EDIT

package eu.etaxonomy.taxeditor.navigation.navigator.handler;

import org.apache.log4j.Logger;

import org.eclipse.core.commands.AbstractHandler;

import org.eclipse.core.commands.ExecutionEvent;

import org.eclipse.core.commands.ExecutionException;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.jface.wizard.WizardDialog;

import org.eclipse.swt.widgets.Display;

import org.eclipse.ui.handlers.HandlerUtil;

import eu.etaxonomy.cdm.model.reference.Reference;

import eu.etaxonomy.cdm.model.taxon.Classification;

import eu.etaxonomy.cdm.model.taxon.TaxonRelationshipType;

import eu.etaxonomy.taxeditor.model.AbstractUtility;

import eu.etaxonomy.taxeditor.navigation.NavigationUtil;

import eu.etaxonomy.taxeditor.navigation.l10n.Messages;

import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigator;

import eu.etaxonomy.taxeditor.navigation.operation.CloneClassificationOperation;

import eu.etaxonomy.taxeditor.store.StoreUtil;

import eu.etaxonomy.taxeditor.ui.section.classification.CloneClassificationWizard;

public class CloneClassificationHandler extends AbstractHandler {

    @SuppressWarnings("unused")

    private static final Logger logger = Logger.getLogger(CloneClassificationHandler.class);

    @Override

    public Object execute(ExecutionEvent event) throws ExecutionException {

        ISelection currentSelection = HandlerUtil.getCurrentSelection(event);

        if (currentSelection instanceof IStructuredSelection) {

            Object selectedElement = ((IStructuredSelection) currentSelection).getFirstElement();

            if (selectedElement instanceof Classification) {

                Classification classification = (Classification) selectedElement;

                TaxonNavigator taxonNavigator = (TaxonNavigator)AbstractUtility.showView(TaxonNavigator.ID);

                CloneClassificationWizard wizard = new CloneClassificationWizard(classification);

                WizardDialog dialog = new WizardDialog(Display.getCurrent().getActiveShell(), wizard);

                dialog.open();

                String classificationName = wizard.getClassificationName();

                TaxonRelationshipType relationType = wizard.getRelationType();

                Reference reference = wizard.getReference();

                CloneClassificationOperation operation = new CloneClassificationOperation(Messages.CloneClassificationHandler_CLONE_CLASSIFICATION,

                        StoreUtil.getUndoContext(), classification, classificationName, reference, relationType,

                        NavigationUtil.getNavigator(false), NavigationUtil.getNavigator(false));

                AbstractUtility.executeOperation(operation);

                taxonNavigator.refresh();

            }

        }

        return null;

    }

}