content: /*
   * Latke - 一款以 JSON 为主的 Java Web 框架
   * Copyright (c) 2009-present, b3log.org
   *
   * Latke is licensed under Mulan PSL v2.
   * You can use this software according to the terms and conditions of the Mulan PSL v2.
   * You may obtain a copy of Mulan PSL v2 at:
   *         http://license.coscl.org.cn/MulanPSL2
   * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
   * See the Mulan PSL v2 for more details.
   */
  package org.b3log.latke.http;
  
  /**
   * Websocket channel.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 1.0.0.0, Nov 6, 2019
   * @since 3.0.2
   */
  public interface WebSocketChannel {
  
      void onConnect(final WebSocketSession session);
  
      void onMessage(final Message message);
  
      void onClose(final WebSocketSession session);
  
      void onError(final Error error);
  
      class Message {
          public String text;
          public WebSocketSession session;
  
          Message(final String text, final WebSocketSession session) {
              this.text = text;
              this.session = session;
          }
      }
  
      class Error {
          public Throwable cause;
          public WebSocketSession session;
  
          Error(final Throwable cause, final WebSocketSession session) {
              this.cause = cause;
              this.session = session;
          }
      }
  }
  