Apache Qpid - AMQP Messaging for Java JMS, C++, Python, Ruby, and .NET Apache Qpid Documentation
qpid/client/FailoverManager.h
Go to the documentation of this file.
00001 #ifndef QPID_CLIENT_FAILOVERMANAGER_H
00002 #define QPID_CLIENT_FAILOVERMANAGER_H
00003 
00004 /*
00005  *
00006  * Licensed to the Apache Software Foundation (ASF) under one
00007  * or more contributor license agreements.  See the NOTICE file
00008  * distributed with this work for additional information
00009  * regarding copyright ownership.  The ASF licenses this file
00010  * to you under the Apache License, Version 2.0 (the
00011  * "License"); you may not use this file except in compliance
00012  * with the License.  You may obtain a copy of the License at
00013  *
00014  *   http://www.apache.org/licenses/LICENSE-2.0
00015  *
00016  * Unless required by applicable law or agreed to in writing,
00017  * software distributed under the License is distributed on an
00018  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
00019  * KIND, either express or implied.  See the License for the
00020  * specific language governing permissions and limitations
00021  * under the License.
00022  *
00023  */
00024 
00025 #include "qpid/Exception.h"
00026 #include "qpid/client/AsyncSession.h"
00027 #include "qpid/client/ClientImportExport.h"
00028 #include "qpid/client/Connection.h"
00029 #include "qpid/client/ConnectionSettings.h"
00030 #include "qpid/client/FailoverListener.h"
00031 #include "qpid/sys/Monitor.h"
00032 #include <vector>
00033 
00034 namespace qpid {
00035 namespace client {
00036 
00037 struct CannotConnectException : qpid::Exception
00038 {
00039     CannotConnectException(const std::string& m) : qpid::Exception(m) {}
00040 };
00041 
00045 class QPID_CLIENT_CLASS_EXTERN FailoverManager
00046 {
00047   public:
00052     struct Command
00053     {
00064         virtual void execute(AsyncSession& session, bool isRetry) = 0;
00065         virtual ~Command() {}
00066     };
00067 
00068     struct ReconnectionStrategy
00069     {
00077         virtual void editUrlList(std::vector<Url>&  urls) = 0;
00078         virtual ~ReconnectionStrategy() {}
00079     };
00080 
00089     QPID_CLIENT_EXTERN FailoverManager(const ConnectionSettings& settings, ReconnectionStrategy* strategy = 0);
00100     QPID_CLIENT_EXTERN Connection& connect(std::vector<Url> brokers = std::vector<Url>());
00104     QPID_CLIENT_EXTERN Connection& getConnection();
00108     QPID_CLIENT_EXTERN void close();
00121     QPID_CLIENT_EXTERN void execute(Command&);
00122   private:
00123     enum State {IDLE, CONNECTING, CANT_CONNECT};
00124 
00125     qpid::sys::Monitor lock;
00126     Connection connection;
00127     std::auto_ptr<FailoverListener> failoverListener;
00128     ConnectionSettings settings;
00129     ReconnectionStrategy* strategy;
00130     State state;
00131 
00132     void attempt(Connection&, ConnectionSettings settings, std::vector<Url> urls);
00133     void attempt(Connection&, ConnectionSettings settings);
00134 };
00135 }} // namespace qpid::client
00136 
00137 #endif  

Qpid C++ API Reference
Generated on Mon Aug 22 2011 for Qpid C++ Client API by doxygen 1.7.4