Example usage for java.util Optional of

Introduction

In this page you can find the example usage for java.util Optional of.

Prototype

public static <T> Optional<T> of(T value)

Source Link

Document

Returns an Optional describing the given non- null value.

Usage

From source file:org.anhonesteffort.p25.ACAP25.java

private Optional<Double> findActiveControlChannel(Integer systemId, Integer systemWacn, Site site) {
    for (Double channelFreq : site.getControlChannels()) {
        P25ChannelSpec channelSpec = new P25ChannelSpec(channelFreq);
        P25Channel channel = new P25Channel(channelSpec);
        ControlChannelQualifier channelQualifier = new ControlChannelQualifier(controlChannelPool,
                samplesController, channel, systemId, systemWacn);

        try {// ww  w . j a  va2 s  .c o  m

            Future<Optional<Double>> channelQualified = controlChannelPool.submit(channelQualifier);
            Optional<Double> controlFreq = channelQualified.get();

            if (controlFreq.isPresent()) {
                log.info(
                        "found active control channel at " + controlFreq.get() + " for site " + site.getName());
                return Optional.of(controlFreq.get());
            }

        } catch (InterruptedException | ExecutionException e) {
            log.error("error while identifying active control channels, exiting", e);
            java.lang.System.exit(1);
        }
    }

    return Optional.empty();
}

From source file:net.ctalkobt.syllogism.Context.java

/************************************************************************
 * Determines if a given syllogism for an equivalence type is valid.
 *
 * @param memeKey// w ww  . j a v a  2  s  .com
 * @param equivalence
 * @param memeValue
 * @return result if known, otherwise optional.empty(). 
 ***********************************************************************/
public Optional<Boolean> interrogate(Term memeKey, Copula equivalence, Term memeValue) {
    Collection<KeyValue<Copula, Term>> memeRelations = (Collection<KeyValue<Copula, Term>>) memeAssociations
            .get(memeKey);
    if (memeRelations == null || memeRelations.isEmpty()) {
        return Optional.empty();
    }

    Optional<KeyValue<Copula, Term>> result = memeRelations.parallelStream().findFirst()
            .filter((KeyValue<Copula, Term> kv) -> {
                if (kv.getKey().equals(equivalence) && kv.getValue().equals(memeValue)) {
                    return true;
                } else {
                    Optional<Boolean> result1 = interrogate(kv.getValue(), equivalence, memeValue);
                    return result1.isPresent();
                }
            });

    if (result.isPresent()) {
        return Optional.of(equivalence.getTruthEquivalency());
    }
    return Optional.empty();
}

From source file:com.openthinks.webscheduler.service.WebSecurityService.java

public Optional<User> validateUser(String userName, String userPass) {
    User user = getUsers().findByName(userName);
    if (user != null && userPass != null) {
        String encryptPass = DigestUtils.md5Hex(userPass);
        if (user.getPass().equals(encryptPass)) {
            User loginUserInfo = user.clone();//fix second login failed issue
            loginUserInfo.setPass(null);
            return Optional.of(loginUserInfo);
        }//from   ww  w.j  a  va2 s . c o  m
    }
    return Optional.empty();
}

From source file:com.devicehive.resource.DeviceNotificationResourceTest.java

@Test
public void should_get_response_with_status_200_and_notification_when_waitTimeout_is_0_and_polling_for_device() {
    DeviceClassEquipmentVO equipment = DeviceFixture.createEquipmentVO();
    DeviceClassUpdate deviceClass = DeviceFixture.createDeviceClass();
    deviceClass.setEquipment(Optional.of(Collections.singleton(equipment)));
    NetworkVO network = DeviceFixture.createNetwork();
    String guid = UUID.randomUUID().toString();
    DeviceUpdate deviceUpdate = DeviceFixture.createDevice(guid);
    deviceUpdate.setDeviceClass(Optional.of(deviceClass));
    deviceUpdate.setNetwork(Optional.of(network));
    DateTime timeStamp = new DateTime(DateTimeZone.UTC);

    // register device
    Response response = performRequest("/device/" + guid, "PUT", emptyMap(),
            singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), deviceUpdate, NO_CONTENT,
            null);//  w  w w .  j  a v a2  s . c o m
    assertNotNull(response);

    // Create notification
    DeviceNotification notification = DeviceFixture.createDeviceNotification();
    notification = performRequest("/device/" + guid + "/notification", "POST", emptyMap(),
            singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), notification, CREATED,
            DeviceNotification.class);
    assertNotNull(notification.getId());

