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#ifndef QPID_AMQP_0_10_SESSIONHANDLER_H
#define QPID_AMQP_0_10_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/framing/ChannelHandler.h"
#include "qpid/framing/AMQP_AllProxy.h"
#include "qpid/framing/AMQP_AllOperations.h"
#include "qpid/SessionState.h"
#include "qpid/CommonImportExport.h"
namespace qpid {
namespace amqp_0_10 {
/**
* Base SessionHandler with logic common to both client and broker.
*
* A SessionHandler is associated with a channel and can be attached
* to a session state.
*/
class SessionHandler : public framing::AMQP_AllOperations::SessionHandler,
public framing::FrameHandler::InOutHandler
{
public:
QPID_COMMON_EXTERN SessionHandler(framing::FrameHandler* out=0, uint16_t channel=0);
QPID_COMMON_EXTERN ~SessionHandler();
void setChannel(uint16_t ch) { channel = ch; }
uint16_t getChannel() const { return channel.get(); }
void setOutHandler(framing::FrameHandler& h) { channel.next = &h; }
virtual SessionState* getState() = 0;
virtual framing::FrameHandler* getInHandler() = 0;
// Non-protocol methods, called locally to initiate some action.
QPID_COMMON_EXTERN void sendDetach();
QPID_COMMON_EXTERN void sendCompletion();
QPID_COMMON_EXTERN void sendAttach(bool force);
QPID_COMMON_EXTERN void sendTimeout(uint32_t t);
QPID_COMMON_EXTERN void sendFlush();
QPID_COMMON_EXTERN void markReadyToSend();//TODO: only needed for inter-broker bridge; cleanup
/** True if the handler is ready to send and receive */
bool ready() const;
// Protocol methods
QPID_COMMON_EXTERN void attach(const std::string& name, bool force);
QPID_COMMON_EXTERN void attached(const std::string& name);
QPID_COMMON_EXTERN void detach(const std::string& name);
QPID_COMMON_EXTERN void detached(const std::string& name, uint8_t code);
QPID_COMMON_EXTERN void requestTimeout(uint32_t t);
QPID_COMMON_EXTERN void timeout(uint32_t t);
QPID_COMMON_EXTERN void commandPoint(const framing::SequenceNumber& id, uint64_t offset);
QPID_COMMON_EXTERN void expected(const framing::SequenceSet& commands, const framing::Array& fragments);
QPID_COMMON_EXTERN void confirmed(const framing::SequenceSet& commands,const framing::Array& fragments);
QPID_COMMON_EXTERN void completed(const framing::SequenceSet& commands, bool timelyReply);
QPID_COMMON_EXTERN void knownCompleted(const framing::SequenceSet& commands);
QPID_COMMON_EXTERN void flush(bool expected, bool confirmed, bool completed);
QPID_COMMON_EXTERN void gap(const framing::SequenceSet& commands);
protected:
QPID_COMMON_EXTERN virtual void invoke(const framing::AMQMethodBody& m);
virtual void setState(const std::string& sessionName, bool force) = 0;
virtual void connectionException(framing::connection::CloseCode code, const std::string& msg) = 0;
virtual void channelException(framing::session::DetachCode, const std::string& msg) = 0;
virtual void executionException(framing::execution::ErrorCode, const std::string& msg) = 0;
virtual void detaching() = 0;
// Notification of events
virtual void readyToSend() {}
virtual void readyToReceive() {}
QPID_COMMON_EXTERN virtual void handleDetach();
QPID_COMMON_EXTERN virtual void handleIn(framing::AMQFrame&);
QPID_COMMON_EXTERN virtual void handleOut(framing::AMQFrame&);
framing::ChannelHandler channel;
framing::AMQP_AllProxy::Session peer;
bool ignoring;
bool sendReady, receiveReady;
std::string name;
private:
void sendCommandPoint(const SessionPoint&);
};
}} // namespace qpid::amqp_0_10
#endif /*!QPID_AMQP_0_10_SESSIONHANDLER_H*/
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