cdmlib-services/src/main/java/eu/etaxonomy/cdm/api/service/PolytomousKeyNodeServiceImpl.java

   1 /**
   2 * Copyright (C) 2009 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.cdm.api.service;
  10
  11 import java.util.ArrayList;
  12 import java.util.List;
  13 import java.util.UUID;
  14
  15 import org.springframework.beans.factory.annotation.Autowired;
  16 import org.springframework.stereotype.Service;
  17 import org.springframework.transaction.annotation.Transactional;
  18
  19 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  20 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  21 import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
  22 import eu.etaxonomy.cdm.persistence.dao.description.IPolytomousKeyDao;
  23 import eu.etaxonomy.cdm.persistence.dao.description.IPolytomousKeyNodeDao;
  24
  25 /**
  26  * @author a.kohlbecker
  27  * @since 24.03.2011
  28  */
  29 @Service
  30 @Transactional(readOnly = false)
  31 public class PolytomousKeyNodeServiceImpl
  32         extends VersionableServiceBase<PolytomousKeyNode, IPolytomousKeyNodeDao>
  33         implements IPolytomousKeyNodeService {
  34
  35         @Override
  36     @Autowired
  37         protected void setDao(IPolytomousKeyNodeDao dao) {
  38                 this.dao = dao;
  39         }
  40
  41         @Autowired
  42         protected IPolytomousKeyDao keyDao;
  43
  44         @Override
  45         public DeleteResult delete(UUID nodeUUID, boolean deleteChildren){
  46         DeleteResult result = new DeleteResult();
  47         PolytomousKeyNode node = dao.findByUuid(nodeUUID);
  48         node = HibernateProxyHelper.deproxy(node);
  49         if (node == null) {
  50            // result.addException(new Exception("The polytomouskey node was already deleted."));
  51             return result;
  52         }
  53         List<PolytomousKeyNode> children = new ArrayList<>();
  54
  55         for (PolytomousKeyNode child: node.getChildren()){
  56             children.add(child);
  57         }
  58         PolytomousKeyNode parent = node.getParent();
  59         parent = HibernateProxyHelper.deproxy(parent);
  60         PolytomousKey key = null;
  61         if (parent == null){
  62             key = node.getKey();
  63             key = HibernateProxyHelper.deproxy(key);
  64         }
  65
  66         if(!deleteChildren){
  67             for (PolytomousKeyNode child: children){
  68                 if (!child.equals(node)){
  69                     parent.addChild(child);
  70                     dao.saveOrUpdate(child);
  71                     result.addUpdatedObject(child);
  72                 }
  73             }
  74
  75             dao.saveOrUpdate(node);
  76             result.addUpdatedObject(node);
  77         }
  78         if (parent!= null){
  79             parent.removeChild(node);
  80             dao.saveOrUpdate(parent);
  81         }
  82         if (node.getKey() != null && key != null){
  83             key.setRoot(null);
  84         }
  85         if (node.getTaxon() != null){
  86             node.removeTaxon();
  87         }
  88         if (dao.delete(node) == null){
  89             result.setAbort();
  90         }else{
  91             result.addDeletedObject(node);
  92         }
  93         if (parent != null){
  94             dao.saveOrUpdate(parent);
  95             result.addUpdatedObject(parent);
  96         } else{
  97             keyDao.saveOrUpdate(key);
  98             result.addUpdatedObject(key);
  99         }
 100
 101         return result;
 102     }
 103 }