Example usage for org.hibernate Session clear

List of usage examples for org.hibernate Session clear

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Introduction

In this page you can find the example usage for org.hibernate Session clear.

Prototype

void clear();

Source Link

Document

Completely clear the session.

Usage

From source file:de.unisb.cs.st.javalanche.mutation.results.persistence.QueryManager.java

License:Open Source License

public static void saveMutations(Collection<Mutation> mutationsToSave) {
    Session session = openSession();
    Transaction tx = session.beginTransaction();
    int counter = 0;
    for (Mutation mutation : mutationsToSave) {
        if (getMutationOrNull(mutation, session) != null) {
            logger.debug("Not saving mutation. Mutation already in db " + mutation);
        } else {/*  w  w w  .  ja  v a2s .c  o  m*/
            counter++;
            if (counter % 1000 == 0) {
                session.flush();
                session.clear();
            }
            try {
                logger.debug(counter + ": Trying to save mutation :" + mutation);
                session.save(mutation);
            } catch (Exception e) {
                logger.warn("Exception thrown: " + e.getMessage());
                logger.info(Util.getStackTraceString());
                logger.info("Mutations to save: " + mutationsToSave);
                throw new RuntimeException(e);
            }
        }
    }
    tx.commit();
    session.close();

}

From source file:de.xatc.server.importdataprocessors.AirportProcessor.java

@Override
public void run() {

    if (!airportFile.exists()) {
        LOG.error("FirDetailList not found.... returning");
        return;/*from   www  . j a v a 2s. com*/
    }

    Session s = DBSessionManager.getSession();

    Transaction tx = s.beginTransaction();
    Query q = s.createQuery("delete from PlainAirport");
    q.executeUpdate();
    tx.commit();

    DBSessionManager.closeSession(s);

    s = DBSessionManager.getSession();

    try (BufferedReader br = new BufferedReader(new FileReader(airportFile))) {

        String line = null;
        while ((line = br.readLine()) != null) {

            boolean continueDueToErrors = false;

            if (StringUtils.isEmpty(line)) {
                continue;
            }

            String[] splitted = line.split(":");
            if (splitted.length != 6) {
                continue;
            }
            for (String st : splitted) {
                if (StringUtils.isEmpty(st)) {
                    LOG.trace(line + " Values in Line are empty.... continue");
                    continueDueToErrors = true;
                    break;
                }
            }
            if (continueDueToErrors) {
                continue;
            }
            PlainAirport airport = new PlainAirport();
            airport.setAirportIcao(splitted[0]);
            airport.setAirportName(splitted[1]);
            airport.setCityName(splitted[2]);
            airport.setCountryCode(splitted[3]);

            PlainNavPoint position = new PlainNavPoint();
            position.setLat(Double.parseDouble(splitted[4]));
            position.setLon(Double.parseDouble(splitted[5]));
            airport.setPosition(position);

            s.saveOrUpdate(airport);
            s.flush();
            s.clear();
            LOG.trace(line + "... imported");

        }
        DBSessionManager.closeSession(s);
        br.close();
    } catch (IOException e) {
        LOG.error(e.getLocalizedMessage());
        e.printStackTrace(System.err);
    }

}

From source file:de.xatc.server.importdataprocessors.CountryProcessor.java

@Override
public void run() {

    File countryCodes = new File(ServerConfig.getCountryCodesFile());
    if (!countryCodes.exists()) {
        LOG.error("CountryCodes File does not exist!");
        return;//  w ww.ja  v  a  2s  . c  o m
    }

    Session s = DBSessionManager.getSession();

    Transaction tx = s.beginTransaction();
    Query q = s.createQuery("delete from Country");
    q.executeUpdate();
    tx.commit();
    DBSessionManager.closeSession(s);

    s = DBSessionManager.getSession();

    try (BufferedReader br = new BufferedReader(new FileReader(countryCodes))) {
        String line;
        while ((line = br.readLine()) != null) {

            Country c = new Country();
            String[] splitted = line.split(":");
            if (splitted.length == 2) {

                LOG.trace(line + "... imported");
                c.setCountryCode(splitted[0]);
                c.setCountryName(splitted[1]);
                s.saveOrUpdate(c);
                s.flush();
                s.clear();

            }

        }
        DBSessionManager.closeSession(s);
        br.close();
        LOG.trace("Returning....");

    } catch (IOException e) {
        LOG.error(e.getLocalizedMessage());
        e.printStackTrace(System.err);
    }

}

From source file:de.xatc.server.importdataprocessors.FirAirportsProcessor.java

@Override
public void run() {

    Session s = DBSessionManager.getSession();

    List<Fir> firList = s.createCriteria(Fir.class).list();
    List<PlainAirport> airportList = s.createCriteria(PlainAirport.class).list();

    for (Fir fir : firList) {

        LOG.trace(fir.getFirName() + " " + fir.getFirNameIcao() + " " + fir.getPoligonList().size());

        ArrayList<PlainAirport> airportListInFir = FirNavigationalTools.findAirportsInFir(airportList,
                fir.getPoligonList());//from   w  ww . j  a v a2  s  .co m

        LOG.trace("Airports in FIR: " + airportListInFir.size());
        fir.setIncludedAirports(airportListInFir);
        s.saveOrUpdate(fir);
        s.flush();
        s.clear();
    }
    DBSessionManager.closeSession(s);

