SitePageFacade.java
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package fi.codecrew.moya.facade;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import javax.ejb.EJB;
import javax.ejb.Stateless;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.ListJoin;
import javax.persistence.criteria.Path;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import fi.codecrew.moya.beans.EventBeanLocal;
import fi.codecrew.moya.model.EventUser;
import fi.codecrew.moya.model.PageContent;
import fi.codecrew.moya.model.PageContent_;
import fi.codecrew.moya.model.Role;
import fi.codecrew.moya.model.Role_;
import fi.codecrew.moya.model.SitePage;
import fi.codecrew.moya.model.SitePage_;
@Stateless
public class SitePageFacade extends IntegerPkGenericFacade<SitePage> {
@EJB
private EventBeanLocal eventbean;
private static final Logger logger = LoggerFactory.getLogger(SitePageFacade.class);
public SitePageFacade() {
super(SitePage.class);
}
// public SitePage find(String siteName) {
// CriteriaBuilder cb = getEm().getCriteriaBuilder();
// CriteriaQuery<SitePage> cq = cb.createQuery(SitePage.class);
// Root<SitePage> root = cq.from(SitePage.class);
//
// cq.where(cb.equal(root.get(SitePage_.name), siteName),
// cb.equal(root.get(SitePage_.event), eventbean.getCurrentEvent())
//
// );
// return getSingleNullableResult(getEm().createQuery(cq));
// }
public List<SitePage> findForUser(EventUser user, SitePage siteroot) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<SitePage> cq = cb.createQuery(SitePage.class);
Root<SitePage> root = cq.from(SitePage.class);
ListJoin<Role, EventUser> usrpath = root.join(SitePage_.allowedRoles).join(Role_.users);
Path<SitePage> parentpath = root.get(SitePage_.parent);
Predicate rootpred = null;
if (siteroot == null)
{
rootpred = cb.isNull(parentpath);
}
else
{
rootpred = cb.equal(parentpath, siteroot);
}
cq.where(
cb.equal(usrpath, user),
rootpred,
cb.equal(root.get(SitePage_.event), eventbean.getCurrentEvent())
);
return getEm().createQuery(cq).getResultList();
}
public List<SitePage> findAll()
{
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<SitePage> cq = cb.createQuery(SitePage.class);
Root<SitePage> root = cq.from(SitePage.class);
cq.where(
cb.isNull(root.get(SitePage_.parent)),
cb.equal(root.get(SitePage_.event), eventbean.getCurrentEvent())
);
return getEm().createQuery(cq).getResultList();
}
public SitePage find(Integer id, List<Role> require) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<SitePage> cq = cb.createQuery(SitePage.class);
Root<SitePage> root = cq.from(SitePage.class);
cq.where(
cb.equal(root.get(SitePage_.id), id),
root.get(SitePage_.allowedRoles).in(require)
);
return getSingleNullableResult(getEm().createQuery(cq));
}
public List<PageContent> findContents(SitePage page, Date now, Locale locale) {
logger.info("Getting pageContents for locale {}", locale);
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<PageContent> cq = cb.createQuery(PageContent.class);
Root<PageContent> root = cq.from(PageContent.class);
Path<SitePage> sitepath = root.get(PageContent_.sitepage);
Path<Date> expirepath = root.get(PageContent_.expire);
Path<Date> publishpath = root.get(PageContent_.publish);
cq.where(
cb.equal(sitepath, page),
cb.or(cb.isNull(publishpath), cb.greaterThan(publishpath, now)),
cb.or(cb.isNull(expirepath), cb.lessThan(expirepath, now))
);
cq.orderBy(cb.desc(root.get(PageContent_.sort)));
ArrayList<PageContent> ret = new ArrayList<>(getEm().createQuery(cq).getResultList());
if (locale != null) {
final String localeLang = locale.getLanguage();
for (Iterator<PageContent> contIter = ret.iterator(); contIter.hasNext();) {
PageContent content = contIter.next();
// Show only if language equals or is null
Locale contLocale = content.getLocaleObject();
if (contLocale != null && !localeLang.equals(contLocale.getLanguage())) {
logger.info("Removing content with lang {} (comparing to {}) ", contLocale, locale);
contIter.remove();
}
}
}
return ret;
}
public SitePage find(String name) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<SitePage> cq = cb.createQuery(SitePage.class);
Root<SitePage> root = cq.from(SitePage.class);
cq.where(cb.equal(root.get(SitePage_.event), eventbean.getCurrentEvent()),
cb.equal(root.get(SitePage_.name), name)
);
return super.getSingleNullableResult(getEm().createQuery(cq));
}
}