de.tuclausthal.submissioninterface.persistence.dao.impl.SimilarityTestDAO.java Source code

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Here is the source code for de.tuclausthal.submissioninterface.persistence.dao.impl.SimilarityTestDAO.java

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/*
 * Copyright 2009 - 2010 Sven Strickroth <email@cs-ware.de>
 * 
 * This file is part of the SubmissionInterface.
 * 
 * SubmissionInterface is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 * 
 * SubmissionInterface 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 SubmissionInterface. If not, see <http://www.gnu.org/licenses/>.
 */

package de.tuclausthal.submissioninterface.persistence.dao.impl;

import java.util.Date;

import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Restrictions;

import de.tuclausthal.submissioninterface.persistence.dao.SimilarityTestDAOIf;
import de.tuclausthal.submissioninterface.persistence.datamodel.SimilarityTest;
import de.tuclausthal.submissioninterface.persistence.datamodel.Task;
import de.tuclausthal.submissioninterface.util.Util;

public class SimilarityTestDAO extends AbstractDAO implements SimilarityTestDAOIf {

    public SimilarityTestDAO(Session session) {
        super(session);
    }

    @Override
    public SimilarityTest addSimilarityTest(Task task, String type, String basis, boolean normalizeCapitalization,
            String tabsSpacesNewlinesNormalization, int minimumDifferenceInPercent, String excludeFiles) {
        Session session = getSession();
        SimilarityTest similarityTest = new SimilarityTest(task, type, basis, normalizeCapitalization,
                tabsSpacesNewlinesNormalization, minimumDifferenceInPercent, excludeFiles);
        session.save(similarityTest);
        return similarityTest;
    }

    @Override
    public void deleteSimilarityTest(SimilarityTest similarityTest) {
        Session session = getSession();
        session.update(similarityTest);
        session.delete(similarityTest);
    }

    @Override
    public void resetSimilarityTest(SimilarityTest similarityTest) {
        Session session = getSession();
        Transaction tx = session.beginTransaction();
        Query query = session
                .createQuery("delete from Similarity similarity where similarity.similarityTest=:SIMTEST");
        query.setEntity("SIMTEST", similarityTest);
        query.executeUpdate();
        tx.commit();
    }

    @Override
    public SimilarityTest getSimilarityTest(int similarityTestId) {
        return (SimilarityTest) getSession().get(SimilarityTest.class, similarityTestId);
    }

    @Override
    public SimilarityTest getSimilarityTestLocked(int similarityTestId) {
        return (SimilarityTest) getSession().get(SimilarityTest.class, similarityTestId, LockMode.UPGRADE);
    }

    @Override
    public SimilarityTest takeSimilarityTest() {
        Session session = getSession();
        Transaction tx = session.beginTransaction();
        SimilarityTest similarityTest = (SimilarityTest) session.createCriteria(SimilarityTest.class)
                .add(Restrictions.eq("status", 1)).setLockMode(LockMode.UPGRADE).createCriteria("task")
                .add(Restrictions.le("deadline", Util.correctTimezone(new Date()))).setMaxResults(1).uniqueResult();
        if (similarityTest != null) {
            similarityTest.setStatus(2);
            session.save(similarityTest);
        }
        tx.commit();
        return similarityTest;
    }

    @Override
    public void saveSimilarityTest(SimilarityTest similarityTest) {
        Session session = getSession();
        session.update(similarityTest);
    }

    @Override
    public void finish(SimilarityTest similarityTest) {
        Session session = getSession();
        Transaction tx = session.beginTransaction();
        SimilarityTest TheSimilarityTest = getSimilarityTestLocked(similarityTest.getSimilarityTestId());
        if (TheSimilarityTest != null) {
            TheSimilarityTest.setStatus(0);
            session.save(TheSimilarityTest);
        }
        tx.commit();
    }
}