eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/concept/handler/OpenRelatedConceptHandler.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
  10 package eu.etaxonomy.taxeditor.editor.view.concept.handler;
  11
  12 import org.eclipse.core.commands.AbstractHandler;
  13 import org.eclipse.core.commands.ExecutionEvent;
  14 import org.eclipse.core.commands.ExecutionException;
  15 import org.eclipse.jface.viewers.ISelection;
  16 import org.eclipse.jface.viewers.IStructuredSelection;
  17 import org.eclipse.ui.IEditorPart;
  18 import org.eclipse.ui.PartInitException;
  19 import org.eclipse.ui.handlers.HandlerUtil;
  20
  21 import eu.etaxonomy.cdm.model.taxon.Taxon;
  22 import eu.etaxonomy.cdm.model.taxon.TaxonBase;
  23 import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
  24 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  25 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  26 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  27 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  28 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  29 import eu.etaxonomy.taxeditor.model.LineSelection;
  30 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  31
  32 /**
  33  * @author n.hoffmann
  34  * @created Jan 25, 2011
  35  * @version 1.0
  36  */
  37 public class OpenRelatedConceptHandler extends AbstractHandler {
  38
  39         @Override
  40         public Object execute(ExecutionEvent event) throws ExecutionException {
  41                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  42         TaxonBase<?> relatedTaxon = null;
  43
  44         if(selection instanceof IStructuredSelection){
  45             IStructuredSelection structuredSelection = (IStructuredSelection) selection;
  46             Object selectedElement = structuredSelection.getFirstElement();
  47
  48             if(selectedElement instanceof TaxonRelationship){
  49                 IEditorPart activeEditor = AbstractUtility.getActiveEditor();
  50                 if(activeEditor instanceof MultiPageTaxonEditor){
  51                     relatedTaxon = getRelatedTaxon((TaxonRelationship) selectedElement, ((MultiPageTaxonEditor) activeEditor).getTaxon());
  52                 }
  53                 else if(activeEditor instanceof BulkEditor){
  54                     ISelection bulkSelection = ((BulkEditor)activeEditor).getSelectionProvider().getSelection();
  55                     if(bulkSelection instanceof LineSelection){
  56                         Object firstElement = ((LineSelection)bulkSelection).getFirstElement();
  57                         if(firstElement instanceof Taxon){
  58                             relatedTaxon = getRelatedTaxon((TaxonRelationship) selectedElement, (Taxon) firstElement);
  59                         }
  60                     }
  61                 }
  62             }
  63         }
  64
  65                 if(relatedTaxon==null){
  66                     MessagingUtils.messageDialog(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN, getClass(),
  67                             String.format(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN_MESSAGE ,relatedTaxon), null);
  68                 }
  69                 else{
  70                     openConcept(relatedTaxon);
  71                 }
  72
  73                 return null;
  74         }
  75
  76     /**
  77      * @param relatedTaxon
  78      */
  79     protected void openConcept(TaxonBase<?> relatedTaxon) {
  80         try {
  81             EditorUtil.openTaxonBase(relatedTaxon.getUuid());
  82         } catch (PartInitException e) {
  83             MessagingUtils.messageDialog(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN, getClass(),
  84                     String.format(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN_MESSAGE ,relatedTaxon), e);
  85         }
  86     }
  87
  88         private Taxon getRelatedTaxon(TaxonRelationship relationship, Taxon taxon){
  89                 if (relationship.getFromTaxon().equals(taxon)){
  90                         return relationship.getToTaxon();
  91                 }
  92                 else if(relationship.getToTaxon().equals(taxon)){
  93                         return relationship.getFromTaxon();
  94                 }
  95                 else{
  96                         return null;
  97                 }
  98         }
  99 }