1 /***
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Exoffice Technologies. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Exoffice Technologies. Exolab is a registered
23 * trademark of Exoffice Technologies.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 2000 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: DatabaseFilter.java,v 1.2 2003/08/07 13:32:59 tanderson Exp $
44 *
45 * Date Author Changes
46 * $Date jimm Created
47 */
48
49
50 package org.exolab.jms.jndiadministration;
51
52 import java.io.File;
53
54 import javax.swing.filechooser.FileFilter;
55
56
57 /***
58 * A file filter used by the file chooser to resitrict displayed files
59 * to files with a ".db" suffix only.
60 *
61 * @version $Revision: 1.2 $ $Date: 2003/08/07 13:32:59 $
62 * @author <a href="mailto:mourikis@exolab.org">Jim Mourikis</a>
63 **/
64
65
66 public class DatabaseFilter extends FileFilter {
67
68 /***
69 * The default constructor does nothing.
70 *
71 */
72 public DatabaseFilter() {
73
74 }
75
76
77 /***
78 * All files in a directory are passed to this method to determine
79 * if they should be displayed.
80 * The method will allow the display of all directories and all files
81 * with the "*.db" suffix.
82 *
83 * @param f The file to be checked for display.
84 * @return boolean true if the file should be displayed.
85 *
86 */
87 public boolean accept(File f) {
88 boolean accept = f.isDirectory();
89
90 if (!accept) {
91 String suffix = getSuffix(f);
92
93 if (suffix != null) {
94 accept = suffix.equals("db");
95 }
96 }
97 return accept;
98 }
99
100 /***
101 * The file suffix to allow display.
102 *
103 * @return String The suffix of all files which can be displayed
104 *
105 */
106 public String getDescription() {
107 return "Database Files(*.db)";
108 }
109
110
111 /***
112 * Get the suffix of the given file. If the file has no suffix return null
113 *
114 * @param f The file to check.
115 * @return String the file suffix
116 *
117 */
118 public String getSuffix(File f) {
119 String s = f.getPath();
120 String suffix = null;
121
122 int i = s.lastIndexOf('.');
123 if (i > 0 && i < s.length() - 1) {
124 suffix = s.substring(i + 1).toLowerCase();
125 }
126 return suffix;
127 }
128
129
130 }