Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
RethrowableRuntimeException |
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1 | /* | |
2 | * RethrowableException.java -- class for wrapping exceptions | |
3 | * Copyright (C) 1999 Quiotix Corporation. | |
4 | * All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are | |
8 | * met: | |
9 | * | |
10 | * Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * | |
13 | * Neither name of Quiotix Corporation nor the names of its | |
14 | * contributors may be used to endorse or promote products derived from | |
15 | * this software without specific prior written permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
18 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
20 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
21 | * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
22 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
23 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28 | */ | |
29 | ||
30 | package org.webmacro; | |
31 | ||
32 | /** | |
33 | * RethrowableRuntimeException | |
34 | * | |
35 | * A standard exception, inherited from RuntimeException, which also | |
36 | * includes a constructor of the form Exception(String, Exception) | |
37 | * which allows one exception to wrap another without throwing away | |
38 | * useful debugging information. The PrintStackTrace routine will | |
39 | * print the stack trace for both the original exception and the point | |
40 | * at which the exception was rethrown. | |
41 | * | |
42 | * @author Brian Goetz (Quiotix Corp) | |
43 | * @since 0.96 */ | |
44 | public class RethrowableRuntimeException extends RuntimeException | |
45 | { | |
46 | ||
47 | private static final long serialVersionUID = 1L; | |
48 | ||
49 | private Throwable cause; | |
50 | ||
51 | private final static String RETHROW_MESSAGE = "-- secondary stack trace --"; | |
52 | ||
53 | public RethrowableRuntimeException () | |
54 | { | |
55 | 0 | super(); |
56 | 0 | } |
57 | ||
58 | public RethrowableRuntimeException (String s) | |
59 | { | |
60 | 0 | super(s); |
61 | 0 | } |
62 | ||
63 | public RethrowableRuntimeException (String s, Throwable e) | |
64 | { | |
65 | 0 | super(s + System.getProperty("line.separator") + e); |
66 | 0 | cause = e; |
67 | 0 | while (cause instanceof RethrowableRuntimeException) |
68 | { | |
69 | 0 | cause = ((RethrowableRuntimeException) cause).cause; |
70 | } | |
71 | 0 | } |
72 | ||
73 | public void printStackTrace () | |
74 | { | |
75 | 0 | super.printStackTrace(); |
76 | 0 | if (cause != null) |
77 | { | |
78 | 0 | System.err.println(RETHROW_MESSAGE); |
79 | 0 | cause.printStackTrace(); |
80 | } | |
81 | 0 | } |
82 | ||
83 | public void printStackTrace (java.io.PrintStream ps) | |
84 | { | |
85 | 0 | super.printStackTrace(ps); |
86 | 0 | if (cause != null) |
87 | { | |
88 | 0 | ps.println(RETHROW_MESSAGE); |
89 | 0 | cause.printStackTrace(ps); |
90 | } | |
91 | 0 | } |
92 | ||
93 | public void printStackTrace (java.io.PrintWriter pw) | |
94 | { | |
95 | 0 | super.printStackTrace(pw); |
96 | 0 | if (cause != null) |
97 | { | |
98 | 0 | pw.println(RETHROW_MESSAGE); |
99 | 0 | cause.printStackTrace(pw); |
100 | } | |
101 | 0 | } |
102 | ||
103 | /** | |
104 | * allow access to underlying exception | |
105 | * @deprecated you should use <code>getCause</code> instead | |
106 | */ | |
107 | public Throwable getCaught () | |
108 | { | |
109 | 0 | return getCause(); |
110 | } | |
111 | ||
112 | /** | |
113 | * Return the underlying exception provided at construction time | |
114 | * or null if none was provided. | |
115 | * @return underlying cause | |
116 | * @since 1.1 | |
117 | */ | |
118 | public Throwable getCause () | |
119 | { | |
120 | 0 | return cause; |
121 | } | |
122 | ||
123 | /** | |
124 | * Return the original exception cause. This will recursively | |
125 | * extract the cause if cause is a subclass of | |
126 | * <code>RethrowableException</code>. | |
127 | * @return underlying root cause | |
128 | * @since 1.1 | |
129 | */ | |
130 | public Throwable getRootCause () | |
131 | { | |
132 | 0 | Throwable t = cause; |
133 | 0 | while (t != null && t instanceof RethrowableRuntimeException) |
134 | { | |
135 | 0 | t = ((RethrowableRuntimeException) t).cause; |
136 | } | |
137 | 0 | return t; |
138 | } | |
139 | } |