2 * Copyright (C) 2001-2006 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * and distribute linked combinations including the two. You must obey the
23 * GNU General Public License in all respects for all of the code used other than
24 * the above mentioned libraries. If you modify this file, you may extend this
25 * exception to your version of the file, but you are not obligated to do so.
26 * If you do not wish to do so, delete this exception statement from your version.
29 package mir.changetracker;
31 import java.util.ArrayList;
32 import java.util.Iterator;
33 import java.util.List;
34 import java.util.Arrays;
37 * Change tracker, tracks changes to a path based repository.
38 * All methods are thread-safe
41 public class ChangeTracker {
44 public ChangeTracker() {
45 changes = new ArrayList();
49 * Adds a single change
51 public void addChange(String aPath) {
52 synchronized (changes) {
58 * Adds an array of changes
60 public void addChanges(String[] aPaths) {
61 addChanges(Arrays.asList(aPaths));
65 * Adds a <code>List</code> of changes
67 public void addChanges(List aChanges) {
68 synchronized (changes) {
69 changes.addAll(aChanges);
74 * Returns changes within a base path, and removes them from the
77 public List flushChanges(String aBasePath) {
78 return flushChanges(aBasePath, new String[0]);
82 * Returns changes within a base path, and removes them from the
85 public List flushChanges(String aBasePath, String[] anExcludedPaths) {
86 synchronized (changes) {
87 List result = getChanges(aBasePath, anExcludedPaths);
96 * Removes changes from the tracker
98 public void clearChanges(List aChanges) {
99 synchronized (changes) {
100 changes.removeAll(aChanges);
105 * Returns all changes within a base path
107 public List getChanges(String aBasePath) {
108 synchronized (changes) {
109 List result = new ArrayList();
111 Iterator i = changes.iterator();
112 while (i.hasNext()) {
113 String change = (String) i.next();
114 if (change.startsWith(aBasePath))
123 * gets all changes within a base path, but excluding some other paths
125 public List getChanges(String aBasePath, String[] anExcludingPaths) {
126 synchronized (changes) {
127 List result = getChanges(aBasePath);
129 for (int i=0; i<anExcludingPaths.length && result.size()>0; i++) {
130 List remove = new ArrayList();
131 Iterator j = result.iterator();
132 while (j.hasNext()) {
133 String item = (String) j.next();
134 if (item.startsWith(anExcludingPaths[i])) {
138 result.removeAll(remove);