spring ScopedProxyBeanDefinitionDecorator 源码
spring ScopedProxyBeanDefinitionDecorator 代码
文件路径：/spring-aop/src/main/java/org/springframework/aop/config/ScopedProxyBeanDefinitionDecorator.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.springframework.aop.scope.ScopedProxyUtils;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.xml.BeanDefinitionDecorator;
import org.springframework.beans.factory.xml.ParserContext;
/**
* {@link BeanDefinitionDecorator} responsible for parsing the
* {@code <aop:scoped-proxy/>} tag.
*
* @author Rob Harrop
* @author Juergen Hoeller
* @author Mark Fisher
* @since 2.0
*/
class ScopedProxyBeanDefinitionDecorator implements BeanDefinitionDecorator {
private static final String PROXY_TARGET_CLASS = "proxy-target-class";
@Override
public BeanDefinitionHolder decorate(Node node, BeanDefinitionHolder definition, ParserContext parserContext) {
boolean proxyTargetClass = true;
if (node instanceof Element ele) {
if (ele.hasAttribute(PROXY_TARGET_CLASS)) {
proxyTargetClass = Boolean.parseBoolean(ele.getAttribute(PROXY_TARGET_CLASS));
}
}
// Register the original bean definition as it will be referenced by the scoped proxy
// and is relevant for tooling (validation, navigation).
BeanDefinitionHolder holder =
ScopedProxyUtils.createScopedProxy(definition, parserContext.getRegistry(), proxyTargetClass);
String targetBeanName = ScopedProxyUtils.getTargetBeanName(definition.getBeanName());
parserContext.getReaderContext().fireComponentRegistered(
new BeanComponentDefinition(definition.getBeanDefinition(), targetBeanName));
return holder;
}
}
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