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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.NodeDeletionConfigurator.ChildHandling;
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import eu.etaxonomy.cdm.api.service.config.TermNodeDeletionConfigurator;
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import eu.etaxonomy.cdm.api.service.exception.DataChangeNoRollbackException;
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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.term.DefinedTermBase;
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import eu.etaxonomy.cdm.model.term.TermNode;
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import eu.etaxonomy.cdm.model.term.TermTree;
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import eu.etaxonomy.cdm.persistence.dao.term.ITermNodeDao;
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/**
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* @author n.hoffmann
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* @since Aug 5, 2010
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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<TermNode, ITermNodeDao> implements IFeatureNodeService {
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@SuppressWarnings("unused")
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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(ITermNodeDao 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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@Autowired
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private IVocabularyService vocabularyService;
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@Override
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@Transactional(readOnly = false)
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public DeleteResult deleteFeatureNode(UUID nodeUuid, TermNodeDeletionConfigurator config) {
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DeleteResult result = new DeleteResult();
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TermNode<Feature> node = dao.load(nodeUuid);
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result = isDeletable(nodeUuid, config);
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if (result.isOk()){
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node = HibernateProxyHelper.deproxy(node);
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TermNode<Feature> parent = node.getParent();
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parent = CdmBase.deproxy(parent);
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List<TermNode<Feature>> children = new ArrayList<>(node.getChildNodes());
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if (config.getChildHandling().equals(ChildHandling.DELETE)){
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for (TermNode<Feature> 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 (TermNode<Feature> 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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result.addDeletedObject(node);
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if(parent!=null){
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result.addUpdatedObject(parent);
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}
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if (config.isDeleteElement()){
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DefinedTermBase<?> term = node.getTerm();
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termService.delete(term.getUuid());
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result.addDeletedObject(term);
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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 UpdateResult addChildFeatureNode(UUID nodeUUID, UUID termChildUuid){
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return addChildFeatureNode(nodeUUID, termChildUuid, 0);
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}
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@Override
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public UpdateResult addChildFeatureNode(UUID nodeUUID, UUID termChildUuid, int position){
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TermNode node = load(nodeUUID);
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DefinedTermBase child = HibernateProxyHelper.deproxy(termService.load(termChildUuid), DefinedTermBase.class);
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TermNode childNode;
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UpdateResult result = new UpdateResult();
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if(position<0) {
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childNode = node.addChild(child);
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}
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else{
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childNode = node.addChild(child, position);
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}
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save(childNode);
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result.addUpdatedObject(node);
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result.setCdmEntity(childNode);
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return result;
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}
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@Override
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public DeleteResult isDeletable(UUID nodeUuid, TermNodeDeletionConfigurator config){
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TermNode<Feature> node = load(nodeUuid);
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DeleteResult result = new DeleteResult();
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if (node == null){
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result.addException(new DataChangeNoRollbackException("The object is not available anymore."));
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result.setAbort();
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return result;
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}
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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 TermNode){
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break;
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}
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if (ref instanceof TermTree){
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TermTree<Feature> refTree = HibernateProxyHelper.deproxy(ref, TermTree.class);
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if (node.getGraph().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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* {@inheritDoc}
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*/
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@Override
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public UpdateResult moveFeatureNode(UUID movedNodeUuid, UUID targetNodeUuid, int position) {
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UpdateResult result = new UpdateResult();
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TermNode<Feature> movedNode = HibernateProxyHelper.deproxy(load(movedNodeUuid), TermNode.class);
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TermNode<Feature> targetNode = HibernateProxyHelper.deproxy(load(targetNodeUuid), TermNode.class);
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TermNode<Feature> parent = HibernateProxyHelper.deproxy(movedNode.getParent(), TermNode.class);
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if(position<0){
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targetNode.addChild(movedNode);
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}
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else{
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targetNode.addChild(movedNode, position);
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}
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result.addUpdatedObject(targetNode);
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if(parent!=null){
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result.addUpdatedObject(parent);
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}
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result.setCdmEntity(movedNode);
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return result;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public UpdateResult moveFeatureNode(UUID movedNodeUuid, UUID targetNodeUuid) {
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return moveFeatureNode(movedNodeUuid, targetNodeUuid, -1);
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}
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}
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