1 /*
2 * dpkg - Debian Package library and the Debian Package Maven plugin
3 * (c) Copyright 2016 Gerrit Hohl
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 */
19 package net.sourceforge.javadpkg.store;
20
21 import java.util.Comparator;
22
23 /**
24 * <p>
25 * A {@link Comparator} for {@link DataStoreNode}s residing in the same parent
26 * node.
27 * </p>
28 * <p>
29 * Directory nodes (see {@link DataStoreNode#isDirectory()} have a higher
30 * priority than file nodes (see {@link DataStoreNode#isFile()}). Nodes are
31 * compared by their names.
32 * </p>
33 *
34 * @author Gerrit Hohl (gerrit-hohl@users.sourceforge.net)
35 * @version <b>1.0</b>, 23.05.2016 by Gerrit Hohl
36 */
37 public class DataStoreNodeComparator implements Comparator<DataStoreNode> {
38
39
40 /**
41 * <p>
42 * Creates a comparator.
43 * </p>
44 */
45 public DataStoreNodeComparator() {
46 super();
47 }
48
49
50 @Override
51 public int compare(DataStoreNode o1, DataStoreNode o2) {
52 if (o1.isDirectory() && o2.isFile())
53 return -1;
54 else if (o1.isFile() && o2.isDirectory())
55 return 1;
56
57 return o1.getName().compareTo(o2.getName());
58 }
59
60
61 }