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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.
*
*/
using System;
namespace Apache.Qpid.Client.Qms.Failover
{
public class FailoverSingleServer : IFailoverMethod
{
/** The default number of times to rety a conection to this server */
public const int DEFAULT_SERVER_RETRIES = 1;
/**
* The details of the Single Server
*/
private IBrokerInfo _brokerDetail;
/**
* The number of times to retry connecting to the sever
*/
private int _retries;
/**
* The current number of attempts made to the server
*/
private int _currentRetries;
public FailoverSingleServer(IConnectionInfo connectionDetails)
{
if (connectionDetails.BrokerCount > 0)
{
SetBroker(connectionDetails.GetBrokerInfo(0));
}
else
{
throw new ArgumentException("BrokerInfo details required for connection.");
}
}
public FailoverSingleServer(IBrokerInfo brokerDetail)
{
SetBroker(brokerDetail);
}
public void Reset()
{
_currentRetries = -1;
}
public bool FailoverAllowed()
{
return _currentRetries < _retries;
}
public void AttainedConnection()
{
Reset();
}
public IBrokerInfo GetCurrentBrokerInfo()
{
return _brokerDetail;
}
public IBrokerInfo GetNextBrokerDetails()
{
if (_currentRetries == _retries)
{
return null;
}
else
{
if (_currentRetries < _retries)
{
_currentRetries ++;
}
return _brokerDetail;
}
}
public void SetBroker(IBrokerInfo broker)
{
if (broker == null)
{
throw new ArgumentException("BrokerInfo details cannot be null");
}
_brokerDetail = broker;
String retries = broker.GetOption(BrokerInfoConstants.OPTIONS_RETRY);
if (retries != null)
{
try
{
_retries = int.Parse(retries);
}
catch (FormatException)
{
_retries = DEFAULT_SERVER_RETRIES;
}
}
else
{
_retries = DEFAULT_SERVER_RETRIES;
}
Reset();
}
public void SetRetries(int retries)
{
_retries = retries;
}
public String MethodName
{
get { return "Single Server"; }
}
public String toString()
{
return "SingleServer:\n"+
"Max Retries:"+_retries+
"\nCurrent Retry:"+_currentRetries+
"\n"+_brokerDetail+"\n";
}
}
}
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