Example usage for javax.persistence EntityManager getTransaction

List of usage examples for javax.persistence EntityManager getTransaction

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Introduction

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

Prototype

public EntityTransaction getTransaction();

Source Link

Document

Return the resource-level EntityTransaction object.

Usage

From source file:com.sixsq.slipstream.run.RunNodeResource.java

private Representation addNodeInstancesInTransaction(Representation entity) throws Exception {

    EntityManager em = PersistenceUtil.createEntityManager();
    EntityTransaction transaction = em.getTransaction();
    Run run = Run.loadFromUuid(getUuid(), em);
    List<String> instanceNames = new ArrayList<String>();
    try {/*from  w  ww. j  a  v  a2  s. c om*/
        validateRun(run);

        transaction.begin();

        int noOfInst = getNumberOfInstancesToAdd(entity);

        Node node = getNode(run, nodename);
        for (int i = 0; i < noOfInst; i++) {
            instanceNames.add(createNodeInstanceOnRun(run, node));
        }

        run.postEventScaleUp(nodename, instanceNames, noOfInst);

        incrementNodeMultiplicityOnRun(noOfInst, run);
        StateMachine.createStateMachine(run).tryAdvanceToProvisionning();

        if (Configuration.isQuotaEnabled()) {
            User user = User.loadByName(run.getUser());
            Quota.validate(user, run.getCloudServiceUsage(), Vm.usage(user.getName()));
        }

        transaction.commit();
    } catch (Exception ex) {
        if (transaction.isActive()) {
            transaction.rollback();
        }
        throw ex;
    } finally {
        em.close();
    }

    getResponse().setStatus(Status.SUCCESS_CREATED);
    return new StringRepresentation(StringUtils.join(instanceNames, ","), MediaType.TEXT_PLAIN);
}

From source file:in.bookmylab.jpa.JpaDAO.java

public void saveSpmBooking(SpmLabBooking spm) throws AppException {
    EntityManager em = emf.createEntityManager();
    try {/* w ww .jav  a  2  s  .  c  o  m*/
        em.getTransaction().begin();
        if (spm.spmId == null) {
            em.persist(spm);
            fixAnalysisModesAndResourceType(spm.booking, em, false);
        } else {
            // Validate status change, if any
            Query q = em.createNamedQuery("ResourceBooking.findById");
            ResourceBooking rb = (ResourceBooking) q.setParameter("bookingId", spm.booking.bookingId)
                    .getSingleResult();
            if (!statusChangeValid(rb.status, spm.booking.status)) {
                throw new AppException(String.format("Status cannot be changed from %s to %s.", rb.status,
                        spm.booking.status));
            }

            fixAnalysisModesAndResourceType(spm.booking, em, true);
            em.merge(spm);
        }
        em.getTransaction().commit();
    } finally {
        em.close();
    }
}

From source file:in.bookmylab.jpa.JpaDAO.java

public void saveXrdBooking(XrdLabBooking xrd) throws AppException {
    EntityManager em = emf.createEntityManager();
    try {//from  w w  w.  j a v  a 2  s  .c om
        em.getTransaction().begin();
        if (xrd.xrdId == null) {
            em.persist(xrd);
            fixAnalysisModesAndResourceType(xrd.booking, em, false);
        } else {
            // Validate status change, if any
            Query q = em.createNamedQuery("ResourceBooking.findById");
            ResourceBooking rb = (ResourceBooking) q.setParameter("bookingId", xrd.booking.bookingId)
                    .getSingleResult();
            if (!statusChangeValid(rb.status, xrd.booking.status)) {
                throw new AppException(String.format("Status cannot be changed from %s to %s.", rb.status,
                        xrd.booking.status));
            }

            fixAnalysisModesAndResourceType(xrd.booking, em, true);
            em.merge(xrd);
        }
        em.getTransaction().commit();
    } finally {
        em.close();
    }
}

From source file:cz.fi.muni.pa165.dto.BookDAOTest.java

@Test
public void testInsert() {

    EntityManager em = emf.createEntityManager();
    BookDAOImpl bdao = new BookDAOImpl();
    bdao.setManager(em);//ww  w. j a  v a 2s .  c om

