Example usage for javax.persistence EntityTransaction begin

List of usage examples for javax.persistence EntityTransaction begin

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Introduction

In this page you can find the example usage for javax.persistence EntityTransaction begin.

Prototype

public void begin();

Source Link

Document

Start a resource transaction.

Usage

From source file:org.apache.juddi.subscription.SubscriptionNotifier.java

/**
 * Deletes the subscription. i.e. when it is expired.
 * @param subscription//from ww w . ja  v a  2  s .c o  m
 */
protected void deleteSubscription(Subscription subscription) {
    EntityManager em = PersistenceManager.getEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {
        tx.begin();
        em.remove(subscription);
        tx.commit();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        em.close();
    }
}

From source file:org.eclipse.smila.binarystorage.persistence.jpa.JPABinaryPersistence.java

/**
 * {@inheritDoc}//  ww w .jav  a  2  s.  c  o m
 *
 * @see org.eclipse.smila.binarystorage.internal.impl.persistence.BinaryPersistence#deleteBinary(java.lang.String)
 */
@Override
public void deleteBinary(final String key) throws BinaryStorageException {
    if (key == null) {
        throw new BinaryStorageException("parameter key is null");
    }
    _lock.readLock().lock();
    try {
        final EntityManager em = createEntityManager();
        try {
            final BinaryStorageDao dao = findBinaryStorageDao(em, key);
            if (dao != null) {
                final EntityTransaction transaction = em.getTransaction();
                try {
                    transaction.begin();
                    em.remove(dao);
                    transaction.commit();
                } catch (final Exception e) {
                    if (transaction.isActive()) {
                        transaction.rollback();
                    }
                    throw new BinaryStorageException(e, "error removing record id: " + key);
                }
            } else {
                if (_log.isDebugEnabled()) {
                    _log.debug("could not remove id: " + key + ". no binary object with this id exists.");
                }
            }
        } finally {
            closeEntityManager(em);
        }
    } finally {
        _lock.readLock().unlock();
    }
}

From source file:org.apache.juddi.subscription.SubscriptionNotifier.java

/**
 * Obtains all subscriptions in the system.
 * @return Collection of All Subscriptions in the system.
 *///from  w w w  .  j av a 2 s.  c om
@SuppressWarnings("unchecked")
protected Collection<Subscription> getAllAsyncSubscriptions() {
    Collection<Subscription> subscriptions = null;
    EntityManager em = PersistenceManager.getEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {
        tx.begin();
        Query query = em.createQuery("SELECT s FROM Subscription s WHERE s.bindingKey IS NOT NULL");
        subscriptions = (Collection<Subscription>) query.getResultList();
        tx.commit();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        em.close();
    }
    return subscriptions;
}

From source file:org.eclipse.smila.recordstorage.impl.RecordStorageImpl.java

/**
 * {@inheritDoc}/*from w w w.  ja  va  2  s. c  om*/
 */
@Override
public void storeRecord(final Record record) throws RecordStorageException {
    if (record == null) {
        throw new RecordStorageException("parameter record is null");
    }
    _lock.readLock().lock();
    try {
        final EntityManager em = createEntityManager();
        final EntityTransaction transaction = em.getTransaction();
        try {
            final RecordDao dao = new RecordDao(record);
            transaction.begin();
            if (findRecordDao(em, record.getId()) == null) {
                em.persist(dao);
            } else {
                em.merge(dao);
            }
            transaction.commit();
            if (_log.isTraceEnabled()) {
                _log.trace("stored record Id:" + record.getId());
            }
        } catch (final Exception e) {
            if (transaction.isActive()) {
                transaction.rollback();
            }
            throw new RecordStorageException(e, "error storing record id: " + record.getId());
        } finally {
            closeEntityManager(em);
        }
    } finally {
        _lock.readLock().unlock();
    }
}

From source file:org.opencastproject.scheduler.impl.persistence.SchedulerServiceDatabaseImpl.java

@Override
public void deleteEvent(long eventId) throws NotFoundException, SchedulerServiceDatabaseException {
    EntityManager em = null;// w w  w  .j  a va 2 s.c  o m
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        EventEntity entity = em.find(EventEntity.class, eventId);
        if (entity == null) {
            throw new NotFoundException("Event with ID " + eventId + " does not exist");
        }
        em.remove(entity);
        tx.commit();
    } catch (Exception e) {
        if (tx.isActive()) {
            tx.rollback();
        }
        if (e instanceof NotFoundException) {
            throw (NotFoundException) e;
        }
        logger.error("Could not delete series: {}", e.getMessage());
        throw new SchedulerServiceDatabaseException(e);
    } finally {
        if (em != null)
            em.close();
    }
}

From source file:org.opencastproject.series.impl.persistence.SeriesServiceDatabaseImpl.java

@Override
public void deleteSeries(String seriesId) throws SeriesServiceDatabaseException, NotFoundException {
    EntityManager em = emf.createEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {//ww w.ja  v a 2  s  .c o  m
        tx.begin();
        SeriesEntity entity = getSeriesEntity(seriesId, em);
        if (entity == null) {
            throw new NotFoundException("Series with ID " + seriesId + " does not exist");
        }
        // Ensure this user is allowed to delete this series
        String accessControlXml = entity.getAccessControl();
        if (accessControlXml != null) {
            AccessControlList acl = AccessControlParser.parseAcl(accessControlXml);
            User currentUser = securityService.getUser();
            Organization currentOrg = securityService.getOrganization();
            if (!AccessControlUtil.isAuthorized(acl, currentUser, currentOrg, EDIT_SERIES_PERMISSION)) {
                throw new UnauthorizedException(
                        currentUser + " is not authorized to update series " + seriesId);
            }
        }
        em.remove(entity);
        tx.commit();
    } catch (NotFoundException e) {
        throw e;
    } catch (Exception e) {
        logger.error("Could not delete series: {}", e.getMessage());
        if (tx.isActive()) {
            tx.rollback();
        }
        throw new SeriesServiceDatabaseException(e);
    } finally {
        em.close();
    }
}

