001/*
002 * Copyright 2012-2017 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 *      http://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.boot.autoconfigure.web.reactive;
018
019import org.springframework.boot.autoconfigure.AutoConfigureAfter;
020import org.springframework.boot.autoconfigure.AutoConfigureOrder;
021import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
022import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
023import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
024import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
025import org.springframework.context.ApplicationContext;
026import org.springframework.context.annotation.Bean;
027import org.springframework.context.annotation.Configuration;
028import org.springframework.core.Ordered;
029import org.springframework.http.server.reactive.HttpHandler;
030import org.springframework.web.reactive.DispatcherHandler;
031import org.springframework.web.server.adapter.WebHttpHandlerBuilder;
032
033/**
034 * {@link EnableAutoConfiguration Auto-configuration} for {@link HttpHandler}.
035 *
036 * @author Brian Clozel
037 * @author Stephane Nicoll
038 * @since 2.0.0
039 */
040@Configuration
041@ConditionalOnClass({ DispatcherHandler.class, HttpHandler.class })
042@ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.REACTIVE)
043@ConditionalOnMissingBean(HttpHandler.class)
044@AutoConfigureAfter({ WebFluxAutoConfiguration.class })
045@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE + 10)
046public class HttpHandlerAutoConfiguration {
047
048        @Configuration
049        public static class AnnotationConfig {
050
051                private ApplicationContext applicationContext;
052
053                public AnnotationConfig(ApplicationContext applicationContext) {
054                        this.applicationContext = applicationContext;
055                }
056
057                @Bean
058                public HttpHandler httpHandler() {
059                        return WebHttpHandlerBuilder.applicationContext(this.applicationContext)
060                                        .build();
061                }
062
063        }
064
065}