content: /*
   * Copyright (c) 2010-2018 Nathan Rajlich
   *
   *  Permission is hereby granted, free of charge, to any person
   *  obtaining a copy of this software and associated documentation
   *  files (the "Software"), to deal in the Software without
   *  restriction, including without limitation the rights to use,
   *  copy, modify, merge, publish, distribute, sublicense, and/or sell
   *  copies of the Software, and to permit persons to whom the
   *  Software is furnished to do so, subject to the following
   *  conditions:
   *
   *  The above copyright notice and this permission notice shall be
   *  included in all copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
   *  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   *  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
   *  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   *  OTHER DEALINGS IN THE SOFTWARE.
   */
  
  package com.alipay.api.java_websocket;
  
  import com.alipay.api.java_websocket.drafts.Draft;
  import com.alipay.api.java_websocket.exceptions.InvalidDataException;
  import com.alipay.api.java_websocket.framing.Framedata;
  import com.alipay.api.java_websocket.framing.PingFrame;
  import com.alipay.api.java_websocket.framing.PongFrame;
  import com.alipay.api.java_websocket.handshake.ClientHandshake;
  import com.alipay.api.java_websocket.handshake.HandshakeImpl1Server;
  import com.alipay.api.java_websocket.handshake.ServerHandshake;
  import com.alipay.api.java_websocket.handshake.ServerHandshakeBuilder;
  
  /**
   * This class default implements all methods of the WebSocketListener that can be overridden optionally when advances functionalities is
   * needed.<br>
   **/
  public abstract class WebSocketAdapter implements WebSocketListener {
  
      /**
       * This default implementation does not do anything. Go ahead and overwrite it.
       *
       * @see WebSocketListener#onWebsocketHandshakeReceivedAsServer(WebSocket, Draft, ClientHandshake)
       */
  
      public ServerHandshakeBuilder onWebsocketHandshakeReceivedAsServer(WebSocket conn, Draft draft, ClientHandshake request) throws
              InvalidDataException {
          return new HandshakeImpl1Server();
      }
  
      public void onWebsocketHandshakeReceivedAsClient(WebSocket conn, ClientHandshake request, ServerHandshake response) throws
              InvalidDataException {
          //To overwrite
      }
  
      /**
       * This default implementation does not do anything which will cause the connections to always progress.
       *
       * @see WebSocketListener#onWebsocketHandshakeSentAsClient(WebSocket, ClientHandshake)
       */
  
      public void onWebsocketHandshakeSentAsClient(WebSocket conn, ClientHandshake request) throws InvalidDataException {
          //To overwrite
      }
  
      /**
       * This default implementation will send a pong in response to the received ping. The pong frame will have the same payload as the ping
       * frame.
       *
       * @see WebSocketListener#onWebsocketPing(WebSocket, Framedata)
       */
  
      public void onWebsocketPing(WebSocket conn, Framedata f) {
          conn.sendFrame(new PongFrame((PingFrame) f));
      }
  
      /**
       * This default implementation does not do anything. Go ahead and overwrite it.
       *
       * @see WebSocketListener#onWebsocketPong(WebSocket, Framedata)
       */
  
      public void onWebsocketPong(WebSocket conn, Framedata f) {
          //To overwrite
      }
  }
  