com.tysanclan.site.projectewok.entities.dao.hibernate.MembershipStatusChangeDAOImpl.java Source code

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Here is the source code for com.tysanclan.site.projectewok.entities.dao.hibernate.MembershipStatusChangeDAOImpl.java

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/**
 * Tysan Clan Website
 * Copyright (C) 2008-2013 Jeroen Steenbeeke and Ties van de Ven
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.tysanclan.site.projectewok.entities.dao.hibernate;

import java.util.Comparator;
import java.util.Date;
import java.util.List;
import java.util.SortedMap;
import java.util.TreeMap;

import org.hibernate.Criteria;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;

import com.jeroensteenbeeke.hyperion.data.SearchFilter;
import com.tysanclan.site.projectewok.dataaccess.EwokHibernateDAO;
import com.tysanclan.site.projectewok.entities.MembershipStatusChange;
import com.tysanclan.site.projectewok.entities.dao.MembershipStatusChangeDAO;

/**
 * @author Jeroen Steenbeeke
 */
@Component
@Scope("request")
class MembershipStatusChangeDAOImpl extends EwokHibernateDAO<MembershipStatusChange>
        implements com.tysanclan.site.projectewok.entities.dao.MembershipStatusChangeDAO {

    @Override
    protected Criteria createCriteria(SearchFilter<MembershipStatusChange> filter) {
        return getSession().createCriteria(MembershipStatusChangeDAO.class);
    }

    @Override
    public SortedMap<Date, Long> getMutationsByDate(Date start, Date end) {
        Criteria criteria = getSession().createCriteria(MembershipStatusChange.class);

        if (start != null)
            criteria.add(Restrictions.ge("changeTime", start));

        if (end != null)
            criteria.add(Restrictions.le("changeTime", end));

        criteria.setProjection(Projections.projectionList().add(Projections.property("changeTime"))
                .add(Projections.sum("memberSizeMutation")));

        List<Object[]> results = listOf(criteria);

        SortedMap<Date, Long> map = new TreeMap<Date, Long>(new Comparator<Date>() {
            @Override
            public int compare(Date d1, Date d2) {
                return -d1.compareTo(d2);
            }
        });

        for (Object[] res : results) {
            Date date = (Date) res[0];
            Long sum = (Long) res[1];

            map.put(date, sum);
        }

        return map;
    }
}