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/**
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* Copyright (C) 2009 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.dao.hibernate.common;
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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.hibernate.criterion.Criterion;
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import org.hibernate.envers.query.AuditEntity;
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import org.hibernate.envers.query.AuditQuery;
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import org.hibernate.envers.query.criteria.AuditCriterion;
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import eu.etaxonomy.cdm.model.common.VersionableEntity;
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import eu.etaxonomy.cdm.model.view.AuditEvent;
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import eu.etaxonomy.cdm.model.view.AuditEventRecord;
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import eu.etaxonomy.cdm.model.view.AuditEventRecordImpl;
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import eu.etaxonomy.cdm.model.view.context.AuditEventContext;
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import eu.etaxonomy.cdm.model.view.context.AuditEventContextHolder;
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import eu.etaxonomy.cdm.persistence.dao.common.AuditEventSort;
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import eu.etaxonomy.cdm.persistence.dao.common.IVersionableDao;
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import eu.etaxonomy.cdm.persistence.dao.common.OperationNotSupportedInPriorViewException;
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import eu.etaxonomy.cdm.persistence.query.MatchMode;
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import eu.etaxonomy.cdm.persistence.query.OrderHint;
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public abstract class VersionableDaoBase<T extends VersionableEntity> extends CdmEntityDaoBase<T> implements IVersionableDao<T> {
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private static final Logger logger = Logger.getLogger(VersionableDaoBase.class);
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public VersionableDaoBase(Class<T> type) {
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super(type);
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}
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protected AuditEvent getAuditEventFromContext() {
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AuditEventContext auditEventContext = AuditEventContextHolder.getContext();
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AuditEvent auditEvent = auditEventContext.getAuditEvent();
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if(auditEvent != null) {
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logger.debug(" AuditEvent found, returning " + auditEvent);
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return auditEvent;
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} else {
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logger.debug(" AuditEvent is NULL, returning AuditEvent.CURRENT_VIEW");
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return AuditEvent.CURRENT_VIEW;
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}
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}
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protected void checkNotInPriorView(String message) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(!auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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throw new OperationNotSupportedInPriorViewException(message);
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}
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}
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@Override
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public T findByUuid(UUID uuid) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.findByUuid(uuid);
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} else {
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AuditQuery query = makeAuditQuery(null, auditEvent);
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query.add(AuditEntity.property("uuid").eq(uuid));
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@SuppressWarnings("unchecked")
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T result = (T)query.getSingleResult();
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return result;
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}
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}
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@Override
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protected List<T> findByParam(Class<? extends T> clazz, String param, String queryString, MatchMode matchmode, List<Criterion> criterion, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths) {
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checkNotInPriorView("IdentifiableDaoBase.findByParam(Class<? extends T> clazz, String queryString, MatchMode matchmode, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths)");
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return super.findByParam(clazz, param, queryString, matchmode, criterion, pageSize, pageNumber, orderHints, propertyPaths);
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}
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@Override
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public T load(UUID uuid) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.load(uuid);
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} else {
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AuditQuery query = makeAuditQuery(null, auditEvent);
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query.add(AuditEntity.property("uuid").eq(uuid));
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@SuppressWarnings("unchecked")
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T t = (T)query.getSingleResult();
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defaultBeanInitializer.load(t);
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return t;
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}
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}
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@Override
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public T load(UUID uuid, List<String> propertyPaths) {
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return this.load(uuid, INCLUDE_UNPUBLISHED, propertyPaths);
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}
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@Override
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protected T load(UUID uuid, boolean includeUnpublished, List<String> propertyPaths) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.load(uuid, includeUnpublished, propertyPaths);
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} else {
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//TODO includeUnpublished
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AuditQuery query = makeAuditQuery(null, auditEvent);
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query.add(AuditEntity.property("uuid").eq(uuid));
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@SuppressWarnings("unchecked")
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T t = (T)query.getSingleResult();
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defaultBeanInitializer.initialize(t, propertyPaths);
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return t;
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}
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}
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@Override
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public Boolean exists(UUID uuid) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.exists(uuid);
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} else {
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AuditQuery query = makeAuditQuery(null, auditEvent);
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query.add(AuditEntity.property("uuid").eq(uuid));
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return null != query.getSingleResult();
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}
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}
