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Diffstat (limited to 'qpid/cpp/src/qpid/client/amqp0_10/SessionImpl.h')
| -rw-r--r-- | qpid/cpp/src/qpid/client/amqp0_10/SessionImpl.h | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/client/amqp0_10/SessionImpl.h b/qpid/cpp/src/qpid/client/amqp0_10/SessionImpl.h new file mode 100644 index 0000000000..2bb72aa877 --- /dev/null +++ b/qpid/cpp/src/qpid/client/amqp0_10/SessionImpl.h @@ -0,0 +1,259 @@ +#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 "qpid/sys/ExceptionHolder.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, bool cumulative); + 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 isTransactional() const; + + 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 { + txError.raise(); + 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::framing::NotFoundException& e) { + throw qpid::messaging::NotFound(e.what()); + } catch (const qpid::framing::ResourceDeletedException& e) { + throw qpid::messaging::NotFound(e.what()); + } catch (const qpid::SessionException& e) { + rethrow(e); + return false; // Keep the compiler happy + } 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&); + static void rethrow(const qpid::SessionException&); + + 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 committing; + sys::ExceptionHolder txError; + + 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&, bool cumulative); + 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 Acknowledge2 : Command + { + qpid::messaging::Message& message; + bool cumulative; + + Acknowledge2(SessionImpl& i, qpid::messaging::Message& m, bool c) : Command(i), message(m), cumulative(c) {} + void operator()() { impl.acknowledgeImpl(message, cumulative); } + }; + + 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*/ |