org.libreplan.business.users.daos.UserLevelDAO.java Source code

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Here is the source code for org.libreplan.business.users.daos.UserLevelDAO.java

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/*
 * This file is part of LibrePlan
 *
 * Copyright (C) 2009-2010 Fundacin para o Fomento da Calidade Industrial e
 *                         Desenvolvemento Tecnolxico de Galicia
 * Copyright (C) 2010-2012 Igalia, S.L.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.libreplan.business.users.daos;

import org.joda.time.LocalDate;

import java.util.LinkedList;
import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;
import org.libreplan.business.common.daos.GenericDAOHibernate;
import org.libreplan.business.users.entities.User;
import org.libreplan.business.users.entities.UserLevel;
import org.libreplan.business.users.entities.UserLevel;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

/**
 * Hibernate DAO for the <code>UserLevel</code> entity.
 *
 * @author Dergen Lee
 *
 */
@Repository
public class UserLevelDAO extends GenericDAOHibernate<UserLevel, Long> implements IUserLevelDAO {

    @Override
    public UserLevel findByUser(User user) {
        return findByUser(user, LocalDate.now());
    }

    @Override
    @SuppressWarnings("unchecked")
    public UserLevel findByUser(User user, LocalDate date) {
        Criteria c = getSession().createCriteria(UserLevel.class).add(Restrictions.eq("user", user))
                .add(Restrictions.or(Restrictions.isNull("fromDate"), Restrictions.le("fromDate", date)))
                .add(Restrictions.or(Restrictions.isNull("toDate"), Restrictions.ge("toDate", date)))
                .addOrder(Order.desc("fromDate"));
        List<UserLevel> lvls = c.list();
        return lvls.size() == 0 ? null : lvls.get(0);
    }

    @Override
    @SuppressWarnings("unchecked")
    public List<UserLevel> getLevelHistories(User user) {
        List<UserLevel> result;
        if (user != null) {
            Criteria c = getSession().createCriteria(UserLevel.class).add(Restrictions.eq("user", user))
                    .addOrder(Order.desc("fromDate"));
            result = c.list();
        } else {
            result = new LinkedList<UserLevel>();
        }
        return result;
    }

    @Override
    public int findLevelOf(User user) {
        return findLevelOf(user, LocalDate.now());
    }

    @Override
    @Transactional(readOnly = true, propagation = Propagation.REQUIRES_NEW)
    public int findLevelOf(User user, LocalDate date) {
        UserLevel ul = findByUser(user, date);
        return (ul == null || ul.getLevel() == null) ? UserLevel.LOWESTLEVEL : ul.getLevel();
    }
}