taxeditor-store/src/main/java/eu/etaxonomy/taxeditor/store/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.store.operations;
  11
  12 import org.eclipse.core.commands.ExecutionException;
  13 import org.eclipse.core.commands.operations.IUndoContext;
  14 import org.eclipse.core.runtime.IAdaptable;
  15 import org.eclipse.core.runtime.IProgressMonitor;
  16 import org.eclipse.core.runtime.IStatus;
  17
  18 import eu.etaxonomy.cdm.model.reference.ReferenceBase;
  19 import eu.etaxonomy.cdm.model.taxon.Taxon;
  20 import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
  21 import eu.etaxonomy.cdm.model.taxon.TaxonRelationshipType;
  22 import eu.etaxonomy.taxeditor.store.model.TaxonUtil;
  23
  24 /**
  25  * Deletes a relation between two taxa.
  26  *
  27  * TODO we assume that there is only one kind of relation between two taxa.
  28  * If there are more, this operation breaks
  29  *
  30  * @author p.ciardelli
  31  * @author n.hoffmann
  32  * @created 29.01.2009
  33  * @version 1.0
  34  */
  35 public class DeleteConceptRelationOperation extends AbstractPostOperation {
  36
  37         private Taxon relatedTaxon;
  38         private TaxonRelationshipType relationshipType;
  39         private ReferenceBase<?> citation;
  40         private String microcitation;
  41         private TaxonRelationship relationship;
  42
  43         public DeleteConceptRelationOperation(String label,
  44                         IUndoContext undoContext, Taxon taxon, Taxon relatedTaxon,
  45                         IPostOperationEnabled postOperationEnabled) {
  46                 super(label, undoContext, taxon, postOperationEnabled);
  47
  48                 this.relatedTaxon = relatedTaxon;
  49
  50                 relationship = TaxonUtil.getRelationshipBetweenTwoTaxa(relatedTaxon, taxon);
  51
  52                 relationshipType = relationship.getType();
  53
  54                 citation = relationship.getCitation();
  55                 microcitation = relationship.getCitationMicroReference();
  56         }
  57
  58         /* (non-Javadoc)
  59          * @see org.eclipse.core.commands.operations.AbstractOperation#execute(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  60          */
  61         @Override
  62         public IStatus execute(IProgressMonitor monitor, IAdaptable info)
  63                         throws ExecutionException {
  64
  65                 // Find relation, save citation information
  66                 for (TaxonRelationship relationship : taxon.getTaxonRelations()) {
  67                         if (relationship.getType().equals(relationshipType)
  68                                         && relationship.getFromTaxon().equals(relatedTaxon)) {
  69                                 citation = relationship.getCitation();
  70                                 microcitation = relationship.getCitationMicroReference();
  71                                 this.relationship = relationship;
  72                         }
  73                 }
  74
  75                 // Remove relation from taxon
  76                 taxon.removeTaxonRelation(relationship);
  77
  78                 return postExecute(taxon);
  79         }
  80
  81         /* (non-Javadoc)
  82          * @see org.eclipse.core.commands.operations.AbstractOperation#redo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  83          */
  84         @Override
  85         public IStatus redo(IProgressMonitor monitor, IAdaptable info)
  86                         throws ExecutionException {
  87                 return execute(monitor, info);
  88         }
  89
  90         /* (non-Javadoc)
  91          * @see org.eclipse.core.commands.operations.AbstractOperation#undo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
  92          */
  93         @Override
  94         public IStatus undo(IProgressMonitor monitor, IAdaptable info)
  95                         throws ExecutionException {
  96
  97 //              relatedTaxon.addTaxonRelation(relationship); // don't do nothin'
  98                 taxon.addTaxonRelation(relatedTaxon, relationshipType, citation, microcitation);
  99
 100                 return postExecute(relatedTaxon);
 101         }
 102 }