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@Override
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public long count() {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.count();
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} else {
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return this.count(null);
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}
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}
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@Override
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public long count(Class<? extends T> clazz) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.count(clazz);
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} else {
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AuditQuery query = makeAuditQuery(clazz, auditEvent);
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query.addProjection(AuditEntity.id().count());
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return (Long)query.getSingleResult();
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}
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}
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@Override
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public List<T> list(Integer limit, Integer start) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.list(limit, start);
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} else {
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return this.list(null, limit, start);
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}
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}
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@Override
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public <S extends T> List<S> list(Class<S> type, Integer limit, Integer start) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.list(type,limit, start);
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} else {
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return this.list(type, limit, start, null,null);
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}
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}
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@Override
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public <S extends T> List<S> list(Class<S> clazz, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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return super.list(clazz, limit, start, orderHints, propertyPaths);
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} else {
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AuditQuery query = makeAuditQuery(clazz, auditEvent);
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addOrder(query,orderHints);
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addLimitAndStart(query, limit, start);
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@SuppressWarnings("unchecked")
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List<S> result = query.getResultList();
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defaultBeanInitializer.initializeAll(result, propertyPaths);
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return result;
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}
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}
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protected void addOrder(AuditQuery query, List<OrderHint> orderHints) {
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if(orderHints != null && !orderHints.isEmpty()) {
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for(OrderHint orderHint : orderHints) {
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orderHint.add(query);
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}
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}
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}
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@Override
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public List<AuditEventRecord<T>> getAuditEvents(T t, Integer pageSize, Integer pageNumber, AuditEventSort sort, List<String> propertyPaths) {
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AuditEvent auditEvent = getAuditEventFromContext();
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AuditQuery query = getAuditReader().createQuery().forRevisionsOfEntity(type, false, true);
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query.add(AuditEntity.id().eq(t.getId()));
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if(sort == null) {
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sort = AuditEventSort.BACKWARDS;
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}
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if(sort.equals(AuditEventSort.BACKWARDS)) {
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if(!auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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query.add(AuditEntity.revisionNumber().lt(auditEvent.getRevisionNumber()));
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}
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query.addOrder(AuditEntity.revisionNumber().desc());
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} else {
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if(!auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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query.add(AuditEntity.revisionNumber().gt(auditEvent.getRevisionNumber()));
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}
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query.addOrder(AuditEntity.revisionNumber().asc());
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}
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if(pageSize != null) {
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query.setMaxResults(pageSize);
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if(pageNumber != null) {
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query.setFirstResult(pageNumber * pageSize);
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} else {
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query.setFirstResult(0);
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}
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}
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/**
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* At the moment we need to transform the data manually
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*/
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@SuppressWarnings("unchecked")
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List<Object[]> objs = query.getResultList();
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List<AuditEventRecord<T>> records = new ArrayList<AuditEventRecord<T>>();
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for(Object[] obj : objs) {
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records.add(new AuditEventRecordImpl<T>(obj));
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}
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for(AuditEventRecord<T> record : records) {
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defaultBeanInitializer.initialize(record.getAuditableObject(), propertyPaths);
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}
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return records;
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}
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@Override
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public long countAuditEvents(T t, AuditEventSort sort) {
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AuditEvent auditEvent = getAuditEventFromContext();
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AuditQuery query = getAuditReader().createQuery().forRevisionsOfEntity(type, false, true);
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query.add(AuditEntity.id().eq(t.getId()));
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if(!auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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if(sort == null) {
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sort = AuditEventSort.BACKWARDS;
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}
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if(sort.equals(AuditEventSort.BACKWARDS)) {
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query.add(AuditEntity.revisionNumber().lt(auditEvent.getRevisionNumber()));
