Example usage for java.util UUID randomUUID

Introduction

In this page you can find the example usage for java.util UUID randomUUID.

Prototype

public static UUID randomUUID() 

Source Link

Document

Static factory to retrieve a type 4 (pseudo randomly generated) UUID.

Usage

From source file:io.mapzone.arena.csw.InsertRecordRequest.java

/**
 * Test./* www  .j  a v a2 s  . c  om*/
 */
public static final void main(String[] args) throws Exception {
    RecordXML record = new RecordXML();
    CswMetadataDCMI md = new CswMetadataDCMI(null, record);
    md.setIdentifier(UUID.randomUUID().toString());
    md.setTitle("Test");
    md.setDescription("HashCode: " + md.hashCode());

    InsertRecordRequest request = new InsertRecordRequest(record).baseUrl.put("http://localhost:8090/csw");
    request.execute(new NullProgressMonitor());
}

---

From source file:com.doctor.ignite.example.spring.SpringIgniteExample.java

public static void main(String[] args) throws InterruptedException {
    AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext(
            SpringIgniteConfig.class);
    Ignite ignite = applicationContext.getBean(Ignite.class);

    CacheConfiguration<UUID, Person> cacheConfiguration = applicationContext
            .getBean("CacheConfigurationForDays", CacheConfiguration.class);

    IgniteCache<UUID, Person> igniteCache2 = ignite.cache("cacheForDays");

    if (igniteCache2 == null) {
        CacheConfiguration<UUID, Person> cacheConfiguration2 = new CacheConfiguration<>(cacheConfiguration);
        cacheConfiguration2.setName("cacheForDays");
        igniteCache2 = ignite.createCache(cacheConfiguration2);

        System.out.println("--------createCache:" + "cacheForDays");
    }/*  ww w  .j a  va2s . c o  m*/

    Person person = new Person(UUID.randomUUID(), "doctor", BigDecimal.valueOf(88888888.888), "man", "...");
    System.out.println(igniteCache2.get(person.getId()));
    igniteCache2.put(person.getId(), person);
    System.out.println(igniteCache2.get(person.getId()));

    TimeUnit.SECONDS.sleep(6);
    System.out.println(igniteCache2.get(person.getId()));

    System.out.println("");
    Person person1 = new Person(UUID.randomUUID(), "doctor 118", BigDecimal.valueOf(88888888.888), "man",
            "...");
    igniteCache2.put(person1.getId(), person1);

    Person person2 = new Person(UUID.randomUUID(), "doctor who 88 ", BigDecimal.valueOf(188888888.888), "man",
            "...");
    igniteCache2.put(person2.getId(), person2);

    try (QueryCursor<List<?>> queryCursor = igniteCache2.query(new SqlFieldsQuery("select name from Person"))) {
        for (List<?> entry : queryCursor) {
            System.out.println(entry);
        }
    }

    applicationContext.close();
}

---

From source file:com.manisha.allmybooksarepacked.utility.JSONUtils.java

public static void main(String[] args) throws IOException {
    Book one = new Book();
    one.setIsbn10(UUID.randomUUID().toString());
    Book two = new Book();
    one.setIsbn10(UUID.randomUUID().toString());

    List<Book> bookList = new ArrayList<>();
    bookList.add(one);//from ww  w. j  av  a 2s  .c  o  m
    bookList.add(two);
    System.out.println(objectToJSON(bookList));
}

---

From source file:com.btoddb.fastpersitentqueue.speedtest.SpeedTest.java

public static void main(String[] args) throws Exception {
    if (0 == args.length) {
        System.out.println();//from   w  w w. j av a2  s .  co  m
        System.out.println("ERROR: must specify the config file path/name");
        System.out.println();
        System.exit(1);
    }

    SpeedTestConfig config = SpeedTestConfig.create(args[0]);

    System.out.println(config.toString());

    File theDir = new File(config.getDirectory(), "speed-" + UUID.randomUUID().toString());
    FileUtils.forceMkdir(theDir);

    Fpq queue = config.getFpq();
    queue.setJournalDirectory(new File(theDir, "journals"));
    queue.setPagingDirectory(new File(theDir, "pages"));

    try {
        queue.init();

