View Javadoc
1   // ******************************************************************************
2   //
3   // Title:       Force Field X.
4   // Description: Force Field X - Software for Molecular Biophysics.
5   // Copyright:   Copyright (c) Michael J. Schnieders 2001-2024.
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 ESVFileFilter class is used to choose a Extended System Restart (*.ESV) file.
47   *
48   * @author Andrew Thiel
49   * @since 1.0
50   */
51  public final class ESVFileFilter extends FileFilter {
52  
53    /** Default Constructor. */
54    public ESVFileFilter() {
55    }
56  
57    /**
58     * {@inheritDoc}
59     *
60     * <p>This method return <code>true</code> if the file is a directory or ExtendedSystem Variable
61     * Restart file
62     * (*.ESV).
63     */
64    @Override
65    public boolean accept(File file) {
66      if (file.isDirectory()) {
67        return true;
68      }
69      String ext = FilenameUtils.getExtension(file.getName());
70      return ext.toUpperCase().startsWith("ESV");
71    }
72  
73    /**
74     * {@inheritDoc}
75     *
76     * <p>Provides a description of this ESVFileFilter.
77     */
78    @Override
79    public String getDescription() {
80      return "ExtendedSystem Variable Restart (*.ESV)";
81    }
82  }