId));

                }
        }
    }
View Full Code Here
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