JavaLayerException.java

/*
 * 11/19/04		1.0 moved to LGPL.
 * 12/12/99		Initial version.	mdm@techie.com
 *-----------------------------------------------------------------------
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library 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 Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *----------------------------------------------------------------------
 */

package audio.javazoom.jl.decoder;

import java.io.PrintStream;


/**
 * The JavaLayerException is the base class for all API-level
 * exceptions thrown by JavaLayer. To facilitate conversion and 
 * common handling of exceptions from other domains, the class 
 * can delegate some functionality to a contained Throwable instance. 
 * <p> 
 * 
 * @author MDM
 */
public class JavaLayerException extends Exception
{
	
	private Throwable		exception;
	
	
	public JavaLayerException()
	{
	}
	
	public JavaLayerException(String msg)
	{
		super(msg);
	}
	
	public JavaLayerException(String msg, Throwable t)
	{
		super(msg);
		exception = t;
	}
	
	public Throwable getException()
	{
		return exception;	
	}
	
	
	public void printStackTrace()
	{
		printStackTrace(System.err);	
	}
	
	public void printStackTrace(PrintStream ps)
	{
		if (this.exception==null)
		{
			super.printStackTrace(ps);	
		}
		else
		{
			exception.printStackTrace();
		}
	}
	
	
}