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

   1 package org.argeo.cms.i18n;
   2
   3 import java.lang.reflect.Field;
   4 import java.lang.reflect.Modifier;
   5 import java.util.Enumeration;
   6 import java.util.ResourceBundle;
   7 import java.util.Vector;
   8
   9 import org.argeo.cms.CmsException;
  10
  11 /** Expose the default values as a {@link ResourceBundle} */
  12 public class DefaultsResourceBundle extends ResourceBundle {
  13
  14         @Override
  15         protected Object handleGetObject(String key) {
  16                 Object obj;
  17                 try {
  18                         Field field = getClass().getField(key);
  19                         obj = field.getType().getMethod("getDefault")
  20                                         .invoke(field.get(null));
  21                 } catch (Exception e) {
  22                         throw new CmsException("Cannot get default for " + key, e);
  23                 }
  24                 return obj;
  25         }
  26
  27         @Override
  28         public Enumeration<String> getKeys() {
  29                 Vector<String> res = new Vector<String>();
  30                 final Field[] fieldArray = getClass().getDeclaredFields();
  31
  32                 for (Field field : fieldArray) {
  33                         if (Modifier.isStatic(field.getModifiers())
  34                                         && field.getType().isAssignableFrom(Msg.class)) {
  35                                 res.add(field.getName());
  36                         }
  37                 }
  38                 return res.elements();
  39         }
  40
  41 }