    Book book = new Book();
    book.setAuthors("Author");
    book.setDepartment(Department.Sport);
    book.setDescription("Description");
    book.setISBN("123456456");
    book.setName("Name");

    em.getTransaction().begin();

    bdao.insert(book);
    em.getTransaction().commit();
    List<Book> books = em.createQuery("SELECT b FROM Book b", Book.class).getResultList();
    em.close();
    assertEquals(books.size(), 2);
}

From source file:com.ge.apm.service.data.DataService.java

public Object postDirectData(String tablename, List<Map> list) {
    if (tablename == null)
        return "{\"code\":\"1\",\"msg\":\"please input table_name\"}";
    if (list == null || list.isEmpty())
        return "{\"code\":\"1\",\"msg\":\"no data post\"}";
    String tableName = tablename.toLowerCase();
    String talbeClassName = "com.ge.apm.domain." + tabelNameToClassName(tableName);
    Class<?> table = getDao(talbeClassName);
    Map<String, String> fields = getFields(table);

    EntityManagerFactory emf = WebUtil.getBean(EntityManagerFactory.class);
    EntityManager em = emf.createEntityManager();
    int fortimes = list.size() / 50 + 1;//
    for (int j = 0; j < fortimes; j++) {
        List<Map> subList = list.subList(j * 50, (j + 1) * 50 < list.size() ? (j + 1) * 50 : list.size());

        em.getTransaction().begin();
        Query query = null;// ww  w  .  j  av a 2s  . c o m
        for (int i = 0; i < subList.size(); i++) {
            Map<String, Object> map = subList.get(i);
            String outColumnStr = "insert into " + tableName + " (";
            String outValueStr = ") values(";
            String[] strs = insertColumn(fields, map);
            outColumnStr += strs[0];
            outValueStr += strs[1];
            String sql = outColumnStr + outValueStr + ")";
            query = em.createNativeQuery(sql);
            query.executeUpdate();
        }
        try {
            em.getTransaction().commit();
        } catch (Exception ex) {
            em.getTransaction().rollback();
            Logger.getLogger(DataGetAndPushController.class.getName()).log(Level.SEVERE, null, ex);
            em.close();
            return "{\"code\":\"1\",\"msg\":\"save failed\"}";//
        }
    }
    if (em != null) {
        em.close();
    }
    return "{\"code\":\"0\",\"msg\":\"save success\"}";//?
}

From source file:com.sixsq.slipstream.run.RunNodeResource.java

private void deleteNodeInstancesInTransaction(Representation entity) throws Exception {
    EntityManager em = PersistenceUtil.createEntityManager();
    EntityTransaction transaction = em.getTransaction();

    Run run = Run.loadFromUuid(getUuid(), em);
    try {//w w  w .  ja  v  a 2 s  . c  o m
        Form form = new Form(entity);
        boolean deleteOnly = "true".equals(form.getFirstValue(DELETE_INSTANCE_IDS_ONLY_FORM_PARAM, "").trim())
                ? true
                : false;
        if (!deleteOnly) {
            validateRun(run);
        }
        transaction.begin();

        String ids = form.getFirstValue(INSTANCE_IDS_REMOVE_FORM_PARAM, "");
        if (ids.isEmpty()) {
            throw new ResourceException(Status.CLIENT_ERROR_BAD_REQUEST,
                    "Provide list of node instance IDs to be removed from the Run.");
        } else {
            String cloudServiceName = "";
            try {
                cloudServiceName = run.getCloudServiceNameForNode(nodename);
            } catch (NullPointerException ex) {
                throwClientBadRequest("Invalid nodename: " + nodename);
            }
            List<String> instanceIds = Arrays.asList(ids.split("\\s*,\\s*"));
            for (String _id : instanceIds) {
                String instanceName = "";
                try {
                    instanceName = getNodeInstanceName(Integer.parseInt(_id));
                } catch (NumberFormatException ex) {
                    throwClientBadRequest("Invalid instance name: " + _id);
                }
                setRemovingNodeInstance(run, instanceName);
                run.removeNodeInstanceName(instanceName, cloudServiceName);
            }
            run.postEventScaleDown(nodename, instanceIds);
            // update instance ids
            removeNodeInstanceIndices(run, instanceIds);
            decrementNodeMultiplicityOnRun(instanceIds.size(), run);
        }

        if (!deleteOnly) {
            StateMachine.createStateMachine(run).tryAdvanceToProvisionning();
        }

        transaction.commit();
    } catch (Exception ex) {
        if (transaction.isActive()) {
            transaction.rollback();
        }
        throw ex;
    } finally {
        em.close();
    }

    getResponse().setStatus(Status.SUCCESS_NO_CONTENT);
}

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 v a2  s . 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();
}

