/[schmitzm]/trunk/src/skrueger/i8n/I8NUtil.java
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revision 142 by alfonx, Mon Jun 15 12:09:05 2009 UTC revision 1124 by alfonx, Thu Oct 14 20:58:06 2010 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. Tzeggai - additional utility classes
29     ******************************************************************************/
30  package skrueger.i8n;  package skrueger.i8n;
31    
32    import java.util.ArrayList;
33    import java.util.List;
34  import java.util.Locale;  import java.util.Locale;
35  import java.util.Set;  import java.util.Set;
36  import java.util.TreeSet;  import java.util.TreeSet;
# Line 11  public class I8NUtil { Line 42  public class I8NUtil {
42    
43          private static Set<String> languageCodes = new TreeSet<String>();          private static Set<String> languageCodes = new TreeSet<String>();
44          static {          static {
45                  for (Locale locale : java.util.Locale.getAvailableLocales()) {                  for (final Locale locale : java.util.Locale.getAvailableLocales()) {
46                          getLanguageCodes().add(locale.getLanguage());                          getLanguageCodes().add(locale.getLanguage());
47                  }                  }
48                  // for (String code : java.util.Locale.getISOLanguages()) {                  // for (String code : java.util.Locale.getISOLanguages()) {
# Line 20  public class I8NUtil { Line 51  public class I8NUtil {
51          }          }
52    
53          /**          /**
54           * @author Stefan Alfons Krüger           * Creates a {@link Translation}<br/>
55             * <p>
56             * <li>If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set.
57             * <li>If format can't be recognized, the {@link String} is interpreted as
58             * the translation in the <code>{@value #DEFAULT_KEY}</code> language
59             *
60             * @author Stefan Alfons Tzeggai
61             */
62            public static Translation createFromOneLine(final String oneLineCoded) {
63                    final Translation result = new Translation();
64                    result.fromOneLine(oneLineCoded);
65                    return result;
66            }
67    
68            /**
69             * Returns the Translation to a String of the Format: "de{Baum}en{tree}" <br/>
70             *
71             *
72             * @author Stefan Alfons Tzeggai
73             */
74            public static String toOneLine(final Translation source) {
75                    final StringBuffer oneLine = new StringBuffer();
76                    for (final String key : source.keySet()) {
77                            oneLine.append(key + "{" + source.get(key) + "}");
78                    }
79                    return oneLine.toString();
80            }
81    
82            /**
83             * @author Stefan Alfons Tzeggai
84           * @param code           * @param code
85           * @return true if the code paramter is a valid ISO Language code           * @return true if the code paramter is a valid ISO Language code
86           */           */
87          public static boolean isValidISOLangCode(String code) {          public static boolean isValidISOLangCode(final String code) {
88                  return getLanguageCodes().contains(code);                  return getLanguageCodes().contains(code);
89          }          }
90    
# Line 37  public class I8NUtil { Line 97  public class I8NUtil {
97          }          }
98    
99          /**          /**
100             * Lookup {@link Locale} where they speak the 2 letter code language.
101             *
102           * @param code           * @param code
103           *            A two-letter language code.           *            A two-letter language code.
104           * @return <code>null</code> or one (of many possible) {@link Locale} that           * @return <code>null</code> or one (of many possible) {@link Locale} that
105           *         uses this language.           *         uses this language.
106           */           */
107          public static Locale getLocaleFor(String code) {          public static List<Locale> getLocalesForLang(final String code) {
108                  for (Locale l : Locale.getAvailableLocales()) {  
109                    final ArrayList<Locale> locales = new ArrayList<Locale>();
110    
111                    for (final Locale l : Locale.getAvailableLocales()) {
112                          if (l.getLanguage().equals(code.toLowerCase())) {                          if (l.getLanguage().equals(code.toLowerCase())) {
113                                  return l;                                  locales.add(l);
114                          }                          }
 //                      LOGGER.debug(l.getLanguage() + " not = " + code);  
115                  }                  }
116    
117                    return locales;
118            }
119    
120            /**
121             * Lookup first country where they speak the 2 letter code language.
122             *
123             * @param code
124             *            A two-letter language code.
125             * @return <code>null</code> or one (of many possible) {@link Locale} that
126             *         uses this language.
127             */
128            public static Locale getFirstLocaleForLang(final String code) {
129    
130                    List<Locale> locales = getLocalesForLang(code);
131    
132                    if (locales.size() > 0)
133                            return locales.get(0);
134    
135                  LOGGER.error("Can't create a Locale for code " + code                  LOGGER.error("Can't create a Locale for code " + code
136                                  + "! Returning the system default locale to avoid NPEs.");                                  + "! Returning the system default locale to avoid NPEs.");
137    
# Line 88  public class I8NUtil { Line 170  public class I8NUtil {
170                          return true;                          return true;
171                  return false;                  return false;
172          }          }
173    
174            /**
175             * @return a {@link Double} between 0 and 1 representing the part of the
176             *         given {@link Translation} that has been filled.
177             * @param ac
178             *            {@link AtlasConfig} to determine the languages to expect.
179             * @param trans
180             *            The {@link Translation} to check.
181             */
182            public static double qmTranslation(final List<String> languages,
183                            final Translation trans) {
184    
185                    if (trans == null)
186                            return 0.;
187    
188                    Integer cunt = 0;
189                    for (final String l : languages) {
190                            final String t = trans.get(l);
191                            if (!isEmpty(t))
192                                    cunt++;
193                    }
194                    return cunt.doubleValue() / (double) languages.size();
195            }
196    
197            /**
198             * The German Umlaute have standard ASCII alternatives that are sometimes
199             * use. This method will replace any possible ASCII-Umlaut Representation
200             * into real Umlaute. E.g. "ae" to "ä" and "ue" to "ü". Umlaute are returned
201             * as inline-UTF8.
202             */
203            public static String mitUmlaute(final String withoutUmlaute) {
204                    String replaced = withoutUmlaute;
205    
206                    replaced = replaced.replaceAll("ue", "\u00FC");
207                    replaced = replaced.replaceAll("Ue", "\u00DC");
208    
209                    replaced = replaced.replaceAll("oe", "\u00F6");
210                    replaced = replaced.replaceAll("Oe", "\u00D6");
211    
212                    replaced = replaced.replaceAll("ae", "\u00E4");
213                    replaced = replaced.replaceAll("Ae", "\u00C4");
214                    return replaced;
215            }
216  }  }
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