Mercurial > jhg

annotate src/org/tmatesoft/hg/util/FileWalker.java @ 217:e39cf474ef94

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Experimental support to mix-in start and end events for inspectors. Additionally, Lifecycle may serve as iteration control
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 17 May 2011 03:40:52 +0200
parents 8248aae33f7d
children 26ad7827a62d
rev   line source
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
2 * Copyright (c) 2011 TMate Software Ltd
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
3 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
4 * This program is free software; you can redistribute it and/or modify
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
5 * it under the terms of the GNU General Public License as published by
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
6 * the Free Software Foundation; version 2 of the License.
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
7 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
8 * This program is distributed in the hope that it will be useful,
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
11 * GNU General Public License for more details.
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
12 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
13 * For information on how to redistribute this software under
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
14 * the terms of a license other than GNU General Public License
102
a3a2e5deb320 Updated contact address to support@hg4j.com
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
15 * contact TMate Software at support@hg4j.com
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
17 package org.tmatesoft.hg.util;
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
19 import java.io.File;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20 import java.util.LinkedList;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 import java.util.NoSuchElementException;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 /**
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
24 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
25 * @author Artem Tikhomirov
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
26 * @author TMate Software Ltd.
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 */
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
28 public class FileWalker implements FileIterator {
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 private final File startDir;
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
31 private final Path.Source pathHelper;
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 private final LinkedList<File> dirQueue;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 private final LinkedList<File> fileQueue;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 private File nextFile;
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
35 private Path nextPath;
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
37 public FileWalker(File dir, Path.Source pathFactory) {
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
38 startDir = dir;
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
39 pathHelper = pathFactory;
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 dirQueue = new LinkedList<File>();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 fileQueue = new LinkedList<File>();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 reset();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 public void reset() {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 fileQueue.clear();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 dirQueue.clear();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 dirQueue.add(startDir);
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 nextFile = null;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50 nextPath = null;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 public boolean hasNext() {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 return fill();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 public void next() {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 if (!fill()) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59 throw new NoSuchElementException();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 nextFile = fileQueue.removeFirst();
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
62 nextPath = pathHelper.path(nextFile.getPath());
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 139
diff changeset
65 public Path name() {
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 return nextPath;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
68
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
69 public File file() {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
70 return nextFile;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
71 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
72
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
73 private File[] listFiles(File f) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
74 // in case we need to solve os-related file issues (mac with some encodings?)
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
75 return f.listFiles();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
76 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
77
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
78 // return true when fill added any elements to fileQueue.
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 private boolean fill() {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 while (fileQueue.isEmpty()) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81 if (dirQueue.isEmpty()) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
82 return false;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
84 while (!dirQueue.isEmpty()) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
85 File dir = dirQueue.removeFirst();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
86 for (File f : listFiles(dir)) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
87 if (f.isDirectory()) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
88 if (!".hg".equals(f.getName())) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
89 dirQueue.addLast(f);
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
90 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
91 } else {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
92 fileQueue.addLast(f);
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
93 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
94 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
95 break;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
96 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
97 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
98 return !fileQueue.isEmpty();
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
99 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
100 }