1 /*
2 * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available
6 * under the terms of the Eclipse Distribution License v1.0 which
7 * accompanies this distribution, is reproduced below, and is
8 * available at http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
23 *
24 * - Neither the name of the Eclipse Foundation, Inc. nor the
25 * names of its contributors may be used to endorse or promote
26 * products derived from this software without specific prior
27 * written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 package org.eclipse.jgit.errors;
45
46 import java.util.ArrayList;
47 import java.util.Collection;
48 import java.util.Collections;
49 import java.util.List;
50
51 import org.eclipse.jgit.internal.JGitText;
52
53 /** An exception detailing multiple reasons for failure. */
54 public class CompoundException extends Exception {
55 private static final long serialVersionUID = 1L;
56
57 private static String format(final Collection<Throwable> causes) {
58 final StringBuilder msg = new StringBuilder();
59 msg.append(JGitText.get().failureDueToOneOfTheFollowing);
60 for (final Throwable c : causes) {
61 msg.append(" "); //$NON-NLS-1$
62 msg.append(c.getMessage());
63 msg.append("\n"); //$NON-NLS-1$
64 }
65 return msg.toString();
66 }
67
68 private final List<Throwable> causeList;
69
70 /**
71 * Constructs an exception detailing many potential reasons for failure.
72 *
73 * @param why
74 * Two or more exceptions that may have been the problem.
75 */
76 public CompoundException(final Collection<Throwable> why) {
77 super(format(why));
78 causeList = Collections.unmodifiableList(new ArrayList<>(why));
79 }
80
81 /**
82 * Get the complete list of reasons why this failure happened.
83 *
84 * @return unmodifiable collection of all possible reasons.
85 */
86 public List<Throwable> getAllCauses() {
87 return causeList;
88 }
89 }