Example usage for javax.persistence EntityTransaction begin

List of usage examples for javax.persistence EntityTransaction begin

  1. HOME
  2. Java
  3. javax
  4. javax.persistence.*
  5. EntityTransaction
  6. begin

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:de.zib.gndms.GORFX.context.service.globus.resource.TaskResource.java

@Override
public void remove() {

    if (taskAction != null) {
        Log log = taskAction.getLog();/*from www  . j  av a  2  s. c  o  m*/
        log.debug("Removing task resource: " + getID());
        AbstractTask tsk = taskAction.getModel();
        boolean cleanUp = false;
        if (tsk != null) {
            if (!tsk.isDone()) {
                // task is still running cancel it and cleanup entity manager
                taskAction.setCancelled(true);
                log.debug("cancel task " + tsk.getWid());
                cleanUp = true;
                if (future != null) {
                    future.cancel(true);
                    try {
                        // give cancel some time
                        Thread.sleep(2000L);
                    } catch (InterruptedException e) {
                        logger.debug(e);
                    }
                }

                try {
                    EntityManager em = taskAction.getEntityManager();
                    if (em != null && em.isOpen()) {
                        try {
                            EntityTransaction tx = em.getTransaction();
                            if (tx.isActive())
                                tx.rollback();
                        } finally {
                            em.close();
                        }
                    }
                } catch (Exception e) {
                    // don't bother with exceptions
                    log.debug("Exception on task future cancel: " + e.toString(), e);
                }
            }

            EntityManager em = home.getEntityManagerFactory().createEntityManager();
            TxFrame tx = new TxFrame(em);
            // cleanup if necessary
            try {
                try {
                    Task t = em.find(Task.class, tsk.getId());
                    t.setPostMortem(true);
                    tx.commit();

                    if (cleanUp) {
                        log.debug("Triggering task cleanup");
                        try {
                            taskAction.setOwnEntityManager(em);
                            taskAction.cleanUpOnFail(t);
                        } catch (Exception e) {
                            log.debug("Exception on cleanup: " + e.toString());
                        }
                    }

                    // remove task from db
                    log.debug("Removing task: " + t.getId());
                    tx.begin();
                    em.remove(t);
                    tx.commit();
                } finally {
                    tx.finish();
                    if (em.isOpen())
                        em.close();
                }
            } catch (Exception e) {
                log.debug("Exception on task resource removal: " + e.toString());
                e.printStackTrace();
            }
        }
    }
}

From source file:org.apache.juddi.validation.ValidatePublish.java

/**
 * throws if it doesn't exist, returns it if it does
 *
 * @param tmodelKey/*from   w w  w  .  jav  a 2s  . c  o  m*/
 * @return null, or a TModel object
 * @throws ValueNotAllowedException
 * @since 3.3
 */
private TModel verifyTModelKeyExists(String tmodelKey)
        throws ValueNotAllowedException, DispositionReportFaultMessage {
    TModel api = null;
    EntityManager em = PersistenceManager.getEntityManager();
    boolean found = false;
    if (em == null) {
        log.warn(new ErrorMessage("errors.tmodel.ReferentialIntegrityNullEM"));
    } else {
        Tmodel modelTModel = null;
        {
            EntityTransaction tx = em.getTransaction();
            try {

                tx.begin();
                modelTModel = em.find(org.apache.juddi.model.Tmodel.class, tmodelKey);

                if (modelTModel != null) {
                    found = true;
                    api = new TModel();
                    MappingModelToApi.mapTModel(modelTModel, api);
                }
                tx.commit();

            } finally {
                if (tx.isActive()) {
                    tx.rollback();
                }
                em.close();
            }

        }
    }
    if (!found) {
        throw new ValueNotAllowedException(
                new ErrorMessage("errors.tmodel.ReferencedKeyDoesNotExist", tmodelKey));
    }
    return api;
}

From source file:org.apache.juddi.validation.ValidatePublish.java

/**
 * Validates that a tmodel key is registered Alex O'Ree
 *
 * @param tmodelKey//from   www  .j  av  a2  s.c  om
 * @param em
 * @throws ValueNotAllowedException
 * @see org.apache.juddi.config.Install
 * @since 3.1.5
 */
private boolean verifyTModelKeyExistsAndChecked(String tmodelKey, Configuration config)
        throws ValueNotAllowedException {
    boolean checked = true;
    if (tmodelKey == null || tmodelKey.length() == 0) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:categorization:types")) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:categorization:nodes")) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:v3_inquiry")) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:v3_publication")) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:v3_security")) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:v3_ownership_transfer")) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:v3_subscription")) {
        return false;
    }
    if (tmodelKey.equalsIgnoreCase("uddi:uddi.org:v3_subscriptionlistener")) {
        return false;
    }

