eu.etaxonomy.taxeditor.bulkeditor/src/main/java/eu/etaxonomy/taxeditor/bulkeditor/handler/MergeGroupHandler.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 package eu.etaxonomy.taxeditor.bulkeditor.handler;
  10
  11 import java.util.Set;
  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.jface.dialogs.MessageDialog;
  18 import org.eclipse.jface.text.source.Annotation;
  19 import org.eclipse.ui.IEditorInput;
  20 import org.eclipse.ui.IEditorPart;
  21 import org.eclipse.ui.handlers.HandlerUtil;
  22 import org.eclipse.ui.texteditor.IDocumentProvider;
  23
  24 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  25 import eu.etaxonomy.cdm.model.agent.TeamOrPersonBase;
  26 import eu.etaxonomy.cdm.model.reference.Reference;
  27 import eu.etaxonomy.cdm.strategy.merge.MergeException;
  28 import eu.etaxonomy.taxeditor.annotatedlineeditor.IEntityContainer;
  29 import eu.etaxonomy.taxeditor.annotatedlineeditor.LineAnnotation;
  30 import eu.etaxonomy.taxeditor.annotatedlineeditor.LineAnnotationModel;
  31 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  32 import eu.etaxonomy.taxeditor.bulkeditor.IBulkEditorConstants;
  33 import eu.etaxonomy.taxeditor.bulkeditor.input.AbstractBulkEditorInput;
  34 import eu.etaxonomy.taxeditor.store.CdmStore;
  35
  36 /**
  37  * <p>MergeGroupHandler class.</p>
  38  *
  39  * @author p.ciardelli
  40  * @created 25.06.2009
  41  * @version 1.0
  42  */
  43 public class MergeGroupHandler extends AbstractHandler {
  44         private static final Logger logger = Logger
  45                         .getLogger(MergeGroupHandler.class);
  46
  47         /* (non-Javadoc)
  48          * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  49          */
  50         /** {@inheritDoc} */
  51         public Object execute(ExecutionEvent event) throws ExecutionException {
  52
  53                 IEditorPart editor = HandlerUtil.getActiveEditor(event);
  54                 IEditorInput input = editor.getEditorInput();
  55                 if (editor instanceof BulkEditor && input instanceof AbstractBulkEditorInput) {
  56
  57                         IDocumentProvider provider = ((BulkEditor) editor).getDocumentProvider();
  58                         LineAnnotationModel model =
  59                                         (LineAnnotationModel) provider.getAnnotationModel(input);
  60
  61                         // Check whether there are any group annotations
  62                         Set<LineAnnotation> candidateAnnotations = model.getAllAnnotationsOfType(IBulkEditorConstants.TYPE_MERGE_CANDIDATE);
  63                         if (candidateAnnotations.size() == 0) {
  64                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
  65                                                 "No merge candidates", "No objects have been chosen for merging.");
  66                                 return null;
  67                         }
  68
  69                         // Check whether group merge target has been set
  70                         Annotation targetAnnotation = model.getFirstAnnotationOfType(IBulkEditorConstants.TYPE_MERGE_TARGET);
  71                         if (targetAnnotation == null) {
  72                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
  73                                                 "No group merge target set", "No group merge target has been set.");
  74                                 return null;
  75                         }
  76                         Object targetEntity = ((IEntityContainer<?>) targetAnnotation).getEntity();
  77
  78                         TeamOrPersonBase teamOrPerson = null;
  79                         Reference ref = null;
  80                         if (targetEntity instanceof TeamOrPersonBase){
  81                                 teamOrPerson = HibernateProxyHelper.deproxy(targetEntity, TeamOrPersonBase.class);
  82                         } else if(targetEntity instanceof Reference){
  83                                 ref = HibernateProxyHelper.deproxy(targetEntity, Reference.class);
  84                         }
  85                         logger.info("Merging group");
  86 //                      model.printAnnotations();
  87                         for (LineAnnotation annotation : candidateAnnotations) {
  88                                 //first check whether entities are mergeable
  89
  90
  91                         try{
  92                                 if (ref != null){
  93                                         Reference ref2 = HibernateProxyHelper.deproxy(annotation.getEntity(), Reference.class);
  94
  95                                         if (!CdmStore.getCommonService().isMergeable(ref, ref2, null)){
  96                                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
  97                                                                 "No merge possible", "A merge of " + ref.getTitleCache() + " and " + ref2.getTitleCache() + " is not possible.");
  98                                                 return null;
  99                                         }
 100                                 }
 101                                 if (teamOrPerson != null){
 102                                         TeamOrPersonBase teamOrPerson2 = HibernateProxyHelper.deproxy(annotation.getEntity(), TeamOrPersonBase.class);
 103
 104                                         if (!CdmStore.getCommonService().isMergeable(teamOrPerson, teamOrPerson2, null)){
 105                                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
 106                                                                 "No merge possible", "A merge of " + teamOrPerson.getTitleCache() + " and " + teamOrPerson2.getTitleCache() + " is not possible.");
 107                                                 return null;
 108                                         }
 109                                 }
 110                         }catch(MergeException e){
 111
 112                         }
 113                                 ((BulkEditor) editor).removeAnnotatedLine(annotation);
 114
 115                                 // Mark entity container for merging with target entity
 116                                 ((IEntityContainer) annotation).markAsMerged(targetEntity);
 117                                 logger.info("Merging " + annotation + " with " + targetAnnotation);
 118
 119                                 // Remove annotation from model
 120                                 model.removeAnnotation(annotation);
 121                         }
 122 //                      model.printAnnotations();
 123
 124                         model.removeTypeFromAllAnnotations(IBulkEditorConstants.TYPE_MERGE_CANDIDATE);
 125                         model.removeTypeFromAllAnnotations(IBulkEditorConstants.TYPE_MERGE_TARGET);
 126                 }
 127                 return null;
 128         }
 129 }