Mercurial > hg4j

annotate src/org/tmatesoft/hg/internal/IterateControlMediator.java @ 340:a54bfe0db959

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
IAE using stale data from branchheads file (invalid due to repository rollback)
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 17 Nov 2011 06:16:20 +0100
parents f9f3e9b67ccc
children 1ee452f31187
rev   line source
312
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2011 TMate Software Ltd
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
19 import org.tmatesoft.hg.internal.Lifecycle.Callback;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20 import org.tmatesoft.hg.util.CancelSupport;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 import org.tmatesoft.hg.util.CancelledException;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 /**
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 *
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 * @author Artem Tikhomirov
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 * @author TMate Software Ltd.
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 */
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 public class IterateControlMediator {
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 private final CancelSupport src;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 private Callback receiver;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 public IterateControlMediator(CancelSupport source, Lifecycle.Callback target) {
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 assert target != null;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
35 src = source;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36 receiver = target;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 }
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 public boolean checkCancelled() {
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 if (src == null) {
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 return false;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 }
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 try {
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 src.checkCancelled();
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 return false;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 } catch (CancelledException ex) {
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 receiver.stop();
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 return true;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 }
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50 }
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 public void stop() {
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 receiver.stop();
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 }
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 }