Example usage for javax.persistence EntityTransaction 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:org.easy.criteria.BaseDAO.java

/**
 * {@link javax.persistence.EntityManager#getTransaction()#begin())}
 *//*from   ww w  . ja  v  a2  s  . c o m*/
public EntityTransaction beginTransaction() {
    EntityTransaction transaction = _entityManager.getTransaction();
    transaction.begin();
    return transaction;
}

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From source file:org.opencastproject.kernel.security.persistence.OrganizationDatabaseImpl.java

/**
 * @see org.opencastproject.kernel.security.persistence.OrganizationDatabase#deleteOrganization(java.lang.String)
 *///from  w w w.j  a v  a2  s .c  o  m
@Override
public void deleteOrganization(String orgId) throws OrganizationDatabaseException, NotFoundException {
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        JpaOrganization organization = getOrganizationEntity(orgId);
        if (organization == null)
            throw new NotFoundException("Organization " + orgId + " does not exist");

        em.remove(organization);
        tx.commit();
    } catch (NotFoundException e) {
        throw e;
    } catch (Exception e) {
        logger.error("Could not delete organization: {}", e.getMessage());
        if (tx.isActive()) {
            tx.rollback();
        }
        throw new OrganizationDatabaseException(e);
    } finally {
        if (em != null)
            em.close();
    }
}

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From source file:org.opencastproject.kernel.security.persistence.OrganizationDatabaseImpl.java

/**
 * @see org.opencastproject.kernel.security.persistence.OrganizationDatabase#storeOrganization(org.opencastproject.security.api.Organization)
 */// w  w  w. ja va 2s.c  om
@Override
public void storeOrganization(Organization org) throws OrganizationDatabaseException {
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();
        JpaOrganization organizationEntity = getOrganizationEntity(org.getId());
        if (organizationEntity == null) {
            JpaOrganization organization = new JpaOrganization(org.getId(), org.getName(), org.getServers(),
                    org.getAdminRole(), org.getAnonymousRole(), org.getProperties());
            em.persist(organization);
        } else {
            organizationEntity.setName(org.getName());
            organizationEntity.setAdminRole(org.getAdminRole());
            organizationEntity.setAnonymousRole(org.getAnonymousRole());
            organizationEntity.setServers(org.getServers());
            organizationEntity.setProperties(org.getProperties());
            em.merge(organizationEntity);
        }
        tx.commit();
    } catch (Exception e) {
        logger.error("Could not update organization: {}", e.getMessage());
        if (tx.isActive()) {
            tx.rollback();
        }
        throw new OrganizationDatabaseException(e);
    } finally {
        if (em != null)
            em.close();
    }
}

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From source file:nl.b3p.kaartenbalie.service.SecurityRealm.java

/** Checks wether an user, given his username and password, is allowed to use the system.
 *
 * @param username String representing the username.
 * @param password String representing the password.
 *
 * @return a principal object containing the user if he has been found as a registered user. Otherwise this object wil be empty (null).
 *///from   ww  w  .j a v  a2s .c  om
@Override
public Principal authenticate(String username, String password) {

    String encpw = null;
    try {
        encpw = KBCrypter.encryptText(password);
    } catch (Exception ex) {
        log.error("error encrypting password: ", ex);
    }
    Object identity = null;
    EntityTransaction tx = null;
    try {
        identity = MyEMFDatabase.createEntityManager(MyEMFDatabase.REALM_EM);
        EntityManager em = MyEMFDatabase.getEntityManager(MyEMFDatabase.REALM_EM);
        tx = em.getTransaction();
        tx.begin();
        try {
            User user = (User) em
                    .createQuery("from User u where " + "u.timeout > :nu "
                            + "and lower(u.username) = lower(:username) " + "and u.password = :password")
                    .setParameter("nu", new Date()).setParameter("username", username)
                    .setParameter("password", encpw).getSingleResult();
            // if we get a result, this means successful login
            // set lastloginstatus to null to indicate success
            user.setLastLoginStatus(null);

