/*
 * Copyright 2002-2018 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
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package org.springframework.scheduling.annotation;

import org.springframework.context.annotation.AdviceMode;
import org.springframework.context.annotation.AdviceModeImportSelector;
import org.springframework.lang.Nullable;

Selects which implementation of AbstractAsyncConfiguration should be used based on the value of EnableAsync.mode on the importing @Configuration class.
Author:Chris Beams, Juergen Hoeller
See Also:
Since:3.1
/** * Selects which implementation of {@link AbstractAsyncConfiguration} should * be used based on the value of {@link EnableAsync#mode} on the importing * {@code @Configuration} class. * * @author Chris Beams * @author Juergen Hoeller * @since 3.1 * @see EnableAsync * @see ProxyAsyncConfiguration */
public class AsyncConfigurationSelector extends AdviceModeImportSelector<EnableAsync> { private static final String ASYNC_EXECUTION_ASPECT_CONFIGURATION_CLASS_NAME = "org.springframework.scheduling.aspectj.AspectJAsyncConfiguration";
Returns ProxyAsyncConfiguration or AspectJAsyncConfiguration for PROXY and ASPECTJ values of EnableAsync.mode(), respectively.
/** * Returns {@link ProxyAsyncConfiguration} or {@code AspectJAsyncConfiguration} * for {@code PROXY} and {@code ASPECTJ} values of {@link EnableAsync#mode()}, * respectively. */
@Override @Nullable public String[] selectImports(AdviceMode adviceMode) { switch (adviceMode) { case PROXY: return new String[] {ProxyAsyncConfiguration.class.getName()}; case ASPECTJ: return new String[] {ASYNC_EXECUTION_ASPECT_CONFIGURATION_CLASS_NAME}; default: return null; } } }