001/* 002 * Copyright 2002-2013 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.socket.config.annotation; 018 019import java.util.ArrayList; 020import java.util.List; 021 022import org.springframework.beans.factory.annotation.Autowired; 023import org.springframework.context.annotation.Configuration; 024import org.springframework.util.CollectionUtils; 025 026/** 027 * A variation of {@link WebSocketConfigurationSupport} that detects implementations of 028 * {@link WebSocketConfigurer} in Spring configuration and invokes them in order to 029 * configure WebSocket request handling. 030 * 031 * @author Rossen Stoyanchev 032 * @since 4.0 033 */ 034@Configuration 035public class DelegatingWebSocketConfiguration extends WebSocketConfigurationSupport { 036 037 private final List<WebSocketConfigurer> configurers = new ArrayList<WebSocketConfigurer>(); 038 039 040 @Autowired(required = false) 041 public void setConfigurers(List<WebSocketConfigurer> configurers) { 042 if (!CollectionUtils.isEmpty(configurers)) { 043 this.configurers.addAll(configurers); 044 } 045 } 046 047 048 @Override 049 protected void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { 050 for (WebSocketConfigurer configurer : this.configurers) { 051 configurer.registerWebSocketHandlers(registry); 052 } 053 } 054 055}