EDIT

/**

 * 

 */

package eu.etaxonomy.taxeditor.editor.name.handler;

import java.util.ArrayList;

import java.util.List;

import java.util.UUID;

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.swt.widgets.Display;

import org.eclipse.ui.PartInitException;

import org.eclipse.ui.handlers.HandlerUtil;

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

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

import eu.etaxonomy.taxeditor.dialogs.filteredSelection.FilteredTaxonNodeSelectionDialog;

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.operations.ChangeAcceptedTaxonToSynonymOperation;

import eu.etaxonomy.taxeditor.operations.IPostOperationEnabled;

/**

 * <p>ChangeAcceptedTaxonToSynonymHandler class.</p>

 *

 * @author n.hoffmann

 * @created Jan 4, 2010

 * @version 1.0

 */

public class ChangeAcceptedTaxonToSynonymHandler extends AbstractHandler

		implements IHandler, IPostOperationEnabled {

	private static final Logger logger = Logger

			.getLogger(ChangeAcceptedTaxonToSynonymHandler.class);

	private ChangeAcceptedTaxonToSynonymOperation 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 {

		editor = (TaxonNameEditor) EditorUtil.getActiveEditorPage(

				Page.NAME);

		TaxonNode oldAcceptedTaxonNode = ((TaxonEditorInput) editor.getEditorInput()).getTaxonNode();

		// Choose new accepted taxon	

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

		excludeTaxa.add(oldAcceptedTaxonNode.getUuid());

		TaxonNode newAcceptedTaxonNode = FilteredTaxonNodeSelectionDialog.select(HandlerUtil.getActiveShell(event), editor.getConversationHolder(), "Choose the accepted taxon", excludeTaxa, null);

		if (newAcceptedTaxonNode == null) {

			return null;

		}

		newAcceptedTaxonNodeUuid = newAcceptedTaxonNode.getUuid();

		try {

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

									editor.getUndoContext(), oldAcceptedTaxonNode, 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;

	}	

}