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} else {
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query.add(AuditEntity.revisionNumber().gt(auditEvent.getRevisionNumber()));
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}
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}
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query.addProjection(AuditEntity.revisionNumber().count());
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return (Long)query.getSingleResult();
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}
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@Override
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public AuditEventRecord<T> getNextAuditEvent(T t) {
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List<AuditEventRecord<T>> auditEvents = getAuditEvents(t,1,0,AuditEventSort.FORWARDS, null);
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if(auditEvents.isEmpty()) {
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return null;
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} else {
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return auditEvents.get(0);
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}
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}
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@Override
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public AuditEventRecord<T> getPreviousAuditEvent(T t) {
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List<AuditEventRecord<T>> auditEvents = getAuditEvents(t,1,0,AuditEventSort.BACKWARDS, null);
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if(auditEvents.isEmpty()) {
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return null;
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} else {
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return auditEvents.get(0);
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}
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}
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@Override
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public long countAuditEvents(Class<? extends T> clazz, AuditEvent from, AuditEvent to, List<AuditCriterion> criteria) {
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AuditQuery query = null;
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if(clazz == null) {
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query = getAuditReader().createQuery().forRevisionsOfEntity(type, false, true);
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} else {
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query = getAuditReader().createQuery().forRevisionsOfEntity(clazz, false, true);
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}
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if(from != null) {
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query.add(AuditEntity.revisionNumber().ge(from.getRevisionNumber()));
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}
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if(to != null && !to.equals(AuditEvent.CURRENT_VIEW)) {
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query.add(AuditEntity.revisionNumber().lt(to.getRevisionNumber()));
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}
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addCriteria(query,criteria);
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query.addProjection(AuditEntity.revisionNumber().count());
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return (Long)query.getSingleResult();
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}
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protected void addCriteria(AuditQuery query, List<AuditCriterion> criteria) {
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if(criteria != null) {
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for(AuditCriterion c : criteria) {
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query.add(c);
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}
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}
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}
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@Override
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public List<AuditEventRecord<T>> getAuditEvents(Class<? extends T> clazz,AuditEvent from, AuditEvent to, List<AuditCriterion> criteria, Integer pageSize, Integer pageNumber, AuditEventSort sort, List<String> propertyPaths) {
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AuditQuery query = null;
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if(clazz == null) {
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query = getAuditReader().createQuery().forRevisionsOfEntity(type, false, true);
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} else {
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query = getAuditReader().createQuery().forRevisionsOfEntity(clazz, false, true);
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}
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if(from != null) {
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query.add(AuditEntity.revisionNumber().ge(from.getRevisionNumber()));
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}
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if(to != null && !to.equals(AuditEvent.CURRENT_VIEW)) {
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query.add(AuditEntity.revisionNumber().lt(to.getRevisionNumber()));
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}
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if(sort.equals(AuditEventSort.BACKWARDS)) {
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query.addOrder(AuditEntity.revisionNumber().desc());
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} else {
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query.addOrder(AuditEntity.revisionNumber().asc());
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}
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addCriteria(query,criteria);
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if(pageSize != null) {
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query.setMaxResults(pageSize);
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if(pageNumber != null) {
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query.setFirstResult(pageNumber * pageSize);
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} else {
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query.setFirstResult(0);
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}
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}
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/**
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* At the moment we need to transform the data manually
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*/
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364
|
@SuppressWarnings("unchecked")
|
|
365
|
List<Object[]> objs = query.getResultList();
|
|
366
|
List<AuditEventRecord<T>> records = new ArrayList<>();
|
|
367
|
|
|
368
|
for(Object[] obj : objs) {
|
|
369
|
records.add(new AuditEventRecordImpl<>(obj));
|
|
370
|
}
|
|
371
|
|
|
372
|
for(AuditEventRecord<T> record : records) {
|
|
373
|
defaultBeanInitializer.initialize(record.getAuditableObject(), propertyPaths);
|
|
374
|
}
|
|
375
|
return records;
|
|
376
|
}
|
|
377
|
|
|
378
|
@Override
|
|
379
|
protected long countByParam(Class<? extends T> clazz, String param, String queryString, MatchMode matchmode, List<Criterion> criterion) {
|
|
380
|
checkNotInPriorView("IdentifiableDaoBase.findByParam(Class<? extends T> clazz, String queryString, MatchMode matchmode, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths)");
|
|
381
|
return super.countByParam(clazz, param, queryString, matchmode, criterion);
|
|
382
|
}
|
|
383
|
|
|
384
|
@Override
|
|
385
|
public long count(T example, Set<String> includeProperties) {
|
|
386
|
this.checkNotInPriorView("count(T example, Set<String> includeProperties)");
|
|
387
|
return super.count(example, includeProperties);
|
|
388
|
}
|
|
389
|
|
|
390
|
@Override
|
|
391
|
public List<T> list(T example, Set<String> includeProperties, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths) {
|
|
392
|
this.checkNotInPriorView("list(T example, Set<String> includeProperties, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths) {");
|
|
393
|
return super.list(example, includeProperties, limit, start, orderHints, propertyPaths);
|
|
394
|
}
|
|
395
|
}
|