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#ifndef QPID_HA_CONNECTIONOBSERVER_H
#define QPID_HA_CONNECTIONOBSERVER_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 "types.h"
#include "qpid/broker/ConnectionObserver.h"
#include "qpid/types/Uuid.h"
#include "qpid/sys/Mutex.h"
#include "boost/shared_ptr.hpp"
namespace qpid {
struct Address;
namespace ha {
class BrokerInfo;
class HaBroker;
class LogPrefix;
/**
* Observes connections, delegates to another ConnectionObserver for
* actions specific to primary or backup.
*
* THREAD SAFE: called in arbitrary connection threads.
*
* Main role of this class is to provide a continuous observer object
* on the connection so we can't lose observations between removing
* one observer and adding another.
*/
class ConnectionObserver : public broker::ConnectionObserver
{
public:
typedef boost::shared_ptr<broker::ConnectionObserver> ObserverPtr;
static const std::string ADMIN_TAG;
static const std::string BACKUP_TAG;
static const std::string ADDRESS_TAG;
static bool getBrokerInfo(const broker::Connection& connection, BrokerInfo&);
static bool getAddress(const broker::Connection& connection, Address&);
ConnectionObserver(HaBroker& haBroker, const types::Uuid& self);
void setObserver(const ObserverPtr&);
ObserverPtr getObserver();
void reset();
void opened(broker::Connection& connection);
void closed(broker::Connection& connection);
private:
bool isSelf(const broker::Connection&);
sys::Mutex lock;
HaBroker& haBroker;
const LogPrefix& logPrefix;
ObserverPtr observer;
types::Uuid self;
};
}} // namespace qpid::ha
#endif /*!QPID_HA_CONNECTIONOBSERVER_H*/
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