/*******************************************************************************
* Copyright (c) 2011 Michael Ruflin, Andr� Locher, Claudia von Bastian.
*
* This file is part of Tatool.
*
* Tatool is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Tatool is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Tatool. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package ch.tatool.app.service.impl;
import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Property;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ch.tatool.app.data.ModuleImpl;
import ch.tatool.app.data.ModuleSessionImpl;
import ch.tatool.data.Module;
import ch.tatool.data.ModuleSession;
import ch.tatool.data.Trial;
import ch.tatool.element.Node;
/**
* Property access object for module objects.
*
* @author Michael Ruflin
*/
public class TrialDAO {
private SessionFactory sessionFactory;
Logger logger = LoggerFactory.getLogger(TrialDAO.class);
/** Get a list of all sessions. */
@SuppressWarnings("unchecked")
public List<Trial> loadAllTrials(final ModuleImpl module) {
String queryString = "select trial from TrialImpl trial where trial.session.module = :module";
Query query = sessionFactory.getCurrentSession().createQuery(
queryString);
query.setParameter("module", module);
return (List<Trial>) query.list();
}
/** Get all trials for a given session. */
@SuppressWarnings("unchecked")
public List<Trial> getTrials(final ModuleSession moduleSession) {
sessionFactory.getCurrentSession().update(moduleSession);
Query query = sessionFactory.getCurrentSession().createQuery("select trial from TrialImpl trial where trial.session = :session order by trial.id");
query.setParameter("session", moduleSession);
List<Trial> trials = (List<Trial>) query.list();
// make sure we set the moduleSession correctly
for (Trial t : trials) {
t.setSession(moduleSession);
}
return trials;
}
/** Get all trials for a given session. */
@SuppressWarnings("unchecked")
public List<Trial> getTrials(final ModuleImpl module, final ModuleSession moduleSession, final String elementNameLike, final String propertyNameLike, final int offset, final int maxResults) {
if (elementNameLike == null && propertyNameLike == null) {
throw new RuntimeException(
"Either elementName or propertyName needs to be non-null");
}
sessionFactory.getCurrentSession().update(module);
if (moduleSession != null) {
sessionFactory.getCurrentSession().update(moduleSession);
}
StringBuilder q = new StringBuilder();
q.append("select distinct(trial) from TrialImpl trial ");
q.append(" join trial.entriesImpl as entry where ");
if (moduleSession != null) {
q.append(" trial.session = :session ");
} else {
q.append(" trial.session.module = :module ");
}
if (elementNameLike != null) {
q.append(" and entry.nodeId like :elementName");
}
if (propertyNameLike != null) {
q.append(" and entry.name like :propName");
}
// sort reverse
q.append(" order by trial.id DESC");
// create the query and set the various parameters
Query query = sessionFactory.getCurrentSession().createQuery(
q.toString());
if (moduleSession != null) {
query.setParameter("session", moduleSession);
} else {
query.setParameter("module", module);
}
if (elementNameLike != null) {
query.setParameter("elementName", elementNameLike);
}
if (propertyNameLike != null) {
query.setParameter("propName", propertyNameLike);
}
// limit results if requested
if (offset > 0) {
query.setFirstResult(offset);
}
if (maxResults > -1) {
query.setMaxResults(maxResults);
}
List<Trial> trials = (List<Trial>) query.list();
// make sure we set the moduleSession correctly
if (moduleSession != null) {
for (Trial t : trials) {
t.setSession(moduleSession);
}
}
return trials;
}
/** Get the last trial index for a given session. */
@SuppressWarnings("unchecked")
public int getLastTrialIndex(final ModuleSession moduleSession) {
Query query = sessionFactory
.getCurrentSession()
.createQuery(
"select max(trial.index) from TrialImpl trial where trial.session = :session");
query.setParameter("session", moduleSession);
List<Integer> index = (List<Integer>) query.list();
if (index != null && index.isEmpty()) {
return 0;
} else {
return index.get(0);
}
}
/** Persist a trial. */
public void saveTrial(Module module, ModuleSession session, Trial trial) {
ModuleSessionImpl sessionImpl = (ModuleSessionImpl) session;
if (trial.getId() == null) {
sessionFactory.getCurrentSession().update(session);
trial.setSession(session);
sessionImpl.getTrials().add(trial);
trial.setIndex(sessionImpl.getTrials().indexOf(trial));
sessionFactory.getCurrentSession().save(trial);
} else {
sessionFactory.getCurrentSession().update(trial);
}
}
/** Delete a trial object. */
public void deleteTrial(Module module, ModuleSession session, Trial trial) {
Iterator<Trial> it = ((ModuleSessionImpl) session).getTrials()
.iterator();
while (it.hasNext()) {
Trial t = it.next();
if (t.getId().equals(trial.getId())) {
it.remove();
}
}
sessionFactory.getCurrentSession().delete(trial);
}
@SuppressWarnings("unchecked")
public List<Trial> getTrials(ModuleSession session, Node node, int maxResults) {
List<Trial> trials = null;
DetachedCriteria criteria = DetachedCriteria.forClass(Trial.class);
// limit the session
if (session != null) {
criteria.add(Property.forName("session").eq(session));
}
// limit the element
if (node != null) {
criteria.add(Property.forName("nodeId").eq(node.getId()));
}
// get the last trial as first
criteria.addOrder(Order.desc("id"));
// find the trials
trials = (List<Trial>) criteria.getExecutableCriteria(sessionFactory.getCurrentSession()).setMaxResults(maxResults).list();
return trials;
}
/**
* Get all distinct trial property names for a module.
*
* @return An array with [0] containing the item name, [1] the property name
*/
@SuppressWarnings("unchecked")
public List<Object[]> findDistinctTrialPropertyNames(final ModuleImpl module) {
StringBuilder queryString = new StringBuilder();
queryString
.append("Select distinct(entry.nodeId), entry.name")
.append(" from TrialImpl trial left join trial.entriesImpl entry")
.append(" where trial.session.module = :module")
.append(" and entry.nodeId is not NULL")
.append(" order by entry.nodeId, entry.name");
// put together the complete query
Query query = sessionFactory.getCurrentSession().createQuery(
queryString.toString());
query.setParameter("module", module);
// and get the results
return (List<Object[]>) query.list();
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
}