RoleRightFacade.java

package fi.insomnia.bortal.facade;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;

import fi.insomnia.bortal.enums.Permission;
import fi.insomnia.bortal.model.Role;
import fi.insomnia.bortal.model.RoleRight;

@Stateless
@LocalBean
public class RoleRightFacade extends EventChildGenericFacade<RoleRight> {

    @PersistenceContext
    private EntityManager em;

    public RoleRightFacade() {
        super(RoleRight.class);
    }

    protected EntityManager getEm() {
        return em;
    }

    public RoleRight find(Permission permission, Role role) {
        TypedQuery<RoleRight> q = this.getEm().createNamedQuery("RoleRight.findByRightAndRole", RoleRight.class);
        q.setParameter("permission", permission);
        q.setParameter("role", role);
        return getSingleNullableResult(q);
    }

    public List<RoleRight> find(Collection<Role> roles, Permission permission) {
        if(roles.size() == 0)
        {
            return new ArrayList<RoleRight>();
        }
        TypedQuery<RoleRight> q = getEm().createNamedQuery("RoleRight.findByRolesForPermission", RoleRight.class);
        Set<Integer> roleids = new HashSet<Integer>();
        
        for(Role r: roles)
        {
            roleids.add(r.getId().getId());
        }
        Integer eventId = roles.iterator().next().getEvent().getId();

        q.setParameter("eventId", eventId);
        q.setParameter("roleids", roleids);
        q.setParameter("permission", permission);
        return q.getResultList();
    }

    public RoleRight createRoleRight(Role role, Permission perm) {
        RoleRight ret = new RoleRight(role, perm, false, false, false);
        create(ret);
        getEm().flush();
        return ret;

    }

}