001: /*
002: * $Id: DocumentException.java 2748 2007-05-12 15:11:48Z blowagie $
003: * $Name$
004: *
005: * Copyright 1999, 2000, 2001, 2002 by Bruno Lowagie.
006: *
007: * The contents of this file are subject to the Mozilla Public License Version 1.1
008: * (the "License"); you may not use this file except in compliance with the License.
009: * You may obtain a copy of the License at http://www.mozilla.org/MPL/
010: *
011: * Software distributed under the License is distributed on an "AS IS" basis,
012: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
013: * for the specific language governing rights and limitations under the License.
014: *
015: * The Original Code is 'iText, a free JAVA-PDF library'.
016: *
017: * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
018: * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
019: * All Rights Reserved.
020: * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
021: * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
022: *
023: * Contributor(s): all the names of the contributors are added in the source code
024: * where applicable.
025: *
026: * Alternatively, the contents of this file may be used under the terms of the
027: * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
028: * provisions of LGPL are applicable instead of those above. If you wish to
029: * allow use of your version of this file only under the terms of the LGPL
030: * License and not to allow others to use your version of this file under
031: * the MPL, indicate your decision by deleting the provisions above and
032: * replace them with the notice and other provisions required by the LGPL.
033: * If you do not delete the provisions above, a recipient may use your version
034: * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
035: *
036: * This library is free software; you can redistribute it and/or modify it
037: * under the terms of the MPL as stated above or under the terms of the GNU
038: * Library General Public License as published by the Free Software Foundation;
039: * either version 2 of the License, or any later version.
040: *
041: * This library is distributed in the hope that it will be useful, but WITHOUT
042: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
043: * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
044: * details.
045: *
046: * If you didn't download this code from the following link, you should check if
047: * you aren't using an obsolete version:
048: * http://www.lowagie.com/iText/
049: *
050: */
051:
052: package com.lowagie.text;
053:
054: /**
055: * Signals that an error has occurred in a <CODE>Document</CODE>.
056: *
057: * @see BadElementException
058: * @see Document
059: * @see DocWriter
060: * @see DocListener
061: */
062:
063: public class DocumentException extends Exception {
064: private static final long serialVersionUID = -2191131489390840739L;
065: private Exception ex;
066:
067: /**
068: * Creates a Document exception.
069: * @param ex an exception that has to be turned into a DocumentException
070: */
071: public DocumentException(Exception ex) {
072: this .ex = ex;
073: }
074:
075: // constructors
076:
077: /**
078: * Constructs a <CODE>DocumentException</CODE> whithout a message.
079: */
080: public DocumentException() {
081: super ();
082: }
083:
084: /**
085: * Constructs a <code>DocumentException</code> with a message.
086: *
087: * @param message a message describing the exception
088: */
089: public DocumentException(String message) {
090: super (message);
091: }
092:
093: /**
094: * We print the message of the checked exception
095: * @return the error message
096: */
097: public String getMessage() {
098: if (ex == null)
099: return super .getMessage();
100: else
101: return ex.getMessage();
102: }
103:
104: /**
105: * and make sure we also produce a localized version
106: * @return a localized message
107: */
108: public String getLocalizedMessage() {
109: if (ex == null)
110: return super .getLocalizedMessage();
111: else
112: return ex.getLocalizedMessage();
113: }
114:
115: /**
116: * The toString() is changed to be prefixed with ExceptionConverter
117: * @return the String version of the exception
118: */
119: public String toString() {
120: if (ex == null)
121: return super .toString();
122: else
123: return split(getClass().getName()) + ": " + ex;
124: }
125:
126: /** we have to override this as well */
127: public void printStackTrace() {
128: printStackTrace(System.err);
129: }
130:
131: /**
132: * here we prefix, with s.print(), not s.println(), the stack
133: * trace with "ExceptionConverter:"
134: * @param s a printstream object
135: */
136: public void printStackTrace(java.io.PrintStream s) {
137: if (ex == null)
138: super .printStackTrace(s);
139: else {
140: synchronized (s) {
141: s.print(split(getClass().getName()) + ": ");
142: ex.printStackTrace(s);
143: }
144: }
145: }
146:
147: /**
148: * Again, we prefix the stack trace with "ExceptionConverter:"
149: * @param s A PrintWriter object
150: */
151: public void printStackTrace(java.io.PrintWriter s) {
152: if (ex == null)
153: super .printStackTrace(s);
154: else {
155: synchronized (s) {
156: s.print(split(getClass().getName()) + ": ");
157: ex.printStackTrace(s);
158: }
159: }
160: }
161:
162: /**
163: * Removes everything in a String that comes before a '.'
164: * @param s the original string
165: * @return the part that comes after the dot
166: */
167: private static String split(String s) {
168: int i = s.lastIndexOf('.');
169: if (i < 0)
170: return s;
171: else
172: return s.substring(i + 1);
173: }
174: }
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