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/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2000 Michael Powers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/
package net.wotonomy.foundation.internal;
import java.io.PrintStream;
import java.io.PrintWriter;
/**
* This is a simple RuntimeException that can encapsulate
* another throwable. Behaves as a normal RuntimeException
* except that it prints a stack trace of the wrapped
* throwable if one is specified.
*
* Intended to be used anytime you'd
* report an exception with System.out.println: that is,
* for debugging and non-user-visible exceptions.
*
* @author michael@mpowers.net
* @author $Author: cgruber $
* @version $Revision: 893 $
*/
public class WotonomyException extends RuntimeException
{
protected String message;
protected Throwable wrappedThrowable;
/**
* Default constructor.
*/
public WotonomyException()
{
super();
message = null;
wrappedThrowable = null;
}
/**
* Standard constructor with message.
*/
public WotonomyException( String aMessage )
{
super( aMessage );
message = aMessage;
wrappedThrowable = null;
}
/**
* Specifies a throwable to wrap.
*/
public WotonomyException( Throwable aThrowable )
{
super();
message = null;
wrappedThrowable = aThrowable;
}
/**
* Specifies a message and a throwable to wrap.
*/
public WotonomyException( String aMessage, Throwable aThrowable )
{
super( aMessage );
message = aMessage;
wrappedThrowable = aThrowable;
}
/**
* Returns the wrapped throwable.
*/
public Throwable getWrappedThrowable()
{
return wrappedThrowable;
}
public void printStackTrace(PrintWriter s)
{
if ( message != null )
{
s.println( "Exception: " + message );
}
if ( wrappedThrowable != null )
{
wrappedThrowable.printStackTrace( s );
return;
}
super.printStackTrace( s );
}
public void printStackTrace(PrintStream s)
{
if ( message != null )
{
s.println( "Exception: " + message );
}
if ( wrappedThrowable != null )
{
wrappedThrowable.printStackTrace( s );
return;
}
super.printStackTrace( s );
}
public void printStackTrace()
{
if ( message != null )
{
System.err.println( "Exception: " + message );
}
if ( wrappedThrowable != null )
{
wrappedThrowable.printStackTrace();
return;
}
super.printStackTrace();
}
}
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