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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 java.util.HashMap;
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import org.apache.log4j.Logger;
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import org.hibernate.event.spi.PostInsertEvent;
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import org.hibernate.event.spi.PostInsertEventListener;
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import org.hibernate.event.spi.PostUpdateEvent;
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import org.hibernate.event.spi.PostUpdateEventListener;
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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.common.ICdmBase;
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import eu.etaxonomy.cdm.model.validation.CRUDEventType;
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import eu.etaxonomy.cdm.model.validation.EntityConstraintViolation;
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import eu.etaxonomy.cdm.model.validation.EntityValidation;
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import eu.etaxonomy.cdm.persistence.dao.validation.IEntityValidationCrud;
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import eu.etaxonomy.cdm.persistence.validation.EntityValidationTaskBase;
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import eu.etaxonomy.cdm.persistence.validation.ValidationExecutor;
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/**
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* @author a.mueller
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\* @since 13.02.2015
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*
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*/
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@SuppressWarnings("serial")
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public abstract class ValidationEventListenerBase implements PostInsertEventListener, PostUpdateEventListener{
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private static final Logger logger = Logger.getLogger(ValidationEventListenerBase.class);
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private ValidationExecutor validationExecutor;
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private final IEntityValidationCrud dao;
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private boolean enabled = true;
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protected ValidationEventListenerBase(IEntityValidationCrud dao){
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this.dao = dao;
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}
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public ValidationExecutor getValidationExecutor(){
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return validationExecutor;
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}
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public void setValidationExecutor(ValidationExecutor validationExecutor){
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this.validationExecutor = validationExecutor;
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}
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@Override
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public void onPostInsert(PostInsertEvent event){
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validate(event.getEntity(), CRUDEventType.INSERT);
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}
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@Override
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public void onPostUpdate(PostUpdateEvent event){
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validate(event.getEntity(), CRUDEventType.UPDATE);
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}
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/**
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* @return the dao
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*/
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protected IEntityValidationCrud getDao() {
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return dao;
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}
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protected void validate(Object object, CRUDEventType trigger){
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if (!enabled){
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if(logger.isDebugEnabled()){logger.debug("Pass " + levelString() + " validator as it is disabled");}
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return;
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}
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if (object == null) {
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if(logger.isDebugEnabled()){logger.debug("Nothing to validate (entity is null)");}
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return;
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}
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try {
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if (!(object instanceof CdmBase)) {
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if (object.getClass() != HashMap.class) {
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if(logger.isDebugEnabled()){ logger.debug(levelString() + " validation bypassed for entities of type " + object.getClass().getName());}
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}
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return;
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}
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if (object instanceof EntityValidation || object instanceof EntityConstraintViolation) {
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if(logger.isDebugEnabled()){ logger.debug(levelString() + " validation bypassed for entities of type " + object.getClass().getName() + ". We do not validate validation result entities themselves");}
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return;
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}
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//validate
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ICdmBase entity = HibernateProxyHelper.deproxy(object, CdmBase.class) ;
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EntityValidationTaskBase task = createValidationTask(entity, trigger);
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getValidationExecutor().execute(task);
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}
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catch (Throwable t) {
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logger.error("Failed applying " + levelString() + " validation to " + object.toString(), t);
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}
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}
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protected abstract EntityValidationTaskBase createValidationTask(ICdmBase entity, CRUDEventType trigger);
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protected abstract String levelString();
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@Deprecated //this is in test mode, may be removed in future
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public void setEnabled(boolean enabled){
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this.enabled = enabled;
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}
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}
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