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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.api.service;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import org.apache.log4j.Logger;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import eu.etaxonomy.cdm.api.service.config.FeatureNodeDeletionConfigurator;
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import eu.etaxonomy.cdm.api.service.config.NodeDeletionConfigurator.ChildHandling;
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import eu.etaxonomy.cdm.api.service.exception.ReferencedObjectUndeletableException;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.description.Feature;
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import eu.etaxonomy.cdm.model.description.FeatureNode;
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import eu.etaxonomy.cdm.model.description.FeatureTree;
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import eu.etaxonomy.cdm.persistence.dao.description.IFeatureNodeDao;
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/**
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* @author n.hoffmann
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* @created Aug 5, 2010
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* @version 1.0
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*/
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@Service
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@Transactional(readOnly = false)
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public class FeatureNodeServiceImpl extends VersionableServiceBase<FeatureNode, IFeatureNodeDao> implements IFeatureNodeService {
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private static final Logger logger = Logger.getLogger(FeatureNodeServiceImpl.class);
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@Override
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@Autowired
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protected void setDao(IFeatureNodeDao dao) {
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this.dao = dao;
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}
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@Autowired
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private ITermService termService;
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@Override
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@Transactional(readOnly = false)
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public DeleteResult deleteFeatureNode(UUID nodeUuid, FeatureNodeDeletionConfigurator config) {
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DeleteResult result = new DeleteResult();
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FeatureNode node = HibernateProxyHelper.deproxy(dao.load(nodeUuid), FeatureNode.class);
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result = isDeletable(node, config);
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Feature feature;
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if (result.isOk()){
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FeatureNode parent = node.getParent();
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parent = HibernateProxyHelper.deproxy(parent, FeatureNode.class);
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List<FeatureNode> children = new ArrayList(node.getChildNodes());
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if (config.getChildHandling().equals(ChildHandling.DELETE)){
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for (FeatureNode child: children){
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deleteFeatureNode(child.getUuid(), config);
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// node.removeChild(child);
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}
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if (parent != null){
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parent.removeChild(node);
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}
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} else{
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if (parent != null){
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parent.removeChild(node);
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for (FeatureNode child: children){
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node.removeChild(child);
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parent.addChild(child);
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}
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}else{
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result.setAbort();
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result.addException(new ReferencedObjectUndeletableException("The root node can not be deleted without its child nodes"));
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return result;
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}
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}
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dao.delete(node);
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if (config.isDeleteElement()){
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feature = node.getFeature();
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termService.delete(feature.getUuid());
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}
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}
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return result;
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}
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@Override
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public DeleteResult isDeletable(FeatureNode node, FeatureNodeDeletionConfigurator config){
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DeleteResult result = new DeleteResult();
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Set<CdmBase> references = commonService.getReferencingObjectsForDeletion(node);
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for (CdmBase ref:references){
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if (ref instanceof FeatureNode){
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break;
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}
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if (ref instanceof FeatureTree){
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FeatureTree refTree = HibernateProxyHelper.deproxy(ref, FeatureTree.class);
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if (node.getFeatureTree().equals((refTree))){
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break;
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}
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}
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result.setAbort();
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result.addException(new ReferencedObjectUndeletableException("The featureNode is referenced by " + ref.getUserFriendlyDescription() +" with id " +ref.getId()));
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}
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return result;
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}
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}
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