code: //==============================================================================
  //	
  //	Copyright (c) 2002-
  //	Authors:
  //	* Andrew Hinton <ug60axh@cs.bham.ac.uk> (University of Birmingham)
  //	* Dave Parker <david.parker@comlab.ox.ac.uk> (University of Oxford, formerly University of Birmingham)
  //	
  //------------------------------------------------------------------------------
  //	
  //	This file is part of PRISM.
  //	
  //	PRISM 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.
  //	
  //	PRISM 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 PRISM; if not, write to the Free Software Foundation,
  //	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  //	
  //==============================================================================
  
  package userinterface.model.computation;
  
  import java.io.*;
  import javax.swing.*;
  import userinterface.*;
  import userinterface.model.*;
  import userinterface.model.pepaModel.*;
  import userinterface.util.*;
  
  public class SavePEPAModelThread extends Thread
  {
  	private GUIModelEditor editor;
  	private GUIMultiModelHandler handler;
  	private File f;
  	private GUIPlugin plug;
  	private Exception ex;
  	
  	/** Creates a new instance of SavePEPAModelThread */
  	public SavePEPAModelThread(File f, GUIMultiModelHandler handler, GUIModelEditor editor)
  	{
  		this.editor = editor;
  		this.handler = handler;
  		this.f = f;
  		plug = handler.getGUIPlugin();	
  		ex = null;
  	}
  	
  	public void run()
  	{
  		try
  		{
  			//notify the interface of the start of computation and save the content of editor to f
  			SwingUtilities.invokeAndWait(new Runnable() { public void run() {
  				try
  				{
  					plug.startProgress();
  					plug.notifyEventListeners(new GUIComputationEvent(GUIComputationEvent.COMPUTATION_START, plug));
  					plug.setTaskBarText("Saving model...");
  					((GUIPepaModelEditor)editor).write(new FileWriter(f));
  				}
  				catch(IOException e)
  				{
  					ex = e;
  				}
  				catch(ClassCastException e)
  				{
  					ex = e;
  				}
  			}});
  			
  			//If there was a problem with the save, notify the interface.
  			if(ex != null) {
  				SwingUtilities.invokeAndWait(new Runnable() { public void run() {
  					plug.stopProgress(); 
  					plug.notifyEventListeners(new GUIComputationEvent(GUIComputationEvent.COMPUTATION_ERROR, plug));
  					plug.setTaskBarText("Saving model... error.");
  					plug.error("Could not save to file \"" + f + "\"");
  				}});
  				return;
  			}
  			
  			//If we get here, the save has been successful, notify the interface and tell the handler.
  			SwingUtilities.invokeAndWait(new Runnable() { public void run() {
  				plug.stopProgress(); 
  				plug.setTaskBarText("Saving model... done.");
  				plug.notifyEventListeners(new GUIComputationEvent(GUIComputationEvent.COMPUTATION_DONE, plug));
  				handler.pepaFileWasSaved(f);
  			}});
  		}
  		// catch and ignore any thread exceptions
  		catch (java.lang.InterruptedException e) {}
  		catch (java.lang.reflect.InvocationTargetException e) {}
  	}
  }
  