Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/FileChangeMonitor.java @ 704:7743a9c10bfa

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge command introduced
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 14 Aug 2013 20:07:26 +0200
parents 5c68567b3645
children
rev   line source
610
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2013 TMate Software Ltd
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
19 import java.io.File;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 /**
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22 * This shall become interface/abstract class accessible from SessionContext,
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 * with plugable implementations, e.g. Java7 (file monitoring facilities) based,
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 * or any other convenient means. It shall allow both "check at the moment asked"
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 * and "collect changes and dispatch on demand" implementation approaches, so that
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 * implementors may use best available technology
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 *
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 * @author Artem Tikhomirov
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29 * @author TMate Software Ltd.
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 */
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 public class FileChangeMonitor {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 private final File file;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 private long lastModified;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 private long length;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
35
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36 /**
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 * First round: support for 1-monitor-1-file only
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 * Next round: 1-monitor-N files
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 */
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 public FileChangeMonitor(File f) {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 file = f;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 }
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 // shall work for files that do not exist
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 public void touch(Object source) {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 lastModified = file.lastModified();
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 length = file.length();
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 }
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50 public void check(Object source, Action onChange) {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51 if (changed(source)) {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 onChange.changed();
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 }
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 }
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 public boolean changed(Object source) {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 if (file.lastModified() != lastModified) {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 return true;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59 }
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 return file.length() != length;
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 }
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
62
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63 public interface Action {
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64 public void changed();
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 }
5c68567b3645 Refresh tags, branches, bookmarks and ignore when their files (or csets in the repo) are changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 }