001/* 002 * Copyright 2002-2016 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.web.servlet.config.annotation; 018 019import java.util.List; 020 021import org.springframework.beans.factory.annotation.Autowired; 022import org.springframework.context.annotation.Configuration; 023import org.springframework.format.FormatterRegistry; 024import org.springframework.http.converter.HttpMessageConverter; 025import org.springframework.util.CollectionUtils; 026import org.springframework.validation.MessageCodesResolver; 027import org.springframework.validation.Validator; 028import org.springframework.web.method.support.HandlerMethodArgumentResolver; 029import org.springframework.web.method.support.HandlerMethodReturnValueHandler; 030import org.springframework.web.servlet.HandlerExceptionResolver; 031 032/** 033 * A subclass of {@code WebMvcConfigurationSupport} that detects and delegates 034 * to all beans of type {@link WebMvcConfigurer} allowing them to customize the 035 * configuration provided by {@code WebMvcConfigurationSupport}. This is the 036 * class actually imported by {@link EnableWebMvc @EnableWebMvc}. 037 * 038 * @author Rossen Stoyanchev 039 * @since 3.1 040 */ 041@Configuration 042public class DelegatingWebMvcConfiguration extends WebMvcConfigurationSupport { 043 044 private final WebMvcConfigurerComposite configurers = new WebMvcConfigurerComposite(); 045 046 047 @Autowired(required = false) 048 public void setConfigurers(List<WebMvcConfigurer> configurers) { 049 if (!CollectionUtils.isEmpty(configurers)) { 050 this.configurers.addWebMvcConfigurers(configurers); 051 } 052 } 053 054 055 @Override 056 protected void configurePathMatch(PathMatchConfigurer configurer) { 057 this.configurers.configurePathMatch(configurer); 058 } 059 060 @Override 061 protected void configureContentNegotiation(ContentNegotiationConfigurer configurer) { 062 this.configurers.configureContentNegotiation(configurer); 063 } 064 065 @Override 066 protected void configureAsyncSupport(AsyncSupportConfigurer configurer) { 067 this.configurers.configureAsyncSupport(configurer); 068 } 069 070 @Override 071 protected void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) { 072 this.configurers.configureDefaultServletHandling(configurer); 073 } 074 075 @Override 076 protected void addFormatters(FormatterRegistry registry) { 077 this.configurers.addFormatters(registry); 078 } 079 080 @Override 081 protected void addInterceptors(InterceptorRegistry registry) { 082 this.configurers.addInterceptors(registry); 083 } 084 085 @Override 086 protected void addResourceHandlers(ResourceHandlerRegistry registry) { 087 this.configurers.addResourceHandlers(registry); 088 } 089 090 @Override 091 protected void addCorsMappings(CorsRegistry registry) { 092 this.configurers.addCorsMappings(registry); 093 } 094 095 @Override 096 protected void addViewControllers(ViewControllerRegistry registry) { 097 this.configurers.addViewControllers(registry); 098 } 099 100 @Override 101 protected void configureViewResolvers(ViewResolverRegistry registry) { 102 this.configurers.configureViewResolvers(registry); 103 } 104 105 @Override 106 protected void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) { 107 this.configurers.addArgumentResolvers(argumentResolvers); 108 } 109 110 @Override 111 protected void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers) { 112 this.configurers.addReturnValueHandlers(returnValueHandlers); 113 } 114 115 @Override 116 protected void configureMessageConverters(List<HttpMessageConverter<?>> converters) { 117 this.configurers.configureMessageConverters(converters); 118 } 119 120 @Override 121 protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) { 122 this.configurers.extendMessageConverters(converters); 123 } 124 125 @Override 126 protected void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) { 127 this.configurers.configureHandlerExceptionResolvers(exceptionResolvers); 128 } 129 130 @Override 131 protected void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) { 132 this.configurers.extendHandlerExceptionResolvers(exceptionResolvers); 133 } 134 135 @Override 136 protected Validator getValidator() { 137 return this.configurers.getValidator(); 138 } 139 140 @Override 141 protected MessageCodesResolver getMessageCodesResolver() { 142 return this.configurers.getMessageCodesResolver(); 143 } 144 145}