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     /* (non-Javadoc)
  25      * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  26      */
  27     @Override
  28     public Object execute(ExecutionEvent event) throws ExecutionException {
  29         ISelection currentSelection = HandlerUtil.getCurrentSelection(event);
  30         if(currentSelection instanceof IStructuredSelection){
  31             Iterator<?> selectionIterator = ((IStructuredSelection) currentSelection).iterator();
  32             Set<UUID> selectedElementUUIDs = new HashSet<UUID>();
  33             while(selectionIterator.hasNext()){
  34                 Object object = selectionIterator.next();
  35                 if(object instanceof SpecimenOrObservationBase<?>){
  36                     selectedElementUUIDs.add(((SpecimenOrObservationBase<?>) object).getUuid());
  37                 }
  38                 else if(object instanceof IndividualsAssociation){
  39                     SpecimenOrObservationBase specimen = ((IndividualsAssociation) object).getAssociatedSpecimenOrObservation();
  40                     if(specimen!=null){
  41                         selectedElementUUIDs.add(specimen.getUuid());
  42                     }
  43                 }
  44             }
  45             DerivateViewEditorInput input = new DerivateViewEditorInput(selectedElementUUIDs);
  46             try {
  47                 EditorUtil.open(input);
  48             } catch (PartInitException e) {
  49                 MessagingUtils.error(OpenDerivateViewHandler.class, "Could not open Derivate Editor", e);
  50             } catch (NullPointerException npe){
  51                 MessagingUtils.messageDialog("Failed to open Editor", OpenDerivateViewHandler.class, "Could not open Derivate Editor. The derivate hierarchy is corrupted!", npe);
  52             }
  53         }
  54         return null;
  55     }
  56
  57 }