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.ui.properties;
39
40 import java.util.Enumeration;
41 import java.util.Hashtable;
42 import java.util.Locale;
43 import java.util.PropertyResourceBundle;
44 import java.util.ResourceBundle;
45 import java.util.logging.Logger;
46
47 /**
48 * The FFXLocale class will encapsulate internationalization features.
49 *
50 * @author Michael J. Schnieders
51 * @since 1.0
52 */
53 public class FFXLocale {
54
55 private static final Logger logger = Logger.getLogger(FFXLocale.class.getName());
56 private Locale currentLocale;
57 private PropertyResourceBundle ffxLabels;
58 private Hashtable<String, String> reverseLookUp = new Hashtable<String, String>();
59
60 /** Constructor for FFXLocale. */
61 public FFXLocale() {
62 currentLocale = Locale.getDefault();
63 ffxLabels =
64 (PropertyResourceBundle)
65 ResourceBundle.getBundle("ffx.ui.properties.StringBundle", currentLocale);
66 loadHashtable();
67 }
68
69 /**
70 * Constructor for FFXLocale.
71 *
72 * @param language a {@link java.lang.String} object.
73 * @param country a {@link java.lang.String} object.
74 */
75 public FFXLocale(String language, String country) {
76 setLocale(language, country);
77 }
78
79 /**
80 * getKey
81 *
82 * @param string a {@link java.lang.String} object.
83 * @return a {@link java.lang.String} object.
84 */
85 public String getKey(String string) {
86 return reverseLookUp.get(string);
87 }
88
89 /**
90 * getValue
91 *
92 * @param key a {@link java.lang.String} object.
93 * @return a {@link java.lang.String} object.
94 */
95 public String getValue(String key) {
96 return ffxLabels.getString(key).trim();
97 }
98
99 /** list */
100 public void list() {
101 for (String value : reverseLookUp.keySet()) {
102 String key = reverseLookUp.get(value);
103 logger.info("key = " + key + ", " + "value = " + value);
104 }
105 }
106
107 /**
108 * setLocale
109 *
110 * @param language a {@link java.lang.String} object.
111 * @param country a {@link java.lang.String} object.
112 * @return a boolean.
113 */
114 public boolean setLocale(String language, String country) {
115 Locale locale = Locale.of(language, country);
116 try {
117 ffxLabels =
118 (PropertyResourceBundle)
119 ResourceBundle.getBundle("ffx.ui.properties.StringBundle", locale);
120 } catch (Exception ex) {
121 Logger.getLogger("ffx").severe("" + ex);
122 return false;
123 }
124 loadHashtable();
125 currentLocale = locale;
126 return true;
127 }
128
129 private void loadHashtable() {
130 reverseLookUp.clear();
131 Enumeration<String> e = ffxLabels.getKeys();
132 while (e.hasMoreElements()) {
133 String key = e.nextElement();
134 String value = getValue(key);
135 reverseLookUp.put(value, key);
136 }
137 }
138 }