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

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