| /* |
| * 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. |
| */ |
| package org.apache.dubbo.config.spring.extension; |
| |
| import org.apache.dubbo.common.extension.ExtensionFactory; |
| import org.apache.dubbo.common.extension.SPI; |
| import org.apache.dubbo.common.logger.Logger; |
| import org.apache.dubbo.common.logger.LoggerFactory; |
| import org.apache.dubbo.common.utils.ConcurrentHashSet; |
| |
| import com.alibaba.spring.util.BeanFactoryUtils; |
| import org.springframework.context.ApplicationContext; |
| import org.springframework.context.ConfigurableApplicationContext; |
| |
| import java.util.Set; |
| |
| /** |
| * SpringExtensionFactory |
| */ |
| public class SpringExtensionFactory implements ExtensionFactory { |
| private static final Logger logger = LoggerFactory.getLogger(SpringExtensionFactory.class); |
| |
| private static final Set<ApplicationContext> CONTEXTS = new ConcurrentHashSet<ApplicationContext>(); |
| |
| public static void addApplicationContext(ApplicationContext context) { |
| CONTEXTS.add(context); |
| if (context instanceof ConfigurableApplicationContext) { |
| ((ConfigurableApplicationContext) context).registerShutdownHook(); |
| } |
| } |
| |
| public static void removeApplicationContext(ApplicationContext context) { |
| CONTEXTS.remove(context); |
| } |
| |
| public static Set<ApplicationContext> getContexts() { |
| return CONTEXTS; |
| } |
| |
| // currently for test purpose |
| public static void clearContexts() { |
| CONTEXTS.clear(); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public <T> T getExtension(Class<T> type, String name) { |
| |
| //SPI should be get from SpiExtensionFactory |
| if (type.isInterface() && type.isAnnotationPresent(SPI.class)) { |
| return null; |
| } |
| |
| for (ApplicationContext context : CONTEXTS) { |
| T bean = BeanFactoryUtils.getOptionalBean(context, name, type); |
| if (bean != null) { |
| return bean; |
| } |
| } |
| |
| //logger.warn("No spring extension (bean) named:" + name + ", try to find an extension (bean) of type " + type.getName()); |
| |
| return null; |
| } |
| } |