spring CacheNamespaceHandler 源码
spring CacheNamespaceHandler 代码
文件路径：/spring-context/src/main/java/org/springframework/cache/config/CacheNamespaceHandler.java
/*
* Copyright 2002-2017 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.cache.config;
import org.w3c.dom.Element;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
import org.springframework.util.StringUtils;
/**
* {@code NamespaceHandler} allowing for the configuration of declarative
* cache management using either XML or using annotations.
*
* <p>This namespace handler is the central piece of functionality in the
* Spring cache management facilities.
*
* @author Costin Leau
* @since 3.1
*/
public class CacheNamespaceHandler extends NamespaceHandlerSupport {
static final String CACHE_MANAGER_ATTRIBUTE = "cache-manager";
static final String DEFAULT_CACHE_MANAGER_BEAN_NAME = "cacheManager";
static String extractCacheManager(Element element) {
return (element.hasAttribute(CacheNamespaceHandler.CACHE_MANAGER_ATTRIBUTE) ?
element.getAttribute(CacheNamespaceHandler.CACHE_MANAGER_ATTRIBUTE) :
CacheNamespaceHandler.DEFAULT_CACHE_MANAGER_BEAN_NAME);
}
static BeanDefinition parseKeyGenerator(Element element, BeanDefinition def) {
String name = element.getAttribute("key-generator");
if (StringUtils.hasText(name)) {
def.getPropertyValues().add("keyGenerator", new RuntimeBeanReference(name.trim()));
}
return def;
}
@Override
public void init() {
registerBeanDefinitionParser("annotation-driven", new AnnotationDrivenCacheBeanDefinitionParser());
registerBeanDefinitionParser("advice", new CacheAdviceParser());
}
}
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