| /* |
| * 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.spring.boot.beans.factory.config; |
| |
| import org.apache.dubbo.config.ServiceConfig; |
| import org.apache.dubbo.config.spring.ServiceBean; |
| |
| import org.springframework.beans.BeansException; |
| import org.springframework.beans.factory.DisposableBean; |
| import org.springframework.beans.factory.support.MergedBeanDefinitionPostProcessor; |
| import org.springframework.beans.factory.support.RootBeanDefinition; |
| import org.springframework.context.annotation.CommonAnnotationBeanPostProcessor; |
| import org.springframework.core.Ordered; |
| import org.springframework.core.PriorityOrdered; |
| |
| import java.util.HashMap; |
| import java.util.LinkedHashSet; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| import static org.springframework.util.ClassUtils.getUserClass; |
| import static org.springframework.util.ClassUtils.isAssignable; |
| |
| /** |
| * The post-processor for resolving the id conflict of {@link ServiceBean} when an interface is |
| * implemented by multiple services with different groups or versions that are exported on one provider |
| * <p> |
| * Current implementation is a temporary resolution, and will be removed in the future. |
| * |
| * @see CommonAnnotationBeanPostProcessor |
| * @since 2.7.7 |
| * @deprecated |
| */ |
| public class ServiceBeanIdConflictProcessor implements MergedBeanDefinitionPostProcessor, DisposableBean, PriorityOrdered { |
| |
| /** |
| * The key is the class names of interfaces that were exported by {@link ServiceBean} |
| * The value is bean names of {@link ServiceBean} or {@link ServiceConfig}. |
| */ |
| private Map<String, String> interfaceNamesToBeanNames = new HashMap<>(); |
| |
| /** |
| * Holds the bean names of {@link ServiceBean} or {@link ServiceConfig}. |
| */ |
| private Set<String> conflictedBeanNames = new LinkedHashSet<>(); |
| |
| @Override |
| public void postProcessMergedBeanDefinition(RootBeanDefinition beanDefinition, Class<?> beanType, String beanName) { |
| // Get raw bean type |
| Class<?> rawBeanType = getUserClass(beanType); |
| if (isAssignable(ServiceConfig.class, rawBeanType)) { // ServiceConfig type or sub-type |
| String interfaceName = (String) beanDefinition.getPropertyValues().get("interface"); |
| String mappedBeanName = interfaceNamesToBeanNames.putIfAbsent(interfaceName, beanName); |
| // If mapped bean name exists and does not equal current bean name |
| if (mappedBeanName != null && !mappedBeanName.equals(beanName)) { |
| // conflictedBeanNames will record current bean name. |
| conflictedBeanNames.add(beanName); |
| } |
| } |
| } |
| |
| @Override |
| public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { |
| if (conflictedBeanNames.contains(beanName) && bean instanceof ServiceConfig) { |
| ServiceConfig serviceConfig = (ServiceConfig) bean; |
| if (isConflictedServiceConfig(serviceConfig)) { |
| // Set id as the bean name |
| serviceConfig.setId(beanName); |
| } |
| |
| } |
| return bean; |
| } |
| |
| private boolean isConflictedServiceConfig(ServiceConfig serviceConfig) { |
| return Objects.equals(serviceConfig.getId(), serviceConfig.getInterface()); |
| } |
| |
| @Override |
| public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { |
| return bean; |
| } |
| |
| /** |
| * Keep the order being higher than {@link CommonAnnotationBeanPostProcessor#getOrder()} that is |
| * {@link Ordered#LOWEST_PRECEDENCE} |
| * |
| * @return {@link Ordered#LOWEST_PRECEDENCE} +1 |
| */ |
| @Override |
| public int getOrder() { |
| return LOWEST_PRECEDENCE + 1; |
| } |
| |
| @Override |
| public void destroy() throws Exception { |
| interfaceNamesToBeanNames.clear(); |
| conflictedBeanNames.clear(); |
| } |
| } |