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#ifndef QPID_CLIENT_SUBSCRIPTIONIMPL_H
#define QPID_CLIENT_SUBSCRIPTIONIMPL_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/client/SubscriptionSettings.h"
#include "qpid/client/SubscriptionManager.h"
#include "qpid/client/Session.h"
#include "qpid/client/MessageListener.h"
#include "qpid/client/Demux.h"
#include "qpid/framing/enum.h"
#include "qpid/framing/SequenceSet.h"
#include "qpid/sys/Mutex.h"
#include "qpid/RefCounted.h"
#include "qpid/client/ClientImportExport.h"
#include <memory>
namespace qpid {
namespace client {
class SubscriptionManager;
class SubscriptionManagerImpl;
class SubscriptionImpl : public RefCounted, public MessageListener {
public:
QPID_CLIENT_EXTERN SubscriptionImpl(SubscriptionManager, const std::string& queue,
const SubscriptionSettings&, const std::string& name, MessageListener* =0);
/** The name of the subsctription, used as the "destination" for messages from the broker.
* Usually the same as the queue name but can be set differently.
*/
QPID_CLIENT_EXTERN std::string getName() const;
/** Name of the queue this subscription subscribes to */
QPID_CLIENT_EXTERN std::string getQueue() const;
/** Get the flow control and acknowledgement settings for this subscription */
QPID_CLIENT_EXTERN const SubscriptionSettings& getSettings() const;
/** Set the flow control parameters */
QPID_CLIENT_EXTERN void setFlowControl(const FlowControl&);
/** Automatically acknowledge (acquire and accept) batches of n messages.
* You can disable auto-acknowledgement by setting n=0, and use acquire() and accept()
* to manually acquire and accept messages.
*/
QPID_CLIENT_EXTERN void setAutoAck(size_t n);
/** Get the set of ID's for messages received by this subscription but not yet acquired.
* This will always be empty if acquireMode=ACQUIRE_MODE_PRE_ACQUIRED
*/
QPID_CLIENT_EXTERN SequenceSet getUnacquired() const;
/** Get the set of ID's for messages acquired by this subscription but not yet accepted. */
QPID_CLIENT_EXTERN SequenceSet getUnaccepted() const;
/** Acquire messageIds and remove them from the un-acquired set for the session. */
QPID_CLIENT_EXTERN void acquire(const SequenceSet& messageIds);
/** Accept messageIds and remove them from the un-accepted set for the session. */
QPID_CLIENT_EXTERN void accept(const SequenceSet& messageIds);
/** Release messageIds and remove them from the un-accepted set for the session. */
QPID_CLIENT_EXTERN void release(const SequenceSet& messageIds);
/** Get the session associated with this subscription */
QPID_CLIENT_EXTERN Session getSession() const;
/** Get the subscription manager associated with this subscription */
QPID_CLIENT_EXTERN SubscriptionManager getSubscriptionManager();
/** Send subscription request and issue appropriate flow control commands. */
QPID_CLIENT_EXTERN void subscribe();
/** Cancel the subscription. */
QPID_CLIENT_EXTERN void cancel();
/** Grant specified credit for this subscription **/
QPID_CLIENT_EXTERN void grantCredit(framing::message::CreditUnit unit, uint32_t value);
QPID_CLIENT_EXTERN void received(Message&);
/**
* Set up demux diversion for messages sent to this subscription
*/
Demux::QueuePtr divert();
/**
* Cancel any demux diversion that may have been setup for this
* subscription
*/
QPID_CLIENT_EXTERN void cancelDiversion();
private:
mutable sys::Mutex lock;
SubscriptionManagerImpl& manager;
std::string name, queue;
SubscriptionSettings settings;
framing::SequenceSet unacquired, unaccepted;
MessageListener* listener;
std::auto_ptr<ScopedDivert> demuxRule;
};
}} // namespace qpid::client
#endif /*!QPID_CLIENT_SUBSCRIPTIONIMPL_H*/
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