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// $Id$
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/**
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* Copyright (C) 2015 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.persistence.hibernate;
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import org.hibernate.event.spi.PreInsertEvent;
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import org.hibernate.event.spi.PreInsertEventListener;
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import org.hibernate.event.spi.PreUpdateEvent;
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import org.hibernate.event.spi.PreUpdateEventListener;
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import org.joda.time.DateTime;
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import org.springframework.security.core.Authentication;
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import org.springframework.security.core.context.SecurityContextHolder;
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import eu.etaxonomy.cdm.model.agent.Team;
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import eu.etaxonomy.cdm.model.agent.TeamOrPersonBase;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.common.ICdmBase;
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import eu.etaxonomy.cdm.model.common.ITreeNode;
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import eu.etaxonomy.cdm.model.common.IdentifiableEntity;
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import eu.etaxonomy.cdm.model.common.User;
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import eu.etaxonomy.cdm.model.common.VersionableEntity;
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import eu.etaxonomy.cdm.model.description.FeatureNode;
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import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
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import eu.etaxonomy.cdm.model.molecular.Amplification;
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import eu.etaxonomy.cdm.model.name.NonViralName;
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import eu.etaxonomy.cdm.model.occurrence.DeterminationEvent;
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import eu.etaxonomy.cdm.model.reference.Reference;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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/**
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* @author cmathew
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* @date 7 Jul 2015
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*
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*/
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public class CdmPreDataChangeListener implements PreInsertEventListener, PreUpdateEventListener {
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private static final long serialVersionUID = -7581071903134036209L;
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static String sep = ITreeNode.separator;
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static String pref = ITreeNode.treePrefix;
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@Override
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public boolean onPreUpdate(PreUpdateEvent event) {
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try {
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Object entity = event.getEntity();
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if (VersionableEntity.class.isAssignableFrom(entity.getClass())) {
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VersionableEntity versionableEntity = (VersionableEntity)entity;
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versionableEntity.setUpdated(new DateTime());
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Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
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if(authentication != null && authentication.getPrincipal() != null && authentication.getPrincipal() instanceof User) {
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User user = (User)authentication.getPrincipal();
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versionableEntity.setUpdatedBy(user);
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}
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}
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insertUpdateMerge(event.getEntity());
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} finally {
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return false;
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}
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}
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@Override
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public boolean onPreInsert(PreInsertEvent event) {
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try {
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Object entity = event.getEntity();
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Class<?> entityClazz = entity.getClass();
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if(ICdmBase.class.isAssignableFrom(entityClazz)) {
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ICdmBase cdmBase = (ICdmBase)entity;
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if (cdmBase.getCreated() == null){
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cdmBase.setCreated(new DateTime());
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}
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if(cdmBase.getCreatedBy() == null) {
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Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
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if(authentication != null && authentication.getPrincipal() != null && authentication.getPrincipal() instanceof User) {
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User user = (User)authentication.getPrincipal();
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cdmBase.setCreatedBy(user);
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}
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}
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}
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insertUpdateMerge(entity);
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} finally {
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return false;
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}
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}
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//from former SaveOrUpdateOrMergeEntityListener
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public static void insertUpdateMerge(Object entity){
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if(entity != null && CdmBase.class.isAssignableFrom(entity.getClass())){
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cacheDeterminationNames(entity);
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generateCaches(entity);
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removeNullFromCollections(entity);
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}
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}
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/**
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* @param entity
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*/
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private static void removeNullFromCollections(Object entity) {
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if (entity != null){
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Class<?> entityClazz = entity.getClass();
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if (TaxonNode.class.isAssignableFrom(entityClazz)){
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TaxonNode node = (TaxonNode)entity;
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node.removeNullValueFromChildren();
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}else if(PolytomousKeyNode.class.isAssignableFrom(entityClazz)){
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PolytomousKeyNode node = (PolytomousKeyNode)entity;
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node.removeNullValueFromChildren();
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}else if(FeatureNode.class.isAssignableFrom(entityClazz)){
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FeatureNode node = (FeatureNode)entity;
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node.removeNullValueFromChildren();
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}
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}
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}
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private static void cacheDeterminationNames(Object entity) {
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if (entity instanceof DeterminationEvent) {
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DeterminationEvent detEv = (DeterminationEvent)entity;
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if (detEv.getTaxon() != null && detEv.getTaxonName() == null && detEv.getTaxon().getName() != null){
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detEv.setTaxonName(detEv.getTaxon().getName());
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}
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}
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}
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public static void generateCaches(Object entity){
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if (entity != null){
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Class<?> entityClazz = entity.getClass();
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if (IdentifiableEntity.class.isAssignableFrom(entityClazz)){
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IdentifiableEntity<?> identifiableEntity = (IdentifiableEntity)entity;
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//non-viral-name caches
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if(NonViralName.class.isAssignableFrom(entityClazz)) {
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NonViralName<?> nonViralName = (NonViralName<?>)entity;
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nonViralName.getAuthorshipCache();
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nonViralName.getNameCache();
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nonViralName.getTitleCache();
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nonViralName.getFullTitleCache();
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//team-or-person caches
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}else if(TeamOrPersonBase.class.isAssignableFrom(entityClazz)){
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TeamOrPersonBase<?> teamOrPerson = (TeamOrPersonBase<?>)entity;
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String nomTitle = teamOrPerson.getNomenclaturalTitle();
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if (teamOrPerson instanceof Team){
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Team team =CdmBase.deproxy(teamOrPerson, Team.class);
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team.setNomenclaturalTitle(nomTitle, team.isProtectedNomenclaturalTitleCache()); //nomTitle is not necessarily cached when it is created
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}else{
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teamOrPerson.setNomenclaturalTitle(nomTitle);
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}
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String titleCache = teamOrPerson.getTitleCache();
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if (! teamOrPerson.isProtectedTitleCache()){
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teamOrPerson.setTitleCache(titleCache, false);
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}
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//reference caches
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}else if(Reference.class.isAssignableFrom(entityClazz)){
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Reference ref = (Reference)entity;
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ref.getAbbrevTitleCache();
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ref.getTitleCache();
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}else { //any other
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//title cache
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identifiableEntity.getTitleCache();
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}
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//titleCache should never be empty, even if protected #5763, #5849
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if (identifiableEntity.isProtectedTitleCache() && identifiableEntity.hasEmptyTitleCache()){
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identifiableEntity.setTitleCache(null, false);
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identifiableEntity.getTitleCache();
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}
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if (identifiableEntity.hasEmptyTitleCache()){
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identifiableEntity.setTitleCache(identifiableEntity.toString(), false);
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}
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}else if(Amplification.class.isAssignableFrom(entityClazz)) {
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Amplification amplification = (Amplification)entity;
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amplification.updateCache();
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}
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}
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}
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}
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