cdmlib-services/src/main/java/eu/etaxonomy/cdm/api/service/DistributionNodeByAreaLabelComparator.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 package eu.etaxonomy.cdm.api.service;
  10
  11 import java.util.Comparator;
  12 import java.util.Set;
  13
  14 import org.apache.commons.lang.StringUtils;
  15
  16 import eu.etaxonomy.cdm.common.TreeNode;
  17 import eu.etaxonomy.cdm.model.description.Distribution;
  18 import eu.etaxonomy.cdm.model.location.NamedArea;
  19
  20 public class DistributionNodeByAreaLabelComparator implements Comparator<TreeNode<Set<Distribution>, NamedArea>>{
  21     @Override
  22     public int compare(TreeNode<Set<Distribution>, NamedArea> node1, TreeNode<Set<Distribution>, NamedArea> node2) {
  23         String label1 = node1.getNodeId().getLabel();
  24         String label2 = node2.getNodeId().getLabel();
  25         if (StringUtils.isBlank(label1)){
  26             label1 = node1.getNodeId().getUuid().toString();
  27         }
  28         if (StringUtils.isBlank(label2)){
  29             label2 = node2.getNodeId().getUuid().toString();
  30         }
  31         int result = label1.compareTo(label2);
  32
  33         if (result == 0){
  34             result = node1.getNodeId().getUuid().compareTo(node2.getNodeId().getUuid());
  35         }
  36         return result;
  37     }
  38 }