From source file:org.opencastproject.userdirectory.jpa.JpaUserAndRoleProvider.java

/**
 * A utility class to load the user directory.
 * //ww  w.j  av a 2  s  . c o m
 * @param user
 *          the user object
 */
public void addUser(JpaUser user) {

    // Create a JPA user with an encoded password.
    String encodedPassword = PasswordEncoder.encode(user.getPassword(), user.getUsername());
    user = new JpaUser(user.getUsername(), encodedPassword, user.getOrganization(), user.getRoles());

    // Then save the user
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        em.persist(user);
        tx.commit();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        if (em != null)
            em.close();
    }
}

From source file:org.opencastproject.series.impl.persistence.SeriesServiceDatabaseImpl.java

/**
 * {@inheritDoc}//from  www  . j a v  a 2 s.  c  o  m
 * 
 * @see org.opencastproject.series.impl.SeriesServiceDatabase#getSeries(java.lang.String)
 */
@Override
public DublinCoreCatalog getSeries(String seriesId) throws NotFoundException, SeriesServiceDatabaseException {
    EntityManager em = emf.createEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {
        tx.begin();
        SeriesEntity entity = getSeriesEntity(seriesId, em);
        if (entity == null) {
            throw new NotFoundException("No series with id=" + seriesId + " exists");
        }
        // Ensure this user is allowed to read this series
        String accessControlXml = entity.getAccessControl();
        if (accessControlXml != null) {
            AccessControlList acl = AccessControlParser.parseAcl(accessControlXml);
            User currentUser = securityService.getUser();
            Organization currentOrg = securityService.getOrganization();
            // There are several reasons a user may need to load a series: to read content, to edit it, or add content
            if (!AccessControlUtil.isAuthorized(acl, currentUser, currentOrg, READ_CONTENT_PERMISSION)
                    && !AccessControlUtil.isAuthorized(acl, currentUser, currentOrg,
                            CONTRIBUTE_CONTENT_PERMISSION)
                    && !AccessControlUtil.isAuthorized(acl, currentUser, currentOrg, EDIT_SERIES_PERMISSION)) {
                throw new UnauthorizedException(currentUser + " is not authorized to see series " + seriesId);
            }
        }
        return dcService.load(IOUtils.toInputStream(entity.getDublinCoreXML(), "UTF-8"));
    } catch (NotFoundException e) {
        throw e;
    } catch (Exception e) {
        logger.error("Could not update series: {}", e.getMessage());
        if (tx.isActive()) {
            tx.rollback();
        }
        throw new SeriesServiceDatabaseException(e);
    } finally {
        em.close();
    }
}

From source file:org.opencastproject.scheduler.impl.persistence.SchedulerServiceDatabaseImpl.java

@Override
public void storeEvents(DublinCoreCatalog... events) throws SchedulerServiceDatabaseException {
    EntityManager em = null;/* ww w  .  jav a  2  s  .  co  m*/
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        for (DublinCoreCatalog event : events) {
            Long eventId = Long.parseLong(event.getFirst(DublinCore.PROPERTY_IDENTIFIER));
            String dcXML;
            try {
                dcXML = serializeDublinCore(event);
            } catch (Exception e1) {
                logger.error("Could not serialize Dublin Core: {}", e1);
                throw new SchedulerServiceDatabaseException(e1);
            }
            EventEntity entity = new EventEntity();
            entity.setEventId(eventId);
            entity.setEventDublinCore(dcXML);
            em.persist(entity);
        }
        tx.commit();
    } catch (SchedulerServiceDatabaseException e) {
        throw e;
    } catch (Exception e) {
        if (tx.isActive()) {
            tx.rollback();
        }
        logger.error("Could not store events: {}", e);
        throw new SchedulerServiceDatabaseException(e);
    } finally {
        if (em != null)
            em.close();
    }
}

From source file:org.opencastproject.scheduler.impl.persistence.SchedulerServiceDatabaseImpl.java

@Override
public void updateEvent(DublinCoreCatalog event) throws NotFoundException, SchedulerServiceDatabaseException {
    if (event == null) {
        throw new SchedulerServiceDatabaseException("Cannot update <null> event");
    }//from  w w  w. j a v a  2  s  . c  o  m
    Long eventId = Long.parseLong(event.getFirst(DublinCore.PROPERTY_IDENTIFIER));
    String dcXML;
    try {
        dcXML = serializeDublinCore(event);
    } catch (Exception e1) {
        logger.error("Could not serialize Dublin Core: {}", e1);
        throw new SchedulerServiceDatabaseException(e1);
    }
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        EventEntity entity = em.find(EventEntity.class, eventId);
        if (entity == null) {
            throw new NotFoundException("Event with ID " + eventId + " does not exist.");
        }
        entity.setEventDublinCore(dcXML);
        em.merge(entity);
        tx.commit();
    } catch (NotFoundException e) {
        throw e;
    } catch (Exception e) {
        if (tx.isActive()) {
            tx.rollback();
        }
        logger.error("Could not store event: {}", e.getMessage());
        throw new SchedulerServiceDatabaseException(e);
    } finally {
        if (em != null)
            em.close();
    }

}