eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/concept/handler/CreateConceptRelationHandler.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.editor.view.concept.handler;
  12
  13 import org.apache.log4j.Level;
  14 import org.apache.log4j.Logger;
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.commands.common.NotDefinedException;
  19 import org.eclipse.core.expressions.IEvaluationContext;
  20 import org.eclipse.core.runtime.Status;
  21 import org.eclipse.swt.widgets.Event;
  22 import org.eclipse.ui.IWorkbenchPart;
  23 import org.eclipse.ui.handlers.HandlerUtil;
  24
  25 import eu.etaxonomy.cdm.model.taxon.Taxon;
  26 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  27 import eu.etaxonomy.taxeditor.editor.Page;
  28 import eu.etaxonomy.taxeditor.editor.name.TaxonNameEditor;
  29 import eu.etaxonomy.taxeditor.editor.view.concept.operation.CreateConceptRelationOperation;
  30 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  31 import eu.etaxonomy.taxeditor.model.TaxonRelationshipTypeInverseContainer;
  32 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  33 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  34 import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonBaseSelectionDialog;
  35
  36 /**
  37  * <p>CreateConceptRelationHandler class.</p>
  38  *
  39  * @author n.hoffmann
  40  * @created 16.04.2009
  41  * @version 1.0
  42  */
  43 public class CreateConceptRelationHandler extends AbstractHandler {
  44
  45         /* (non-Javadoc)
  46          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  47          */
  48         /** {@inheritDoc} */
  49         public Object execute(ExecutionEvent event) throws ExecutionException {
  50                 TaxonNameEditor editor = (TaxonNameEditor) EditorUtil.getActiveEditorPage(
  51                                 Page.NAME);
  52
  53                 Taxon taxonToBeFiltered = editor.getTaxon();
  54
  55                 /* we need to get the activePart before calling TaxonBaseSelectionDialog.selectTaxon(), otherwise the
  56                  * the variable of the parent applicationContext in event are overwritten during this method call
  57                  * this is Linux specific bugfix see: #2685 ([LINUX] Editing concept relationships does not work under linux)
  58                  */
  59                 IWorkbenchPart activePart = HandlerUtil.getActivePart(event);
  60
  61                 Taxon relatedConcept = TaxonBaseSelectionDialog.selectTaxon(HandlerUtil.getActiveShell(event), editor.getConversationHolder(), taxonToBeFiltered);
  62
  63
  64                 if(relatedConcept == null){
  65                         return Status.CANCEL_STATUS;
  66                 }
  67
  68                 TaxonRelationshipTypeInverseContainer typeInverseContainer = (TaxonRelationshipTypeInverseContainer) ((Event)event.getTrigger()).data;
  69
  70
  71                 IPostOperationEnabled postOperationEnabled = (activePart instanceof IPostOperationEnabled) ? (IPostOperationEnabled) activePart : null;
  72
  73                 try {
  74                         AbstractPostOperation operation = new CreateConceptRelationOperation(event.getCommand().getName(),
  75                                         editor.getUndoContext(), editor.getTaxon(), relatedConcept, typeInverseContainer, postOperationEnabled);
  76                         EditorUtil.executeOperation(operation);
  77                 } catch (NotDefinedException e) {
  78                         MessagingUtils.warn(getClass(), "Command name not set");
  79                 }
  80
  81                 return null;
  82         }
  83 }