01: /*
02: * This file is part of DrFTPD, Distributed FTP Daemon.
03: *
04: * DrFTPD is free software; you can redistribute it and/or modify
05: * it under the terms of the GNU General Public License as published by
06: * the Free Software Foundation; either version 2 of the License, or
07: * (at your option) any later version.
08: *
09: * DrFTPD is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12: * GNU General Public License for more details.
13: *
14: * You should have received a copy of the GNU General Public License
15: * along with DrFTPD; if not, write to the Free Software
16: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17: */
18: package org.drftpd.remotefile;
19:
20: import java.util.Comparator;
21:
22: /**
23: * @author zubov
24: * @version $Id$
25: */
26: public class TimeComparator implements
27: Comparator<LinkedRemoteFileInterface> {
28:
29: /**
30: * Sorts LinkedRemoteFileInterface objects by their date modified
31: */
32: public TimeComparator() {
33:
34: }
35:
36: public int compare(LinkedRemoteFileInterface arg0,
37: LinkedRemoteFileInterface arg1) {
38: if (arg0 == null || arg1 == null) {
39: throw new IllegalArgumentException(
40: "Neither arg0 nor arg1 can be null");
41: }
42: return Long.signum(arg1.lastModified() - arg0.lastModified());
43: }
44:
45: }
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