1 /*
2 * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * 3. The end-user documentation included with the redistribution, if any, must
13 * include the following acknowledgment:
14 *
15 * "This product includes software developed by Gargoyle Software Inc.
16 * (http://www.GargoyleSoftware.com/)."
17 *
18 * Alternately, this acknowledgment may appear in the software itself, if
19 * and wherever such third-party acknowledgments normally appear.
20 * 4. The name "Gargoyle Software" must not be used to endorse or promote
21 * products derived from this software without prior written permission.
22 * For written permission, please contact info@GargoyleSoftware.com.
23 * 5. Products derived from this software may not be called "GSBase", nor may
24 * "GSBase" appear in their name, without prior written permission of
25 * Gargoyle Software Inc.
26 *
27 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
28 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
29 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE
30 * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
31 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
33 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
36 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 */
38 package com.gargoylesoftware.base.resource;
39
40 import java.io.PrintStream;
41 import java.io.PrintWriter;
42
43 /***
44 * An exception that is thrown by ResourceManager
45 *
46 * @version $Revision: 1.5 $
47 * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
48 */
49 public class ResourceException extends RuntimeException {
50
51 private static final long serialVersionUID = 599093006370872479L;
52 private final Throwable enclosedException_;
53
54
55 /***
56 * Create an instance
57 *
58 * @param message The error message
59 */
60 public ResourceException( final String message ) {
61 super( message );
62 if( message == null ) {
63 throw new NullPointerException();
64 }
65 enclosedException_ = null;
66 }
67
68
69 /***
70 * Create an instance
71 *
72 * @param throwable the error that caused this exception
73 */
74 public ResourceException( final Throwable throwable ) {
75 super( throwable.getMessage() );
76 enclosedException_ = throwable;
77 }
78
79
80 /***
81 * Create an instance
82 */
83 protected ResourceException() {
84 enclosedException_ = null;
85 }
86
87
88 /***
89 * Return the enclosed exception
90 *
91 * @return The enclosed exception
92 */
93 public Throwable getEnclosedException() {
94 return enclosedException_;
95 }
96
97
98 /***
99 * Print the stack trace. If this exception contains another exception then
100 * the stack traces for both will be printed.
101 *
102 * @param writer Where the stack trace will be written
103 */
104 public void printStackTrace( final PrintWriter writer ) {
105 super.printStackTrace( writer );
106 if( enclosedException_ != null ) {
107 writer.write( "Enclosed exception: " );
108 enclosedException_.printStackTrace( writer );
109 }
110 }
111
112
113 /***
114 * Print the stack trace. If this exception contains another exception then
115 * the stack traces for both will be printed.
116 *
117 * @param stream Where the stack trace will be written
118 */
119 public void printStackTrace( final PrintStream stream ) {
120 super.printStackTrace( stream );
121 if( enclosedException_ != null ) {
122 stream.print( "Enclosed exception: " );
123 enclosedException_.printStackTrace( stream );
124 }
125 }
126 }
127