/*
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.exoplatform.services.jcr.util;

import org.exoplatform.services.idgenerator.IDGeneratorService;
import org.exoplatform.services.jcr.datamodel.Identifier;

/**
 * Created by The eXo Platform SAS.
 * 
 * @author <a href="mailto:gennady.azarenkov@exoplatform.com">Gennady Azarenkov </a>
 * @version $Id: IdGenerator.java 11907 2008-03-13 15:36:21Z ksm $
 */

public class IdGenerator
{
   public static final int IDENTIFIER_LENGTH = IDGeneratorService.ID_LENGTH;

   private static volatile IDGeneratorService idGenerator;

   public IdGenerator(IDGeneratorService idGenerator)
   {
      if (IdGenerator.idGenerator == null)
      {
         synchronized (IdGenerator.class)
         {
            if (IdGenerator.idGenerator == null)
            {
               IdGenerator.idGenerator = idGenerator;               
            }
         }
      }
   }

   public Identifier generateId(String path)
   {
      return new Identifier(idGenerator.generateStringID(path));
   }

   public String generateStringId(String path)
   {
      return idGenerator.generateStringID(path);
   }

   public static String generate()
   {
      return idGenerator.generateStringID(Long.toString(System.currentTimeMillis()));
   }
}