1 /*******************************************************************************
2 * Copyright (c) 2005, 2006, 2007 Imola Informatica.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the LGPL License v2.1
5 * which accompanies this distribution, and is available at
6 * http://www.gnu.org/licenses/lgpl.html
7 *******************************************************************************/
8 package it.imolinfo.jbi4ejb.exception;
9
10 import it.imolinfo.jbi4ejb.jbi.Messages;
11 import java.util.MissingResourceException;
12
13 /**
14 * The default exception used within the component.
15 *
16 * @author <a href="mailto:rspazzoli@imolinfo.it">Raffaele Spazzoli</a>
17 * @author <a href="mailto:acannone@imolinfo.it">Amedeo Cannone</a>
18 */
19 public class Jbi4EjbException extends Exception {
20
21 /**
22 * Serial Version UID.
23 */
24 private static final long serialVersionUID = 3762815969835563319L;
25
26 /**
27 * The localized description of this <code>Throwable</code>.
28 */
29 private String localizedMessage;
30
31 /**
32 * A constructor.
33 *
34 * @param message The message of the exception.
35 */
36 public Jbi4EjbException(final String message) {
37 this(message, null, null);
38 }
39
40 /**
41 * A constructor.
42 *
43 * @param message The message of the exception.
44 * @param cause The cause of the exception.
45 */
46 public Jbi4EjbException(final String message, final Throwable cause) {
47 this(message, null, cause);
48 }
49
50 /**
51 * A constructor.
52 *
53 * @param cause The cause of the exception.
54 */
55 public Jbi4EjbException(final Throwable cause) {
56 this(cause.toString(), null, cause);
57
58 // 'message' is computed from 'cause', so there is no need to I18N
59 localizedMessage = getMessage();
60 }
61
62 /**
63 * A constructor with i18n support.
64 *
65 * @param message The message of the exception.
66 * @param args The <code>MessageFormat</code> arguments.
67 */
68 public Jbi4EjbException(final String message, final Object[] args) {
69 this(message, args, null);
70 }
71
72 /**
73 * A constructor with i18n support.
74 *
75 * @param message The message of the exception.
76 * @param args The <code>MessageFormat</code> arguments.
77 * @param cause The cause of the exception.
78 */
79 public Jbi4EjbException(final String message, final Object[] args,
80 final Throwable cause) {
81 super(message, cause);
82 setupLocalizedMessage(args);
83 }
84
85 /**
86 * Calculates {@link #localizedMessage} value.
87 *
88 * @param args the optional arguments to define the complete message. It
89 * may be <code>null</code>.
90 */
91 private void setupLocalizedMessage(final Object[] args) {
92 StackTraceElement[] stackTrace = getStackTrace();
93
94 if (stackTrace.length == 0) {
95 localizedMessage = getMessage();
96 } else {
97 try {
98 Class clazz = Class.forName(stackTrace[0].getClassName());
99 Messages messages = Messages.getMessages(clazz);
100
101 localizedMessage = messages.getString(getMessage(), args);
102 } catch (ClassNotFoundException e) {
103 localizedMessage = getMessage();
104 } catch (MissingResourceException e) {
105 localizedMessage = getMessage();
106 }
107 }
108 }
109
110
111 /** {@inheritDoc} */
112 public String getLocalizedMessage() { // Overridden
113 return localizedMessage;
114 }
115
116
117 }