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

   1 package org.argeo.cms;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5 import java.util.Locale;
   6 import java.util.ResourceBundle;
   7
   8 import org.argeo.cms.auth.CurrentUser;
   9
  10 /** Utilities simplifying the development of localization enums. */
  11 public class LocaleUtils {
  12         public static Object local(Enum<?> en) {
  13                 return local(en, getCurrentLocale(), "/OSGI-INF/l10n/bundle");
  14         }
  15
  16         public static Object local(Enum<?> en, Locale locale) {
  17                 return local(en, locale, "/OSGI-INF/l10n/bundle");
  18         }
  19
  20         public static Object local(Enum<?> en, Locale locale, String resource) {
  21                 return local(en, locale, resource, en.getClass().getClassLoader());
  22         }
  23
  24         public static Object local(Enum<?> en, Locale locale, String resource, ClassLoader classLoader) {
  25                 ResourceBundle rb = ResourceBundle.getBundle(resource, locale, classLoader);
  26                 return rb.getString(en.name());
  27         }
  28
  29         public static String lead(String raw, Locale locale) {
  30                 return raw.substring(0, 1).toUpperCase(locale) + raw.substring(1);
  31         }
  32
  33         public static String lead(Localized localized) {
  34                 return lead(localized, getCurrentLocale());
  35         }
  36
  37         public static String lead(Localized localized, Locale locale) {
  38                 return lead(localized.local(locale).toString(), locale);
  39         }
  40
  41         static Locale getCurrentLocale() {
  42                 return CurrentUser.locale();
  43                 // return UiContext.getLocale();
  44                 // FIXME look into Subject or settings
  45                 // return Locale.getDefault();
  46         }
  47
  48         /** Returns null if argument is null. */
  49         public static List<Locale> asLocaleList(Object locales) {
  50                 if (locales == null)
  51                         return null;
  52                 ArrayList<Locale> availableLocales = new ArrayList<Locale>();
  53                 String[] codes = locales.toString().split(",");
  54                 for (int i = 0; i < codes.length; i++) {
  55                         String code = codes[i];
  56                         // variant not supported
  57                         int indexUnd = code.indexOf("_");
  58                         Locale locale;
  59                         if (indexUnd > 0) {
  60                                 String language = code.substring(0, indexUnd);
  61                                 String country = code.substring(indexUnd + 1);
  62                                 locale = new Locale(language, country);
  63                         } else {
  64                                 locale = new Locale(code);
  65                         }
  66                         availableLocales.add(locale);
  67                 }
  68                 return availableLocales;
  69         }
  70 }