EDIT

// $Id$

/**

* Copyright (C) 2009 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.cdm.api.service;

import java.util.List;

import java.util.UUID;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;

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

import eu.etaxonomy.cdm.persistence.dao.description.IPolytomousKeyNodeDao;

/**

 * @author a.kohlbecker

 * @date 24.03.2011

 *

 */

@Service

@Transactional(readOnly = false)

public class PolytomousKeyNodeServiceImpl  extends VersionableServiceBase<PolytomousKeyNode, IPolytomousKeyNodeDao> implements IPolytomousKeyNodeService {

	@Override

    @Autowired

	protected void setDao(IPolytomousKeyNodeDao dao) {

		this.dao = dao;

	}

	@Override

	public DeleteResult delete(UUID nodeUUID, boolean deleteChildren){

		DeleteResult result = new DeleteResult();

		PolytomousKeyNode node = dao.findByUuid(nodeUUID);

		node = (PolytomousKeyNode)HibernateProxyHelper.deproxy(node);

		List<PolytomousKeyNode> children = node.getChildren();

		PolytomousKeyNode parent = node.getParent();

		parent = HibernateProxyHelper.deproxy(parent, PolytomousKeyNode.class);

		if(!deleteChildren){

			for (PolytomousKeyNode child: children){

				parent.addChild(child);

				parent.removeChild(node);

				dao.update(child);

				result.addUpdatedObject(child);

			}

			dao.update(node);

			result.addUpdatedObject(node);

		}

		if (node.getParent()!= null){

			node.getParent().removeChild(node);

		}

		if (node.getKey().getRoot().equals(node)){

			node.getKey().setRoot(null);

		}

		if (dao.delete(node) == null){

			result.setAbort();

		}

		dao.saveOrUpdate(parent);

		result.addUpdatedObject(parent);

		return result;

	}

}