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    /* SimpleExternalProgramMonitor.java
     *
     * created: Wed Aug  6 2003
     *
     * This file is part of Artemis
     *
     * Copyright (C) 2003  Genome Research Limited
     *
     * 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.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
     *
     * $Header: //tmp/pathsoft/artemis/uk/ac/sanger/artemis/SimpleExternalProgramMonitor.java,v 1.1 2004-06-09 09:45:09 tjc Exp $
     */
    
    package uk.ac.sanger.artemis;
    
    import java.util.Vector;
    
    /**
     *  This class contains methods common to all implementations of
     *  ExternalProgramMonitor
     *
     *  @author Kim Rutherford <kmr@sanger.ac.uk>
     *  @version $Id: SimpleExternalProgramMonitor.java,v 1.1 2004-06-09 09:45:09 tjc Exp $
     **/
    
    public class SimpleExternalProgramMonitor
        extends Thread
        implements ExternalProgramMonitor 
    {
    
      /** Process name that was passed to the constructor. */
      final public String name;
    
      /** The Logger that was passed to the constructor. */
      final private Logger logger;
    
      /**
       *  Create a new SimpleExternalProgramMonitor.
       *  @param name The name of the external program that is being monitored.
       *  @param logger The log for errors, STDOUT and STDERR of the external
       *    program.
       **/
      public SimpleExternalProgramMonitor(final String name,
                                          final Logger logger)
      {
        this.name = name;
        this.logger = logger;
      }
    
      /**
       *  Add a listener for ExternalProgramEvents.
       **/
      public void addExternalProgramListener (ExternalProgramListener l) 
      {
        listeners.add (l);
      }
    
      /**
       *  Send the given event to all the listeners.
       **/
      protected void sendEvent(ExternalProgramEvent e) 
      {
        for(int i = 0 ; i < listeners.size () ; ++i) 
          ((ExternalProgramListener)listeners.elementAt(i)).statusChanged (e);
      }
    
      private Vector listeners = new Vector ();
    
      /**
       *  Return the Logger that was passed to the constructor.
       **/
      public Logger getLogger()
      {
        return logger;
      }
    
      /**
       *  Return the name of the external program we are monitoring.
       **/
       public String getProgramName()
       {
         return name;
       }
    
    }