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#ifndef QPID_CLIENT_AMQP0_10_SESSIONIMPL_H
#define QPID_CLIENT_AMQP0_10_SESSIONIMPL_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/messaging/SessionImpl.h"
#include "qpid/messaging/Duration.h"
#include "qpid/messaging/exceptions.h"
#include "qpid/client/Session.h"
#include "qpid/client/SubscriptionManager.h"
#include "qpid/client/amqp0_10/AddressResolution.h"
#include "qpid/client/amqp0_10/IncomingMessages.h"
#include "qpid/sys/Mutex.h"
#include "qpid/framing/reply_exceptions.h"
#include <boost/intrusive_ptr.hpp>
namespace qpid {
namespace messaging {
class Address;
class Connection;
class Message;
class Receiver;
class Sender;
class Session;
}
namespace client {
namespace amqp0_10 {
class ConnectionImpl;
class ReceiverImpl;
class SenderImpl;
/**
* Implementation of the protocol independent Session interface using
* AMQP 0-10.
*/
class SessionImpl : public qpid::messaging::SessionImpl
{
public:
SessionImpl(ConnectionImpl&, bool transactional);
void commit();
void rollback();
void acknowledge(bool sync);
void reject(qpid::messaging::Message&);
void release(qpid::messaging::Message&);
void acknowledge(qpid::messaging::Message& msg);
void close();
void sync(bool block);
qpid::messaging::Sender createSender(const qpid::messaging::Address& address);
qpid::messaging::Receiver createReceiver(const qpid::messaging::Address& address);
qpid::messaging::Sender getSender(const std::string& name) const;
qpid::messaging::Receiver getReceiver(const std::string& name) const;
bool nextReceiver(qpid::messaging::Receiver& receiver, qpid::messaging::Duration timeout);
qpid::messaging::Receiver nextReceiver(qpid::messaging::Duration timeout);
qpid::messaging::Connection getConnection() const;
void checkError();
bool hasError();
bool get(ReceiverImpl& receiver, qpid::messaging::Message& message, qpid::messaging::Duration timeout);
void releasePending(const std::string& destination);
void receiverCancelled(const std::string& name);
void senderCancelled(const std::string& name);
uint32_t getReceivable();
uint32_t getReceivable(const std::string& destination);
uint32_t getUnsettledAcks();
uint32_t getUnsettledAcks(const std::string& destination);
void setSession(qpid::client::Session);
template <class T> bool execute(T& f)
{
try {
f();
return true;
} catch (const qpid::TransportFailure&) {
reconnect();
return false;
} catch (const qpid::framing::ResourceLimitExceededException& e) {
if (backoff()) return false;
else throw qpid::messaging::TargetCapacityExceeded(e.what());
} catch (const qpid::framing::UnauthorizedAccessException& e) {
throw qpid::messaging::UnauthorizedAccess(e.what());
} catch (const qpid::SessionException& e) {
throw qpid::messaging::SessionError(e.what());
} catch (const qpid::ConnectionException& e) {
throw qpid::messaging::ConnectionError(e.what());
} catch (const qpid::ChannelException& e) {
throw qpid::messaging::MessagingException(e.what());
}
}
static SessionImpl& convert(qpid::messaging::Session&);
private:
typedef std::map<std::string, qpid::messaging::Receiver> Receivers;
typedef std::map<std::string, qpid::messaging::Sender> Senders;
mutable qpid::sys::Mutex lock;
boost::intrusive_ptr<ConnectionImpl> connection;
qpid::client::Session session;
AddressResolution resolver;
IncomingMessages incoming;
Receivers receivers;
Senders senders;
const bool transactional;
bool accept(ReceiverImpl*, qpid::messaging::Message*, IncomingMessages::MessageTransfer&);
bool getIncoming(IncomingMessages::Handler& handler, qpid::messaging::Duration timeout);
bool getNextReceiver(qpid::messaging::Receiver* receiver, IncomingMessages::MessageTransfer& transfer);
void reconnect();
bool backoff();
void commitImpl();
void rollbackImpl();
void acknowledgeImpl();
void acknowledgeImpl(qpid::messaging::Message&);
void rejectImpl(qpid::messaging::Message&);
void releaseImpl(qpid::messaging::Message&);
void closeImpl();
void syncImpl(bool block);
qpid::messaging::Sender createSenderImpl(const qpid::messaging::Address& address);
qpid::messaging::Receiver createReceiverImpl(const qpid::messaging::Address& address);
uint32_t getReceivableImpl(const std::string* destination);
uint32_t getUnsettledAcksImpl(const std::string* destination);
//functors for public facing methods (allows locking and retry
//logic to be centralised)
struct Command
{
SessionImpl& impl;
Command(SessionImpl& i) : impl(i) {}
};
struct Commit : Command
{
Commit(SessionImpl& i) : Command(i) {}
void operator()() { impl.commitImpl(); }
};
struct Rollback : Command
{
Rollback(SessionImpl& i) : Command(i) {}
void operator()() { impl.rollbackImpl(); }
};
struct Acknowledge : Command
{
Acknowledge(SessionImpl& i) : Command(i) {}
void operator()() { impl.acknowledgeImpl(); }
};
struct Sync : Command
{
Sync(SessionImpl& i) : Command(i) {}
void operator()() { impl.syncImpl(true); }
};
struct NonBlockingSync : Command
{
NonBlockingSync(SessionImpl& i) : Command(i) {}
void operator()() { impl.syncImpl(false); }
};
struct Reject : Command
{
qpid::messaging::Message& message;
Reject(SessionImpl& i, qpid::messaging::Message& m) : Command(i), message(m) {}
void operator()() { impl.rejectImpl(message); }
};
struct Release : Command
{
qpid::messaging::Message& message;
Release(SessionImpl& i, qpid::messaging::Message& m) : Command(i), message(m) {}
void operator()() { impl.releaseImpl(message); }
};
struct Acknowledge1 : Command
{
qpid::messaging::Message& message;
Acknowledge1(SessionImpl& i, qpid::messaging::Message& m) : Command(i), message(m) {}
void operator()() { impl.acknowledgeImpl(message); }
};
struct CreateSender;
struct CreateReceiver;
struct UnsettledAcks;
struct Receivable;
//helper templates for some common patterns
template <class F> bool execute()
{
F f(*this);
return execute(f);
}
template <class F> void retry()
{
while (!execute<F>()) {}
}
template <class F, class P> bool execute1(P p)
{
F f(*this, p);
return execute(f);
}
template <class F, class R, class P> R get1(P p)
{
F f(*this, p);
while (!execute(f)) {}
return f.result;
}
};
}}} // namespace qpid::client::amqp0_10
#endif /*!QPID_CLIENT_AMQP0_10_SESSIONIMPL_H*/
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