From source file:com.headissue.pigeon.survey.answer.AnswerSurveyTest.java

void setUpPersistence() {
    survey = new Survey();
    survey.setName("vvk");
    survey.setStatus(SurveyStatus.ENABLED);
    survey.setCreateAt(createDate(2012, 8, 23, 12, 33));
    survey.setUpdateAt(createDate(2012, 8, 23, 12, 34));

    Question q1 = new Question();
    q1.setType(QuestionType.BOOL);//from  www  . java 2 s.  co  m
    q1.setTitle("allgemein");
    q1.setText("Gefllt Ihnen die neue Suche nach Vorverkaufsstellen?");
    q1.addAnswer("Ja", 1);
    q1.addAnswer("Nein", 2);
    q1.setOrderBy(1);
    survey.addQuestion(q1);

    Question q2 = new Question();
    q2.setType(QuestionType.CHOICE);
    q2.setTitle("allgemein");
    q2.setText("Bewerten Sie das Buttondesign:");
    q2.addAnswer("Eins", 1);
    q2.addAnswer("Zwei", 2);
    q2.addAnswer("Drei", 3);
    q2.addAnswer("Vier", 4);
    q2.addAnswer("Fnf", 5);
    q2.addAnswer("Sechs", 6);
    q2.setOrderBy(2);
    survey.addQuestion(q2);

    Question q3 = new Question();
    q3.setType(QuestionType.MULTIPLE);
    q3.setTitle("allgemein");
    q3.setText("Kreuzen Sie Zutreffendes an.");
    q3.addAnswer("Ich wnsche mir mehr Optionen", 1);
    q3.addAnswer("Ich wnsche mir einen Share-Button", 2);
    q3.addAnswer("Ich wnsche mir einen Drucken-Button", 3);
    q3.addAnswer("Was ist das denn? Amnesiestaub! Fantastisch!", 4);
    q3.addAnswer("Ich bin vollends zufrieden", 5);
    q3.setOrderBy(3);
    survey.addQuestion(q3);

    Question q4 = new Question();
    q4.setType(QuestionType.FREE);
    q4.setTitle("allgemein");
    q4.setText("Haben Sie noch einen Verbesserungsvorschlag?");
    q4.setOrderBy(4);
    survey.addQuestion(q4);

    EntityManager manager = factory.createEntityManager();
    manager.getTransaction().begin();
    manager.persist(survey);
    manager.persist(q1);
    manager.persist(q2);
    manager.persist(q3);
    manager.persist(q4);
    manager.getTransaction().commit();
    //manager.close();

    question1 = createValues(q1);
    question2 = createValues(q2);
    question3 = createValues(q3);
    question4 = createValues(q4);

    LogUtils.debug(log, "question 1: %s", question1);
    LogUtils.debug(log, "question 2: %s", question2);
    LogUtils.debug(log, "question 3: %s", question3);
    LogUtils.debug(log, "question 4: %s", question4);
}

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

/**
 * A utility class to load the user directory.
 * //  w  w  w. j  a  v a2  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:com.espirit.moddev.examples.uxbridge.newsdrilldown.test.CommandITCase.java

public void printMetaCats() throws Exception {
    System.out.println("\n\n\n");
    EntityManager em = emf.createEntityManager();
    try {/*from   w  w w.  j  a v a2s  .  co  m*/
        EntityTransaction et = em.getTransaction();
        et.begin();
        Query query = em.createQuery(new StringBuilder().append("SELECT x FROM metaCategory x").toString());
        List<NewsMetaCategory> metaList = query.getResultList();
        for (NewsMetaCategory temp : metaList) {
            System.out.println("META: " + temp.getName() + " / " + temp.getLastmodified());
        }
        et.commit();
    } finally {
        em.close();
    }
    System.out.println("\n\n\n");

}