spring StandardStereotypesProvider 源码
spring StandardStereotypesProvider 代码
文件路径：/spring-context-indexer/src/main/java/org/springframework/context/index/processor/StandardStereotypesProvider.java
/*
* Copyright 2002-2022 the original author or authors.
*
* 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
*
* https://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.springframework.context.index.processor;
import java.util.LinkedHashSet;
import java.util.Set;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
/**
* A {@link StereotypesProvider} that extracts a stereotype for each
* {@code jakarta.*} annotation <i>present</i> on a class or interface.
*
* @author Stephane Nicoll
* @since 5.0
*/
class StandardStereotypesProvider implements StereotypesProvider {
private final TypeHelper typeHelper;
StandardStereotypesProvider(TypeHelper typeHelper) {
this.typeHelper = typeHelper;
}
@Override
public Set<String> getStereotypes(Element element) {
Set<String> stereotypes = new LinkedHashSet<>();
ElementKind kind = element.getKind();
if (kind != ElementKind.CLASS && kind != ElementKind.INTERFACE) {
return stereotypes;
}
for (AnnotationMirror annotation : this.typeHelper.getAllAnnotationMirrors(element)) {
String type = this.typeHelper.getType(annotation);
if (type.startsWith("jakarta.")) {
stereotypes.add(type);
}
}
return stereotypes;
}
}
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