Example usage for javax.persistence EntityManager isOpen

Introduction

In this page you can find the example usage for javax.persistence EntityManager isOpen.

Prototype

public boolean isOpen();

Source Link

Document

Determine whether the entity manager is open.

Usage

From source file:org.opencastproject.usertracking.impl.UserTrackingServiceImpl.java

public Report getReport(String from, String to, int offset, int limit) throws ParseException {
    Report report = new ReportImpl();
    report.setLimit(limit);//from w w w  . j  av a2  s  .  co  m
    report.setOffset(offset);

    Calendar calBegin = new GregorianCalendar();
    Calendar calEnd = new GregorianCalendar();
    SimpleDateFormat complex = new SimpleDateFormat("yyyyMMddhhmm");
    SimpleDateFormat simple = new SimpleDateFormat("yyyyMMdd");

    //Try to parse the from calendar
    try {
        calBegin.setTime(complex.parse(from));
    } catch (ParseException e) {
        calBegin.setTime(simple.parse(from));
    }

    //Try to parse the to calendar
    try {
        calEnd.setTime(complex.parse(to));
    } catch (ParseException e) {
        calEnd.setTime(simple.parse(to));
    }

    EntityManager em = null;
    try {
        em = emf.createEntityManager();
        Query q = em.createNamedQuery("countSessionsGroupByMediapackageByIntervall");
        q.setFirstResult(offset);
        q.setMaxResults(limit);
        q.setParameter("begin", calBegin, TemporalType.TIMESTAMP);
        q.setParameter("end", calEnd, TemporalType.TIMESTAMP);

        @SuppressWarnings("unchecked")
        List<Object[]> result = q.getResultList();
        ReportItem item;

        for (Object[] a : result) {
            item = new ReportItemImpl();
            item.setEpisodeId((String) a[0]);
            item.setViews((Long) a[1]);
            item.setPlayed((Long) a[2]);
            report.add(item);
        }
        return report;
    } finally {
        if (em != null && em.isOpen()) {
            em.close();
        }
    }
}

From source file:org.opencastproject.usertracking.impl.UserTrackingServiceImpl.java

public FootprintList getFootprints(String mediapackageId, String userId) {
    EntityManager em = null;
    try {/*  www  .  j a  va 2  s . co m*/
        em = emf.createEntityManager();
        Query q = null;
        if (StringUtils.trimToNull(userId) == null) {
            q = em.createNamedQuery("findUserActionsByTypeAndMediapackageIdOrderByOutpointDESC");
        } else {
            q = em.createNamedQuery("findUserActionsByTypeAndMediapackageIdByUserOrderByOutpointDESC");
            q.setParameter("userid", userId);
        }
        q.setParameter("type", FOOTPRINT_KEY);
        q.setParameter("mediapackageId", mediapackageId);
        @SuppressWarnings("unchecked")
        Collection<UserAction> userActions = q.getResultList();

        int[] resultArray = new int[1];
        boolean first = true;

        for (UserAction a : userActions) {
            if (first) {
                // Get one more item than the known outpoint to append a footprint of 0 views at the end of the result set
                resultArray = new int[a.getOutpoint() + 1];
                first = false;
            }
            for (int i = a.getInpoint(); i < a.getOutpoint(); i++) {
                resultArray[i]++;
            }
        }
        FootprintList list = new FootprintsListImpl();
        int current = -1;
        int last = -1;
        for (int i = 0; i < resultArray.length; i++) {
            current = resultArray[i];
            if (last != current) {
                Footprint footprint = new FootprintImpl();
                footprint.setPosition(i);
                footprint.setViews(current);
                list.add(footprint);
            }
            last = current;
        }
        return list;
    } finally {
        if (em != null && em.isOpen()) {
            em.close();
        }
    }
}

From source file:org.opencastproject.usertracking.impl.UserTrackingServiceImpl.java

/**
 * {@inheritDoc}/*from   w w w  .j  a  va 2s  .  c  o m*/
 * 
 * @see org.opencastproject.usertracking.api.UserTrackingService#getUserAction(java.lang.Long)
 */
@Override
public UserAction getUserAction(Long id) throws UserTrackingException, NotFoundException {
    EntityManager em = null;
    UserActionImpl result = null;
    try {
        em = emf.createEntityManager();
        result = em.find(UserActionImpl.class, id);
    } catch (Exception e) {
        throw new UserTrackingException(e);
    } finally {
        if (em != null && em.isOpen()) {
            em.close();
        }
    }
    if (result == null) {
        throw new NotFoundException("No UserAction found with id='" + id + "'");
    } else {
        return result;
    }
}

From source file:org.opentides.persistence.interceptor.SynchronizableInterceptor.java

/**
 * Saves the change log into the database.
 * @param shortMessage/*from   w ww .  j a  v  a 2  s .c  o m*/
 * @param message
 * @param entity
 */
public static void saveLog(BaseEntity entity, int action, String updateFields, String sqlCommand) {
    EntityManager em = DatabaseUtil.getEntityManager();
    try {
        em.getTransaction().begin();
        ChangeLog cl = new ChangeLog(entity.getId(), entity.getClass(), action, updateFields, sqlCommand);
        em.persist(cl);
        em.flush();
        em.getTransaction().commit();
    } catch (Exception ex) {
        _log.error("Failed to save change log on [" + entity.getClass().getSimpleName() + "]", ex);
    } finally {
        if (em != null && em.isOpen()) {
            em.close();
        }
    }
}

From source file:org.springframework.orm.jpa.EntityManagerFactoryUtils.java

/**
 * Close the given JPA EntityManager,//from  w w w. ja va2s  .  c o m
 * catching and logging any cleanup exceptions thrown.
 * @param em the JPA EntityManager to close (may be {@code null})
 * @see javax.persistence.EntityManager#close()
 */
public static void closeEntityManager(@Nullable EntityManager em) {
    if (em != null) {
        logger.debug("Closing JPA EntityManager");
        try {
            if (em.isOpen()) {
                em.close();
            }
        } catch (PersistenceException ex) {
            logger.debug("Could not close JPA EntityManager", ex);
        } catch (Throwable ex) {
            logger.debug("Unexpected exception on closing JPA EntityManager", ex);
        }
    }
}

From source file:utilities.PopulateDatabase.java

public static void main(String[] args) throws Throwable {
    ApplicationContext applicationContext;
    EntityManagerFactory entityManagerFactory;
    EntityManager entityManager;
    EntityTransaction entityTransaction;

    applicationContext = new ClassPathXmlApplicationContext("classpath:PopulateDatabase.xml");

    entityManagerFactory = Persistence.createEntityManagerFactory(PersistenceUnit);
    entityManager = entityManagerFactory.createEntityManager();
    entityTransaction = entityManager.getTransaction();

    initialise(entityManagerFactory, entityManager);

    entityTransaction.begin();//from   w  w  w  .j av a 2s. co m
    try {
        for (Entry<String, Object> entry : applicationContext.getBeansWithAnnotation(Entity.class).entrySet()) {
            String beanName;
            DomainEntity entity;

            beanName = entry.getKey();
            entity = (DomainEntity) entry.getValue();
            entityManager.persist(entity);
            System.out.println(String.format("Persisting (%s, %s, %d)", beanName, entity.getClass().getName(),
                    entity.getId()));
        }
        entityTransaction.commit();
    } catch (Exception oops) {
        oops.printStackTrace();
        entityTransaction.rollback();
    } finally {
        if (entityManager.isOpen())
            entityManager.close();
        if (entityManagerFactory.isOpen())
            entityManagerFactory.close();
    }
}