/**
* Copyright (C) 2010-2013 Alibaba Group Holding Limited
*
* Licensed 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.
*/
package com.alibaba.rocketmq.client.impl;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import com.alibaba.rocketmq.client.ClientConfig;
import com.alibaba.rocketmq.client.impl.factory.MQClientFactory;
/**
* Client单例管理
*
* @author shijia.wxr<vintage.wang@gmail.com>
* @since 2013-7-24
*/
public class MQClientManager {
private static MQClientManager instance = new MQClientManager();
private AtomicInteger factoryIndexGenerator = new AtomicInteger();
private ConcurrentHashMap<String/* clientId */, MQClientFactory> factoryTable =
new ConcurrentHashMap<String, MQClientFactory>();
private MQClientManager() {
}
public static MQClientManager getInstance() {
return instance;
}
public MQClientFactory getAndCreateMQClientFactory(final ClientConfig clientConfig) {
String clientId = clientConfig.buildMQClientId();
MQClientFactory factory = this.factoryTable.get(clientId);
if (null == factory) {
factory =
new MQClientFactory(clientConfig.cloneClientConfig(),
this.factoryIndexGenerator.getAndIncrement(), clientId);
MQClientFactory prev = this.factoryTable.putIfAbsent(clientId, factory);
if (prev != null) {
factory = prev;
}
else {
// TODO log
}
}
return factory;
}
public void removeClientFactory(final String clientId) {
this.factoryTable.remove(clientId);
}
}