/*
    * This file is part of ***  M y C o R e  ***
    * See http://www.mycore.de/ for details.
    *
    * MyCoRe is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    *
   * MyCoRe 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 General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with MyCoRe.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package org.mycore.pi.urn;
  
  import java.util.Date;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.mycore.datamodel.metadata.MCRBase;
  import org.mycore.pi.MCRPIService;
  import org.mycore.pi.exceptions.MCRPersistentIdentifierException;
  
  /**
   * This class registers urn for Metadata.
   */
  public class MCRURNOAIService extends MCRPIService<MCRDNBURN> {
  
      private static final Logger LOGGER = LogManager.getLogger();
  
      public MCRURNOAIService() {
          super(MCRDNBURN.TYPE);
      }
  
      @Override
      protected void registerIdentifier(MCRBase obj, String additional, MCRDNBURN urn)
          throws MCRPersistentIdentifierException {
          if (!additional.equals("")) {
              throw new MCRPersistentIdentifierException(
                  getClass().getName() + " doesn't support additional information! (" + additional + ")");
          }
      }
  
      @Override
      protected void delete(MCRDNBURN identifier, MCRBase obj, String additional)
          throws MCRPersistentIdentifierException {
          // no user information available
      }
  
      @Override
      protected void update(MCRDNBURN identifier, MCRBase obj, String additional)
          throws MCRPersistentIdentifierException {
          // nothing to do here!
      }
  
      @Override
      protected Date provideRegisterDate(MCRBase obj, String additional) {
          return null;
      }
  
  }