eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/handler/OpenDerivateViewHandler.java

   1 package eu.etaxonomy.taxeditor.editor.handler;
   2
   3 import java.util.HashSet;
   4 import java.util.Iterator;
   5 import java.util.Set;
   6 import java.util.UUID;
   7
   8 import org.eclipse.core.commands.AbstractHandler;
   9 import org.eclipse.core.commands.ExecutionEvent;
  10 import org.eclipse.core.commands.ExecutionException;
  11 import org.eclipse.jface.viewers.ISelection;
  12 import org.eclipse.jface.viewers.IStructuredSelection;
  13 import org.eclipse.ui.PartInitException;
  14 import org.eclipse.ui.handlers.HandlerUtil;
  15
  16 import eu.etaxonomy.cdm.model.description.IndividualsAssociation;
  17 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
  18 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  19 import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateViewEditorInput;
  20 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  21
  22 public class OpenDerivateViewHandler extends AbstractHandler {
  23
  24     @Override
  25     public Object execute(ExecutionEvent event) throws ExecutionException {
  26         Set<UUID> selectedElementUUIDs = new HashSet<UUID>();
  27         Object parameter;
  28         //check if parameter is set
  29         try {
  30             parameter = event.getObjectParameterForExecution("eu.etaxonomy.taxeditor.specimenUuidParameter");
  31         } catch (ExecutionException e) {
  32             parameter = null;
  33         }
  34         if(parameter instanceof UUID){
  35             selectedElementUUIDs.add((UUID) parameter);
  36         }
  37         else{
  38             //if not, try with current selection
  39             ISelection currentSelection = HandlerUtil.getCurrentSelection(event);
  40             if(currentSelection instanceof IStructuredSelection){
  41                 Iterator<?> selectionIterator = ((IStructuredSelection) currentSelection).iterator();
  42                 while(selectionIterator.hasNext()){
  43                     Object object = selectionIterator.next();
  44                     if(object instanceof SpecimenOrObservationBase<?>){
  45                         selectedElementUUIDs.add(((SpecimenOrObservationBase<?>) object).getUuid());
  46                     }
  47                     else if(object instanceof IndividualsAssociation){
  48                         SpecimenOrObservationBase specimen = ((IndividualsAssociation) object).getAssociatedSpecimenOrObservation();
  49                         if(specimen!=null){
  50                             selectedElementUUIDs.add(specimen.getUuid());
  51                         }
  52                     }
  53                 }
  54             }
  55         }
  56         if(!selectedElementUUIDs.isEmpty()){
  57             DerivateViewEditorInput input = new DerivateViewEditorInput(selectedElementUUIDs);
  58             try {
  59                 EditorUtil.open(input);
  60             } catch (PartInitException e) {
  61                 MessagingUtils.error(OpenDerivateViewHandler.class, "Could not open Derivative Editor", e);
  62             } catch (NullPointerException npe){
  63                 MessagingUtils.messageDialog("Failed to open Editor", OpenDerivateViewHandler.class, "Could not open Derivative Editor. The derivate hierarchy is corrupted!", npe);
  64             }
  65         }
  66         else{
  67             MessagingUtils.informationDialog("Empty selection", "No Specimen selected.");
  68         }
  69         return null;
  70     }
  71
  72 }