}

From source file:de.xatc.server.importdataprocessors.FirPoligonProcessor.java

@Override
public void run() {

    if (!firDetail.exists()) {
        LOG.error("FirDetailList not found.... returning");
        return;/*from  w  w w.j av a  2s  .c o m*/
    }

    Session s = DBSessionManager.getSession();

    List<Fir> firList = s.createCriteria(Fir.class).list();

    for (Fir fir : firList) {

        ArrayList<PlainNavPoint> poligonPoints = this.getFirPoligon(fir.getId());

        LOG.trace("FOUND POLIGONPOINTS: " + poligonPoints.size());
        fir.setPoligonList(poligonPoints);

        LOG.trace(fir.toString());
        s.saveOrUpdate(fir);
        s.flush();
        s.clear();

    }

    DBSessionManager.closeSession(s);

}

From source file:de.xatc.server.importdataprocessors.FirProcessor.java

@Override
public void run() {

    if (!firList.exists()) {
        LOG.warn("Firlist not found.... returning");
        return;// w  ww.j  ava 2  s  . co  m
    }

    Session s = DBSessionManager.getSession();

    Transaction tx = s.beginTransaction();
    Query q = s.createQuery("delete from Fir");
    q.executeUpdate();
    tx.commit();

    DBSessionManager.closeSession(s);

    s = DBSessionManager.getSession();
    int lineNumber = 0;

    try (BufferedReader br = new BufferedReader(new FileReader(firList))) {

        String line;
        while ((line = br.readLine()) != null) {

            boolean continueDueToErrors = false;
            lineNumber++;

            if (StringUtils.isEmpty(line)) {
                LOG.trace("Line is empty.... continue");
                continue;
            }
            Fir fir = new Fir();
            String[] splitted = line.split(":");

            for (String st : splitted) {
                if (StringUtils.isEmpty(st)) {
                    LOG.trace(line + " Values in Line are empty.... continue");
                    continueDueToErrors = true;
                    break;
                }
            }
            if (continueDueToErrors) {
                continue;
            }

            if (splitted.length == 6) {

                fir.setCountryCode(splitted[2]);
                fir.setFirName(splitted[1]);
                fir.setFirNameIcao(splitted[0]);
                PlainNavPoint position = new PlainNavPoint();
                position.setLat(Double.parseDouble(splitted[3]));
                position.setLon(Double.parseDouble(splitted[4]));
                fir.setPosition(position);

                fir.setId(Integer.parseInt(splitted[5]));

                s.saveOrUpdate(fir);
                s.flush();
                s.clear();
                LOG.trace(line + "... imported");

            }

        }
        DBSessionManager.closeSession(s);
        br.close();
        LOG.trace("Returning....");

    } catch (IOException e) {
        LOG.error(e.getLocalizedMessage());
        e.printStackTrace(System.err);
    }

}

From source file:dz.alkhwarizmix.framework.java.dao.impl.AbstractAlKhwarizmixDAO.java

License:Open Source License

private void clearHibernateCurrentSession() {
    final Session s = getHibernateCurrentSession();
    if (s != null)
        s.clear();
}

From source file:edu.amrita.aview.audit.daos.UserActionDAO.java

/**
 * Creates the user actions./*from   w  w w  .j a  v  a  2 s  .  c om*/
 *
 * @param actions the actions
 * @throws AViewException
 */
public static void createUserActions(List<UserAction> actions) throws AViewException {
    Session session = null;
    try {
        session = HibernateUtils.getAuditHibernateConnection();
        session.beginTransaction();
        int counter = 0;
        for (UserAction action : actions) {
            session.save(action);
            counter++;
            if (counter % HibernateUtils.HIBERNATE_BATCH_SIZE == 0) {
                session.flush();
                session.clear();
            }
        }

        session.getTransaction().commit();
    } catch (HibernateException he) {
        processException(he);
        session.getTransaction().rollback();
    } finally {
        HibernateUtils.closeConnection(session);
    }
}

From source file:edu.emory.library.tast.spss.Import.java

License:Open Source License

private void importData() throws IOException {

    RecordReader voyagesRdr = recordIOFactory.createReader(dataFileName);

    int recordNo = 0;
    Record voyageRecord = null;/*from   w w  w.  ja v a2 s  .  c o m*/

    Session sess = HibernateConn.getSession();
    Transaction transaction = sess.beginTransaction();

    while ((voyageRecord = voyagesRdr.readRecord()) != null) {

        long t1 = System.currentTimeMillis();

        AbstractDescriptiveObject obj = objectFactory.newInstance();
        updateValues(sess, obj, voyageRecord, ++recordNo);

        obj.saveOrUpdate(sess);

        if (recordNo % FLUSH_INTERVAL == 0) {
            sess.flush();
            sess.clear();
        }

        long t2 = System.currentTimeMillis();

        System.out.println("vid = " + voyageRecord.getKey() + " " + (t2 - t1) + " ms");

    }

    transaction.commit();
    sess.close();

}

From source file:edu.scripps.fl.pipeline.CommitStage.java

License:Apache License

@Override
public void process(Object obj) throws StageException {
    try {//from w  ww. java 2s  .com
        Session session = getSession();
        int count = counter.incrementAndGet();
        doSave(obj);
        if (count % getCommitFrequency() == 0) {
            getTransaction().commit();
            session.clear();
            setTransaction(session.beginTransaction());
        }
    } catch (Exception ex) {
        throw new StageException(this, ex);
    }
}