Example usage for javax.persistence EntityManagerFactory createEntityManager

Introduction

In this page you can find the example usage for javax.persistence EntityManagerFactory createEntityManager.

Prototype

public EntityManager createEntityManager();

Source Link

Document

Create a new application-managed EntityManager.

Usage

From source file:org.rhq.server.metrics.migrator.DataSourceTest.java

public static void main(String[] args) throws Exception {
    BasicConfigurator.configure();//from   ww  w .  j  a v a  2s.com
    Logger.getRootLogger().setLevel(Level.INFO);
    Logger.getLogger("org.rhq").setLevel(Level.DEBUG);
    EntityManagerFactory entityManagerFactory = null;
    EntityManager entityManager = null;
    ExistingDataBulkExportSource source = null;
    try {
        entityManagerFactory = createEntityManager();
        entityManager = entityManagerFactory.createEntityManager();
        source = new ExistingPostgresDataBulkExportSource(entityManager,
                "SELECT  schedule_id, time_stamp, value, minvalue, maxvalue FROM RHQ_MEASUREMENT_DATA_NUM_1D");
        StopWatch stopWatch = new StopWatch();
        stopWatch.start();
        source.initialize();
        int rowIndex = 0;
        int maxResults = 30000;
        for (;;) {
            List<Object[]> existingData = source.getData(rowIndex, maxResults);
            if (existingData.size() < maxResults) {
                break;
            } else {
                rowIndex += maxResults;
            }
        }
        stopWatch.stop();
        System.out.println("Execution: " + stopWatch);
    } finally {
        if (source != null) {
            source.close();
        }
        if (entityManager != null) {
            entityManager.close();
        }
        if (entityManagerFactory != null) {
            entityManagerFactory.close();
        }
    }
}

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From source file:Department.java

public static void main(String[] a) throws Exception {
        JPAUtil util = new JPAUtil();

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
        EntityManager em = emf.createEntityManager();
        ProfessorService service = new ProfessorService(em);

        em.getTransaction().begin();/*w  w  w. ja  v  a  2 s  . c o  m*/

        service.findWithAlias();

        util.checkData("select * from EMP");

        em.getTransaction().commit();
        em.close();
        emf.close();
    }

---

From source file:Department.java

public static void main(String[] a) throws Exception {
        JPAUtil util = new JPAUtil();

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
        EntityManager em = emf.createEntityManager();
        ProfessorService service = new ProfessorService(em);

        em.getTransaction().begin();//from www. j ava  2  s  .co  m

        service.init(3);
        service.next();
        service.previous();

        for (Object o : service.getCurrentResults()) {
            System.out.print(o);
        }

        System.out.println("Page " + (service.getCurrentPage() + 1) + " of " + service.getMaxPages());

        if (service.getCurrentPage() == 0) {
            System.out.print("Previous disabled ");
        }

        if (service.getCurrentPage() + 1 == service.getMaxPages()) {
            System.out.print("Next disabled ");
        }

        util.checkData("select * from Professor");
        util.checkData("select * from Department");

        em.getTransaction().commit();
        em.close();
        emf.close();
    }

---

From source file:utilities.PopulateDatabase.java

public static void main(String[] args) throws Throwable {
    ApplicationContext applicationContext;
    EntityManagerFactory entityManagerFactory;
    EntityManager entityManager;/*from   www .  ja  v  a  2s  .  com*/
    EntityTransaction entityTransaction;

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

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

    initialise(entityManagerFactory, entityManager);

    entityTransaction.begin();
    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();
    }
}

---

From source file:com.chiralbehaviors.CoRE.kernel.Bootstrap.java

public static void main(String[] argv) throws Exception {
    if (argv.length != 2) {
        System.err.println("Usage: Bootstrap <jpa.properties> <output file>");
        System.exit(1);//from w  w  w.ja  va  2  s  .  c  o  m
    }
    Properties properties = new Properties();
    try (InputStream is = new FileInputStream(new File(argv[0]))) {
        properties.load(is);
    }

    EntityManagerFactory emf = Persistence.createEntityManagerFactory(WellKnownObject.CORE, properties);
    EntityManager em = emf.createEntityManager();
    Bootstrap bootstrap = new Bootstrap(em);
    bootstrap.clear();
    em.getTransaction().begin();
    bootstrap.bootstrap();
    em.getTransaction().commit();
    em.clear();
    bootstrap.serialize(argv[1]);
}

