be.ugent.tiwi.sleroux.newsrec.stormNewsFetch.dao.mysqlImpl.MysqlNewsSourceDao.java Source code

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Here is the source code for be.ugent.tiwi.sleroux.newsrec.stormNewsFetch.dao.mysqlImpl.MysqlNewsSourceDao.java

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package be.ugent.tiwi.sleroux.newsrec.stormNewsFetch.dao.mysqlImpl;

/*
 * Copyright 2014 Sam Leroux <sam.leroux@ugent.be>.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import be.ugent.tiwi.sleroux.newsrec.stormNewsFetch.dao.DaoException;
import be.ugent.tiwi.sleroux.newsrec.stormNewsFetch.dao.INewsSourceDao;
import be.ugent.tiwi.sleroux.newsrec.stormNewsFetch.model.NewsSource;
import java.util.List;
import org.hibernate.Query;

/**
 * MySQL implementation of INewsSourceDao.
 *
 * @author Sam Leroux <sam.leroux@ugent.be>
 */
public class MysqlNewsSourceDao extends HibernateDaoTemplate implements INewsSourceDao {

    /**
     *
     * @return
     * @throws DaoException
     */
    @Override
    public NewsSource[] getSourcesToCheck() throws DaoException {
        startSession();
        Query query = session.createQuery(
                "from NewsSource where lastFetchTry = null or (lastFetchTry + fetchinterval < CURRENT_TIMESTAMP())");
        List<NewsSource> sources = query.list();
        stopSession();
        return sources.toArray(new NewsSource[sources.size()]);
    }

    /**
     *
     * @return
     * @throws DaoException
     */
    @Override
    public NewsSource[] getAllSources() throws DaoException {
        startSession();
        Query query = session.createQuery("from NewsSource");
        List<NewsSource> sources = query.list();
        stopSession();
        return sources.toArray(new NewsSource[sources.size()]);
    }

    /**
     *
     * @param source
     * @throws DaoException
     */
    @Override
    public void addNewsSource(NewsSource source) throws DaoException {
        startSession();
        session.saveOrUpdate(source);
        stopSession();
    }

    /**
     *
     * @param source
     * @throws DaoException
     */
    @Override
    public void updateNewsSource(NewsSource source) throws DaoException {
        startSession();
        session.update(source);
        stopSession();
    }

}