eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/checklist/e4/TaxonDistributionDtoComparator.java

   1 /**
   2 * Copyright (C) 2018 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.taxeditor.editor.view.checklist.e4;
  10
  11 import java.util.Comparator;
  12
  13 import eu.etaxonomy.cdm.api.service.dto.TaxonDistributionDTO;
  14 import eu.etaxonomy.cdm.model.name.Rank;
  15
  16 /**
  17  * @author k.luther
  18  * @since 28.11.2018
  19  *
  20  */
  21 public class TaxonDistributionDtoComparator implements Comparator<TaxonDistributionDTO> {
  22
  23     /**
  24      * {@inheritDoc}
  25      */
  26     @Override
  27     public int compare(TaxonDistributionDTO arg0, TaxonDistributionDTO arg1) {
  28         if (arg0 == arg1){
  29             return 0;
  30         }
  31
  32         if (arg0.getTaxonUuid().equals(arg1.getTaxonUuid())){
  33             return 0;
  34         }
  35
  36         String name1 = arg0.getNameCache();
  37         String name2 = arg1.getNameCache();
  38         Rank rankTax1 = arg0.getRank();
  39         Rank rankTax2 = arg1.getRank();
  40
  41         if (rankTax1 == null && rankTax2 != null){
  42             return 1;
  43         }else if(rankTax2 == null && rankTax1 != null){
  44             return -1;
  45         }else if (rankTax1 != null && rankTax1.isHigher(rankTax2)){
  46             return -1;
  47         }else if (rankTax1 == null && rankTax2 == null || rankTax1.equals(rankTax2)) {
  48             //same rank, order by name
  49             return name1.compareTo(name2);
  50          }
  51
  52         return 0;
  53     }
  54
  55 }