eu.etaxonomy.taxeditor.bulkeditor/src/main/java/eu/etaxonomy/taxeditor/bulkeditor/handler/MergeGroupHandler.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.bulkeditor.handler;
  11
  12 import java.util.Set;
  13
  14 import org.apache.log4j.Logger;
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.jface.dialogs.MessageDialog;
  19 import org.eclipse.jface.text.source.Annotation;
  20 import org.eclipse.ui.IEditorInput;
  21 import org.eclipse.ui.IEditorPart;
  22 import org.eclipse.ui.handlers.HandlerUtil;
  23 import org.eclipse.ui.texteditor.IDocumentProvider;
  24
  25 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  26 import eu.etaxonomy.cdm.model.agent.TeamOrPersonBase;
  27 import eu.etaxonomy.cdm.model.reference.Reference;
  28 import eu.etaxonomy.cdm.strategy.merge.MergeException;
  29 import eu.etaxonomy.taxeditor.annotatedlineeditor.IEntityContainer;
  30 import eu.etaxonomy.taxeditor.annotatedlineeditor.LineAnnotation;
  31 import eu.etaxonomy.taxeditor.annotatedlineeditor.LineAnnotationModel;
  32 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  33 import eu.etaxonomy.taxeditor.bulkeditor.IBulkEditorConstants;
  34 import eu.etaxonomy.taxeditor.bulkeditor.input.AbstractBulkEditorInput;
  35 import eu.etaxonomy.taxeditor.store.CdmStore;
  36
  37 /**
  38  * <p>MergeGroupHandler class.</p>
  39  *
  40  * @author p.ciardelli
  41  * @created 25.06.2009
  42  * @version 1.0
  43  */
  44 public class MergeGroupHandler extends AbstractHandler {
  45         private static final Logger logger = Logger
  46                         .getLogger(MergeGroupHandler.class);
  47
  48         /* (non-Javadoc)
  49          * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  50          */
  51         /** {@inheritDoc} */
  52         public Object execute(ExecutionEvent event) throws ExecutionException {
  53
  54                 IEditorPart editor = HandlerUtil.getActiveEditor(event);
  55                 IEditorInput input = editor.getEditorInput();
  56                 if (editor instanceof BulkEditor && input instanceof AbstractBulkEditorInput) {
  57
  58                         IDocumentProvider provider = ((BulkEditor) editor).getDocumentProvider();
  59                         LineAnnotationModel model =
  60                                         (LineAnnotationModel) provider.getAnnotationModel(input);
  61
  62                         // Check whether there are any group annotations
  63                         Set<LineAnnotation> candidateAnnotations = model.getAllAnnotationsOfType(IBulkEditorConstants.TYPE_MERGE_CANDIDATE);
  64                         if (candidateAnnotations.size() == 0) {
  65                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
  66                                                 "No merge candidates", "No objects have been chosen for merging.");
  67                                 return null;
  68                         }
  69
  70                         // Check whether group merge target has been set
  71                         Annotation targetAnnotation = model.getFirstAnnotationOfType(IBulkEditorConstants.TYPE_MERGE_TARGET);
  72                         if (targetAnnotation == null) {
  73                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
  74                                                 "No group merge target set", "No group merge target has been set.");
  75                                 return null;
  76                         }
  77                         Object targetEntity = ((IEntityContainer<?>) targetAnnotation).getEntity();
  78
  79                         TeamOrPersonBase teamOrPerson = null;
  80                         Reference ref = null;
  81                         if (targetEntity instanceof TeamOrPersonBase){
  82                                 teamOrPerson = HibernateProxyHelper.deproxy(targetEntity, TeamOrPersonBase.class);
  83                         } else if(targetEntity instanceof Reference){
  84                                 ref = HibernateProxyHelper.deproxy(targetEntity, Reference.class);
  85                         }
  86                         logger.info("Merging group");
  87 //                      model.printAnnotations();
  88                         for (LineAnnotation annotation : candidateAnnotations) {
  89                                 //first check whether entities are mergeable
  90
  91
  92                         try{
  93                                 if (ref != null){
  94                                         Reference ref2 = HibernateProxyHelper.deproxy(annotation.getEntity(), Reference.class);
  95
  96                                         if (!CdmStore.getCommonService().isMergeable(ref, ref2, null)){
  97                                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
  98                                                                 "No merge possible", "A merge of " + ref.getTitleCache() + " and " + ref2.getTitleCache() + " is not possible.");
  99                                                 return null;
 100                                         }
 101                                 }
 102                                 if (teamOrPerson != null){
 103                                         TeamOrPersonBase teamOrPerson2 = HibernateProxyHelper.deproxy(annotation.getEntity(), TeamOrPersonBase.class);
 104
 105                                         if (!CdmStore.getCommonService().isMergeable(teamOrPerson, teamOrPerson2, null)){
 106                                                 MessageDialog.openWarning(HandlerUtil.getActiveShell(event),
 107                                                                 "No merge possible", "A merge of " + teamOrPerson.getTitleCache() + " and " + teamOrPerson2.getTitleCache() + " is not possible.");
 108                                                 return null;
 109                                         }
 110                                 }
 111                         }catch(MergeException e){
 112
 113                         }
 114                                 ((BulkEditor) editor).removeAnnotatedLine(annotation);
 115
 116                                 // Mark entity container for merging with target entity
 117                                 ((IEntityContainer) annotation).markAsMerged(targetEntity);
 118                                 logger.info("Merging " + annotation + " with " + targetAnnotation);
 119
 120                                 // Remove annotation from model
 121                                 model.removeAnnotation(annotation);
 122                         }
 123 //                      model.printAnnotations();
 124
 125                         model.removeTypeFromAllAnnotations(IBulkEditorConstants.TYPE_MERGE_CANDIDATE);
 126                         model.removeTypeFromAllAnnotations(IBulkEditorConstants.TYPE_MERGE_TARGET);
 127                 }
 128                 return null;
 129         }
 130 }