        //
        // start workers
        //

        AtomicLong counter = new AtomicLong();
        AtomicLong pushSum = new AtomicLong();
        AtomicLong popSum = new AtomicLong();

        long startTime = System.currentTimeMillis();

        Set<SpeedPushWorker> pushWorkers = new HashSet<SpeedPushWorker>();
        for (int i = 0; i < config.getNumberOfPushers(); i++) {
            pushWorkers.add(new SpeedPushWorker(queue, config, counter, pushSum));
        }

        Set<SpeedPopWorker> popWorkers = new HashSet<SpeedPopWorker>();
        for (int i = 0; i < config.getNumberOfPoppers(); i++) {
            popWorkers.add(new SpeedPopWorker(queue, config, popSum));
        }

        ExecutorService pusherExecSrvc = Executors.newFixedThreadPool(
                config.getNumberOfPushers() + config.getNumberOfPoppers(), new ThreadFactory() {
                    @Override
                    public Thread newThread(Runnable runnable) {
                        Thread t = new Thread(runnable);
                        t.setName("SpeedTest-Pusher");
                        return t;
                    }
                });

        ExecutorService popperExecSrvc = Executors.newFixedThreadPool(
                config.getNumberOfPushers() + config.getNumberOfPoppers(), new ThreadFactory() {
                    @Override
                    public Thread newThread(Runnable runnable) {
                        Thread t = new Thread(runnable);
                        t.setName("SpeedTest-Popper");
                        return t;
                    }
                });

        long startPushing = System.currentTimeMillis();
        for (SpeedPushWorker sw : pushWorkers) {
            pusherExecSrvc.submit(sw);
        }

        long startPopping = System.currentTimeMillis();
        for (SpeedPopWorker sw : popWorkers) {
            popperExecSrvc.submit(sw);
        }

        //
        // wait to finish
        //

        long endTime = startTime + config.getDurationOfTest() * 1000;
        long endPushing = 0;
        long displayTimer = 0;
        while (0 == endPushing || !queue.isEmpty()) {
            // display status every second
            if (1000 < (System.currentTimeMillis() - displayTimer)) {
                System.out.println(String.format("status (%ds) : journals = %d : memory segments = %d",
                        (endTime - System.currentTimeMillis()) / 1000,
                        queue.getJournalMgr().getJournalIdMap().size(),
                        queue.getMemoryMgr().getSegments().size()));
                displayTimer = System.currentTimeMillis();
            }

            pusherExecSrvc.shutdown();
            if (pusherExecSrvc.awaitTermination(100, TimeUnit.MILLISECONDS)) {
                endPushing = System.currentTimeMillis();
                // tell poppers, all pushers are finished
                for (SpeedPopWorker sw : popWorkers) {
                    sw.stopWhenQueueEmpty();
                }
            }
        }

        long endPopping = System.currentTimeMillis();

        popperExecSrvc.shutdown();
        popperExecSrvc.awaitTermination(10, TimeUnit.SECONDS);

        long numberOfPushes = 0;
        for (SpeedPushWorker sw : pushWorkers) {
            numberOfPushes += sw.getNumberOfEntries();
        }

        long numberOfPops = 0;
        for (SpeedPopWorker sw : popWorkers) {
            numberOfPops += sw.getNumberOfEntries();
        }

        long pushDuration = endPushing - startPushing;
        long popDuration = endPopping - startPopping;

        System.out.println("push - pop checksum = " + pushSum.get() + " - " + popSum.get() + " = "
                + (pushSum.get() - popSum.get()));
        System.out.println("push duration = " + pushDuration);
        System.out.println("pop duration = " + popDuration);
        System.out.println();
        System.out.println("pushed = " + numberOfPushes);
        System.out.println("popped = " + numberOfPops);
        System.out.println();
        System.out.println("push entries/sec = " + numberOfPushes / (pushDuration / 1000f));
        System.out.println("pop entries/sec = " + numberOfPops / (popDuration / 1000f));
        System.out.println();
        System.out.println("journals created = " + queue.getJournalsCreated());
        System.out.println("journals removed = " + queue.getJournalsRemoved());
    } finally {
        if (null != queue) {
            queue.shutdown();
        }
        //            FileUtils.deleteDirectory(theDir);
    }
}

