001/* 002 * Copyright 2012-2018 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 * 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.function.client; 018 019import java.util.List; 020 021import org.springframework.beans.factory.ObjectProvider; 022import org.springframework.boot.autoconfigure.AutoConfigureAfter; 023import org.springframework.boot.autoconfigure.EnableAutoConfiguration; 024import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; 025import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; 026import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; 027import org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration; 028import org.springframework.boot.web.codec.CodecCustomizer; 029import org.springframework.boot.web.reactive.function.client.WebClientCustomizer; 030import org.springframework.context.annotation.Bean; 031import org.springframework.context.annotation.Configuration; 032import org.springframework.context.annotation.Scope; 033import org.springframework.core.annotation.Order; 034import org.springframework.web.reactive.function.client.WebClient; 035 036/** 037 * {@link EnableAutoConfiguration Auto-configuration} for {@link WebClient}. 038 * <p> 039 * This will produce a 040 * {@link org.springframework.web.reactive.function.client.WebClient.Builder 041 * WebClient.Builder} bean with the {@code prototype} scope, meaning each injection point 042 * will receive a newly cloned instance of the builder. 043 * 044 * @author Brian Clozel 045 * @since 2.0.0 046 */ 047@Configuration 048@ConditionalOnClass(WebClient.class) 049@AutoConfigureAfter({ CodecsAutoConfiguration.class, 050 ClientHttpConnectorAutoConfiguration.class }) 051public class WebClientAutoConfiguration { 052 053 private final WebClient.Builder webClientBuilder; 054 055 public WebClientAutoConfiguration( 056 ObjectProvider<WebClientCustomizer> customizerProvider) { 057 this.webClientBuilder = WebClient.builder(); 058 customizerProvider.orderedStream() 059 .forEach((customizer) -> customizer.customize(this.webClientBuilder)); 060 } 061 062 @Bean 063 @Scope("prototype") 064 @ConditionalOnMissingBean 065 public WebClient.Builder webClientBuilder() { 066 return this.webClientBuilder.clone(); 067 } 068 069 @Configuration 070 @ConditionalOnBean(CodecCustomizer.class) 071 protected static class WebClientCodecsConfiguration { 072 073 @Bean 074 @ConditionalOnMissingBean 075 @Order(0) 076 public WebClientCodecCustomizer exchangeStrategiesCustomizer( 077 List<CodecCustomizer> codecCustomizers) { 078 return new WebClientCodecCustomizer(codecCustomizers); 079 } 080 081 } 082 083}