    if (config == null) {
        log.warn(new ErrorMessage("errors.tmodel.ReferentialIntegrityNullConfig"));
        return false;
    }
    boolean checkRef = false;
    try {
        checkRef = config.getBoolean(Property.JUDDI_ENFORCE_REFERENTIAL_INTEGRITY, false);
    } catch (Exception ex) {
        log.warn("Error caught reading " + Property.JUDDI_ENFORCE_REFERENTIAL_INTEGRITY + " from config file",
                ex);
    }
    if (checkRef) {
        if (log.isDebugEnabled()) {
            log.debug("verifyTModelKeyExists " + tmodelKey);
        }
        EntityManager em = PersistenceManager.getEntityManager();

        if (em == null) {
            //this is normally the Install class firing up
            log.warn(new ErrorMessage("errors.tmodel.ReferentialIntegrityNullEM"));
        } else {
            //Collections.sort(buildInTmodels);
            //if ((buildInTmodels, tmodelKey) == -1)
            Tmodel modelTModel = null;
            {
                EntityTransaction tx = em.getTransaction();
                try {

                    tx.begin();
                    modelTModel = em.find(org.apache.juddi.model.Tmodel.class, tmodelKey);

                    if (modelTModel == null) {
                        checked = false;
                    } else {
                        for (org.apache.juddi.model.KeyedReference ref : modelTModel.getCategoryBag()
                                .getKeyedReferences()) {
                            if ("uddi-org:types:unchecked".equalsIgnoreCase(ref.getKeyName())) {
                                checked = false;
                                break;
                            }
                        }
                    }

                    tx.commit();

                } finally {
                    if (tx.isActive()) {
                        tx.rollback();
                    }
                    em.close();
                }
                if (modelTModel == null) {
                    throw new ValueNotAllowedException(
                            new ErrorMessage("errors.tmodel.ReferencedKeyDoesNotExist", tmodelKey));
                }
            }
        }
    }
    return checked;
}

From source file:org.opencastproject.serviceregistry.impl.ServiceRegistryJpaImpl.java

/**
 * Internal method to update a job, throwing unwrapped JPA exceptions.
 * /*from w  w  w.  j  ava  2  s  . c o m*/
 * @param em
 *          the current entity manager
 * @param job
 *          the job to update
 * @return the updated job
 * @throws PersistenceException
 *           if there is an exception thrown while persisting the job via JPA
 * @throws IllegalArgumentException
 */
protected Job updateInternal(EntityManager em, Job job) throws PersistenceException {
    EntityTransaction tx = em.getTransaction();
    try {
        tx.begin();
        JobJpaImpl fromDb;
        fromDb = em.find(JobJpaImpl.class, job.getId());
        if (fromDb == null) {
            throw new NoResultException();
        }
        update(fromDb, (JaxbJob) job);

        em.merge(fromDb);
        tx.commit();
        ((JaxbJob) job).setVersion(fromDb.getVersion());
        setJobUri(job);
        return job;
    } catch (PersistenceException e) {
        if (tx.isActive()) {
            tx.rollback();
        }
        throw e;
    }
}

From source file:org.opencastproject.serviceregistry.impl.ServiceRegistryJpaImpl.java

/**
 * Internal method to update the service registration state, throwing unwrapped JPA exceptions.
 * //from  w w w.  j av a  2 s.  c  om
 * @param em
 *          the current entity manager
 * @param registration
 *          the service registration to update
 * @return the updated service registration
 * @throws PersistenceException
 *           if there is an exception thrown while persisting the job via JPA
 * @throws IllegalArgumentException
 */
private ServiceRegistration updateServiceState(EntityManager em, ServiceRegistrationJpaImpl registration)
        throws PersistenceException {
    EntityTransaction tx = em.getTransaction();
    try {
        tx.begin();
        ServiceRegistrationJpaImpl fromDb;
        fromDb = em.find(ServiceRegistrationJpaImpl.class, registration.getId());
        if (fromDb == null) {
            throw new NoResultException();
        }
        fromDb.setServiceState(registration.getServiceState());
        fromDb.setStateChanged(registration.getStateChanged());
        fromDb.setWarningStateTrigger(registration.getWarningStateTrigger());
        fromDb.setErrorStateTrigger(registration.getErrorStateTrigger());
        tx.commit();
        servicesStatistics.updateService(registration);
        return registration;
    } catch (PersistenceException e) {
        if (tx.isActive()) {
            tx.rollback();
        }
        throw e;
    }
}

From source file:org.opencastproject.serviceregistry.impl.ServiceRegistryJpaImpl.java

/**
 * {@inheritDoc}//from w w  w.  ja v a2  s .  com
 * 
 * @see org.opencastproject.serviceregistry.api.ServiceRegistry#setMaintenanceStatus(java.lang.String, boolean)
 */
@Override
public void setMaintenanceStatus(String baseUrl, boolean maintenance) throws NotFoundException {
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        HostRegistrationJpaImpl reg = fetchHostRegistration(em, baseUrl);
        if (reg == null) {
            throw new NotFoundException("Can not set maintenance mode on a host that has not been registered");
        }
        reg.setMaintenanceMode(maintenance);
        em.merge(reg);
        tx.commit();
        hostsStatistics.updateHost(reg);
    } catch (RollbackException e) {
        if (tx != null && tx.isActive()) {
            tx.rollback();
        }
        throw e;
    } finally {
        if (em != null)
            em.close();
    }
}

