spring AutowiredElementResolver 源码
spring AutowiredElementResolver 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/factory/aot/AutowiredElementResolver.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.beans.factory.aot;
import java.util.Set;
import javax.lang.model.element.Element;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.beans.factory.config.DependencyDescriptor;
import org.springframework.core.log.LogMessage;
/**
* Base class for resolvers that support autowiring related to an
* {@link Element}.
*
* @author Phillip Webb
* @author Stephane Nicoll
* @since 6.0
*/
abstract class AutowiredElementResolver {
private final Log logger = LogFactory.getLog(getClass());
protected final void registerDependentBeans(ConfigurableBeanFactory beanFactory,
String beanName, Set<String> autowiredBeanNames) {
for (String autowiredBeanName : autowiredBeanNames) {
if (beanFactory.containsBean(autowiredBeanName)) {
beanFactory.registerDependentBean(autowiredBeanName, beanName);
}
logger.trace(LogMessage.format(
"Autowiring by type from bean name %s' to bean named '%s'", beanName,
autowiredBeanName));
}
}
/**
* {@link DependencyDescriptor} that supports shortcut bean resolution.
*/
@SuppressWarnings("serial")
static class ShortcutDependencyDescriptor extends DependencyDescriptor {
private final String shortcut;
private final Class<?> requiredType;
public ShortcutDependencyDescriptor(DependencyDescriptor original,
String shortcut, Class<?> requiredType) {
super(original);
this.shortcut = shortcut;
this.requiredType = requiredType;
}
@Override
public Object resolveShortcut(BeanFactory beanFactory) {
return beanFactory.getBean(this.shortcut, this.requiredType);
}
}
}
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