/[schmitzm]/trunk/src/skrueger/i8n/I8NUtil.java
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revision 185 by alfonx, Fri Jul 3 14:36:08 2009 UTC revision 1100 by alfonx, Mon Oct 11 00:07:14 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;
37    
38  import org.apache.log4j.Logger;  import org.apache.log4j.Logger;
39    import org.geotools.resources.i18n.Locales;
40    
41  public class I8NUtil {  public class I8NUtil {
42          static final Logger LOGGER = Logger.getLogger(I8NUtil.class);          static final Logger LOGGER = Logger.getLogger(I8NUtil.class);
43    
44          private static Set<String> languageCodes = new TreeSet<String>();          private static Set<String> languageCodes = new TreeSet<String>();
45          static {          static {
46                  for (Locale locale : java.util.Locale.getAvailableLocales()) {                  for (final Locale locale : java.util.Locale.getAvailableLocales()) {
47                          getLanguageCodes().add(locale.getLanguage());                          getLanguageCodes().add(locale.getLanguage());
48                  }                  }
49                  // for (String code : java.util.Locale.getISOLanguages()) {                  // for (String code : java.util.Locale.getISOLanguages()) {
# Line 26  public class I8NUtil { Line 58  public class I8NUtil {
58           * <li>If format can't be recognized, the {@link String} is interpreted as           * <li>If format can't be recognized, the {@link String} is interpreted as
59           * the translation in the <code>{@value #DEFAULT_KEY}</code> language           * the translation in the <code>{@value #DEFAULT_KEY}</code> language
60           *           *
61           * @author Stefan Alfons Krüger           * @author Stefan Alfons Tzeggai
62           */           */
63          public static Translation createFromOneLIne(final String oneLineCoded) {          public static Translation createFromOneLine(final String oneLineCoded) {
64                  Translation result = new Translation();                  final Translation result = new Translation();
65                  result.fromOneLine(oneLineCoded);                  result.fromOneLine(oneLineCoded);
66                  return result;                  return result;
67          }          }
# Line 38  public class I8NUtil { Line 70  public class I8NUtil {
70           * Returns the Translation to a String of the Format: "de{Baum}en{tree}" <br/>           * Returns the Translation to a String of the Format: "de{Baum}en{tree}" <br/>
71           *           *
72           *           *
73           * @author Stefan Alfons Krüger           * @author Stefan Alfons Tzeggai
74           */           */
75          public static String toOneLine(Translation source) {          public static String toOneLine(final Translation source) {
76                  StringBuffer oneLine = new StringBuffer();                  final StringBuffer oneLine = new StringBuffer();
77                  for (String key : source.keySet()) {                  for (final String key : source.keySet()) {
78                          oneLine.append(key + "{" + source.get(key) + "}");                          oneLine.append(key + "{" + source.get(key) + "}");
79                  }                  }
80                  return oneLine.toString();                  return oneLine.toString();
81          }          }
82    
83          /**          /**
84           * @author Stefan Alfons Krüger           * @author Stefan Alfons Tzeggai
85           * @param code           * @param code
86           * @return true if the code paramter is a valid ISO Language code           * @return true if the code paramter is a valid ISO Language code
87           */           */
88          public static boolean isValidISOLangCode(String code) {          public static boolean isValidISOLangCode(final String code) {
89                  return getLanguageCodes().contains(code);                  return getLanguageCodes().contains(code);
90          }          }
91    
# Line 66  public class I8NUtil { Line 98  public class I8NUtil {
98          }          }
99    
100          /**          /**
101             * Lookup {@link Locale} where they speak the 2 letter code language.
102             *
103           * @param code           * @param code
104           *            A two-letter language code.           *            A two-letter language code.
105           * @return <code>null</code> or one (of many possible) {@link Locale} that           * @return <code>null</code> or one (of many possible) {@link Locale} that
106           *         uses this language.           *         uses this language.
107           */           */
108          public static Locale getLocaleFor(String code) {          public static List<Locale> getLocalesForLang(final String code) {
109                  for (Locale l : Locale.getAvailableLocales()) {  
110                    final ArrayList<Locale> locales = new ArrayList<Locale>();
111    
112                    for (final Locale l : Locale.getAvailableLocales()) {
113                          if (l.getLanguage().equals(code.toLowerCase())) {                          if (l.getLanguage().equals(code.toLowerCase())) {
114                                  return l;                                  locales.add(l);
115                          }                          }
                         // LOGGER.debug(l.getLanguage() + " not = " + code);  
116                  }                  }
117    
118                    return locales;
119            }
120    
121            /**
122             * Lookup first country where they speak the 2 letter code language.
123             *
124             * @param code
125             *            A two-letter language code.
126             * @return <code>null</code> or one (of many possible) {@link Locale} that
127             *         uses this language.
128             */
129            public static Locale getFirstLocaleForLang(final String code) {
130    
131                    List<Locale> locales = getLocalesForLang(code);
132    
133                    if (locales.size() > 0)
134                            return locales.get(0);
135    
136                  LOGGER.error("Can't create a Locale for code " + code                  LOGGER.error("Can't create a Locale for code " + code
137                                  + "! Returning the system default locale to avoid NPEs.");                                  + "! Returning the system default locale to avoid NPEs.");
138    
# Line 117  public class I8NUtil { Line 171  public class I8NUtil {
171                          return true;                          return true;
172                  return false;                  return false;
173          }          }
174    
175            /**
176             * @return a {@link Double} between 0 and 1 representing the part of the
177             *         given {@link Translation} that has been filled.
178             * @param ac
179             *            {@link AtlasConfig} to determine the languages to expect.
180             * @param trans
181             *            The {@link Translation} to check.
182             */
183            public static double qmTranslation(final List<String> languages,
184                            final Translation trans) {
185    
186                    if (trans == null)
187                            return 0.;
188    
189                    Integer cunt = 0;
190                    for (final String l : languages) {
191                            final String t = trans.get(l);
192                            if (!isEmpty(t))
193                                    cunt++;
194                    }
195                    return cunt.doubleValue() / (double) languages.size();
196            }
197    
198            /**
199             * The German Umlaute have standard ASCII alternatives that are sometimes
200             * use. This method will replace any possible ASCII-Umlaut Representation
201             * into real Umlaute. E.g. "ae" to "ä" and "ue" to "ü". Umlaute are returned
202             * as inline-UTF8.
203             */
204            public static String mitUmlaute(final String withoutUmlaute) {
205                    String replaced = withoutUmlaute;
206    
207                    replaced = replaced.replaceAll("ue", "\u00FC");
208                    replaced = replaced.replaceAll("Ue", "\u00DC");
209    
210                    replaced = replaced.replaceAll("oe", "\u00F6");
211                    replaced = replaced.replaceAll("Oe", "\u00D6");
212    
213                    replaced = replaced.replaceAll("ae", "\u00E4");
214                    replaced = replaced.replaceAll("Ae", "\u00C4");
215                    return replaced;
216            }
217  }  }
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