eclipseprojects/eu.etaxonomy.taxeditor/src/eu/etaxonomy/taxeditor/operations/DeleteTaxonOperation.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.operations;
  11
  12 import org.apache.log4j.Logger;
  13 import org.eclipse.core.commands.ExecutionException;
  14 import org.eclipse.core.commands.operations.AbstractOperation;
  15 import org.eclipse.core.commands.operations.IUndoContext;
  16 import org.eclipse.core.runtime.IAdaptable;
  17 import org.eclipse.core.runtime.IProgressMonitor;
  18 import org.eclipse.core.runtime.IStatus;
  19 import org.eclipse.core.runtime.Status;
  20 import org.eclipse.jface.dialogs.MessageDialog;
  21 import org.eclipse.ui.PartInitException;
  22
  23 import eu.etaxonomy.cdm.model.taxon.Taxon;
  24 import eu.etaxonomy.taxeditor.UiUtil;
  25 import eu.etaxonomy.taxeditor.model.CdmSessionDataRepository;
  26
  27 /**
  28  * @author n.hoffmann
  29  * @created 16.01.2009
  30  * @version 1.0
  31  */
  32 public class DeleteTaxonOperation extends AbstractEditorOperation {
  33         private static Logger logger = Logger.getLogger(DeleteTaxonOperation.class);
  34
  35         private Taxon parentTaxon;
  36         public DeleteTaxonOperation(String text, IUndoContext undoContext,
  37                         Taxon taxon) {
  38                 super(text, undoContext, taxon);
  39
  40                 parentTaxon = taxon.getTaxonomicParent();
  41         }
  42
  43         /* (non-Javadoc)
  44          * @see org.eclipse.core.commands.operations.AbstractOperation#execute(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  45          */
  46         @Override
  47         public IStatus execute(IProgressMonitor monitor, IAdaptable info)
  48                         throws ExecutionException {
  49
  50                 // TODO move this logic to another place
  51
  52                 // Get taxon name
  53                 String taxonName = taxon.getName().getTitleCache();
  54
  55                 // Prompt user for confirmation
  56                 if(! MessageDialog.openConfirm(UiUtil.getShell(), "Confirm Deletion", "Are you sure you want to delete taxon '" + taxonName + "'?")){
  57                         monitor.done();
  58                         return Status.CANCEL_STATUS;
  59                 }
  60
  61                 // Get and start progress monitor
  62                 monitor.beginTask("Deleting taxon '" + taxonName + "'.", 10);
  63
  64                 // Call save all
  65                 UiUtil.saveAll();
  66                 monitor.worked(2);
  67
  68                 // If the taxon has children, cancel operation
  69                 // TODO add option to continue, and delete children
  70                 if (taxon.hasTaxonomicChildren()) {
  71                         MessageDialog.openInformation(UiUtil.getShell(), "Cannot delete taxon",
  72                                         "'" + taxonName + "' has taxonomic children. " +
  73                                         "These must be manually deleted before their parent.");
  74                         monitor.done();
  75                         return Status.CANCEL_STATUS;
  76                 }
  77                 monitor.worked(1);
  78
  79
  80                 // Close taxon's editor, if any is active
  81                 try {
  82                         UiUtil.closeEditor(taxon, true);
  83                 } catch (PartInitException e) {
  84                         e.printStackTrace();
  85                 }
  86                 monitor.worked(1);
  87
  88                 // Delete taxon from CDM layer
  89                 CdmSessionDataRepository.getDefault().removeTaxon(taxon);
  90                 monitor.worked(4);
  91
  92                 // Call save all
  93                 UiUtil.saveAll();
  94                 monitor.worked(2);
  95
  96                 // Close the progress monitor
  97                 monitor.done();
  98
  99                 // Announce taxon was deleted on status line
 100                 UiUtil.setStatusLine("Deleted taxon '" + taxonName + "'.");
 101
 102                 return Status.OK_STATUS;
 103         }
 104
 105         /* (non-Javadoc)
 106          * @see org.eclipse.core.commands.operations.AbstractOperation#redo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
 107          */
 108         @Override
 109         public IStatus redo(IProgressMonitor monitor, IAdaptable info)
 110                         throws ExecutionException {
 111                 return execute(monitor, info);
 112         }
 113
 114         /* (non-Javadoc)
 115          * @see org.eclipse.core.commands.operations.AbstractOperation#undo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
 116          */
 117         @Override
 118         public IStatus undo(IProgressMonitor monitor, IAdaptable info)
 119                         throws ExecutionException {
 120                 // FIXME we have to add old citation
 121                 parentTaxon.addTaxonomicChild(taxon, null, null);
 122                 CdmSessionDataRepository.getDefault().addTaxon(taxon);
 123                 return Status.OK_STATUS;
 124         }
 125 }