/**
 * Abiquo community edition
 * cloud management application for hybrid clouds
 * Copyright (C) 2008-2010 - Abiquo Holdings S.L.
 *
 * This application 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 under
 * version 3 of the License
 *
 * This software 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 v.3 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

package com.abiquo.server.core.appslibrary;

import javax.persistence.EntityManager;

import org.hibernate.Criteria;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;
import org.springframework.stereotype.Repository;

import com.abiquo.server.core.common.persistence.DefaultDAOBase;
import com.abiquo.server.core.enterprise.Enterprise;

@Repository("jpaAppsLibraryDAO")
public class AppsLibraryDAO extends DefaultDAOBase<Integer, AppsLibrary>
{
    public AppsLibraryDAO()
    {
        super(AppsLibrary.class);
    }

    public AppsLibraryDAO(final EntityManager entityManager)
    {
        super(AppsLibrary.class, entityManager);
    }

    public AppsLibrary findByEnterprise(final Enterprise enterprise)
    {
        Criteria criteria = createCriteria(sameEnterprise(enterprise));
        criteria.addOrder(Order.asc(AppsLibrary.ENTERPRISE_PROPERTY));

        return (AppsLibrary) criteria.uniqueResult();
    }

    public AppsLibrary findByEnterpriseOrInitialize(final Enterprise enterprise)
    {
        AppsLibrary appsLib = findByEnterprise(enterprise);

        if (appsLib == null)
        {
            appsLib = new AppsLibrary(enterprise);
            persist(appsLib);
        }

        return appsLib;
    }

    private static Criterion sameEnterprise(final Enterprise enterprise)
    {
        return Restrictions.eq(AppsLibrary.ENTERPRISE_PROPERTY, enterprise);
    }

}