            return user;
        } catch (NoResultException nre) {
            log.debug("No results using encrypted password");
        }
        // if login not succesful, set userstate to LOGIN_STATE_WRONG_PASSW
        User wrong_password_user = (User) em
                .createQuery(
                        "from User u where " + "u.timeout > :nu " + "and lower(u.username) = lower(:username) ")
                .setParameter("nu", new Date()).setParameter("username", username).getSingleResult();
        wrong_password_user.setLastLoginStatus(User.LOGIN_STATE_WRONG_PASSW_OR_ACCOUNT_EXPIRED);
        em.flush();
        log.warn("Login failure for username " + username);
    } catch (Exception e) {
        log.error("Exception checking user credentails", e);
        if (tx != null && tx.isActive()) {
            tx.rollback();
        }
    } finally {
        if (tx != null && tx.isActive() && !tx.getRollbackOnly()) {
            tx.commit();
        }
        MyEMFDatabase.closeEntityManager(identity, MyEMFDatabase.REALM_EM);
    }

    return null;
}

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From source file:org.apache.james.user.jpa.JPAUsersRepository.java

/**
 * Update the repository with the specified user object. A user object with
 * this username must already exist.//from  w ww.  j av a  2  s  . c o m
 * 
 * @throws UsersRepositoryException
 */
public void updateUser(User user) throws UsersRepositoryException {
    EntityManager entityManager = entityManagerFactory.createEntityManager();

    final EntityTransaction transaction = entityManager.getTransaction();
    try {
        if (contains(user.getUserName())) {
            transaction.begin();
            entityManager.merge(user);
            transaction.commit();
        } else {
            getLogger().debug("User not found");
            throw new UsersRepositoryException("User " + user.getUserName() + " not found");
        }
    } catch (PersistenceException e) {
        getLogger().debug("Failed to update user", e);
        if (transaction.isActive()) {
            transaction.rollback();
        }
        throw new UsersRepositoryException("Failed to update user " + user.getUserName(), e);
    } finally {
        entityManager.close();
    }
}

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From source file:com.busimu.core.dao.impl.UserMngDaoPolicyJpaImpl.java

/**
 * {@inheritDoc}/*  w  w  w.  j a v a 2 s .  c om*/
 */
@Override
public User activateUser(User user, String licenseCode) {
    EntityManager em = ((EntityManagerHolder) TransactionSynchronizationManager.getResource(emf))
            .getEntityManager();
    EntityTransaction tx = em.getTransaction();
    License l = getLicenseByCode(em, licenseCode);
    if (l != null) {
        if (!tx.isActive()) {
            tx.begin();
        }
        user.setType(User.Type.valueOf(l.getType().name()));
        user.setStatus(User.Status.ACTIVE);
        user = em.merge(user);
        em.remove(l);
        tx.commit();
    }
    return user;
}

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From source file:org.debux.webmotion.jpa.Transactional.java

/**
 * Create the transaction and the GenericDAO if the entity name is not 
 * empty or null.//from   w  w  w .jav a  2  s . co m
 * 
 * @param request set EntityManager, EntityTransaction and GenericDAO into the request
 * @param persistenceUnitName precise the persistence unit
 * @param packageEntityName precise the package of entity
 * @param entityName precise the class name of the entity
 * 
 * @throws Exception catch execption to rollback the transaction
 */
public void tx(HttpServletRequest request, String persistenceUnitName, Properties properties,
        String packageEntityName, String entityName) throws Exception {

    // Create factory
    if (persistenceUnitName == null || persistenceUnitName.isEmpty()) {
        persistenceUnitName = DEFAULT_PERSISTENCE_UNIT_NAME;
    }
    EntityManagerFactory factory = factories.get(persistenceUnitName);
    if (factory == null) {
        Configuration subset = properties.subset(persistenceUnitName);
        java.util.Properties additionalProperties = ConfigurationConverter.getProperties(subset);

        factory = Persistence.createEntityManagerFactory(persistenceUnitName, additionalProperties);
        factories.put(persistenceUnitName, factory);
    }

    // Create manager
    EntityManager manager = (EntityManager) request.getAttribute(CURRENT_ENTITY_MANAGER);
    if (manager == null) {
        manager = factory.createEntityManager();
        request.setAttribute(CURRENT_ENTITY_MANAGER, manager);
    }

