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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.view.descriptive.e4.handler;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import javax.inject.Named;
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import org.eclipse.core.commands.operations.IUndoContext;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.core.di.annotations.Optional;
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import org.eclipse.e4.ui.di.UISynchronize;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.model.application.ui.menu.MMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.TreeViewer;
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import org.eclipse.swt.widgets.Shell;
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import eu.etaxonomy.cdm.api.service.DeleteResult;
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import eu.etaxonomy.cdm.api.service.IDescriptionService;
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import eu.etaxonomy.cdm.api.service.UpdateResult.Status;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.SpecimenDescription;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.description.TaxonNameDescription;
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import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
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import eu.etaxonomy.taxeditor.bulkeditor.e4.BulkEditorE4;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.name.e4.TaxonNameEditorE4;
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import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateView;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteDescriptionElementOperation;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteSpecimenDescriptionOperation;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteTaxonDescriptionOperation;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteTaxonNameDescriptionOperation;
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import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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*
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* @author pplitzner
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* @date 15.08.2017
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*
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*/
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public class DeleteHandlerE4 {
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@Execute
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public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart,
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@Named(IServiceConstants.ACTIVE_SHELL)Shell shell, MMenuItem menuItem,
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UISynchronize sync) {
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FactualDataPartE4 factualDataPart = (FactualDataPartE4) activePart.getObject();
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IStructuredSelection selection = (IStructuredSelection) factualDataPart.getViewer().getSelection();
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Object selectionProvidingPart = factualDataPart.getSelectionProvidingPart();
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ICdmEntitySessionEnabled cdmEntitySessionEnabled = null;
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if(selectionProvidingPart instanceof ICdmEntitySessionEnabled){
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cdmEntitySessionEnabled = (ICdmEntitySessionEnabled) selectionProvidingPart;
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}
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TreeViewer viewer = (TreeViewer)factualDataPart.getViewer();
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Object[] expandedElements = viewer.getExpandedElements();
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String label = menuItem.getLocalizedLabel();
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IUndoContext undoContext = EditorUtil.getUndoContext();
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List<AbstractPostOperation> operations = new ArrayList();
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AbstractPostOperation operation = null;
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for(Iterator iter = selection.iterator();iter.hasNext();){
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Object object = iter.next();
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if (object == null){
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continue;
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}
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DescriptionBase description = null;
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SpecimenOrObservationBase specimen = null;
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DeleteResult result = new DeleteResult();
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if (object instanceof DescriptionBase){
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result = CdmStore.getService(IDescriptionService.class).isDeletable(((DescriptionBase) object).getUuid());
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description = (DescriptionBase) object;
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} else if (object instanceof DescriptionElementBase){
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description = ((DescriptionElementBase)object).getInDescription();
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}
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if (result.getStatus().equals(Status.OK)){
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List<Object> expandedElementsList = new ArrayList<>();
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for (Object o: expandedElements){
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if(!o.equals(object)){
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expandedElementsList.add(o);
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}
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}
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expandedElements = expandedElementsList.toArray();
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// TaxonDescription
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if(object instanceof TaxonDescription ){
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operation = new DeleteTaxonDescriptionOperation(label, undoContext, (TaxonDescription) object, factualDataPart, cdmEntitySessionEnabled);
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((TaxonDescription) object).getTaxon().removeDescription((TaxonDescription) object);
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} else if(object instanceof TaxonNameDescription ){
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operation = new DeleteTaxonNameDescriptionOperation(label, undoContext, (TaxonNameDescription) object, factualDataPart, cdmEntitySessionEnabled);
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((TaxonNameDescription) object).getTaxonName().removeDescription((TaxonNameDescription) object);
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} else if(object instanceof SpecimenDescription){
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operation = new DeleteSpecimenDescriptionOperation(label, undoContext, (SpecimenDescription) object, factualDataPart, cdmEntitySessionEnabled);
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specimen = ((SpecimenDescription) object).getDescribedSpecimenOrObservation();
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specimen.removeDescription((SpecimenDescription) object);
