spring AspectJAutoProxyBeanDefinitionParser 源码
spring AspectJAutoProxyBeanDefinitionParser 代码
文件路径：/spring-aop/src/main/java/org/springframework/aop/config/AspectJAutoProxyBeanDefinitionParser.java
/*
* Copyright 2002-2021 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.aop.config;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.TypedStringValue;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.lang.Nullable;
/**
* {@link BeanDefinitionParser} for the {@code aspectj-autoproxy} tag,
* enabling the automatic application of @AspectJ-style aspects found in
* the {@link org.springframework.beans.factory.BeanFactory}.
*
* @author Rob Harrop
* @author Juergen Hoeller
* @since 2.0
*/
class AspectJAutoProxyBeanDefinitionParser implements BeanDefinitionParser {
@Override
@Nullable
public BeanDefinition parse(Element element, ParserContext parserContext) {
AopNamespaceUtils.registerAspectJAnnotationAutoProxyCreatorIfNecessary(parserContext, element);
extendBeanDefinition(element, parserContext);
return null;
}
private void extendBeanDefinition(Element element, ParserContext parserContext) {
BeanDefinition beanDef =
parserContext.getRegistry().getBeanDefinition(AopConfigUtils.AUTO_PROXY_CREATOR_BEAN_NAME);
if (element.hasChildNodes()) {
addIncludePatterns(element, parserContext, beanDef);
}
}
private void addIncludePatterns(Element element, ParserContext parserContext, BeanDefinition beanDef) {
ManagedList<TypedStringValue> includePatterns = new ManagedList<>();
NodeList childNodes = element.getChildNodes();
for (int i = 0; i < childNodes.getLength(); i++) {
Node node = childNodes.item(i);
if (node instanceof Element includeElement) {
TypedStringValue valueHolder = new TypedStringValue(includeElement.getAttribute("name"));
valueHolder.setSource(parserContext.extractSource(includeElement));
includePatterns.add(valueHolder);
}
}
if (!includePatterns.isEmpty()) {
includePatterns.setSource(parserContext.extractSource(element));
beanDef.getPropertyValues().add("includePatterns", includePatterns);
}
}
}
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