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Diffstat (limited to 'qpid/cpp/src/qpid/broker/SessionHandler.h')
-rw-r--r-- | qpid/cpp/src/qpid/broker/SessionHandler.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/broker/SessionHandler.h b/qpid/cpp/src/qpid/broker/SessionHandler.h new file mode 100644 index 0000000000..ca6d6bb193 --- /dev/null +++ b/qpid/cpp/src/qpid/broker/SessionHandler.h @@ -0,0 +1,99 @@ +#ifndef QPID_BROKER_SESSIONHANDLER_H +#define QPID_BROKER_SESSIONHANDLER_H + +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +#include "qpid/amqp_0_10/SessionHandler.h" +#include "qpid/framing/AMQP_ClientProxy.h" + +namespace qpid { +class SessionState; + +namespace broker { + +class Connection; +class ConnectionState; +class SessionState; + +/** + * A SessionHandler is associated with each active channel. It + * receives incoming frames, handles session controls and manages the + * association between the channel and a session. + */ +class SessionHandler : public amqp_0_10::SessionHandler { + public: + SessionHandler(Connection&, framing::ChannelId); + ~SessionHandler(); + + /** Get broker::SessionState */ + SessionState* getSession() { return session.get(); } + const SessionState* getSession() const { return session.get(); } + + ConnectionState& getConnection(); + const ConnectionState& getConnection() const; + + framing::AMQP_ClientProxy& getProxy() { return proxy; } + const framing::AMQP_ClientProxy& getProxy() const { return proxy; } + + /** + * If commands are sent based on the local time (e.g. in timers), they don't have + * a well-defined ordering across cluster nodes. + * This proxy is for sending such commands. In a clustered broker it will take steps + * to synchronize command order across the cluster. In a stand-alone broker + * it is just a synonym for getProxy() + */ + framing::AMQP_ClientProxy& getClusterOrderProxy() { + return clusterOrderProxy.get() ? *clusterOrderProxy : proxy; + } + + virtual void handleDetach(); + void attached(const std::string& name);//used by 'pushing' inter-broker bridges + void attachAs(const std::string& name);//used by 'pulling' inter-broker bridges + + protected: + virtual void setState(const std::string& sessionName, bool force); + virtual qpid::SessionState* getState(); + virtual framing::FrameHandler* getInHandler(); + virtual void connectionException(framing::connection::CloseCode code, const std::string& msg); + virtual void channelException(framing::session::DetachCode, const std::string& msg); + virtual void executionException(framing::execution::ErrorCode, const std::string& msg); + virtual void detaching(); + virtual void readyToSend(); + + private: + struct SetChannelProxy : public framing::AMQP_ClientProxy { // Proxy that sets the channel. + framing::ChannelHandler setChannel; + SetChannelProxy(uint16_t ch, framing::FrameHandler* out) + : framing::AMQP_ClientProxy(setChannel), setChannel(ch, out) {} + }; + + Connection& connection; + framing::AMQP_ClientProxy proxy; + std::auto_ptr<SessionState> session; + std::auto_ptr<SetChannelProxy> clusterOrderProxy; +}; + +}} // namespace qpid::broker + + + +#endif /*!QPID_BROKER_SESSIONHANDLER_H*/ |