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/*
*
* 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 _Bridge_
#define _Bridge_
#include "qpid/broker/PersistableConfig.h"
#include "qpid/framing/AMQP_ServerProxy.h"
#include "qpid/framing/ChannelHandler.h"
#include "qpid/framing/Buffer.h"
#include "qpid/framing/FrameHandler.h"
#include "qpid/framing/FieldTable.h"
#include "qpid/management/Manageable.h"
#include "qpid/broker/Exchange.h"
#include "qpid/broker/SessionHandler.h"
#include "qmf/org/apache/qpid/broker/ArgsLinkBridge.h"
#include "qmf/org/apache/qpid/broker/Bridge.h"
#include <boost/function.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <memory>
namespace qpid {
namespace broker {
class Connection;
class ConnectionState;
class Link;
class LinkRegistry;
class Bridge : public PersistableConfig,
public management::Manageable,
public Exchange::DynamicBridge,
public SessionHandler::ErrorListener,
public boost::enable_shared_from_this<Bridge>
{
public:
typedef boost::shared_ptr<Bridge> shared_ptr;
typedef boost::function<void(Bridge*)> CancellationListener;
typedef boost::function<void(Bridge&, SessionHandler&)> InitializeCallback;
Bridge(const std::string& name, Link* link, framing::ChannelId id, CancellationListener l,
const qmf::org::apache::qpid::broker::ArgsLinkBridge& args,
InitializeCallback init, const std::string& queueName="",
const std::string& altExchange=""
);
~Bridge();
QPID_BROKER_EXTERN void close();
bool isDurable() { return args.i_durable; }
framing::ChannelId getChannel() const { return channel; }
Link *getLink() const { return link; }
const std::string getSrc() const { return args.i_src; }
const std::string getDest() const { return args.i_dest; }
const std::string getKey() const { return args.i_key; }
bool isDetached() const { return detached; }
management::ManagementObject::shared_ptr GetManagementObject() const;
management::Manageable::status_t ManagementMethod(uint32_t methodId,
management::Args& args,
std::string& text);
// PersistableConfig:
void setPersistenceId(uint64_t id) const;
uint64_t getPersistenceId() const { return persistenceId; }
uint32_t encodedSize() const;
void encode(framing::Buffer& buffer) const;
const std::string& getName() const { return name; }
static const std::string ENCODED_IDENTIFIER;
static const std::string ENCODED_IDENTIFIER_V1;
static Bridge::shared_ptr decode(LinkRegistry& links, framing::Buffer& buffer);
static bool isEncodedBridge(const std::string& key);
// Exchange::DynamicBridge methods
void propagateBinding(const std::string& key, const std::string& tagList, const std::string& op, const std::string& origin, qpid::framing::FieldTable* extra_args=0);
void sendReorigin();
void ioThreadPropagateBinding(const std::string& queue, const std::string& exchange, const std::string& key, framing::FieldTable args);
bool containsLocalTag(const std::string& tagList) const;
const std::string& getLocalTag() const;
// Methods needed by initialization functions
std::string getQueueName() const { return queueName; }
const qmf::org::apache::qpid::broker::ArgsLinkBridge& getArgs() { return args; }
/** create a name for a bridge (if none supplied by user config) */
static std::string createName(const std::string& linkName,
const std::string& src,
const std::string& dest,
const std::string& key);
// SessionHandler::ErrorListener methods.
void connectionException(framing::connection::CloseCode code, const std::string& msg);
void channelException(framing::session::DetachCode, const std::string& msg);
void executionException(framing::execution::ErrorCode, const std::string& msg);
void detach();
void setErrorListener(boost::shared_ptr<ErrorListener> e) { errorListener = e; }
private:
struct PushHandler : framing::FrameHandler {
PushHandler(Connection* c) { conn = c; }
void handle(framing::AMQFrame& frame);
Connection* conn;
};
std::auto_ptr<PushHandler> pushHandler;
std::auto_ptr<framing::ChannelHandler> channelHandler;
std::auto_ptr<framing::AMQP_ServerProxy::Session> session;
std::auto_ptr<framing::AMQP_ServerProxy> peer;
Link* const link;
const framing::ChannelId channel;
qmf::org::apache::qpid::broker::ArgsLinkBridge args;
qmf::org::apache::qpid::broker::Bridge::shared_ptr mgmtObject;
CancellationListener listener;
std::string name;
std::string queueName;
std::string altEx;
mutable uint64_t persistenceId;
ConnectionState* connState;
Connection* conn;
InitializeCallback initialize;
bool detached; // Set when session is detached.
bool resetProxy();
// connection Management (called by owning Link)
void create(Connection& c, AsyncStore* const store);
void cancel(Connection& c);
void closed();
friend class Link; // to call create, cancel, closed()
boost::shared_ptr<ErrorListener> errorListener;
const bool useExistingQueue;
const std::string sessionName;
};
}}
#endif
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