net.craigstars.dao.impl.UserSessionDataDaoImpl.java Source code

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Here is the source code for net.craigstars.dao.impl.UserSessionDataDaoImpl.java

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/**
 * 
 * CraigStars!
 * 
 * Copyright (c) 2010 Craig Post Licensed under the MIT license.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 * associated documentation files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
 * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 * 
 */
package net.craigstars.dao.impl;

import net.craigstars.dao.UserSessionDataDao;
import net.craigstars.dao.lib.GenericDaoHibernate;
import net.craigstars.model.User;
import net.craigstars.model.UserSessionData;

import org.hibernate.Criteria;
import org.hibernate.criterion.Restrictions;
import org.joda.time.DateTime;
import org.joda.time.Duration;

public class UserSessionDataDaoImpl extends GenericDaoHibernate<UserSessionData, Long>
        implements UserSessionDataDao {

    @SuppressWarnings("unchecked")
    public UserSessionData get(String uuid) {
        Criteria crit = getSession().createCriteria(getPersistentClass());
        crit.add(Restrictions.eq("uuid", uuid));

        return getFirstOrNull(crit.list());
    }

    public void delete(String uuid) {
        delete(get(uuid));
    }

    public UserSessionData create(User user) {
        return save(new UserSessionData(user));
    }

    /**
     * Purge all the records that are older than (now - days)
     */
    public void purgeOlderThan(int days) {
        Criteria crit = getSession().createCriteria(getPersistentClass());
        DateTime daysAgo = new DateTime();
        daysAgo = daysAgo.minus(Duration.standardDays(days));
        crit.add(Restrictions.le("createDate", daysAgo));
        for (Object obj : crit.list()) {
            getSession().delete(obj);
        }
    }

}