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/*
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* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @(#)MessagingException.java 1.10 02/06/13
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*/
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package com.sun.xml.internal.messaging.saaj.packaging.mime;
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/**
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* The base class for all exceptions thrown by the Messaging classes
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*
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* @author John Mani
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* @author Bill Shannon
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*/
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public class MessagingException extends Exception {
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/**
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* The next exception in the chain.
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*
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* @serial
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*/
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private Exception next;
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/**
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* Constructs a MessagingException with no detail message.
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*/
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public MessagingException() {
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super();
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}
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/**
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* Constructs a MessagingException with the specified detail message.
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* @param s the detail message
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*/
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public MessagingException(String s) {
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super(s);
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}
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/**
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* Constructs a MessagingException with the specified
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* Exception and detail message. The specified exception is chained
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* to this exception.
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* @param s the detail message
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* @param e the embedded exception
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* @see #getNextException
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* @see #setNextException
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*/
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public MessagingException(String s, Exception e) {
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super(s);
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next = e;
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}
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/**
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* Get the next exception chained to this one. If the
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* next exception is a MessagingException, the chain
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* may extend further.
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*
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* @return next Exception, null if none.
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*/
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public Exception getNextException() {
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return next;
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}
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/**
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* Add an exception to the end of the chain. If the end
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* is <strong>not</strong> a MessagingException, this
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* exception cannot be added to the end.
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*
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* @param ex the new end of the Exception chain
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* @return <code>true</code> if the this Exception
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* was added, <code>false</code> otherwise.
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*/
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public synchronized boolean setNextException(Exception ex) {
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Exception theEnd = this;
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while (theEnd instanceof MessagingException &&
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((MessagingException)theEnd).next != null) {
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theEnd = ((MessagingException)theEnd).next;
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}
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// If the end is a MessagingException, we can add this
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// exception to the chain.
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if (theEnd instanceof MessagingException) {
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((MessagingException)theEnd).next = ex;
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return true;
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} else
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return false;
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}
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/**
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* Produce the message, include the message from the nested
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* exception if there is one.
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*/
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public String getMessage() {
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if (next == null)
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return super.getMessage();
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Exception n = next;
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String s = super.getMessage();
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StringBuffer sb = new StringBuffer(s == null ? "" : s);
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while (n != null) {
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sb.append(";\n nested exception is:\n\t");
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if (n instanceof MessagingException) {
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MessagingException mex = (MessagingException)n;
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sb.append(n.getClass().toString());
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String msg = mex.getSuperMessage();
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if (msg != null) {
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sb.append(": ");
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sb.append(msg);
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}
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n = mex.next;
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} else {
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sb.append(n.toString());
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n = null;
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}
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}
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return sb.toString();
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}
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private String getSuperMessage() {
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return super.getMessage();
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}
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}
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