cdmlib-model/src/main/java/eu/etaxonomy/cdm/jaxb/UUIDAdapter.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.cdm.jaxb;
  11
  12 import java.util.UUID;
  13
  14 import javax.xml.bind.annotation.adapters.XmlAdapter;
  15
  16 import org.apache.log4j.Logger;
  17
  18 /**
  19  * @author a.mueller
  20  * @created 23.07.2008
  21  * @version 1.0
  22  */
  23
  24
  25 public class UUIDAdapter extends XmlAdapter<String, UUID> {
  26         private static final Logger logger = Logger.getLogger(UUIDAdapter.class);
  27
  28         public static String UUID_URN_PREFIX = "urn-uuid-";
  29
  30         @Override
  31         public String marshal(UUID uuid) throws Exception {
  32                 if (logger.isDebugEnabled()){logger.debug("marshal");}
  33                 if(uuid != null) {
  34                         return UUIDAdapter.UUID_URN_PREFIX + uuid.toString();
  35                 } else {
  36                         return null;
  37                 }
  38         }
  39
  40         @Override
  41         public UUID unmarshal(String string) throws Exception {
  42                 if (logger.isDebugEnabled()){logger.debug("unmarshal");}
  43                 if(string.startsWith(UUIDAdapter.UUID_URN_PREFIX)) {
  44                         String uuidPart = string.substring(UUIDAdapter.UUID_URN_PREFIX.length());
  45                         return UUID.fromString(uuidPart);
  46                 } else {
  47                         throw new Exception("uuid attribute should start with " + UUIDAdapter.UUID_URN_PREFIX);
  48                 }
  49         }
  50 }