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Diffstat (limited to 'trunk/qpid/cpp/src/qpid/broker/TxPublish.h')
-rw-r--r-- | trunk/qpid/cpp/src/qpid/broker/TxPublish.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/trunk/qpid/cpp/src/qpid/broker/TxPublish.h b/trunk/qpid/cpp/src/qpid/broker/TxPublish.h new file mode 100644 index 0000000000..b6ab9767ab --- /dev/null +++ b/trunk/qpid/cpp/src/qpid/broker/TxPublish.h @@ -0,0 +1,92 @@ +/* + * + * 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. + * + */ +#ifndef _TxPublish_ +#define _TxPublish_ + +#include "qpid/broker/BrokerImportExport.h" +#include "qpid/broker/Queue.h" +#include "qpid/broker/Deliverable.h" +#include "qpid/broker/Message.h" +#include "qpid/broker/MessageStore.h" +#include "qpid/broker/TxOp.h" + +#include <algorithm> +#include <functional> +#include <list> + +#include <boost/intrusive_ptr.hpp> + +namespace qpid { + namespace broker { + /** + * Defines the behaviour for publish operations on a + * transactional channel. Messages are routed through + * exchanges when received but are not at that stage delivered + * to the matching queues, rather the queues are held in an + * instance of this class. On prepare() the message is marked + * enqueued to the relevant queues in the MessagesStore. On + * commit() the messages will be passed to the queue for + * dispatch or to be added to the in-memory queue. + */ + class TxPublish : public TxOp, public Deliverable{ + + class Commit{ + boost::intrusive_ptr<Message>& msg; + public: + Commit(boost::intrusive_ptr<Message>& msg); + void operator()(const boost::shared_ptr<Queue>& queue); + }; + class Rollback{ + boost::intrusive_ptr<Message>& msg; + public: + Rollback(boost::intrusive_ptr<Message>& msg); + void operator()(const boost::shared_ptr<Queue>& queue); + }; + + boost::intrusive_ptr<Message> msg; + std::list<Queue::shared_ptr> queues; + std::list<Queue::shared_ptr> prepared; + + void prepare(TransactionContext* ctxt, boost::shared_ptr<Queue>); + + public: + QPID_BROKER_EXTERN TxPublish(boost::intrusive_ptr<Message> msg); + QPID_BROKER_EXTERN virtual bool prepare(TransactionContext* ctxt) throw(); + QPID_BROKER_EXTERN virtual void commit() throw(); + QPID_BROKER_EXTERN virtual void rollback() throw(); + + virtual Message& getMessage() { return *msg; }; + + QPID_BROKER_EXTERN virtual void deliverTo(const boost::shared_ptr<Queue>& queue); + + virtual ~TxPublish(){} + virtual void accept(TxOpConstVisitor& visitor) const { visitor(*this); } + + QPID_BROKER_EXTERN uint64_t contentSize(); + + boost::intrusive_ptr<Message> getMessage() const { return msg; } + const std::list<Queue::shared_ptr> getQueues() const { return queues; } + }; + } +} + + +#endif |