taxeditor-store/src/main/java/eu/etaxonomy/taxeditor/operations/DeleteConceptRelationOperation.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 java.util.Set;
  13
  14 import org.eclipse.core.commands.ExecutionException;
  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
  20 import eu.etaxonomy.cdm.model.reference.Reference;
  21 import eu.etaxonomy.cdm.model.taxon.Taxon;
  22 import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
  23 import eu.etaxonomy.cdm.model.taxon.TaxonRelationshipType;
  24 import eu.etaxonomy.taxeditor.store.StoreUtil;
  25
  26 /**
  27  * Deletes a relation between two taxa.
  28  *
  29  * TODO we assume that there is only one kind of relation between two taxa.
  30  * If there are more, this operation breaks
  31  *
  32  * @author p.ciardelli
  33  * @author n.hoffmann
  34  * @created 29.01.2009
  35  * @version 1.0
  36  */
  37 public class DeleteConceptRelationOperation extends AbstractPostOperation {
  38
  39         private Taxon relatedTaxon;
  40         private TaxonRelationshipType relationshipType;
  41         private Reference<?> citation;
  42         private String microcitation;
  43         private TaxonRelationship taxonRelationship;
  44
  45         /**
  46          * <p>Constructor for DeleteConceptRelationOperation.</p>
  47          *
  48          * @param label a {@link java.lang.String} object.
  49          * @param undoContext a {@link org.eclipse.core.commands.operations.IUndoContext} object.
  50          * @param taxon a {@link eu.etaxonomy.cdm.model.taxon.Taxon} object.
  51          * @param relatedTaxon a {@link eu.etaxonomy.cdm.model.taxon.Taxon} object.
  52          * @param postOperationEnabled a {@link eu.etaxonomy.taxeditor.operations.IPostOperationEnabled} object.
  53          */
  54         public DeleteConceptRelationOperation(String label,
  55                         IUndoContext undoContext, Taxon taxon, Taxon relatedTaxon,
  56                         IPostOperationEnabled postOperationEnabled) {
  57                 super(label, undoContext, taxon, postOperationEnabled);
  58
  59                 this.relatedTaxon = relatedTaxon;
  60
  61                 Set<TaxonRelationship> taxonRelationships = taxon.getTaxonRelations(relatedTaxon);
  62
  63                 if(taxonRelationships.size() > 1){
  64                         StoreUtil.warningDialog("Multiple relations between taxa", this, "There are multiple relations between the " +
  65                                         "accepted and the related taxon. This case is not handled by the software yet");
  66                         return;
  67                 }
  68
  69                 taxonRelationship = taxonRelationships.iterator().next();
  70
  71                 relationshipType = taxonRelationship.getType();
  72
  73                 citation = taxonRelationship.getCitation();
  74                 microcitation = taxonRelationship.getCitationMicroReference();
  75         }
  76
  77         /* (non-Javadoc)
  78          * @see org.eclipse.core.commands.operations.AbstractOperation#execute(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  79          */
  80         /** {@inheritDoc} */
  81         @Override
  82         public IStatus execute(IProgressMonitor monitor, IAdaptable info)
  83                         throws ExecutionException {
  84
  85                 // Find relation, save citation information
  86                 for (TaxonRelationship relationship : taxon.getTaxonRelations()) {
  87                         if (relationship.getType().equals(relationshipType)
  88                                         && relationship.getFromTaxon().equals(relatedTaxon)) {
  89                                 citation = relationship.getCitation();
  90                                 microcitation = relationship.getCitationMicroReference();
  91                                 taxonRelationship = relationship;
  92                         }
  93                 }
  94                 monitor.worked(20);
  95
  96                 // Remove relation from taxon
  97                 taxon.removeTaxonRelation(taxonRelationship);
  98                 monitor.worked(40);
  99
 100                 return postExecute(taxon);
 101         }
 102
 103         /* (non-Javadoc)
 104          * @see org.eclipse.core.commands.operations.AbstractOperation#redo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
 105          */
 106         /** {@inheritDoc} */
 107         @Override
 108         public IStatus redo(IProgressMonitor monitor, IAdaptable info)
 109                         throws ExecutionException {
 110                 return execute(monitor, info);
 111         }
 112
 113         /* (non-Javadoc)
 114          * @see org.eclipse.core.commands.operations.AbstractOperation#undo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
 115          */
 116         /** {@inheritDoc} */
 117         @Override
 118         public IStatus undo(IProgressMonitor monitor, IAdaptable info)
 119                         throws ExecutionException {
 120
 121 //              relatedTaxon.addTaxonRelation(relationship); // don't do nothin'
 122                 taxon.addTaxonRelation(relatedTaxon, relationshipType, citation, microcitation);
 123
 124                 return postExecute(relatedTaxon);
 125         }
 126 }