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#ifndef QPID_BROKER_PROTOCOL_H
#define QPID_BROKER_PROTOCOL_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 <map>
#include <string>
#include <set>
#include <boost/shared_ptr.hpp>
#include <boost/intrusive_ptr.hpp>
#include "qpid/sys/ConnectionCodec.h"
#include "qpid/broker/BrokerImportExport.h"
namespace qpid {
namespace sys {
class OutputControl;
struct SecuritySettings;
}
namespace framing {
class Buffer;
class ProtocolVersion;
}
namespace broker {
class Broker;
class Message;
class RecoverableMessage;
namespace amqp_0_10 {
class MessageTransfer;
}
/**
* A simple abstraction allowing pluggable protocol(s)
* (versions). AMQP 0-10 is considered the default. Alternatives must
* provide a ConnectionCodec for encoding/decoding the protocol in
* full, a means of translating the native message format of that
* protocol into AMQP 0-10 and a means of recovering durable messages
* from disk.
*/
class Protocol
{
public:
virtual ~Protocol() {}
virtual qpid::sys::ConnectionCodec* create(const qpid::framing::ProtocolVersion&, qpid::sys::OutputControl&, const std::string&, const qpid::sys::SecuritySettings&) = 0;
virtual boost::intrusive_ptr<const qpid::broker::amqp_0_10::MessageTransfer> translate(const Message&) = 0;
virtual boost::shared_ptr<RecoverableMessage> recover(qpid::framing::Buffer&) = 0;
virtual qpid::framing::ProtocolVersion supportedVersion() const = 0;
private:
};
class ProtocolRegistry : public Protocol, public qpid::sys::ConnectionCodec::Factory
{
public:
QPID_BROKER_EXTERN qpid::sys::ConnectionCodec* create(const qpid::framing::ProtocolVersion&, qpid::sys::OutputControl&, const std::string&, const qpid::sys::SecuritySettings&);
QPID_BROKER_EXTERN qpid::sys::ConnectionCodec* create(qpid::sys::OutputControl&, const std::string&, const qpid::sys::SecuritySettings&);
QPID_BROKER_EXTERN qpid::framing::ProtocolVersion supportedVersion() const;
QPID_BROKER_EXTERN boost::intrusive_ptr<const qpid::broker::amqp_0_10::MessageTransfer> translate(const Message&);
QPID_BROKER_EXTERN boost::shared_ptr<RecoverableMessage> recover(qpid::framing::Buffer&);
QPID_BROKER_EXTERN Message decode(qpid::framing::Buffer&);
QPID_BROKER_EXTERN ProtocolRegistry(const std::set<std::string>& enabled, Broker* b);
QPID_BROKER_EXTERN ~ProtocolRegistry();
QPID_BROKER_EXTERN void add(const std::string&, Protocol*);
private:
//name may be useful for descriptive purposes or even for some
//limited manipulation of ordering
typedef std::map<std::string, Protocol*> Protocols;
Protocols protocols;
const std::set<std::string> enabled;
Broker* broker;
qpid::sys::ConnectionCodec* create_0_10(qpid::sys::OutputControl&, const std::string&, const qpid::sys::SecuritySettings&, bool);
bool isEnabled(const std::string&) const;
};
}} // namespace qpid::broker
#endif /*!QPID_BROKER_PROTOCOL_H*/
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