UserPreferences.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 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.elephant.impl.security;
 
import java.io.File;
import java.util.HashMap;
import org.turro.elephant.context.ElephantContext;
import org.turro.reflection.Serializer;
 
public class UserPreferences extends HashMap<String, Object> {
 
  private static final long serialVersionUID = 1L;
  
  private static final String PREFERENCES_ROOT = "/WEB-INF/elephant/preferences";
  private transient String id;
  private transient File file;
 
  public static UserPreferences getSystem() {
    return getInstance("ElephantSystem");
  }
  
  public static UserPreferences getInstance(String id) {
    File root = new File(ElephantContext.getRealPath(PREFERENCES_ROOT));
    if (!root.exists()) {
      root.mkdirs();
    }
    File file = new File(ElephantContext.getRealPath(PREFERENCES_ROOT + "/" + id + ".preferences"));
    UserPreferences up = (UserPreferences) Serializer.deserialize(file);
    if(up == null) {
      up = new UserPreferences();
    }
    up.setId(id);
    up.setFile(file);
    return up;
  }
 
  public boolean isEqual(String id) {
    return this.id.equals(id);
  }
 
  @Override
  public Object put(String key, Object value) {
    Object obj = super.put(key, value);
    Serializer.serialize(file, this);
    return obj;
  }
 
  private void setId(String id) {
    this.id = id;
  }
 
  private void setFile(File file) {
    this.file = file;
  }
 
}