taxeditor-store/src/main/java/eu/etaxonomy/taxeditor/store/operations/DeleteDescriptionElementOperation.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.store.operations;
  11
  12 import org.apache.log4j.Logger;
  13 import org.eclipse.core.commands.ExecutionException;
  14 import org.eclipse.core.commands.operations.IUndoContext;
  15 import org.eclipse.core.runtime.IAdaptable;
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.IStatus;
  18
  19 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  20 import eu.etaxonomy.cdm.model.description.TaxonDescription;
  21 import eu.etaxonomy.cdm.model.taxon.Taxon;
  22
  23 /**
  24  * @author p.ciardelli
  25  * @created 05.02.2009
  26  * @version 1.0
  27  */
  28 public class DeleteDescriptionElementOperation extends AbstractPostOperation {
  29         private static final Logger logger = Logger
  30                         .getLogger(DeleteDescriptionElementOperation.class);
  31
  32         private DescriptionElementBase element;
  33         private TaxonDescription description = null;
  34
  35         public DeleteDescriptionElementOperation(String label, IUndoContext undoContext,
  36                         Taxon taxon, DescriptionElementBase element, IPostOperationEnabled postOperationEnabled) {
  37                 super(label, undoContext, taxon, postOperationEnabled);
  38
  39                 this.element = element;
  40         }
  41
  42         /* (non-Javadoc)
  43          * @see org.eclipse.core.commands.operations.AbstractOperation#execute(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  44          */
  45         @Override
  46         public IStatus execute(IProgressMonitor monitor, IAdaptable info)
  47                         throws ExecutionException {
  48
  49                 // Find description to which element belongs
  50                 for (TaxonDescription descr : taxon.getDescriptions()) {
  51                         for (DescriptionElementBase elem : descr.getElements()) {
  52                                 if (elem.equals(element)) {
  53                                         description = descr;
  54                                         break;
  55                                 }
  56                         }
  57                 }
  58
  59                 // Remove element from description
  60                 if (description == null) {
  61                         logger.error("Couldn't find element's description!");
  62                 } else {
  63                         description.removeElement(element);
  64                 }
  65
  66                 // Redraw editor if exists
  67                 return postExecute(null);
  68         }
  69
  70         /* (non-Javadoc)
  71          * @see org.eclipse.core.commands.operations.AbstractOperation#redo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  72          */
  73         @Override
  74         public IStatus redo(IProgressMonitor monitor, IAdaptable info)
  75                         throws ExecutionException {
  76                 return execute(monitor, info);
  77         }
  78
  79         /* (non-Javadoc)
  80          * @see org.eclipse.core.commands.operations.AbstractOperation#undo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  81          */
  82         @Override
  83         public IStatus undo(IProgressMonitor monitor, IAdaptable info)
  84                         throws ExecutionException {
  85
  86                 description.addElement(element);
  87
  88                 return postExecute(element);
  89         }
  90 }