InitializationException.java

/*
 * Copyright(c) 2002 Center for E-Commerce Infrastructure Development, The
 * University of Hong Kong (HKU). All Rights Reserved.
 *
 * This software is licensed under the Academic Free License Version 1.0
 *
 * Academic Free License
 * Version 1.0
 *
 * This Academic Free License applies to any software and associated 
 * documentation (the "Software") whose owner (the "Licensor") has placed the 
 * statement "Licensed under the Academic Free License Version 1.0" immediately 
 * after the copyright notice that applies to the Software. 
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of the Software (1) to use, copy, modify, merge, publish, perform, 
 * distribute, sublicense, and/or sell copies of the Software, and to permit 
 * persons to whom the Software is furnished to do so, and (2) under patent 
 * claims owned or controlled by the Licensor that are embodied in the Software 
 * as furnished by the Licensor, to make, use, sell and offer for sale the 
 * Software and derivative works thereof, subject to the following conditions: 
 *
 * - Redistributions of the Software in source code form must retain all 
 *   copyright notices in the Software as furnished by the Licensor, this list 
 *   of conditions, and the following disclaimers. 
 * - Redistributions of the Software in executable form must reproduce all 
 *   copyright notices in the Software as furnished by the Licensor, this list 
 *   of conditions, and the following disclaimers in the documentation and/or 
 *   other materials provided with the distribution. 
 * - Neither the names of Licensor, nor the names of any contributors to the 
 *   Software, nor any of their trademarks or service marks, may be used to 
 *   endorse or promote products derived from this Software without express 
 *   prior written permission of the Licensor. 
 *
 * DISCLAIMERS: LICENSOR WARRANTS THAT THE COPYRIGHT IN AND TO THE SOFTWARE IS 
 * OWNED BY THE LICENSOR OR THAT THE SOFTWARE IS DISTRIBUTED BY LICENSOR UNDER 
 * A VALID CURRENT LICENSE. EXCEPT AS EXPRESSLY STATED IN THE IMMEDIATELY 
 * PRECEDING SENTENCE, THE SOFTWARE IS PROVIDED BY THE LICENSOR, CONTRIBUTORS 
 * AND COPYRIGHT OWNERS "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
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 * LICENSOR, CONTRIBUTORS OR COPYRIGHT OWNERS BE LIABLE FOR ANY CLAIM, DAMAGES 
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 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE. 
 *
 * This license is Copyright (C) 2002 Lawrence E. Rosen. All rights reserved. 
 * Permission is hereby granted to copy and distribute this license without 
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 */

/* ===== 
 *
 * $Header: /home/cvsroot/ebxml-pkg/src/hk/hku/cecid/ebms/pkg/pki/InitializationException.java,v 1.1 2005/07/28 09:36:24 dcmsze Exp $
 *
 * Code authored by:
 *
 * kcyee [2002-04-30]
 *
 * Code reviewed by:
 *
 * username [YYYY-MM-DD]
 *
 * Remarks:
 *
 * =====
 */

package hk.hku.cecid.ebms.pkg.pki;

/**
 * Exception class representing the error during initialization.
 *
 * @author kcyee
 * @version $Revision: 1.1 $
 */
public class InitializationException extends Exception {
    
    private Exception nestedException;
    
    /**
     * Construtor with message.
     *
     * @param msg the message of the exception
     */
    public InitializationException(String msg) {
        super(msg);
    }

    /**
    Instantiate the exception with a nested exception
    @param msg the message of the exception
    @param e the exception to be wrapped
    */
    public InitializationException(String msg, Exception e) {
        super(msg);
        nestedException = e;
    }

    /**
    @return the nested exception
    */
    public Exception getNestedException() {
        return nestedException;
    }

    
    /**
    It overrides the getMessage() method so it also reports the nested exception
    , if it exists.
    @return the exception message.
    */
    public String getMessage() {
        if (nestedException == null) {
            return super.getMessage();
        }
        else {
            return super.getMessage() + ". The nested Exception is " + 
            nestedException.toString(); 
        }
    }    
}