Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgCallbackTargetException.java @ 306:971baa95fb07

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Experimental code to build file history, handy access to changeset added
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 22 Sep 2011 04:05:41 +0200
parents 6d1804fe0ed7
children 678e326fd27c
rev   line source
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2011 TMate Software Ltd
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.core;
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
275
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
19 import org.tmatesoft.hg.util.Path;
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20
275
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
21
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 /**
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 * Checked exception that indicates errors in client code and tries to supply extra information about the context it occured in.
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 *
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 * @author Artem Tikhomirov
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 * @author TMate Software Ltd.
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 */
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29 @SuppressWarnings("serial")
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 public class HgCallbackTargetException extends HgException {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 /**
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 * @param cause can't be <code>null</code>
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 */
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 public HgCallbackTargetException(Throwable cause) {
216
c251bbc979cf Use correct super cons to allow explicit initCause
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
35 super((String) null);
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36 if (cause == null) {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 throw new IllegalArgumentException();
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 if (cause.getClass() == Wrap.class) {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 // eliminate wrapper
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 initCause(cause.getCause());
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 } else {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 initCause(cause);
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 @SuppressWarnings("unchecked")
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 public <T extends Exception> T getTargetException() {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 return (T) getCause();
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 /**
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 * Despite this exception is merely a way to give users access to their own exceptions, it may still supply
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 * valuable debugging information about what led to the error.
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 */
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 @Override
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 public String getMessage() {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 StringBuilder sb = new StringBuilder();
275
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
59 appendDetails(sb);
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 return sb.toString();
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
62
275
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
63 @Override
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
64 public HgCallbackTargetException setRevision(Nodeid r) {
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
65 return (HgCallbackTargetException) super.setRevision(r);
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
66 }
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
67 @Override
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
68 public HgCallbackTargetException setRevisionNumber(int rev) {
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
69 return (HgCallbackTargetException) super.setRevisionNumber(rev);
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
70 }
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
71 @Override
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
72 public HgCallbackTargetException setFileName(Path name) {
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
73 return (HgCallbackTargetException) super.setFileName(name);
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
74 }
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 216
diff changeset
75
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
76 /**
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
77 * Given the approach high-level handlers throw RuntimeExceptions to indicate errors, and
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
78 * a need to throw reasonable checked exception from client code, clients may utilize this class
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 * to get their checked exceptions unwrapped by {@link HgCallbackTargetException} and serve as that
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 * exception cause, eliminating {@link RuntimeException} mediator.
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81 */
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
82 public static final class Wrap extends RuntimeException {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
84 public Wrap(Throwable cause) {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
85 super(cause);
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
86 if (cause == null) {
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
87 throw new IllegalArgumentException();
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
88 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
89 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
90 }
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
91 }