taxeditor-editor/src/main/java/eu/etaxonomy/taxeditor/editor/description/handler/CreateDescriptionElementHandler.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.description.handler;
  12
  13 import org.apache.log4j.Logger;
  14 import org.eclipse.core.commands.AbstractHandler;
  15 import org.eclipse.core.commands.ExecutionEvent;
  16 import org.eclipse.core.commands.ExecutionException;
  17 import org.eclipse.core.commands.common.NotDefinedException;
  18 import org.eclipse.core.commands.operations.IUndoableOperation;
  19 import org.eclipse.core.runtime.IStatus;
  20 import org.eclipse.core.runtime.Status;
  21 import org.eclipse.swt.widgets.Event;
  22
  23 import eu.etaxonomy.cdm.model.common.Language;
  24 import eu.etaxonomy.cdm.model.description.CommonTaxonName;
  25 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  26 import eu.etaxonomy.cdm.model.description.Feature;
  27 import eu.etaxonomy.cdm.model.description.TaxonDescription;
  28 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  29 import eu.etaxonomy.taxeditor.editor.Page;
  30 import eu.etaxonomy.taxeditor.editor.description.DescriptionLabelComposite;
  31 import eu.etaxonomy.taxeditor.editor.description.DistributionDialog;
  32 import eu.etaxonomy.taxeditor.editor.description.LanguageDialog;
  33 import eu.etaxonomy.taxeditor.editor.description.TaxonDescriptionEditor;
  34 import eu.etaxonomy.taxeditor.store.operations.CreateDescriptionElementOperation;
  35
  36 /**
  37  * @author n.hoffmann
  38  * @created 16.04.2009
  39  * @version 1.0
  40  */
  41 public class CreateDescriptionElementHandler extends AbstractHandler {
  42         private static final Logger logger = Logger
  43                         .getLogger(CreateDescriptionElementHandler.class);
  44
  45         private DescriptionElementBase element;
  46
  47         /* (non-Javadoc)
  48          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  49          */
  50         public Object execute(ExecutionEvent event) throws ExecutionException {
  51                 TaxonDescriptionEditor editor = (TaxonDescriptionEditor) EditorUtil.getActiveEditorPage(
  52                                 Page.DESCRIPTIVE);
  53
  54                 Feature feature = (Feature) ((Event)event.getTrigger()).data;
  55
  56                 // FIXME right now we have only one description per taxon
  57                 // this will change in the future and then attaching the feature to
  58                 // the firstGroupedComposite will not work anymore
  59                 TaxonDescription description = ((DescriptionLabelComposite)editor.getFirstGroupedComposite()).getDescription();
  60
  61                 if (getElementUserInput(feature).equals(Status.OK_STATUS)) {
  62                         IUndoableOperation operation;
  63                         try {
  64                                 operation = new CreateDescriptionElementOperation(event.getCommand().getName(),
  65                                                 editor.getUndoContext(), editor.getTaxon(), description, feature, element, editor);
  66                                 EditorUtil.executeOperation(operation);
  67                         } catch (NotDefinedException e) {
  68                                 logger.warn("Command name not set");
  69                         }
  70                 }
  71                 return null;
  72         }
  73
  74         /**
  75          * Some element types require input via the UI - initialize these here
  76          *
  77          * @param feature
  78          * @return
  79          */
  80         private IStatus getElementUserInput(Feature feature) {
  81
  82                 // Remove object from last execution from element
  83                 element = null;
  84
  85                 // -------------- Common name --------------  //
  86                 if (feature.supportsCommonTaxonName()) {
  87                         Language language = LanguageDialog.getLanguage
  88                                         ("Select language", "Select the common name's language:");
  89                         if (language == null) {
  90                                 return Status.CANCEL_STATUS;
  91                         }
  92                         element = CommonTaxonName.NewInstance("", language);
  93                         // Feature must be explicitly set to sync w term in persistence layer
  94                         element.setFeature(feature);
  95                 }
  96
  97                 // -------------- Distribution -------------- //
  98                 if (feature.supportsDistribution()) {
  99                         element = DistributionDialog.getDistribution
 100                                         ("Create distribution", null);
 101                         if (element == null) {
 102                                 return Status.CANCEL_STATUS;
 103                         }
 104                         // Feature must be explicitly set to sync w term in persistence layer
 105                         element.setFeature(feature);
 106                 }
 107
 108                 return Status.OK_STATUS;
 109         }
 110 }