001/*
002 * Copyright 2002-2012 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.context.annotation;
018
019import java.util.Set;
020
021import org.w3c.dom.Element;
022
023import org.springframework.beans.factory.config.BeanDefinition;
024import org.springframework.beans.factory.config.BeanDefinitionHolder;
025import org.springframework.beans.factory.parsing.BeanComponentDefinition;
026import org.springframework.beans.factory.parsing.CompositeComponentDefinition;
027import org.springframework.beans.factory.xml.BeanDefinitionParser;
028import org.springframework.beans.factory.xml.ParserContext;
029
030/**
031 * Parser for the <context:annotation-config/> element.
032 *
033 * @author Mark Fisher
034 * @author Juergen Hoeller
035 * @author Christian Dupuis
036 * @since 2.5
037 * @see AnnotationConfigUtils
038 */
039public class AnnotationConfigBeanDefinitionParser implements BeanDefinitionParser {
040
041        @Override
042        public BeanDefinition parse(Element element, ParserContext parserContext) {
043                Object source = parserContext.extractSource(element);
044
045                // Obtain bean definitions for all relevant BeanPostProcessors.
046                Set<BeanDefinitionHolder> processorDefinitions =
047                                AnnotationConfigUtils.registerAnnotationConfigProcessors(parserContext.getRegistry(), source);
048
049                // Register component for the surrounding <context:annotation-config> element.
050                CompositeComponentDefinition compDefinition = new CompositeComponentDefinition(element.getTagName(), source);
051                parserContext.pushContainingComponent(compDefinition);
052
053                // Nest the concrete beans in the surrounding component.
054                for (BeanDefinitionHolder processorDefinition : processorDefinitions) {
055                        parserContext.registerComponent(new BeanComponentDefinition(processorDefinition));
056                }
057
058                // Finally register the composite component.
059                parserContext.popAndRegisterContainingComponent();
060
061                return null;
062        }
063
064}