content: /*
   * Copyright (c) 2019 abc123lzf <abc123lzf@126.com>
   *
   * 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.lzf.flyingsocks;
  
  import io.netty.channel.socket.SocketChannel;
  
  /**
   * 会话模板类
   *
   * @see com.lzf.flyingsocks.Session
   */
  public abstract class AbstractSession implements Session {
  
      /**
       * 用于通讯的SocketChannel
       */
      protected final SocketChannel socketChannel;
  
      /**
       * 连接建立时间
       */
      protected final long connectionTime;
  
      /**
       * 上次活跃时间
       */
      protected volatile long lastActiveTime;
  
  
      protected AbstractSession(SocketChannel socketChannel) {
          this.socketChannel = socketChannel;
          this.connectionTime = System.currentTimeMillis();
          this.lastActiveTime = lastActiveTime();
      }
  
      @Override
      public final long connectionTime() {
          return connectionTime;
      }
  
      @Override
      public final long lastActiveTime() {
          return lastActiveTime;
      }
  
      @Override
      public SocketChannel socketChannel() {
          return socketChannel;
      }
  }
  