source: other-projects/trunk/gs3-release-maker/tasks/sshtaskdef/src/mindbright/ssh/SSHChannel.java@ 14627

/******************************************************************************
 *
 * Copyright (c) 1998,99 by Mindbright Technology AB, Stockholm, Sweden.
 *                 www.mindbright.se, [email protected]
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 *****************************************************************************
 * $Author: mats $
 * $Date: 2000/03/07 16:44:34 $
 * $Name: rel1-2-1 $
 *****************************************************************************/
package mindbright.ssh;

public abstract class SSHChannel extends Thread {

  protected int                channelId;
  protected SSHChannelListener listener;

  public SSHChannel(int channelId) {
    super();
    this.channelId = channelId;
    this.listener  = null;
  }

  public void setSSHChannelListener(SSHChannelListener listener) {
    this.listener = listener;
  }

  public int getId() {
    return channelId;
  }

  public abstract void serviceLoop() throws Exception;

  public void close() {
  }

  public void run() {

    if(SSH.NETSCAPE_SECURITY_MODEL) {
      try {
    netscape.security.PrivilegeManager.enablePrivilege("TerminalEmulator");
      } catch (netscape.security.ForbiddenTargetException e) {
    // !!! A pity, we could have done so much fun... :-)
      }
    }

    try {
      serviceLoop();
    } catch (Exception e) {

      if(SSH.DEBUGMORE) {
    System.out.println("--- channel exit (exception is not an error):");
    e.printStackTrace();
    System.out.println("---");
      }

      close();
      if(listener != null)
    listener.close(this);

    } catch (ThreadDeath death) {
      SSH.logExtra("Channel killed " + channelId);
      throw death;
    }
  }

}