eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/derivate/handler/CreateFieldUnitHandler.java

   1
   2 package eu.etaxonomy.taxeditor.editor.view.derivate.handler;
   3
   4 import javax.inject.Named;
   5
   6 import org.eclipse.e4.core.di.annotations.CanExecute;
   7 import org.eclipse.e4.core.di.annotations.Execute;
   8 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
   9 import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
  10 import org.eclipse.e4.ui.services.IServiceConstants;
  11
  12 import eu.etaxonomy.cdm.api.service.IOccurrenceService;
  13 import eu.etaxonomy.cdm.api.service.ITaxonService;
  14 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  15 import eu.etaxonomy.cdm.model.common.CdmBase;
  16 import eu.etaxonomy.cdm.model.description.IndividualsAssociation;
  17 import eu.etaxonomy.cdm.model.description.TaxonDescription;
  18 import eu.etaxonomy.cdm.model.occurrence.FieldUnit;
  19 import eu.etaxonomy.cdm.model.taxon.Taxon;
  20 import eu.etaxonomy.taxeditor.editor.AppModelId;
  21 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  22 import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateView;
  23 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  24 import eu.etaxonomy.taxeditor.store.CdmStore;
  25
  26 public class CreateFieldUnitHandler {
  27
  28         @Execute
  29         public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part, MHandledMenuItem item) {
  30         DerivateView derivateView = (DerivateView) part.getObject();
  31         if(item.getElementId().equals(AppModelId.HANDLEDMENUITEM_EU_ETAXONOMY_TAXEDITOR_EDITOR_HANDLEDMENUITEM_CREATE_FIELD_UNIT_FOR_TAXON)){
  32             Object selectionInput = derivateView.getSelectionInput();
  33             if(selectionInput instanceof CdmBase && ((CdmBase) selectionInput).isInstanceOf(Taxon.class)){
  34                 final Taxon taxon = HibernateProxyHelper.deproxy(CdmStore.getService(ITaxonService.class).load(((CdmBase)selectionInput).getUuid()), Taxon.class);
  35                 if(derivateView.isDirty()){
  36                     MessagingUtils.warningDialog(DerivateView.VIEW_HAS_UNSAVED_CHANGES, this, DerivateView.YOU_NEED_TO_SAVE_BEFORE_PERFORMING_THIS_ACTION);
  37                     return;
  38                 }
  39
  40                 FieldUnit fieldUnit = FieldUnit.NewInstance();
  41                 fieldUnit = CdmBase.deproxy(CdmStore.getService(IOccurrenceService.class).save(fieldUnit), FieldUnit.class);
  42                 IndividualsAssociation association = IndividualsAssociation.NewInstance(fieldUnit);
  43                 TaxonDescription description;
  44                 if(!taxon.getDescriptions().isEmpty()){
  45                     description = taxon.getDescriptions().iterator().next();
  46                 }
  47                 else{
  48                     description = TaxonDescription.NewInstance(taxon);
  49                 }
  50                 description.addElement(association);
  51                 CdmStore.getService(ITaxonService.class).merge(taxon);
  52
  53
  54                 derivateView.getConversationHolder().commit();
  55                 derivateView.addFieldUnit(fieldUnit);
  56                 derivateView.refreshTree(fieldUnit);
  57             }
  58         }
  59         else{
  60             if(derivateView.isDirty()){
  61                 MessagingUtils.warningDialog(DerivateView.VIEW_HAS_UNSAVED_CHANGES, this, DerivateView.YOU_NEED_TO_SAVE_BEFORE_PERFORMING_THIS_ACTION);
  62                 return;
  63             }
  64             FieldUnit fieldUnit = FieldUnit.NewInstance();
  65             fieldUnit = CdmBase.deproxy(CdmStore.getService(IOccurrenceService.class).save(fieldUnit), FieldUnit.class);
  66             derivateView.getConversationHolder().commit();
  67             derivateView.addFieldUnit(fieldUnit);
  68             derivateView.updateRootEntities();
  69             derivateView.refreshTree(fieldUnit);
  70         }
  71         }
  72
  73
  74         @CanExecute
  75         public boolean canExecute(@Named(IServiceConstants.ACTIVE_PART) MPart part, MHandledMenuItem item) {
  76             DerivateView derivateView = (DerivateView) part.getObject();
  77             boolean listenToSelectionChange = derivateView.isListenToSelectionChange();
  78             setItemVisibility(item, listenToSelectionChange);
  79             if(listenToSelectionChange &&
  80                     item.getElementId().equals(AppModelId.HANDLEDMENUITEM_EU_ETAXONOMY_TAXEDITOR_EDITOR_HANDLEDMENUITEM_CREATE_FIELD_UNIT_FOR_TAXON)){
  81                 Object selectionInput = derivateView.getSelectionInput();
  82                 if(selectionInput instanceof CdmBase && ((CdmBase) selectionInput).isInstanceOf(Taxon.class)){
  83                     final Taxon taxon = HibernateProxyHelper.deproxy(CdmStore.getService(ITaxonService.class).load(((CdmBase)selectionInput).getUuid()), Taxon.class);
  84                     item.setLabel(String.format(Messages.CreateFieldUnitContextMenu_CREATE_FIELD_UNIT_FOR, taxon.getName()));
  85                 }
  86             }
  87             return true;
  88         }
  89
  90
  91     private void setItemVisibility(MHandledMenuItem item, boolean isListeningToSelectionChange) {
  92         if(item.getElementId().equals(AppModelId.HANDLEDMENUITEM_EU_ETAXONOMY_TAXEDITOR_EDITOR_HANDLEDMENUITEM_CREATEFIELDUNIT)){
  93             item.setVisible(!isListeningToSelectionChange);
  94         }
  95         else{
  96             item.setVisible(isListeningToSelectionChange);
  97         }
  98     }
  99
 100 }