---

From source file:instamo.AccumuloApp.java

public static void main(String[] args) throws Exception {
    File tmpDir = new File(FileUtils.getTempDirectory(), "macc-" + UUID.randomUUID().toString());

    try {//from   w  ww  .  j a  va  2  s .  c  o m
        MiniAccumuloCluster la = new MiniAccumuloCluster(tmpDir, "pass1234", new HashMap<String, String>());
        la.start();

        System.out.println("\n   ---- Running Accumulo App against accumulo-" + la.getAccumuloVersion() + "\n");

        run(la.getInstanceName(), la.getZookeepers(), "pass1234", args);

        System.out.println("\n   ---- Ran Accumulo App\n");

        la.stop();
    } finally {
        FileUtils.deleteQuietly(tmpDir);
    }
}

---

From source file:instamo.MapReduceExample.java

public static void main(String[] args) throws Exception {
    File tmpDir = new File(FileUtils.getTempDirectory(), "macc-" + UUID.randomUUID().toString());

    MiniAccumuloClusterWrapper la = new MiniAccumuloClusterWrapperImpl(tmpDir, "pass1234");
    la.start();/*from w ww  .  j av  a 2 s  . c o  m*/

    System.out.println("\n   ---- Running Mapred Against Accumulo\n");

    run(la.getInstanceName(), la.getZooKeepers(), "pass1234", args);

    System.out.println("\n   ---- Ran Mapred Against Accumulo\n");

    la.stop();
}

---

From source file:ch.rasc.wampspring.demo.client.CallClientSockJs.java

public static void main(String[] args) throws InterruptedException {

    List<Transport> transports = new ArrayList<>(2);
    transports.add(new WebSocketTransport(new StandardWebSocketClient()));
    transports.add(new RestTemplateXhrTransport());
    WebSocketClient webSocketClient = new SockJsClient(transports);

    JsonFactory jsonFactory = new MappingJsonFactory(new ObjectMapper());

    CountDownLatch latch = new CountDownLatch(10_000);
    TestTextWebSocketHandler handler = new TestTextWebSocketHandler(jsonFactory, latch);

    Long[] start = new Long[1];
    ListenableFuture<WebSocketSession> future = webSocketClient.doHandshake(handler,
            "ws://localhost:8080/wampOverSockJS");
    future.addCallback(wss -> {//  w ww  . jav  a  2 s.  com
        start[0] = System.currentTimeMillis();
        for (int i = 0; i < 10_000; i++) {

            CallMessage callMessage = new CallMessage(UUID.randomUUID().toString(), "testService.sum", i,
                    i + 1);
            try {
                wss.sendMessage(new TextMessage(callMessage.toJson(jsonFactory)));
            } catch (Exception e) {
                System.out.println("ERROR SENDING CALLMESSAGE" + e);
                latch.countDown();
            }
        }

    }, t -> {
        System.out.println("DO HANDSHAKE ERROR: " + t);
        System.exit(1);
    });

    if (!latch.await(3, TimeUnit.MINUTES)) {
        System.out.println("SOMETHING WENT WRONG");
    }

    System.out.println((System.currentTimeMillis() - start[0]) / 1000 + " seconds");
    System.out.println("SUCCESS: " + handler.getSuccess());
    System.out.println("ERROR  : " + handler.getError());
}

---

From source file:Student.java

public static void main(String[] a) throws Exception {
        em.getTransaction().begin();/*w w w.  j a  v  a  2 s.co m*/

        Student student = new Student();
        student.setId(UUID.randomUUID().toString());
        student.setName("Joe");
        student.setDob(Calendar.getInstance().getTime());

        em.persist(student);
        em.flush();
        em.getTransaction().commit();

        Query query = em.createQuery("SELECT e FROM Student e");
        List<Student> list = (List<Student>) query.getResultList();
        System.out.println(list);

        em.close();
        emf.close();