---

From source file:com.medicaid.mmis.util.DataLoader.java

/**
 * The main function, imports the files given as arguments.
 * //  w  w w  . j  av  a 2  s. com
 * @param args the file names
 * @throws IOException for read/write errors
 * @throws PortalServiceException for any other errors
 */
public static void main(String[] args) throws IOException, PortalServiceException {
    if (args.length != 2) {
        System.out.println("2 file path arguments are required.");
        return;
    }

    PropertyConfigurator.configure("log4j.properties");
    logger = Logger.getLogger(DataLoader.class);

    LookupServiceBean lookupBean = new LookupServiceBean();
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("cms-data-load");
    EntityManager em = emf.createEntityManager();
    lookupBean.setEm(em);
    DataLoader loader = new DataLoader();
    loader.setLookup(lookupBean);

    SequenceGeneratorBean sequence = new SequenceGeneratorBean();
    sequence.setEm(em);

    ProviderEnrollmentServiceBean enrollmentBean = new ProviderEnrollmentServiceBean();
    enrollmentBean.setEm(em);
    enrollmentBean.setSequence(sequence);
    enrollmentBean.setLookupService(lookupBean);

    loader.setEnrollmentService(enrollmentBean);

    long processId = sequence.getNextValue("PROCESS_ID");
    System.out.println("Started process id " + processId);

    BufferedReader br = null;
    PrintWriter accepted = null;
    PrintWriter rejected = null;
    try {
        System.out.println("Processing file 1...");
        File success = new File("accepted_1_" + processId + ".txt");
        File failure = new File("rejected_1_" + processId + ".txt");
        success.createNewFile();
        failure.createNewFile();
        accepted = new PrintWriter(success);
        rejected = new PrintWriter(failure);
        br = new BufferedReader(new FileReader(args[0]));
        String line = null;
        int total = 0;
        int errors = 0;
        while ((line = br.readLine()) != null) {
            total++;
            try {
                em.getTransaction().begin();
                loader.readProviderFile(new ByteArrayInputStream(line.getBytes()));
                em.getTransaction().commit();
                accepted.println(line);
                logger.info("Commit row " + total);
            } catch (PortalServiceException e) {
                rejected.println(line);
                em.getTransaction().rollback();
                errors++;
                logger.error("Rollback row " + total + " :" + e.getMessage());
            }
        }

        accepted.flush();
        accepted.close();
        rejected.flush();
        rejected.close();
        br.close();
        System.out.println("Total records read: " + total);
        System.out.println("Total rejected: " + errors);

        System.out.println("Processing file 2...");
        success = new File("accepted_2_" + processId + ".txt");
        failure = new File("rejected_2_" + processId + ".txt");
        success.createNewFile();
        failure.createNewFile();
        accepted = new PrintWriter(success);
        rejected = new PrintWriter(failure);
        br = new BufferedReader(new FileReader(args[1]));
        line = null;
        total = 0;
        errors = 0;
        while ((line = br.readLine()) != null) {
            total++;
            try {
                em.getTransaction().begin();
                Map<String, OwnershipInformation> owners = loader
                        .readWS000EXT2OWNBEN(new ByteArrayInputStream(line.getBytes()));
                for (Map.Entry<String, OwnershipInformation> entry : owners.entrySet()) {
                    enrollmentBean.addBeneficialOwners(entry.getKey(), entry.getValue());
                }
                em.getTransaction().commit();
                accepted.println(line);
                logger.info("Commit row " + total);
            } catch (PortalServiceException e) {
                rejected.println(line);
                em.getTransaction().rollback();
                errors++;
                logger.error("Rollback row " + total + " :" + e.getMessage());
            }
        }
        accepted.flush();
        rejected.flush();
        System.out.println("Total records read: " + total);
        System.out.println("Total rejected: " + errors);

    } finally {
        if (br != null) {
            br.close();
        }
        if (accepted != null) {
            accepted.close();
        }
        if (rejected != null) {
            rejected.close();
        }
    }
}

