| /* |
| * 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.servicecomb.provider.pojo.reference; |
| |
| import java.lang.reflect.Field; |
| |
| import org.apache.servicecomb.provider.pojo.RpcReference; |
| import org.springframework.beans.BeansException; |
| import org.springframework.beans.factory.config.BeanPostProcessor; |
| import org.springframework.context.EmbeddedValueResolverAware; |
| import org.springframework.stereotype.Component; |
| import org.springframework.util.ReflectionUtils; |
| import org.springframework.util.StringValueResolver; |
| |
| @Component |
| public class RpcReferenceProcessor implements BeanPostProcessor, EmbeddedValueResolverAware { |
| private StringValueResolver resolver; |
| |
| @Override |
| public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { |
| // 扫描所有field,处理扩展的field标注 |
| ReflectionUtils.doWithFields(bean.getClass(), field -> processConsumerField(bean, field)); |
| |
| return bean; |
| } |
| |
| @Override |
| public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { |
| return bean; |
| } |
| |
| protected void processConsumerField(Object bean, Field field) { |
| RpcReference reference = field.getAnnotation(RpcReference.class); |
| if (reference == null) { |
| return; |
| } |
| |
| handleReferenceField(bean, field, reference); |
| } |
| |
| @Override |
| public void setEmbeddedValueResolver(StringValueResolver resolver) { |
| this.resolver = resolver; |
| } |
| |
| private void handleReferenceField(Object obj, Field field, |
| RpcReference reference) { |
| String microserviceName = reference.microserviceName(); |
| microserviceName = resolver.resolveStringValue(microserviceName); |
| |
| PojoReferenceMeta pojoReference = new PojoReferenceMeta(); |
| pojoReference.setMicroserviceName(microserviceName); |
| pojoReference.setSchemaId(reference.schemaId()); |
| pojoReference.setConsumerIntf(field.getType()); |
| |
| pojoReference.afterPropertiesSet(); |
| |
| ReflectionUtils.makeAccessible(field); |
| ReflectionUtils.setField(field, obj, pojoReference.getProxy()); |
| } |
| } |