EDIT

// $Id$

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy 

* http://www.e-taxonomy.eu

* 

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.taxeditor.editor;

import java.util.UUID;

import org.eclipse.core.runtime.IAdaptable;

import org.eclipse.ui.IElementFactory;

import org.eclipse.ui.IMemento;

import eu.etaxonomy.taxeditor.store.CdmStore;

/**

 * <p>TaxonEditorInputFactory class.</p>

 *

 * @author p.ciardelli

 * @created 23.04.2009

 * @version 1.0

 */

public class TaxonEditorInputFactory implements IElementFactory {

    /**

     * Factory id. The workbench plug-in registers a factory by this name

     * with the "org.eclipse.ui.elementFactories" extension point.

     */

    private static final String ID_FACTORY = "eu.etaxonomy.taxeditor.editor.TaxonEditorInputFactory"; //$NON-NLS-1$

    /**

     * Tag for the IFile.fullPath of the file resource.

     */

    private static final String TAXON_NODE_UUID = "uuid"; //$NON-NLS-1$

	/* (non-Javadoc)

	 * @see org.eclipse.ui.IElementFactory#createElement(org.eclipse.ui.IMemento)

	 */

	/** {@inheritDoc} */

	public IAdaptable createElement(IMemento memento) {

        // Get the uuid

        String taxonNodeUuid = memento.getString(TAXON_NODE_UUID);

        if(! CdmStore.isActive()){

        	return null;

        }

        if (taxonNodeUuid == null || CdmStore.getTaxonTreeService().getTaxonNodeByUuid(UUID.fromString(taxonNodeUuid)) == null) {

        	EditorUtil.warn(this.getClass(), "Couldn't find taxon node with UUID " + taxonNodeUuid);

        	return null;

        }

        try {

			return TaxonEditorInput.NewInstance(UUID.fromString(taxonNodeUuid));

		} catch (Exception e) {

			EditorUtil.warningDialog("Could not create element", TaxonEditorInputFactory.class, e.getMessage());

		}

		return null;

	}	

    /**

     * Returns the element factory id for this class.

     *

     * @return the element factory id

     */

    public static String getFactoryId() {

        return ID_FACTORY;

    }

    /**

     * Saves the state of the given file editor input into the given memento.

     *

     * @param memento the storage area for element state

     * @param input the file editor input

     */

    public static void saveState(IMemento memento, TaxonEditorInput input) {

    	String uuid = input.getTaxonNode().getUuid().toString();

        memento.putString(TAXON_NODE_UUID, uuid);

    }

}