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#ifndef QPID_BROKER_CONSUMERFACTORY_H
#define QPID_BROKER_CONSUMERFACTORY_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.
*
*/
// TODO aconway 2011-11-25: it's ugly exposing SemanticState::ConsumerImpl in public.
// Refactor to use a more abstract interface.
#include <boost/shared_ptr.hpp>
namespace qpid {
namespace broker {
class SemanticState;
class SemanticStateConsumerImpl;
/**
* Base class for consumer factoires. Plugins can register a
* ConsumerFactory via Broker:: getConsumerFactories() Each time a
* conumer is created, each factory is tried in turn till one returns
* non-0.
*/
class ConsumerFactory
{
public:
virtual ~ConsumerFactory() {}
virtual boost::shared_ptr<SemanticStateConsumerImpl> create(
SemanticState* parent,
const std::string& name, boost::shared_ptr<Queue> queue,
bool ack, bool acquire, bool exclusive, const std::string& tag,
const std::string& resumeId, uint64_t resumeTtl, const framing::FieldTable& arguments) = 0;
};
/** A set of factories held by the broker
* THREAD UNSAFE: see notes on member functions.
*/
class ConsumerFactories {
public:
typedef std::vector<boost::shared_ptr<ConsumerFactory> > Factories;
/** Thread safety: May only be called during plug-in initialization. */
void add(const boost::shared_ptr<ConsumerFactory>& cf) { factories.push_back(cf); }
/** Thread safety: May only be called after plug-in initialization. */
const Factories& get() const { return factories; }
private:
Factories factories;
};
}} // namespace qpid::broker
#endif /*!QPID_BROKER_CONSUMERFACTORY_H*/
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