        Helper.checkData();
    }

---

From source file:ke.co.tawi.babblesms.server.utils.randomgenerate.IncomingLogGenerator.java

/**
 * @param args/*from  w ww.  j a v  a  2 s  .  co m*/
 */
public static void main(String[] args) {
    System.out.println("Have started IncomingSMSGenerator.");
    File outFile = new File("/tmp/logs/incomingSMS.csv");
    RandomDataGenerator randomDataImpl = new RandomDataGenerator();

    String randomStrFile = "/tmp/random.txt";

    List<String> randomStrings = new ArrayList<>();
    int randStrLength = 0;

    long startDate = 1412380800; // Unix time in seconds for Oct 4 2014
    long stopDate = 1420070340; // Unix time for in seconds Dec 31 2014

    SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // 2011-06-01 00:16:45" 

    List<String> shortcodeUuids = new ArrayList<>();
    shortcodeUuids.add("094def52-bc18-4a9e-9b84-c34cc6476c75");
    shortcodeUuids.add("e9570c5d-0cc4-41e5-81df-b0674e9dda1e");
    shortcodeUuids.add("a118c8ea-f831-4288-986d-35e22c91fc4d");
    shortcodeUuids.add("a2688d72-291b-470c-8926-31a903f5ed0c");
    shortcodeUuids.add("9bef62f6-e682-4efd-98e9-ca41fa4ef993");

    int shortcodeCount = shortcodeUuids.size() - 1;

    try {
        randomStrings = FileUtils.readLines(new File(randomStrFile));
        randStrLength = randomStrings.size();

        for (int j = 0; j < 30000; j++) {
            FileUtils.write(outFile,
                    // shortcodeUuids.get(randomDataImpl.nextInt(0, shortcodeCount)) + "|"   // Destination 
                    UUID.randomUUID().toString() + "|" // Unique Code
                            + randomDataImpl.nextLong(new Long("254700000000").longValue(),
                                    new Long("254734999999").longValue())
                            + "|" // Origin
                            + shortcodeUuids.get(randomDataImpl.nextInt(0, shortcodeCount)) + "|"
                            + randomStrings.get(randomDataImpl.nextInt(0, randStrLength - 1)) + "|" // Message
                            + "N|" // deleted
                            + dateFormatter.format(
                                    new Date(randomDataImpl.nextLong(startDate, stopDate) * 1000))
                            + "\n", // smsTime                  
                    true); // Append to file                              
        }

    } catch (IOException e) {
        System.err.println("IOException in main.");
        e.printStackTrace();
    }

    System.out.println("Have finished IncomingSMSGenerator.");
}

---

From source file:org.jasig.portlet.data.Exporter.java

public static void main(String[] args) throws Exception {
    String dir = args[0];/*from   w  w  w  . ja v a2  s. c o  m*/
    String importExportContext = args[1];
    String sessionFactoryBeanName = args[2];
    String modelClassName = args[3];
    String serviceBeanName = args[4];
    String serviceBeanMethodName = args[5];

    ApplicationContext context = PortletApplicationContextLocator.getApplicationContext(importExportContext);
    SessionFactory sessionFactory = context.getBean(sessionFactoryBeanName, SessionFactory.class);
    Class<?> modelClass = Class.forName(modelClassName);

    Object service = context.getBean(serviceBeanName);
    Session session = sessionFactory.getCurrentSession();
    Transaction transaction = session.beginTransaction();

    JAXBContext jc = JAXBContext.newInstance(modelClass);
    Marshaller marshaller = jc.createMarshaller();
    marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

    Method method = service.getClass().getMethod(serviceBeanMethodName);
    List<?> objects = (List<?>) method.invoke(service, null);

    for (Object o : objects) {
        session.lock(o, LockMode.NONE);
        JAXBElement je2 = new JAXBElement(new QName(modelClass.getSimpleName().toLowerCase()), modelClass, o);
        String output = dir + File.separator + UUID.randomUUID().toString() + ".xml";
        try {
            marshaller.marshal(je2, new FileOutputStream(output));
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }
    transaction.commit();
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »