/*
 * This file is part of LibrePlan
 *
 * Copyright (C) 2009-2010 Fundación para o Fomento da Calidade Industrial e
 *                         Desenvolvemento Tecnolóxico de Galicia
 * Copyright (C) 2010-2011 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.resources.daos;

import java.util.List;

import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.libreplan.business.common.daos.IntegrationEntityDAO;
import org.libreplan.business.common.exceptions.InstanceNotFoundException;
import org.libreplan.business.resources.entities.Machine;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;


/**
 * Hibernate DAO for the <code>Machine</code> entity.
 *
 * @author Diego Pino Garcia <dpino@igalia.com>
 * @author Javier Moran Rua <jmoran@igalia.com>
 * @author Fernando Bellas Permuy <fbellas@udc.es>
 */
@Repository
@Scope(BeanDefinition.SCOPE_SINGLETON)
public class MachineDAO extends IntegrationEntityDAO<Machine>
    implements IMachineDAO {

    @Override
    public List<Machine> getAll() {
        return list(Machine.class);
    }

    @SuppressWarnings("unchecked")
    @Override
    public List<Machine> findByNameOrCode(String name, boolean limitingResource) {
        final String containsName = "%" + name + "%";
        return getSession().createCriteria(Machine.class).add(
                Restrictions.and(
                        Restrictions.eq("limitingResource",limitingResource),
                        Restrictions.or(
                                Restrictions.ilike("name", containsName),
                                Restrictions.ilike("code", containsName)))).list();
    }

    @Override
    public Machine findUniqueByCode(String code)
            throws InstanceNotFoundException {

        return findExistingEntityByCode(code);

    }

    @Override
    @Transactional(readOnly= true, propagation = Propagation.REQUIRES_NEW)
    public boolean existsMachineWithCodeInAnotherTransaction(String code) {
        try {
            findUniqueByCode(code);
            return true;
        } catch (InstanceNotFoundException e) {
            return false;
        }
    }

    @Override
    @Transactional(readOnly= true, propagation = Propagation.REQUIRES_NEW)
    public Machine findUniqueByCodeInAnotherTransaction(String code)
            throws InstanceNotFoundException {
        return findUniqueByCode(code);
    }

}