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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.persistence.hibernate;
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import java.io.Serializable;
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import java.util.UUID;
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import org.apache.log4j.Logger;
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import org.hibernate.EmptyInterceptor;
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import org.hibernate.Transaction;
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import org.hibernate.type.Type;
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import org.springframework.stereotype.Component;
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import eu.etaxonomy.cdm.database.VocabularyStoreImpl;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.common.DefinedTermBase;
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/**
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* @author a.mueller
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*
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*/
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@Component
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public class CdmHibernateInterceptor extends EmptyInterceptor {
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private static final long serialVersionUID = 2536017420460052854L;
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private static final Logger logger = Logger.getLogger(CdmHibernateInterceptor.class);
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//FIXME problem is circular dependency (see VocabularyStoreImpl.staticInitialized
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// @Autowired
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// VocabularyStoreImpl vocabularyStore;
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private int updates;
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private int creates;
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private int loads;
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public void onDelete(Object entity,
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Serializable id,
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Object[] state,
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String[] propertyNames,
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Type[] types) {
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// do nothing
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}
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public boolean onFlushDirty(Object entity,
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Serializable id,
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Object[] currentState,
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Object[] previousState,
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String[] propertyNames,
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Type[] types) {
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boolean result = false;
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if ( entity instanceof CdmBase ) {
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updates++;
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//result &= checkTransientDefinedTerms(currentState);
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}
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return result;
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}
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public boolean onLoad(Object entity,
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Serializable id,
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Object[] state,
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String[] propertyNames,
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Type[] types) {
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if ( entity instanceof CdmBase ) {
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loads++;
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}
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return false;
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}
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public boolean onSave(Object entity,
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Serializable id,
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Object[] state,
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String[] propertyNames,
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Type[] types) {
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boolean result = false;
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if ( entity instanceof CdmBase ) {
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creates++;
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//result &= checkTransientDefinedTerms(state);
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}
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return result;
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}
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private boolean checkTransientDefinedTerms(Object[] state){
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boolean result = false;
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if (VocabularyStoreImpl.isInitialized()){
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//System.out.println("Save: " + entity);
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int i = -1;
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for (Object singleState : state){
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i++;
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if (singleState instanceof DefinedTermBase){
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DefinedTermBase term = ((DefinedTermBase)singleState);
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if (term.getId() != 0){
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continue;
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}else{
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//System.out.println(" " + singleState.getClass());
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UUID uuid = term.getUuid();
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DefinedTermBase storedTermBase = VocabularyStoreImpl.getCurrentVocabularyStore().getTermByUuid(uuid);
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if (storedTermBase == null){
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logger.warn("DefinedTermBase with uuid "+ uuid +" could not be found in vocabulary store. Term stays transient.");
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}else if (uuid.equals(storedTermBase.getUuid())){
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logger.debug("Changed transient term");
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state[i] = storedTermBase;
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result = true;
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}else{
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throw new IllegalStateException("UUID is not equal.");
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}
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}
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}
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}
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}else{ //not initialized
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}
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return result;
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}
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public void afterTransactionCompletion(Transaction tx) {
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if ( tx.wasCommitted() ) {
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logger.debug("Creations: " + creates + ", Updates: " + updates + ", Loads: " + loads);
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}
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updates=0;
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creates=0;
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loads=0;
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}
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}
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