/*
* 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.calendars.daos;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.lang.StringUtils;
import org.hibernate.Criteria;
import org.hibernate.criterion.Restrictions;
import org.libreplan.business.calendars.entities.BaseCalendar;
import org.libreplan.business.calendars.entities.CalendarData;
import org.libreplan.business.calendars.entities.ResourceCalendar;
import org.libreplan.business.common.daos.IntegrationEntityDAO;
import org.libreplan.business.common.exceptions.ValidationException;
import org.libreplan.business.orders.entities.Order;
import org.libreplan.business.planner.entities.TaskElement;
import org.libreplan.business.resources.entities.Resource;
import org.libreplan.business.templates.entities.OrderTemplate;
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;
/**
* DAO for {@link BaseCalendar}
*
* @author Manuel Rego Casasnovas <mrego@igalia.com>
* @author Fernando Bellas Permuy <fbellas@udc.es>
* @author Diego Pino García <dpino@igalia.com>
*/
@Repository
@Scope(BeanDefinition.SCOPE_SINGLETON)
public class BaseCalendarDAO extends IntegrationEntityDAO<BaseCalendar>
implements IBaseCalendarDAO {
@Override
public List<BaseCalendar> getBaseCalendars() {
List<BaseCalendar> list = list(BaseCalendar.class);
removeResourceCalendarInstances(list);
Collections.sort(list);
return list;
}
private void removeResourceCalendarInstances(List<BaseCalendar> list) {
for (Iterator<BaseCalendar> iterator = list.iterator(); iterator
.hasNext();) {
BaseCalendar baseCalendar = iterator.next();
if (baseCalendar instanceof ResourceCalendar) {
iterator.remove();
}
}
}
@Override
public List<BaseCalendar> findByParent(BaseCalendar baseCalendar) {
if (baseCalendar == null) {
return new ArrayList<BaseCalendar>();
}
Criteria c = getSession().createCriteria(BaseCalendar.class)
.createCriteria("calendarDataVersions", "v");
c.add(Restrictions.eq("v.parent", baseCalendar));
List<BaseCalendar> list = (List<BaseCalendar>) c.list();
removeResourceCalendarInstances(list);
return list;
}
@Override
public List<BaseCalendar> findByName(BaseCalendar baseCalendar) {
if (baseCalendar == null) {
return new ArrayList<BaseCalendar>();
}
return findByName(baseCalendar.getName());
}
@Override
public List<BaseCalendar> findByName(String name) {
if (StringUtils.isBlank(name)) {
return new ArrayList<BaseCalendar>();
}
Criteria c = getSession().createCriteria(BaseCalendar.class);
c.add(Restrictions.eq("name", name).ignoreCase());
List<BaseCalendar> list = (List<BaseCalendar>) c.list();
removeResourceCalendarInstances(list);
return list;
}
@Transactional(propagation = Propagation.REQUIRES_NEW, readOnly = true)
@Override
public boolean thereIsOtherWithSameName(BaseCalendar baseCalendar) {
List<BaseCalendar> withSameName = findByName(baseCalendar);
if (withSameName.isEmpty()) {
return false;
}
if (withSameName.size() > 1) {
return true;
}
return areDifferentInDB(withSameName.get(0), baseCalendar);
}
private boolean areDifferentInDB(BaseCalendar one, BaseCalendar other) {
if ((one.getId() == null) || (other.getId() == null)) {
return true;
}
return !one.getId().equals(other.getId());
}
@Override
public void checkIsReferencedByOtherEntities(BaseCalendar calendar) {
checkHasResources(calendar);
checkHasOrders(calendar);
checkHasTasks(calendar);
checkHasTemplates(calendar);
}
/**
* A {@link BaseCalendar} is being used by a {@link Resource} if there is
* some {@link CalendarData} which belongs to a {@link ResourceCalendar} and
* has as a parent the parameter calendar
*
* @param calendar
*/
private void checkHasResources(BaseCalendar calendar) {
List calendars = getSession().createCriteria(ResourceCalendar.class)
.createCriteria("calendarDataVersions", "calendarData")
.add(Restrictions.eq("calendarData.parent", calendar)).list();
if (!calendars.isEmpty()) {
throw ValidationException
.invalidValueException(
"Cannot delete calendar. It is being used at this moment by some resources.",
calendar);
}
}
private void checkHasOrders(BaseCalendar calendar) {
List orders = getSession().createCriteria(Order.class)
.add(Restrictions.eq("calendar", calendar)).list();
if (!orders.isEmpty()) {
throw ValidationException
.invalidValueException(
"Cannot delete calendar. It is being used at this moment by some orders.",
calendar);
}
}
private void checkHasTasks(BaseCalendar calendar) {
List tasks = getSession().createCriteria(TaskElement.class)
.add(Restrictions.eq("calendar", calendar)).list();
if (!tasks.isEmpty()) {
throw ValidationException
.invalidValueException(
"Cannot delete calendar. It is being used at this moment by some tasks.",
calendar);
}
}
private void checkHasTemplates(BaseCalendar calendar) {
List templates = getSession().createCriteria(OrderTemplate.class)
.add(Restrictions.eq("calendar", calendar)).list();
if (!templates.isEmpty()) {
throw ValidationException
.invalidValueException(
"Cannot delete calendar. It is being used at this moment by some templates.",
calendar);
}
}
}