/* | |
* Copyright 1999-2012 Alibaba Group. | |
* | |
* 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.dubbo.config.spring.extension; | |
import java.util.Set; | |
import org.springframework.context.ApplicationContext; | |
import com.alibaba.dubbo.common.extension.ExtensionFactory; | |
import com.alibaba.dubbo.common.utils.ConcurrentHashSet; | |
/** | |
* SpringExtensionFactory | |
* | |
* @author william.liangf | |
*/ | |
public class SpringExtensionFactory implements ExtensionFactory { | |
private static final Set<ApplicationContext> contexts = new ConcurrentHashSet<ApplicationContext>(); | |
public static void addApplicationContext(ApplicationContext context) { | |
contexts.add(context); | |
} | |
public static void removeApplicationContext(ApplicationContext context) { | |
contexts.remove(context); | |
} | |
@SuppressWarnings("unchecked") | |
public <T> T getExtension(Class<T> type, String name) { | |
for (ApplicationContext context : contexts) { | |
if (context.containsBean(name)) { | |
Object bean = context.getBean(name); | |
if (type.isInstance(bean)) { | |
return (T) bean; | |
} | |
} | |
} | |
return null; | |
} | |
} |