/*
 * Copyright 2002-2020 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.scheduling.annotation;

import java.lang.annotation.Annotation;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Role;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.scheduling.config.TaskManagementConfigUtils;
import org.springframework.util.Assert;

@Configuration class that registers the Spring infrastructure beans necessary to enable proxy-based asynchronous method execution.
Author:Chris Beams, Stephane Nicoll, Juergen Hoeller
See Also:
Since:3.1
/** * {@code @Configuration} class that registers the Spring infrastructure beans necessary * to enable proxy-based asynchronous method execution. * * @author Chris Beams * @author Stephane Nicoll * @author Juergen Hoeller * @since 3.1 * @see EnableAsync * @see AsyncConfigurationSelector */
@Configuration(proxyBeanMethods = false) @Role(BeanDefinition.ROLE_INFRASTRUCTURE) public class ProxyAsyncConfiguration extends AbstractAsyncConfiguration { @Bean(name = TaskManagementConfigUtils.ASYNC_ANNOTATION_PROCESSOR_BEAN_NAME) @Role(BeanDefinition.ROLE_INFRASTRUCTURE) public AsyncAnnotationBeanPostProcessor asyncAdvisor() { Assert.notNull(this.enableAsync, "@EnableAsync annotation metadata was not injected"); AsyncAnnotationBeanPostProcessor bpp = new AsyncAnnotationBeanPostProcessor(); bpp.configure(this.executor, this.exceptionHandler); Class<? extends Annotation> customAsyncAnnotation = this.enableAsync.getClass("annotation"); if (customAsyncAnnotation != AnnotationUtils.getDefaultValue(EnableAsync.class, "annotation")) { bpp.setAsyncAnnotationType(customAsyncAnnotation); } bpp.setProxyTargetClass(this.enableAsync.getBoolean("proxyTargetClass")); bpp.setOrder(this.enableAsync.<Integer>getNumber("order")); return bpp; } }