eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/name/handler/DeleteTaxonBaseHandler.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.name.handler;
  11 import org.eclipse.core.commands.AbstractHandler;
  12 import org.eclipse.core.commands.ExecutionEvent;
  13 import org.eclipse.core.commands.ExecutionException;
  14 import org.eclipse.core.commands.IHandler;
  15 import org.eclipse.core.commands.common.NotDefinedException;
  16
  17 import eu.etaxonomy.cdm.model.taxon.Synonym;
  18 import eu.etaxonomy.cdm.model.taxon.Taxon;
  19 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  20 import eu.etaxonomy.taxeditor.editor.Page;
  21 import eu.etaxonomy.taxeditor.editor.name.TaxonNameEditor;
  22 import eu.etaxonomy.taxeditor.editor.name.operation.DeleteMisapplicationOperation;
  23 import eu.etaxonomy.taxeditor.editor.name.operation.DeleteSynonymOperation;
  24 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  25
  26 /**
  27  * <p>DeleteTaxonBaseHandler class.</p>
  28  *
  29  * @author n.hoffmann
  30  * @created 21.04.2009
  31  * @version 1.0
  32  */
  33 public class DeleteTaxonBaseHandler extends AbstractHandler implements IHandler {
  34
  35         /* (non-Javadoc)
  36          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  37          */
  38         /** {@inheritDoc} */
  39         public Object execute(ExecutionEvent event) throws ExecutionException {
  40                 TaxonNameEditor editor = (TaxonNameEditor) EditorUtil.getActiveEditorPage(Page.NAME);
  41
  42                 Object selectedElement = EditorUtil.getSelection(event).getFirstElement();
  43
  44                 doExecute(event, editor, selectedElement);
  45
  46                 return null;
  47         }
  48
  49         /**
  50          * @param editor
  51          * @param selectedElement
  52          * @param operation
  53          * @param commandName
  54          */
  55         protected void doExecute(ExecutionEvent event, TaxonNameEditor editor, Object selectedElement) {
  56                 AbstractPostOperation operation = null;
  57                 String commandName = null;
  58
  59                 try {
  60                         commandName = event.getCommand().getName();
  61                 } catch (NotDefinedException e) {
  62                         EditorUtil.error(getClass(), e);
  63                 }
  64
  65                 // synonym
  66                 if(selectedElement instanceof Synonym){
  67                         operation = new DeleteSynonymOperation(commandName, editor.getUndoContext(), editor.getTaxon(), (Synonym) selectedElement, editor);
  68                 }
  69                 // misapplication
  70                 else if(selectedElement instanceof Taxon && ((Taxon) selectedElement).isMisapplication()){
  71                         operation = new DeleteMisapplicationOperation(commandName, editor.getUndoContext(), editor
  72                                         .getTaxon(), (Taxon) selectedElement, editor);
  73                 }
  74                 else {
  75                         throw new IllegalArgumentException("Element has to be Synonym, Misapplication or Concept");
  76                 }
  77
  78                 EditorUtil.executeOperation(operation);
  79         }
  80
  81 }