code: /*
   * Computoser is a music-composition algorithm and a website to present the results
   * Copyright (C) 2012-2014  Bozhidar Bozhanov
   *
   * Computoser is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   *
   * Computoser is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with Computoser.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package com.music.web.util;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import javax.inject.Inject;
  
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
  import org.springframework.web.servlet.handler.SimpleUrlHandlerMapping;
  import org.springframework.web.socket.sockjs.SockJsService;
  import org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler;
  import org.springframework.web.socket.sockjs.transport.handler.DefaultSockJsService;
  
  import com.music.web.websocket.GameHandler;
  
  @Configuration
  public class WebSocketConfigurer {
  
      @Inject
      private GameHandler gameHandler;
  
      @Bean
      public SimpleUrlHandlerMapping handlerMapping() {
  
          SockJsService sockJsService = new DefaultSockJsService(taskScheduler());
  
          Map<String, Object> urlMap = new HashMap<String, Object>();
          urlMap.put("/game/websocket/**", new SockJsHttpRequestHandler(sockJsService, gameHandler));
  
          SimpleUrlHandlerMapping hm = new SimpleUrlHandlerMapping();
          hm.setUrlMap(urlMap);
          return hm;
      }
  
      @Bean
      public ThreadPoolTaskScheduler taskScheduler() {
        ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
        taskScheduler.setThreadNamePrefix("SockJS-");
        return taskScheduler;
      }
  
  }