From source file:org.opencastproject.serviceregistry.impl.ServiceRegistryJpaImpl.java

/**
 * Find all undispatchable jobs and set them to CANCELED.
 *///from  w ww .  jav a  2  s  .co m
private void cleanUndispatchableJobs() {
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        Query query = em.createNamedQuery("Job.undispatchable.status");
        List<Status> statuses = new ArrayList<Job.Status>();
        statuses.add(Status.INSTANTIATED);
        statuses.add(Status.RUNNING);
        query.setParameter("statuses", statuses);
        @SuppressWarnings("unchecked")
        List<JobJpaImpl> undispatchableJobs = query.getResultList();
        for (JobJpaImpl job : undispatchableJobs) {
            logger.info("Marking undispatchable job {} as canceled", job);
            job.setStatus(Status.CANCELED);
            em.merge(job);
        }
        tx.commit();
    } catch (Exception e) {
        logger.error("Unable to clean undispatchable jobs! {}", e.getMessage());
        if (tx != null && tx.isActive()) {
            tx.rollback();
        }
    } finally {
        if (em != null)
            em.close();
    }
}

From source file:org.opencastproject.serviceregistry.impl.ServiceRegistryJpaImpl.java

/**
 * {@inheritDoc}//from  www  .  j  a  v  a2 s  . c  o m
 * 
 * @see org.opencastproject.serviceregistry.api.ServiceRegistry#registerHost(java.lang.String, int)
 */
@Override
public void registerHost(String host, int maxJobs) throws ServiceRegistryException {
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        // Find the existing registrations for this host and if it exists, update it
        HostRegistrationJpaImpl hostRegistration = fetchHostRegistration(em, host);
        if (hostRegistration == null) {
            hostRegistration = new HostRegistrationJpaImpl(host, maxJobs, true, false);
            em.persist(hostRegistration);
        } else {
            hostRegistration.setMaxJobs(maxJobs);
            hostRegistration.setOnline(true);
            em.merge(hostRegistration);
        }
        logger.info("Registering {} with a maximum load of {}", host, maxJobs);
        tx.commit();
        hostsStatistics.updateHost(hostRegistration);
    } catch (Exception e) {
        if (tx != null && tx.isActive()) {
            tx.rollback();
        }
        throw new ServiceRegistryException(e);
    } finally {
        if (em != null)
            em.close();
    }
}

From source file:org.opencastproject.serviceregistry.impl.ServiceRegistryJpaImpl.java

/**
 * {@inheritDoc}//  w  w  w .  ja v  a  2s  .com
 * 
 * @see org.opencastproject.serviceregistry.api.ServiceRegistry#unregisterHost(java.lang.String)
 */
@Override
public void unregisterHost(String host) throws ServiceRegistryException {
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        HostRegistrationJpaImpl existingHostRegistration = fetchHostRegistration(em, host);
        if (existingHostRegistration == null) {
            throw new ServiceRegistryException(
                    "Host '" + host + "' is not currently registered, so it can not be unregistered");
        } else {
            existingHostRegistration.setOnline(false);
            for (ServiceRegistration serviceRegistration : getServiceRegistrationsByHost(host)) {
                unRegisterService(serviceRegistration.getServiceType(), serviceRegistration.getHost());
            }
            em.merge(existingHostRegistration);
        }
        logger.info("Unregistering {}", host, maxJobs);
        tx.commit();
        hostsStatistics.updateHost(existingHostRegistration);
    } catch (Exception e) {
        if (tx != null && tx.isActive()) {
            tx.rollback();
        }
        throw new ServiceRegistryException(e);
    } finally {
        if (em != null)
            em.close();
    }
}

From source file:org.opencastproject.serviceregistry.impl.ServiceRegistryJpaImpl.java

/**
 * {@inheritDoc}// w  w w .ja va 2  s  .co  m
 * 
 * @see org.opencastproject.serviceregistry.api.ServiceRegistry#disableHost(String)
 */
@Override
public void disableHost(String host) throws ServiceRegistryException, NotFoundException {
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        HostRegistrationJpaImpl hostRegistration = fetchHostRegistration(em, host);
        if (hostRegistration == null) {
            throw new NotFoundException(
                    "Host '" + host + "' is not currently registered, so it can not be disabled");
        } else {
            hostRegistration.setActive(false);
            for (ServiceRegistration serviceRegistration : getServiceRegistrationsByHost(host)) {
                ServiceRegistrationJpaImpl registration = (ServiceRegistrationJpaImpl) serviceRegistration;
                registration.setActive(false);
                em.merge(registration);
                servicesStatistics.updateService(registration);
            }
            em.merge(hostRegistration);
        }
        logger.info("Disabling {}", host);
        tx.commit();
        hostsStatistics.updateHost(hostRegistration);
    } catch (NotFoundException e) {
        throw e;
    } catch (Exception e) {
        if (tx != null && tx.isActive()) {
            tx.rollback();
        }
        throw new ServiceRegistryException(e);
    } finally {
        if (em != null)
            em.close();
    }
}