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} else if(object instanceof DescriptionElementBase){
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// DescriptionElementBase
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operation = new DeleteDescriptionElementOperation(label, undoContext, (DescriptionElementBase) object, factualDataPart, cdmEntitySessionEnabled);
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((DescriptionElementBase) object).getInDescription().removeElement((DescriptionElementBase) object);
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} else if(object instanceof FeatureNodeContainer){
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List<DescriptionElementBase> descriptions = ((FeatureNodeContainer) object).getDescriptionElementsForEntireBranch();
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for(DescriptionElementBase descriptionElement : descriptions){
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operation = new DeleteDescriptionElementOperation(label, undoContext, descriptionElement, factualDataPart, cdmEntitySessionEnabled);
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}
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((FeatureNodeContainer)object).getContainerTree().removeContainer((FeatureNodeContainer)object);
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}
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if (factualDataPart.getSelectionProvidingPart().getObject() instanceof TaxonNameEditorE4){
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((TaxonNameEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).getEditorInput().addOperation(operation);
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((TaxonNameEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).setDirty();
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((TaxonNameEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).redraw();
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}
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if (factualDataPart.getSelectionProvidingPart().getObject() instanceof DerivateView){
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((DerivateView)factualDataPart.getSelectionProvidingPart().getObject()).addOperation(operation);
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((DerivateView)factualDataPart.getSelectionProvidingPart().getObject()).setDirty(true);
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if (object instanceof DescriptionBase){
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factualDataPart.getViewer().refresh();
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factualDataPart.collapse();
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} else if (object instanceof DescriptionElementBase){
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if (description != null){
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factualDataPart.changed(description);
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}
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}
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}
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if (factualDataPart.getSelectionProvidingPart().getObject() instanceof BulkEditorE4){
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((BulkEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).addOperation(operation);
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((BulkEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).setDirty(true);
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if (object instanceof SpecimenDescription){
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((BulkEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).changed(((SpecimenDescription)object).getDescribedSpecimenOrObservation());
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}else if (object instanceof TaxonDescription){
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((BulkEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).changed(((TaxonDescription)object).getTaxon());
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}else if (object instanceof TaxonNameDescription){
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((BulkEditorE4)factualDataPart.getSelectionProvidingPart().getObject()).changed(((TaxonNameDescription)object).getTaxonName());
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}
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}
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viewer.refresh();
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if (expandedElements.length>0){
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for (Object o: expandedElements){
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if (o instanceof FeatureNodeContainer && object instanceof DescriptionElementBase){
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FeatureNodeContainer container = (FeatureNodeContainer)o;
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if (container.getDescriptionElements().contains(object)){
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container.getDescriptionElements().remove(object);
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break;
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}
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}
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}
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viewer.setExpandedElements(expandedElements);
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}
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}
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else{
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Exception e = result.getExceptions() != null && !result.getExceptions().isEmpty()? result.getExceptions().iterator().next() : null;
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MessagingUtils.informationDialog("Delete not possible", e.getMessage());
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break;
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}
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}
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}
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@CanExecute
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public boolean canExecute(@Optional @Named(IServiceConstants.ACTIVE_PART) MPart activePart,
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MHandledMenuItem menuItem){
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FactualDataPartE4 factualDataPart = (FactualDataPartE4) activePart.getObject();
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ISelection selection = factualDataPart.getViewer().getSelection();
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boolean canExecute = true;
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if (selection instanceof IStructuredSelection && !selection.isEmpty()){
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IStructuredSelection sel = (IStructuredSelection) selection;
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if (sel.getFirstElement() instanceof FeatureNodeContainer){
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canExecute = false;
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}
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}
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canExecute &= selection instanceof IStructuredSelection && !selection.isEmpty() && !(((IStructuredSelection)selection).getFirstElement() instanceof FeatureNodeContainer);
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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}
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