Version 1, September 2006

[GpsPrune.git] / tim / prune / I18nManager.java

diff --git a/tim/prune/I18nManager.java b/tim/prune/I18nManager.java
new file mode 100644 (file)
index 0000000..c056fe2
--- /dev/null
+++ b/tim/prune/I18nManager.java
@@ -0,0 +1,76 @@
+package tim.prune;
+
+import java.util.Locale;
+import java.util.MissingResourceException;
+import java.util.ResourceBundle;
+
+/**
+ * Manager for all internationalization
+ * Responsible for loading property files
+ * and delivering language-specific texts
+ */
+public abstract class I18nManager
+{
+       private static final String BUNDLE_NAME = "tim.prune.lang.prune-texts";
+       private static final Locale BACKUP_LOCALE = new Locale("en", "GB");
+
+       private static ResourceBundle EnglishTexts = null;
+       private static ResourceBundle ExtraTexts = null;
+
+
+       /**
+        * Initialize the library
+        * using the (optional) locale
+        */
+       public static void init(Locale inLocale)
+       {
+               // Load English texts first to use as defaults
+               EnglishTexts = ResourceBundle.getBundle(BUNDLE_NAME, BACKUP_LOCALE);
+
+               // Get bundle for selected locale, if any
+               if (inLocale != null)
+               {
+                       ExtraTexts = ResourceBundle.getBundle(BUNDLE_NAME, inLocale);
+               }
+               else
+               {
+                       // locale is null so just use the system default
+                       ExtraTexts = ResourceBundle.getBundle(BUNDLE_NAME, Locale.getDefault());
+               }
+       }
+
+
+       /**
+        * Lookup the given key and return the associated text
+        * @param inKey key to lookup
+        * @return associated text, or the key if not found
+        */
+       public static String getText(String inKey)
+       {
+               String value = null;
+               // look in extra texts if available
+               if (ExtraTexts != null)
+               {
+                       try
+                       {
+                               value = ExtraTexts.getString(inKey);
+                               if (value != null && !value.equals(""))
+                                       return value;
+                       }
+                       catch (MissingResourceException mre) {}
+               }
+               // look in english texts
+               if (EnglishTexts != null)
+               {
+                       try
+                       {
+                               value = EnglishTexts.getString(inKey);
+                               if (value != null && !value.equals(""))
+                                       return value;
+                       }
+                       catch (MissingResourceException mre) {}
+               }
+               // return the key itself
+               return inKey;
+       }
+}