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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.featuretree.e4;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import javax.annotation.PostConstruct;
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import javax.annotation.PreDestroy;
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import javax.inject.Inject;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.e4.ui.di.Focus;
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import org.eclipse.e4.ui.di.Persist;
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import org.eclipse.e4.ui.model.application.ui.MDirtyable;
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import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
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import org.eclipse.jface.viewers.ISelectionChangedListener;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.SelectionChangedEvent;
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import org.eclipse.jface.wizard.WizardDialog;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.events.ModifyListener;
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import org.eclipse.swt.events.SelectionAdapter;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.widgets.Composite;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.service.IFeatureNodeService;
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import eu.etaxonomy.cdm.api.service.IFeatureTreeService;
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import eu.etaxonomy.cdm.api.service.config.FeatureNodeDeletionConfigurator;
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import eu.etaxonomy.cdm.model.description.Feature;
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import eu.etaxonomy.cdm.model.description.FeatureNode;
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import eu.etaxonomy.cdm.model.description.FeatureTree;
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import eu.etaxonomy.taxeditor.featuretree.AvailableFeaturesWizard;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.ui.dialog.selection.FeatureTreeSelectionDialog;
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/**
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*
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* @author pplitzner
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* @date 06.06.2017
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*
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*/
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public class FeatureTreeEditor implements ICdmEntitySessionEnabled,
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ModifyListener, ISelectionChangedListener {
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private ConversationHolder conversation;
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private ICdmEntitySession cdmEntitySession;
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@Inject
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private ESelectionService selService;
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@Inject
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private MDirtyable dirty;
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private FeatureTreeEditorComposite composite;
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@Inject
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public FeatureTreeEditor() {
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}
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/** {@inheritDoc} */
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@PostConstruct
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public void createControl(Composite parent){
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if (CdmStore.isActive()){
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if(conversation == null){
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conversation = CdmStore.createConversation();
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}
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if(cdmEntitySession!=null){
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cdmEntitySession = CdmStore.getCurrentSessionManager().newSession(this, true);
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}
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}
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else{
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return;
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}
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composite = new FeatureTreeEditorComposite(parent, SWT.NULL);
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composite.init(new FeatureNodeDragListener(composite.getViewer()),
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new FeatureNodeDropAdapter(this, composite.getViewer()), this, new SelectionAdapter() {
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@Override
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public void widgetSelected(SelectionEvent e) {
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if(isDirty()){
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if(MessagingUtils.confirmDialog("Editor has to be saved", "You have to save before loading another feature tree. Save now?")){
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save();
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}
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else{
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return;
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}
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}
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FeatureTree tree = FeatureTreeSelectionDialog.select(composite.getDisplay().getActiveShell(), conversation, null);
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if (tree != null) {
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composite.setSelectedTree(tree, FeatureTreeEditor.this);
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}
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}
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}, new AddButtonListener(), new RemoveSelectionListener(), new FeatureTreeExportListener(composite.getDisplay().getActiveShell(), composite));
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}
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public void setDirty(boolean isDirty){
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this.dirty.setDirty(isDirty);
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}
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public boolean isDirty(){
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return dirty.isDirty();
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}
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public FeatureTree getSelectedFeatureTree(){
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return composite.getFeatureTree();
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}
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/** {@inheritDoc} */
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@Override
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public void modifyText(ModifyEvent e) {
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composite.getFeatureTree().setTitleCache(composite.getText_title().getText(), true);
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setDirty(true);
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}
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/** {@inheritDoc} */
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@Override
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public void selectionChanged(SelectionChangedEvent event) {
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IStructuredSelection selection = (IStructuredSelection) event
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.getSelection();
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composite.getBtnAdd().setEnabled(selection.size() <= 1);
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composite.getBtnRemove().setEnabled(selection.size() > 0);
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//propagate selection
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selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event));
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}
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@Focus
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public void focus(){
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if(composite!=null){
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composite.getViewer().getControl().setFocus();
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}
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if(conversation!=null && !conversation.isBound()){
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conversation.bind();
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}
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if(cdmEntitySession != null) {
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cdmEntitySession.bind();
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}
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}
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@Persist
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public void save(){
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if (!conversation.isBound()) {
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conversation.bind();
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}
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// commit the conversation and start a new transaction immediately
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conversation.commit(true);
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CdmStore.getService(IFeatureTreeService.class).saveOrUpdate(composite.getFeatureTree());
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this.setDirty(false);
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}
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@PreDestroy
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public void dispose(){
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if(conversation!=null){
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conversation.close();
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}
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if(cdmEntitySession != null) {
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cdmEntitySession.dispose();
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}
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}
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@Override
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public ICdmEntitySession getCdmEntitySession() {
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return cdmEntitySession;
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}
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@Override
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public Map<Object, List<String>> getPropertyPathsMap() {
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List<String> propertyPaths = Arrays.asList(new String[] {
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"children", //$NON-NLS-1$
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"feature", //$NON-NLS-1$
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"featureTree", //$NON-NLS-1$
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});
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Map<Object, List<String>> propertyPathMap =
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new HashMap<Object, List<String>>();
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propertyPathMap.put(FeatureNode.class,propertyPaths);
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return propertyPathMap;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public List<FeatureTree> getRootEntities() {
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List<FeatureTree> root = new ArrayList<>();
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root.add(composite.getFeatureTree());
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return root;
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}
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private class AddButtonListener extends SelectionAdapter {
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@Override
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public void widgetSelected(SelectionEvent e) {
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AvailableFeaturesWizard wizard = new AvailableFeaturesWizard();
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WizardDialog dialog = new WizardDialog(e.widget.getDisplay().getActiveShell(), wizard);
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if (dialog.open() == IStatus.OK) {
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FeatureNode parent = ((FeatureTree) composite.getViewer().getInput()).getRoot();
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Collection<Feature> additionalFeatures = wizard.getAdditionalFeatures();
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for (Feature feature : additionalFeatures) {
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if(!getSelectedFeatureTree().getDistinctFeatures().contains(feature)){
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CdmStore.getService(IFeatureNodeService.class).addChildFeatureNode(parent.getUuid(), feature.getUuid());
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}
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}
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setDirty(true);
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composite.getViewer().refresh();
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composite.getViewer().expandToLevel(parent, 1);
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}
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}
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}
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private class RemoveSelectionListener extends SelectionAdapter {
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@Override
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public void widgetSelected(SelectionEvent e) {
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IStructuredSelection selection = (IStructuredSelection) composite.getViewer()
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.getSelection();
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for (Object selectedObject : selection.toArray()) {
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FeatureNode featureNode = (FeatureNode) selectedObject;
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CdmStore.getService(IFeatureNodeService.class).deleteFeatureNode(featureNode.getUuid(), new FeatureNodeDeletionConfigurator());
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}
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setDirty(true);
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composite.getViewer().refresh();
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}
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}
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}
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