EDIT

/**

 * 

 */

package eu.etaxonomy.taxeditor.editor.view.descriptive.handler;

import java.util.ArrayList;

import java.util.List;

import java.util.UUID;

import javax.lang.model.element.Element;

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.core.commands.IHandler;

import org.eclipse.core.commands.common.NotDefinedException;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.swt.widgets.Display;

import org.eclipse.ui.PartInitException;

import org.eclipse.ui.handlers.HandlerUtil;

import eu.etaxonomy.cdm.api.service.IDescriptionService;

import eu.etaxonomy.cdm.model.common.CdmBase;

import eu.etaxonomy.cdm.model.description.DescriptionElementBase;

import eu.etaxonomy.cdm.model.description.TaxonDescription;

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

import eu.etaxonomy.taxeditor.editor.EditorUtil;

import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;

import eu.etaxonomy.taxeditor.editor.Page;

import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;

import eu.etaxonomy.taxeditor.editor.name.TaxonNameEditor;

import eu.etaxonomy.taxeditor.editor.name.operation.ChangeAcceptedTaxonToSynonymOperation;

import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.MoveDescriptionToOtherTaxonOperation;

import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;

/**

 * <p>ChangeAcceptedTaxonToSynonymHandler class.</p>

 *

 * @author a.kohlbecker

 * @created Okt. 11, 2013

 * @version 1.0

 * 

 */

public class MoveDescriptionToOtherTaxonHandler extends AbstractHandler

		implements IHandler, IPostOperationEnabled {

	private static final Logger logger = Logger

			.getLogger(MoveDescriptionToOtherTaxonHandler.class);

	private MoveDescriptionToOtherTaxonOperation operation;

	private UUID newAcceptedTaxonNodeUuid;

	private TaxonNameEditor editor;

	/* (non-Javadoc)

	 * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)

	 */

	/** {@inheritDoc} */

	public Object execute(ExecutionEvent event) throws ExecutionException {

		ISelection selection = HandlerUtil.getCurrentSelection(event);

		if(selection instanceof IStructuredSelection){

			List<TaxonDescription> descriptions = new ArrayList<TaxonDescription>();

			IStructuredSelection structuredSelection = (IStructuredSelection) selection;

			for(Object element : structuredSelection.toArray()){

				if (element instanceof TaxonDescription){

					UUID uuid = ((TaxonDescription)element).getUuid();

					descriptions.add((TaxonDescription) CdmStore.getService(IDescriptionService.class).load(uuid, null));

				}

			}

			if(descriptions.size() == 0){

				return null;

			}

			// Choose the target taxon				

			List<UUID> excludeTaxa = new ArrayList<UUID>();

			editor = (TaxonNameEditor) EditorUtil.getActiveEditorPage(Page.NAME);

			excludeTaxa.add(descriptions.get(0).getTaxon().getUuid());

			TaxonNode newAcceptedTaxonNode = TaxonNodeSelectionDialog.select(HandlerUtil.getActiveShell(event), 

					editor.getConversationHolder(), 

					"Choose the accepted taxon", 

					excludeTaxa, 

					null, 

					null);			

			if (newAcceptedTaxonNode == null) {

				return null;

			}

			newAcceptedTaxonNodeUuid = newAcceptedTaxonNode.getUuid();

			try {

				for(TaxonDescription description : descriptions){

					operation = new MoveDescriptionToOtherTaxonOperation(event.getCommand().getName(), 

											editor.getUndoContext(), description, newAcceptedTaxonNode, this, editor);

					EditorUtil.executeOperation(operation);

				}

			} catch (NotDefinedException e) {

				logger.warn("Command name not set");

			}

		}

		return null;

	}

	/* (non-Javadoc)

	 * @see eu.etaxonomy.taxeditor.operations.IPostOperationEnabled#postOperation(eu.etaxonomy.cdm.model.common.CdmBase)

	 */

	/** {@inheritDoc} */

	public boolean postOperation(CdmBase objectAffectedByOperation) {

		Display.getDefault().asyncExec(new Runnable(){

			public void run() {

				EditorUtil.close(editor.getMultiPageTaxonEditor());

				try {

					MultiPageTaxonEditor possibleOpenEditor = (MultiPageTaxonEditor) EditorUtil.findEditorByTaxonNodeUuid(newAcceptedTaxonNodeUuid);

					if(possibleOpenEditor != null){

						EditorUtil.close(possibleOpenEditor);

					}

					EditorUtil.openTaxonNode(newAcceptedTaxonNodeUuid);

				} catch (PartInitException e) {

					EditorUtil.error(this.getClass(), e);

					throw new RuntimeException(e);

				} catch (Exception e) {

					EditorUtil.warningDialog("Could not create Taxon", this, e.getMessage());

				}

			}

		});

		return true;

	}

	/**

	 * <p>onComplete</p>

	 *

	 * @return a boolean.

	 */

	public boolean onComplete() {

		// TODO Auto-generated method stub

		return false;

	}	

}