    // Create generic DAO each time if callback an action on an other entity
    if (entityName != null) {
        String fullEntityName = null;
        if (packageEntityName != null && !packageEntityName.isEmpty()) {
            fullEntityName = packageEntityName + "." + entityName;
        } else {
            fullEntityName = entityName;
        }

        GenericDAO genericDAO = new GenericDAO(manager, fullEntityName);
        request.setAttribute(CURRENT_GENERIC_DAO, genericDAO);

    } else {
        request.setAttribute(CURRENT_GENERIC_DAO, null);
    }

    // Create transaction
    EntityTransaction transaction = (EntityTransaction) request.getAttribute(CURRENT_ENTITY_TRANSACTION);
    if (transaction == null) {
        transaction = manager.getTransaction();
        request.setAttribute(CURRENT_ENTITY_TRANSACTION, transaction);

        transaction.begin();

        try {
            doProcess();
        } catch (Exception e) {
            if (transaction.isActive()) {
                transaction.rollback();
            }
            throw e;
        }

        if (transaction.isActive()) {
            transaction.commit();
        }
        manager.close();

    } else {
        doProcess();
    }
}

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From source file:org.apache.ranger.audit.provider.DbAuditProvider.java

private boolean beginTransaction() {
    EntityTransaction trx = getTransaction();

    if (trx != null && !trx.isActive()) {
        trx.begin();
    }//from   w ww .  j a v a 2  s.co  m

    if (trx == null) {
        LOG.warn("DbAuditProvider.beginTransaction(): trx is null");
    }

    return trx != null;
}

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From source file:org.sigmah.server.dao.hibernate.TransactionalInterceptor.java

@Override
public Object invoke(MethodInvocation methodInvocation) throws Throwable {
    EntityManager em = injector.getInstance(EntityManager.class);
    EntityTransaction tx = em.getTransaction();

    //allow joining of transactions if there is an enclosing @Transactional method
    if (tx.isActive()) {

        if (log.isDebugEnabled()) {
            log.debug("[invoke] Transaction already active, just proceed the method.");
        }//from   w  w  w  .j  a  v a  2 s. co  m

        return methodInvocation.proceed();
    }

    tx.begin();

    if (log.isDebugEnabled()) {
        log.debug("[invoke] Begins an entity transaction.");
    }

    Object result = attemptInvocation(methodInvocation, tx);

    // everything was normal so commit the txn (do not move into try block as it interferes
    // with the advised method's throwing semantics)
    tx.commit();

    if (log.isDebugEnabled()) {
        log.debug("[invoke] Commits the transaction.");
    }

    return result;
}

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From source file:nl.b3p.kaartenbalie.core.server.persistence.MyEMFDatabase.java

@Override
public void init(ServletConfig config) throws ServletException {
    super.init(config);

    DataMonitoring//from   w  w w.ja  va 2s. co  m
            .setEnableMonitoring(getConfigValue(config, "reporting", "disabled").equalsIgnoreCase("enabled"));
    AccountManager
            .setEnableAccounting(getConfigValue(config, "accounting", "disabled").equalsIgnoreCase("enabled"));

    Object identity = null;
    try {
        openEntityManagerFactory(defaultKaartenbaliePU);
        identity = createEntityManager(MyEMFDatabase.INIT_EM);
        log.debug("Getting entity manager ......");
        EntityManager em = getEntityManager(MyEMFDatabase.INIT_EM);
        EntityTransaction tx = em.getTransaction();
        tx.begin();
        //            ReportGenerator.startupClear(em);
        tx.commit();
    } catch (Throwable e) {
        log.warn("Error creating EntityManager: ", e);
        throw new ServletException(e);
    } finally {
        log.debug("Closing entity manager .....");
        closeEntityManager(identity, MyEMFDatabase.INIT_EM);
    }

    cachePath = getConfigValue(config, "cache", "/");
    if (cachePath != null) {
        cachePath = getServletContext().getRealPath(cachePath);
        log.debug("cache pad: " + cachePath);
    }

    rg = new Random();

    String allowedUpload = config.getInitParameter("allowed_upload_files");
    if (allowedUpload != null && allowedUpload.length() > 0) {
        allowedUploadFiles = allowedUpload.split(",");
    }

    // load global context params
    initGlobalContextParams(config);

    // configure kb via properties
    KBConfiguration.configure();
}

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