I18nCompatibilityKey.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2021 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.i18n;
 
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.turro.i18n.migration.MigrateProperties;
 
public class I18nCompatibilityKey extends ConcurrentHashMap<String, String> {
 
  /* Factory */
  
  private static I18nCompatibilityKey keyLabelsMap;
  
  public static I18nCompatibilityKey instance() {
    if(keyLabelsMap == null) {
      keyLabelsMap = new I18nCompatibilityKey();
    }
    return keyLabelsMap;
  }
  
  public static void resetMap() {
    keyLabelsMap = null;
  }
  
  private I18nCompatibilityKey() {
    fillMap();
  }
 
  private void fillMap() {
    for(String bundle : MigrateProperties.MIGRATE_BUNDLES) {
      try {
        ResourceBundle rb = ResourceBundle.getBundle(bundle, Locale.forLanguageTag("en"));
        for(String key : rb.keySet()) {
          put(key, rb.getString(key));
        }
        ResourceBundle.clearCache();
      } catch(MissingResourceException ex) {
        Logger.getLogger(I18nCompatibilityKey.class.getName()).log(Level.FINEST, null, ex);
      }
    }
  }
 
}