/*
    * 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.mods.enrichment;
  
  import org.jaxen.JaxenException;
  import org.jdom2.Element;
  import org.mycore.common.MCRException;
  import org.mycore.common.xml.MCRNodeBuilder;
  
  /**
   * Represents a publication's identifier like DOI or ISBN
   *
   * @author Frank L\u00FCtzenkirchen
   */
  public class MCRIdentifier {
  
      private MCRIdentifierType type;
  
      private String value;
  
      MCRIdentifier(MCRIdentifierType type, String value) {
          this.type = type;
          this.value = value;
      }
  
      public MCRIdentifierType getType() {
          return type;
      }
  
      public String getValue() {
          return value;
      }
  
      @Override
      public boolean equals(Object other) {
          return (other instanceof MCRIdentifier && this.toString().equals(other.toString()));
      }
  
      @Override
      public int hashCode() {
          return toString().hashCode();
      }
  
      @Override
      public String toString() {
          return type.getTypeID() + " " + value;
      }
  
      /**
       * Builds the XML representation of this identifier within MODS.
       */
      void mergeInto(Element publication) {
          Element container = new Element(publication.getName(), publication.getNamespace());
          try {
              new MCRNodeBuilder().buildElement(type.getXPath(), value, container);
          } catch (JaxenException ex) {
              throw new MCRException(ex);
          }
          MCREnricher.merge(publication, container);
      }
  }