01: /*
02: * hgcommons 7
03: * Hammurapi Group Common Library
04: * Copyright (C) 2003 Hammurapi Group
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Lesser General Public
08: * License as published by the Free Software Foundation; either
09: * version 2 of the License, or (at your option) any later version.
10: *
11: * This program is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with this library; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: *
20: * URL: http://www.hammurapi.biz/hammurapi-biz/ef/xmenu/hammurapi-group/products/products/hgcommons/index.html
21: * e-Mail: support@hammurapi.biz
22: */
23: package biz.hammurapi;
24:
25: /**
26: * This exception adds "root cause" throwable class and message to its message
27: * @author Pavel Vlasov
28: * @version $Revision: 1.2 $
29: */
30: public class Exception extends java.lang.Exception {
31:
32: /**
33: * Comment for <code>serialVersionUID</code>
34: */
35: private static final long serialVersionUID = 9056009202942745656L;
36:
37: public Exception() {
38: super ();
39: }
40:
41: public Exception(String message) {
42: super (message);
43: }
44:
45: public Exception(String message, Throwable cause) {
46: // TODO Switch to select 1.3 or 1.4
47: super (message + rootCause(cause), cause);
48: }
49:
50: public Exception(Throwable cause) {
51: // TODO Switch to select 1.3 or 1.4
52: super (rootCause(cause), cause);
53: }
54:
55: static String rootCause(Throwable cause) {
56: while (cause != null && cause.getCause() != null
57: && cause != cause.getCause()) {
58: cause = cause.getCause();
59: }
60: return cause == null ? "" : "\nRoot cause: " + cause.toString();
61: }
62: }
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