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* 1. update version 3.18.1 2. fix @SofaService Annotation parse * format * format --------- Co-authored-by: 致节 <hzj266771@antgroup.com>
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...-boot-project/sofa-boot/src/main/java/com/alipay/sofa/boot/util/SmartAnnotationUtils.java
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| /* | ||
| * 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 com.alipay.sofa.boot.util; | ||
|
|
||
| import org.springframework.core.annotation.MergedAnnotation; | ||
| import org.springframework.core.annotation.MergedAnnotations; | ||
|
|
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| import java.lang.annotation.Annotation; | ||
| import java.lang.reflect.AnnotatedElement; | ||
| import java.util.Collection; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| /** | ||
| * Utils to find suitable annotations. | ||
| * | ||
| * @author huzijie | ||
| * @version SmartAnnotationUtils.java, v 0.1 2023年06月20日 5:44 PM huzijie Exp $ | ||
| */ | ||
| public class SmartAnnotationUtils { | ||
|
|
||
| /** | ||
| * 使用 {@link MergedAnnotations.SearchStrategy#TYPE_HIERARCHY} 搜索策略获取最近的注解集合 | ||
| * <p> 如果元素上无注解，返回空的集合 | ||
| * <p> 如果元素上仅有一个注解，返回包含该注解的集合 | ||
| * <p> 如果元素上有多个注解，通过 {@link MergedAnnotations#get(Class)} 方法拿到最近的注解，返回的集合仅包含最近的注解所在元素上的注解 | ||
| * | ||
| * @param element 注解所在元素 | ||
| * @param annotationType 注解类 | ||
| * @param <T> 注解类型 | ||
| * @return 注解集合，可能为空或者多个，如果存在多个注解，仅保留最高优先级元素上的注解 | ||
| */ | ||
| public static <T extends Annotation> Collection<T> getAnnotations(AnnotatedElement element, | ||
| Class<T> annotationType) { | ||
| return getAnnotations(element, annotationType, | ||
| MergedAnnotations.SearchStrategy.TYPE_HIERARCHY); | ||
| } | ||
|
|
||
| /** | ||
| * 使用指定搜索策略获取最近的注解集合 | ||
| * <p> 如果元素上无注解，返回空的集合 | ||
| * <p> 如果元素上仅有一个注解，返回包含该注解的集合 | ||
| * <p> 如果元素上有多个注解，通过 {@link MergedAnnotations#get(Class)} 方法拿到最近的注解，返回的集合仅包含最近的注解所在元素上的注解 | ||
| * | ||
| * @param element 注解所在元素 | ||
| * @param annotationType 注解类 | ||
| * @param searchStrategy 搜索策略 | ||
| * @param <T> 注解类型 | ||
| * @return 注解集合，可能为空或者多个，如果存在多个注解，仅保留最高优先级元素上的注解 | ||
| */ | ||
| public static <T extends Annotation> Collection<T> getAnnotations(AnnotatedElement element, Class<T> annotationType, | ||
| MergedAnnotations.SearchStrategy searchStrategy) { | ||
| MergedAnnotations annotations = MergedAnnotations.from(element, searchStrategy); | ||
| List<T> sofaServiceList = annotations.stream(annotationType).map(MergedAnnotation::synthesize).collect(Collectors.toList()); | ||
| if (sofaServiceList.size() > 1) { | ||
| // 如果存在多个注解，先通过 get 方法拿到最高优先级的注解所在的 element | ||
| Object source = annotations.get(annotationType).getSource(); | ||
| // 排除非最高优先级 element 以外的注解 | ||
| return annotations.stream(annotationType) | ||
| .filter(annotation -> Objects.equals(annotation.getSource(), source)) | ||
| .map(MergedAnnotation::synthesize).collect(Collectors.toList()); | ||
| } else { | ||
| // 如果不存在注解或者只有一个注解，直接返回 | ||
| return sofaServiceList; | ||
| } | ||
| } | ||
| } |
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