org.argeo.cms/src/org/argeo/cms/i18n/LocaleUtils.java

   1 package org.argeo.cms.i18n;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5 import java.util.Locale;
   6 import java.util.ResourceBundle;
   7
   8 /** Utilities simplifying the development of localization enums. */
   9 public class LocaleUtils {
  10         public static Object local(Enum<?> en) {
  11                 return local(en, getCurrentLocale(), "/OSGI-INF/l10n/bundle");
  12         }
  13
  14         public static Object local(Enum<?> en, Locale locale) {
  15                 return local(en, locale, "/OSGI-INF/l10n/bundle");
  16         }
  17
  18         public static Object local(Enum<?> en, Locale locale, String resource) {
  19                 return local(en, locale, resource, en.getClass().getClassLoader());
  20         }
  21
  22         public static Object local(Enum<?> en, Locale locale, String resource, ClassLoader classLoader) {
  23                 ResourceBundle rb = ResourceBundle.getBundle(resource, locale, classLoader);
  24                 return rb.getString(en.name());
  25         }
  26
  27         public static String lead(String raw, Locale locale) {
  28                 return raw.substring(0, 1).toUpperCase(locale) + raw.substring(1);
  29         }
  30
  31         public static String lead(Localized localized) {
  32                 return lead(localized, getCurrentLocale());
  33         }
  34
  35         public static String lead(Localized localized, Locale locale) {
  36                 return lead(localized.local(locale).toString(), locale);
  37         }
  38
  39         static Locale getCurrentLocale() {
  40                 // return UiContext.getLocale();
  41                 // FIXME look into Subject or settings
  42                 return Locale.getDefault();
  43         }
  44
  45         /** Returns null if argument is null. */
  46         public static List<Locale> asLocaleList(Object locales) {
  47                 if (locales == null)
  48                         return null;
  49                 ArrayList<Locale> availableLocales = new ArrayList<Locale>();
  50                 String[] codes = locales.toString().split(",");
  51                 for (int i = 0; i < codes.length; i++) {
  52                         String code = codes[i];
  53                         // variant not supported
  54                         int indexUnd = code.indexOf("_");
  55                         Locale locale;
  56                         if (indexUnd > 0) {
  57                                 String language = code.substring(0, indexUnd);
  58                                 String country = code.substring(indexUnd + 1);
  59                                 locale = new Locale(language, country);
  60                         } else {
  61                                 locale = new Locale(code);
  62                         }
  63                         availableLocales.add(locale);
  64                 }
  65                 return availableLocales;
  66         }
  67 }