1 // ******************************************************************************
2 //
3 // Title: Force Field X.
4 // Description: Force Field X - Software for Molecular Biophysics.
5 // Copyright: Copyright (c) Michael J. Schnieders 2001-2025.
6 //
7 // This file is part of Force Field X.
8 //
9 // Force Field X is free software; you can redistribute it and/or modify it
10 // under the terms of the GNU General Public License version 3 as published by
11 // the Free Software Foundation.
12 //
13 // Force Field X is distributed in the hope that it will be useful, but WITHOUT
14 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 // FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
16 // details.
17 //
18 // You should have received a copy of the GNU General Public License along with
19 // Force Field X; if not, write to the Free Software Foundation, Inc., 59 Temple
20 // Place, Suite 330, Boston, MA 02111-1307 USA
21 //
22 // Linking this library statically or dynamically with other modules is making a
23 // combined work based on this library. Thus, the terms and conditions of the
24 // GNU General Public License cover the whole combination.
25 //
26 // As a special exception, the copyright holders of this library give you
27 // permission to link this library with independent modules to produce an
28 // executable, regardless of the license terms of these independent modules, and
29 // to copy and distribute the resulting executable under terms of your choice,
30 // provided that you also meet, for each linked independent module, the terms
31 // and conditions of the license of that module. An independent module is a
32 // module which is not derived from or based on this library. If you modify this
33 // library, you may extend this exception to your version of the library, but
34 // you are not obligated to do so. If you do not wish to do so, delete this
35 // exception statement from your version.
36 //
37 // ******************************************************************************
38 package ffx.potential.parsers;
39
40 import org.apache.commons.io.FilenameUtils;
41
42 import javax.swing.filechooser.FileFilter;
43 import java.io.File;
44
45 /**
46 * The DYNFileFilter class is used to choose a TINKER Restart (*.DYN) file.
47 *
48 * @author Michael J. Schnieders
49 * @since 1.0
50 */
51 public final class DYNFileFilter extends FileFilter {
52
53 /** Default Constructor. */
54 public DYNFileFilter() {
55 }
56
57 /**
58 * This is a static version of the accept method.
59 *
60 * <p>This method return <code>true</code> if the file is a directory or TINKER Restart file
61 * (*.DYN).
62 *
63 * @param file The File to examine.
64 * @return Returns true if this an DYN file.
65 */
66 public static boolean isDYN(File file) {
67 return new DYNFileFilter().accept(file);
68 }
69
70 /**
71 * {@inheritDoc}
72 *
73 * <p>This method return <code>true</code> if the file is a directory or TINKER Restart file
74 * (*.DYN).
75 */
76 @Override
77 public boolean accept(File file) {
78 if (file.isDirectory()) {
79 return true;
80 }
81 String ext = FilenameUtils.getExtension(file.getName());
82 return ext.toUpperCase().startsWith("DYN");
83 }
84
85 /**
86 * {@inheritDoc}
87 *
88 * <p>Provides a description of this DYNFileFilter.
89 */
90 @Override
91 public String getDescription() {
92 return "TINKER Restart (*.DYN)";
93 }
94 }