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package com.megatim.fdxconsultation.dao.impl.referentiel;

import com.megatim.fdxcommons.model.referentiel.GroupeNoeud;
import com.megatim.fdxconsultation.dao.ifaces.referentiel.GroupeNoeudDAO;
import java.util.Optional;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

/**
 *
 * @author ASUS
 */
@Stateless
public class GroupeNoeudDAOImpl implements GroupeNoeudDAO {

    @PersistenceContext(unitName = "fdxConsultationPersistenceUnit")
    protected EntityManager em;

    public GroupeNoeudDAOImpl() {
    }

    @Override
    public EntityManager getEntityManager() {
        return em;
    }

    @Override
    public Class<GroupeNoeud> getManagedEntityClass() {
        return (GroupeNoeud.class);
    }

    @Override
    public GroupeNoeud getById(String id) {
        Query query = em.createQuery("SELECT gn FROM GroupeNoeud gn"
                + " LEFT JOIN FETCH gn.noeuds LEFT JOIN FETCH gn.routageEnvois LEFT JOIN FETCH gn.routageReceptions"
                + " WHERE gn.code = :code");
        query.setParameter("code", id);

        Optional<GroupeNoeud> optionalGroupeNoeud = query.getResultList().stream().findFirst();

        if (optionalGroupeNoeud.isPresent()) {
            return optionalGroupeNoeud.get();
        } else {
            return null;
        }
    }
}