eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/section/description/SourceComparator.java

   1 package eu.etaxonomy.taxeditor.ui.section.description;
   2
   3
   4 import java.util.Comparator;
   5
   6 import eu.etaxonomy.cdm.model.description.DescriptionElementSource;
   7 import eu.etaxonomy.cdm.model.reference.OriginalSourceBase;
   8 import eu.etaxonomy.cdm.model.reference.OriginalSourceType;
   9 import eu.etaxonomy.cdm.model.reference.Reference;
  10
  11 /**
  12  * @author pplitzner
  13  * @date Apr 13, 2016
  14  *
  15  */
  16 public class SourceComparator  <T extends OriginalSourceBase> implements Comparator<T> {
  17     @Override
  18     public int compare(T o1, T o2) {
  19         int id1 = o1.getId();
  20         int id2 = o2.getId();
  21         boolean isDescriptionElementSource1 = false;
  22         boolean isDescriptionElementSource2 = false;
  23         if (o1 instanceof DescriptionElementSource){
  24             isDescriptionElementSource1 = true;
  25         }
  26         if (o2 instanceof DescriptionElementSource){
  27             isDescriptionElementSource2 = true;
  28         }
  29         int result = 0;
  30         if (isDescriptionElementSource1 != isDescriptionElementSource2){
  31             if (isDescriptionElementSource1){
  32                 return -1;
  33             }else{
  34                 return 1;
  35             }
  36         }
  37         OriginalSourceType type1 = o1.getType();
  38         OriginalSourceType type2 = o2.getType();
  39         Reference citation1 = o1.getCitation();
  40         Reference citation2 = o2.getCitation();
  41
  42
  43
  44         // the newly created should always be on top
  45         if (id1 == 0){
  46             if(id2!=0) {
  47                 return -1;
  48             }
  49             else{
  50                 result = 0;
  51             }
  52         } else if(id2==0){
  53             return 1;
  54         }
  55
  56         // sort by type (Primary taxonomic > Primary Media > others
  57         // alphabetically by reference title cache)
  58         else if (type1 == null){
  59             if(type2==null){
  60                 result = 0;
  61             }
  62             else{
  63                 result = -1;
  64             }
  65         } else if (type2 == null){
  66             result = 1;
  67         } else if(type1.equals(type2)){
  68             result = 0;
  69         } else if (type1.equals(OriginalSourceType.PrimaryTaxonomicSource)){
  70             result = 1;
  71         } else if (type2.equals(OriginalSourceType.PrimaryTaxonomicSource)){
  72             result = -1;
  73         } else if (type1.equals(OriginalSourceType.PrimaryMediaSource)){
  74             result = 1;
  75         } else if (type2.equals(OriginalSourceType.PrimaryMediaSource)){
  76             result = -1;
  77         }
  78
  79         //sort by citation title cache if types are equal
  80         if (result == 0){
  81             if(citation1!=null && citation2!=null){
  82                 result = citation1.getTitleCache().compareTo(citation2.getTitleCache());
  83             }
  84
  85             if(o2.getCreated()!=null && o1.getCreated()!=null){
  86                 result = o1.getCreated().compareTo(o2.getCreated());
  87             }else if (o1.getCreated() == null ){
  88                 if (o2.getCreated() == null){
  89                     result = 0;
  90                 }else{
  91                     return -1;
  92                 }
  93             }else if (o2.getCreated() == null){
  94                 return 1;
  95             }
  96             if (result == 0){
  97                 //default fallback
  98                 return o1.getUuid().compareTo(o2.getUuid());
  99             }
 100         }
 101         return result;
 102
 103
 104     }
 105 }