---

From source file:ro.allevo.fintpws.security.RolesUtils.java

public static boolean hasReadAuthorityOnQueue(QueueEntity queueEntity) {
    EntityManagerFactory configEntityManagerFactory = Persistence.createEntityManagerFactory("fintpCFG");
    EntityManager entityManagerConfig = configEntityManagerFactory.createEntityManager();
    Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
    UserEntity loggedUser = (UserEntity) authentication.getPrincipal();
    Query query = entityManagerConfig
            .createQuery("SELECT ur.roleid FROM UserRoleEntity ur, QueuesRoleMapEntity qr "
                    + "WHERE ur.roleid = qr.roleid " + "AND ur.userid=:userid " + "AND qr.queueid=:queueid");
    query.setParameter("userid", loggedUser.getUserid());
    query.setParameter("queueid", queueEntity.getGuid());
    List roles = query.getResultList();
    if (roles.isEmpty()) {
        return false;
    }//from   w  w w  .j  a  v  a2 s .  c  o  m
    return true;
}

---

From source file:ro.allevo.fintpws.security.RolesUtils.java

public static boolean hasWriteAuthorityOnQueue(QueueEntity queueEntity) {
    EntityManagerFactory configEntityManagerFactory = Persistence.createEntityManagerFactory("fintpCFG");
    EntityManager entityManagerConfig = configEntityManagerFactory.createEntityManager();
    Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
    UserEntity loggedUser = (UserEntity) authentication.getPrincipal();
    Query query = entityManagerConfig.createQuery(
            "SELECT ur.roleid FROM UserRoleEntity ur, QueuesRoleMapEntity qr " + "WHERE ur.roleid = qr.roleid "
                    + "AND ur.userid=:userid " + "AND qr.queueid=:queueid " + "AND qr.actiontype = 'RW'");
    query.setParameter("userid", loggedUser.getUserid());
    query.setParameter("queueid", queueEntity.getGuid());
    List roles = query.getResultList();
    if (roles.isEmpty()) {
        return false;
    }//  www.  j  ava  2s .  c o  m
    return true;
}

---

From source file:GestoreAccountLocale.GestoreAccountLocale.java

private static void memorizzaAccount(Account account) {
    EntityManagerFactory emf = javax.persistence.Persistence.createEntityManagerFactory("ClientMDBPU");
    EntityManager em = emf.createEntityManager();
    em.getTransaction().begin();/*from w ww.j a  v a  2s .c  o  m*/
    try {
        em.persist(account);
        em.getTransaction().commit();
    } catch (Exception e) {
        em.getTransaction().rollback();
    } finally {
        em.close();
    }
}

---

From source file:org.easy.test.criteria.DbHelper.java

public static int initDb(String connectionUrl, String... dataFiles) {

    Preconditions.checkNotNull(connectionUrl);
    Preconditions.checkNotNull(dataFiles);

    Preconditions.checkArgument(dataFiles.length > 0);

    Connection conn = null;//from  www.  j a  v  a2s  .c  o  m
    int errorCount = 0;
    try {
        Class.forName(JDBC_DRIVER_CLASS);
        conn = DriverManager.getConnection(connectionUrl);
        Preconditions.checkNotNull(conn, "DB Connection is null");

        EntityManagerFactory factory = Persistence.createEntityManagerFactory(PERSISTENCE_UNIT_NAME);
        em = factory.createEntityManager();

        for (String fileName : dataFiles) {
            if (!myDataFiles.contains(fileName)) {
                InputStream fileInputStream = DbHelper.class.getClassLoader().getResourceAsStream(fileName);

                Preconditions.checkNotNull(fileInputStream, "Unable to find " + fileName);
                errorCount += org.apache.derby.tools.ij.runScript(conn, fileInputStream, "UTF-8", System.out,
                        "UTF-8");
                myDataFiles.add(fileName);
                log.debug("Processed " + dataFiles);
            } else {
                log.debug("Skiped " + dataFiles);
            }
        }

        populated = true;

    } catch (SQLException e) {
        log.error(e.getMessage(), e);
        errorCount++;
    } catch (UnsupportedEncodingException e) {
        log.error(e.getMessage(), e);
        errorCount++;
    } catch (Throwable e) {
        log.error(e.getMessage(), e);
        errorCount++;
    } finally {
        try {
            if (conn != null)
                conn.close();
        } catch (SQLException e) {
            log.warn(e);
            errorCount++;
        }
    }

    return errorCount;
}

---

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