001/*
002 * Copyright 2002-2018 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.scheduling.annotation;
018
019import java.lang.annotation.Annotation;
020
021import org.springframework.beans.factory.config.BeanDefinition;
022import org.springframework.context.annotation.Bean;
023import org.springframework.context.annotation.Configuration;
024import org.springframework.context.annotation.Role;
025import org.springframework.core.annotation.AnnotationUtils;
026import org.springframework.scheduling.config.TaskManagementConfigUtils;
027import org.springframework.util.Assert;
028
029/**
030 * {@code @Configuration} class that registers the Spring infrastructure beans necessary
031 * to enable proxy-based asynchronous method execution.
032 *
033 * @author Chris Beams
034 * @author Stephane Nicoll
035 * @author Juergen Hoeller
036 * @since 3.1
037 * @see EnableAsync
038 * @see AsyncConfigurationSelector
039 */
040@Configuration
041@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
042public class ProxyAsyncConfiguration extends AbstractAsyncConfiguration {
043
044        @Bean(name = TaskManagementConfigUtils.ASYNC_ANNOTATION_PROCESSOR_BEAN_NAME)
045        @Role(BeanDefinition.ROLE_INFRASTRUCTURE)
046        public AsyncAnnotationBeanPostProcessor asyncAdvisor() {
047                Assert.notNull(this.enableAsync, "@EnableAsync annotation metadata was not injected");
048                AsyncAnnotationBeanPostProcessor bpp = new AsyncAnnotationBeanPostProcessor();
049                bpp.configure(this.executor, this.exceptionHandler);
050                Class<? extends Annotation> customAsyncAnnotation = this.enableAsync.getClass("annotation");
051                if (customAsyncAnnotation != AnnotationUtils.getDefaultValue(EnableAsync.class, "annotation")) {
052                        bpp.setAsyncAnnotationType(customAsyncAnnotation);
053                }
054                bpp.setProxyTargetClass(this.enableAsync.getBoolean("proxyTargetClass"));
055                bpp.setOrder(this.enableAsync.<Integer>getNumber("order"));
056                return bpp;
057        }
058
059}