EDIT

/**

* 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.operations;

import java.util.HashMap;

import java.util.Map;

import java.util.Set;

import org.eclipse.core.commands.ExecutionException;

import org.eclipse.core.commands.operations.IUndoContext;

import org.eclipse.core.runtime.IAdaptable;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Status;

import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;

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

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

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

import eu.etaxonomy.taxeditor.store.StoreUtil;

/**

 * Change the taxonomic parent of a given taxon.

 *

 * @author n.hoffmann

 * @created 16.01.2009

 * @version 1.0

 */

public class MoveTaxonOperation extends AbstractPersistentPostOperation {

	/**

	 * A reference to the new taxonomical parent.

	 */

	private ITreeNode newParentTreeNode;

	/**

	 * A reference to the former taxonomical parents

	 */

	private Map<TaxonNode, ITreeNode> oldParentTreeNodes;

	private Set<TaxonNode> taxonNodes;

	/**

	 * <p>Constructor for MoveTaxonOperation.</p>

	 *

	 * @param label a {@link java.lang.String} object.

	 * @param undoContext a {@link org.eclipse.core.commands.operations.IUndoContext} object.

	 * @param taxonNodes a {@link java.util.Set} object.

	 * @param newParentTreeNode a {@link eu.etaxonomy.cdm.model.taxon.ITreeNode} object.

	 * @param postOperationEnabled a {@link eu.etaxonomy.taxeditor.operations.IPostOperationEnabled} object.

	 * @param conversationEnabled a {@link eu.etaxonomy.cdm.api.conversation.IConversationEnabled} object.

	 */

	public MoveTaxonOperation(String label, IUndoContext undoContext,

			Set<TaxonNode> taxonNodes, ITreeNode newParentTreeNode, IPostOperationEnabled postOperationEnabled, IConversationEnabled conversationEnabled) {

		super(label, undoContext, postOperationEnabled, conversationEnabled);

		this.taxonNodes = taxonNodes;

		this.newParentTreeNode = newParentTreeNode;

		// Save old parent ITreeNodes for undo

		oldParentTreeNodes = new HashMap<TaxonNode, ITreeNode>();

		for(TaxonNode taxonNode : taxonNodes){

			this.oldParentTreeNodes.put(taxonNode, taxonNode.getParent());

		}

	}

	/* (non-Javadoc)

	 * @see org.eclipse.core.commands.operations.AbstractOperation#execute(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)

	 */

	/** {@inheritDoc} */

	@Override

	public IStatus execute(IProgressMonitor monitor, IAdaptable info)

			throws ExecutionException {

		bind();

		monitor.worked(20);

		try {

			for (TaxonNode taxonNode : taxonNodes){

				TaxonNode newTaxonNode = newParentTreeNode.addChildNode(taxonNode, 

						newParentTreeNode.getReference(), newParentTreeNode.getMicroReference(), 

						taxonNode.getSynonymToBeUsed());

				taxonNodes.add(newTaxonNode);

				monitor.worked(2);

			}

		} catch(IllegalAncestryException e) {

			StoreUtil.warningDialog("Illegal ancestry", this, e.getMessage());

		}

		monitor.worked(40);

		return postExecute(null);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.core.commands.operations.AbstractOperation#redo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)

	 */

	/** {@inheritDoc} */

	@Override

	public IStatus redo(IProgressMonitor monitor, IAdaptable info)

			throws ExecutionException {

		return execute(monitor, info);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.core.commands.operations.AbstractOperation#undo(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)

	 */

	/** {@inheritDoc} */

	@Override

	public IStatus undo(IProgressMonitor monitor, IAdaptable info)

			throws ExecutionException {

		StoreUtil.warn(this.getClass(), "Not implemented yet.");

		// iterate over oldParentTreeNodes, delete each TaxonNode from its actual parent and add to its former parent		

		return Status.OK_STATUS;

	}

}