git.gag.com Git - debian/openrocket/blob - core/src/net/sf/openrocket/l10n/ResourceBundleTranslator.java

   1 package net.sf.openrocket.l10n;
   2
   3 import java.util.Locale;
   4 import java.util.MissingResourceException;
   5 import java.util.ResourceBundle;
   6
   7 /**
   8  * A translator that obtains translated strings from a resource bundle.
   9  *
  10  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  11  */
  12 public class ResourceBundleTranslator implements Translator {
  13
  14         private final ResourceBundle bundle;
  15         private final ResourceBundle english;
  16
  17         /**
  18          * Create a ResourceBundleTranslator using the default Locale.
  19          *
  20          * @param baseName      the base name of the resource bundle
  21          */
  22         public ResourceBundleTranslator(String baseName) {
  23                 this(baseName, Locale.getDefault());
  24         }
  25
  26         /**
  27          * Create a ResourceBundleTranslator using the specified Locale.
  28          *
  29          * @param baseName      the base name of the resource bundle
  30          * @param locale        the locale to use
  31          */
  32         public ResourceBundleTranslator(String baseName, Locale locale) {
  33                 this.bundle = ResourceBundle.getBundle(baseName, locale);
  34                 this.english = ResourceBundle.getBundle(baseName, Locale.ROOT);
  35         }
  36
  37
  38         /*
  39          * NOTE:  This method must be thread-safe!
  40          */
  41         @Override
  42         public synchronized String get(String key) {
  43                 return bundle.getString(key);
  44         }
  45
  46         @Override
  47         public synchronized String get(String base, String text) {
  48                 String key = base + "." + L10N.normalize(text);
  49                 try {
  50                         return bundle.getString(key);
  51                 } catch (MissingResourceException e) {
  52                         return text;
  53                 }
  54         }
  55
  56         @Override
  57         public synchronized String getBaseText(String base, String translation) {
  58                 String prefix = base + ".";
  59                 for (String key : bundle.keySet()) {
  60                         if (key.startsWith(prefix)) {
  61                                 String value = bundle.getString(key);
  62                                 if (value.equals(translation)) {
  63                                         return english.getString(key);
  64                                 }
  65                         }
  66                 }
  67                 return translation;
  68         }
  69 }