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#ifndef QPID_BROKER_PREVIEWSESSIONMANAGER_H
#define QPID_BROKER_PREVIEWSESSIONMANAGER_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/Uuid.h>
#include <qpid/sys/Time.h>
#include <qpid/sys/Mutex.h>
#include <qpid/RefCounted.h>
#include <boost/noncopyable.hpp>
#include <boost/ptr_container/ptr_vector.hpp>
#include <set>
#include <vector>
#include <memory>
namespace qpid {
namespace broker {
class PreviewSessionState;
class PreviewSessionHandler;
/**
* Create and manage PreviewSessionState objects.
*/
class PreviewSessionManager : private boost::noncopyable {
public:
/**
* Observer notified of PreviewSessionManager events.
*/
struct Observer : public RefCounted {
virtual void opened(PreviewSessionState&) {}
};
PreviewSessionManager(uint32_t ack);
~PreviewSessionManager();
/** Open a new active session, caller takes ownership */
std::auto_ptr<PreviewSessionState> open(PreviewSessionHandler& c, uint32_t timeout_);
/** Suspend a session, start it's timeout counter.
* The factory takes ownership.
*/
void suspend(std::auto_ptr<PreviewSessionState> session);
/** Resume a suspended session.
*@throw Exception if timed out or non-existant.
*/
std::auto_ptr<PreviewSessionState> resume(const framing::Uuid&);
/** Add an Observer. */
void add(const intrusive_ptr<Observer>&);
private:
typedef boost::ptr_vector<PreviewSessionState> Suspended;
typedef std::set<framing::Uuid> Active;
typedef std::vector<intrusive_ptr<Observer> > Observers;
void erase(const framing::Uuid&);
void eraseExpired();
sys::Mutex lock;
Suspended suspended;
Active active;
uint32_t ack;
Observers observers;
friend class PreviewSessionState; // removes deleted sessions from active set.
};
}} // namespace qpid::broker
#endif /*!QPID_BROKER_PREVIEWSESSIONMANAGER_H*/
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