    // poll notification
    Map<String, Object> params = new HashMap<>();
    params.put("waitTimeout", 0);
    params.put("timestamp", timeStamp);
    ArrayList notifications = new ArrayList();
    notifications = performRequest("/device/" + guid + "/notification/poll", "GET", params,
            singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), null, OK,
            notifications.getClass());
    assertNotNull(notifications);
    assertEquals(1, notifications.size());
}

From source file:com.fredhopper.connector.index.populator.CategoryPopulatorTest.java

@Before
public void setUp() {
    MockitoAnnotations.initMocks(this);

    final IndexConfig config = mock(IndexConfig.class);

    when(config.getLocales()).thenReturn(localesEnDe);
    when(source1.getIndexConfig()).thenReturn(config);
    when(source2.getIndexConfig()).thenReturn(config);

    final CategoryModel category1 = mock(CategoryModel.class);
    mockCategory(category1, 1);/*  ww  w  .  ja va2  s .  c om*/
    when(source1.getItem()).thenReturn(category1);
    when(parentResolver.resolve(category1)).thenReturn(Optional.empty());

    final CategoryModel category2 = mock(CategoryModel.class);
    mockCategory(category2, 2);
    when(source2.getItem()).thenReturn(category2);
    when(parentResolver.resolve(category2)).thenReturn(Optional.of(category1));

    when(sanitizeIdStrategy.sanitizeId("cat1")).thenReturn("cat1");
    when(sanitizeIdStrategy.sanitizeId("cat2")).thenReturn("cat2");

    categoryPopulator = new CategoryPopulator();
    categoryPopulator.setParentCategoryResolver(parentResolver);

    categoryPopulator.setSanitizeIdStrategy(sanitizeIdStrategy);

}

From source file:org.mytms.common.data.Pageable.java

/**
 * Returns an {@link Optional} so that it can easily be mapped on.
 * /*from www .j  a  va2  s .  c  o m*/
 * @return
 */
default Optional<Pageable> toOptional() {
    return isUnpaged() ? Optional.empty() : Optional.of(this);
}

From source file:org.ow2.proactive.workflow_catalog.rest.controller.WorkflowRevisionControllerTest.java

@Test
public void testGet() throws Exception {
    workflowRevisionController.get(BUCKET_ID, WF_ID, REV_ID, Optional.empty());
    verify(workflowRevisionService, times(1)).getWorkflow(BUCKET_ID, WF_ID, Optional.of(REV_ID),
            Optional.empty());//  www. ja  v  a  2s.co  m
}

From source file:com.ikanow.aleph2.storm.samples.TestJavaScriptTopology.java

@Before
public void injectModules() throws Exception {
    final Config config = ConfigFactory
            .parseFile(new File("./example_config_files/context_local_test.properties"));

    try {/*  w  w  w .j  av a2 s  . co  m*/
        _app_injector = ModuleUtils.createTestInjector(Arrays.asList(), Optional.of(config));
        _local_cluster = new LocalCluster();
        this.ips = readIps();

        _app_injector.injectMembers(this);
    } catch (Exception e) {
        try {
            e.printStackTrace();
        } catch (Exception ee) {
            System.out.println(ErrorUtils.getLongForm("{0}", e));
        }
    }
}

From source file:org.springsource.restbucks.payment.PaymentServiceImplUnitTest.java

@Test
public void throwsOrderPaidEventOnPayment() {

    CreditCard creditCard = new CreditCard(NUMBER, "Oliver Gierke", Month.JANUARY, Year.of(2020));
    when(creditCardRepository.findByNumber(NUMBER)).thenReturn(Optional.of(creditCard));

    Order order = new Order();
    ReflectionTestUtils.setField(order, "id", 1L);

    paymentService.pay(order, NUMBER);/*from  ww w. java 2s .  co m*/

    verify(publisher).publishEvent(Mockito.any((OrderPaidEvent.class)));
}

From source file:de.Keyle.MyPet.util.Updater.java

protected Optional<Update> check() {
    try {//from w w w  . j a  v a2 s .  c o  m
        String parameter = "";
        parameter += "&package=" + MyPetApi.getCompatUtil().getInternalVersion();
        parameter += "&build=" + MyPetVersion.getBuild();
        parameter += "&dev=" + MyPetVersion.isDevBuild();

        String url = "http://update.mypet-plugin.de/" + plugin + "?" + parameter;

        // no data will be saved on the server
        String content = Util.readUrlContent(url);
        JSONParser parser = new JSONParser();
        JSONObject result = (JSONObject) parser.parse(content);

        if (result.containsKey("latest")) {
            String version = result.get("latest").toString();
            int build = ((Long) result.get("build")).intValue();
            return Optional.of(new Update(version, build));
        }
    } catch (Exception ignored) {
        ignored.printStackTrace();
    }
    return Optional.empty();
}