/[schmitzm]/trunk/src/skrueger/i8n/I8NUtil.java
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trunk/src/skrueger/i8n/I8NUtil.java revision 41 by alfonx, Mon Apr 6 19:54:46 2009 UTC branches/1.0-gt2-2.6/src/skrueger/i8n/I8NUtil.java revision 315 by mojays, Wed Aug 26 11:03:27 2009 UTC
# Line 1  Line 1 
1    /*******************************************************************************
2     * Copyright (c) 2009 Martin O. J. Schmitz.
3     *
4     * This file is part of the SCHMITZM library - a collection of utility
5     * classes based on Java 1.6, focusing (not only) on Java Swing
6     * and the Geotools library.
7     *
8     * The SCHMITZM project is hosted at:
9     * http://wald.intevation.org/projects/schmitzm/
10     *
11     * This program is free software; you can redistribute it and/or
12     * modify it under the terms of the GNU Lesser General Public License
13     * as published by the Free Software Foundation; either version 3
14     * of the License, or (at your option) any later version.
15     *
16     * This program is distributed in the hope that it will be useful,
17     * but WITHOUT ANY WARRANTY; without even the implied warranty of
18     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19     * GNU General Public License for more details.
20     *
21     * You should have received a copy of the GNU Lesser General Public License (license.txt)
22     * along with this program; if not, write to the Free Software
23     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
24     * or try this link: http://www.gnu.org/licenses/lgpl.html
25     *
26     * Contributors:
27     *     Martin O. J. Schmitz - initial API and implementation
28     *     Stefan A. Krüger - additional utility classes
29     ******************************************************************************/
30  package skrueger.i8n;  package skrueger.i8n;
31    
32  import java.util.Locale;  import java.util.Locale;
33  import java.util.Set;  import java.util.Set;
34  import java.util.TreeSet;  import java.util.TreeSet;
35    
36    import org.apache.log4j.Logger;
37    
38  public class I8NUtil {  public class I8NUtil {
39            static final Logger LOGGER = Logger.getLogger(I8NUtil.class);
40    
41          private static Set<String> languageCodes = new TreeSet<String>();          private static Set<String> languageCodes = new TreeSet<String>();
42          static {          static {
# Line 16  public class I8NUtil { Line 48  public class I8NUtil {
48                  // }                  // }
49          }          }
50    
51          //                /**
52          // /**           * Creates a {@link Translation}<br/>
53          // * @Returns an ImageIcon for a given ISO code or null.           * <p>
54          // * @param code ISO Country Code           * <li>If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set.
55          // */           * <li>If format can't be recognized, the {@link String} is interpreted as
56          // public static ImageIcon getFlagIcon(String code) {           * the translation in the <code>{@value #DEFAULT_KEY}</code> language
57          //                         *
58          // String ressourcename = "resource/flags/" + code.toUpperCase() + ".gif";           * @author Stefan Alfons Krüger
59          //                         */
60          // URL resourceURL = TranslationEditJPanel.class.getResource(ressourcename);          public static Translation createFromOneLIne(final String oneLineCoded) {
61          //                                Translation result = new Translation();
62          // if (resourceURL != null)                  result.fromOneLine(oneLineCoded);
63          // return new ImageIcon( resourceURL);                  return result;
64          //                        }
65          // return new ImageIcon();  
66          // }          /**
67          //                 * Returns the Translation to a String of the Format: "de{Baum}en{tree}" <br/>
68          // /**           *
69          // * @Returns an {@link ImageIcon} flag for the language setup as           *
70          // Translation language           * @author Stefan Alfons Krüger
71          // */           */
72          // public static ImageIcon getFlagIcon() {          public static String toOneLine(Translation source) {
73          // return getFlagIcon( Translation.getActiveLang() );                  StringBuffer oneLine = new StringBuffer();
74          // }                  for (String key : source.keySet()) {
75                            oneLine.append(key + "{" + source.get(key) + "}");
76                    }
77                    return oneLine.toString();
78            }
79    
80          /**          /**
81           * @author Stefan Alfons Krüger           * @author Stefan Alfons Krüger
# Line 66  public class I8NUtil { Line 102  public class I8NUtil {
102           */           */
103          public static Locale getLocaleFor(String code) {          public static Locale getLocaleFor(String code) {
104                  for (Locale l : Locale.getAvailableLocales()) {                  for (Locale l : Locale.getAvailableLocales()) {
105  //                      System.out.println(l.getLanguage()+" not = "+code);                          if (l.getLanguage().equals(code.toLowerCase())) {
                         if (l.getLanguage().toLowerCase().equals(code.toLowerCase())) {  
106                                  return l;                                  return l;
107                          }                          }
108                            // LOGGER.debug(l.getLanguage() + " not = " + code);
109                  }                  }
110                  return null;  
111                    LOGGER.error("Can't create a Locale for code " + code
112                                    + "! Returning the system default locale to avoid NPEs.");
113    
114                    return Locale.getDefault();
115            }
116    
117            /**
118             * A convenience method that checks if the {@link Translation} object
119             * contains a translation for the active language. A {@link String}
120             * containing only spaces will return <code>false</code>.
121             *
122             * @param trans
123             *            {@link Translation} to check.
124             */
125            public static boolean isEmpty(final Translation trans) {
126                    if (trans == null)
127                            return true;
128                    return isEmpty(trans.toString());
129            }
130    
131            /**
132             * A convenience method that checks if the {@link String} returned by from a
133             * {@link Translation} object contains a "valid" translation for the active
134             * language. A {@link String} containing only spaces or equals
135             * {@link Translation}.NO_TRANSLATION will return <code>false</code>.
136             *
137             * @param transString
138             *            {@link String} to check.
139             */
140            public static boolean isEmpty(final String transString) {
141                    if (transString == null)
142                            return true;
143                    if (transString.trim().isEmpty())
144                            return true;
145                    if (transString.equals(Translation.NO_TRANSLATION))
146                            return true;
147                    return false;
148          }          }
149  }  }
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