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:com.hortonworks.streamline.streams.security.service.SecurityCatalogService.java

public Optional<Role> getRole(String roleName) {
    List<QueryParam> qps = QueryParam.params(Role.NAME, String.valueOf(roleName));
    Collection<Role> roles = listRoles(qps);
    return roles.isEmpty() ? Optional.empty() : Optional.of(roles.iterator().next());
}

From source file:com.devicehive.defects.Defect157CommandTest.java

@Before
public void prepareCommands() {
    DeviceClassEquipmentVO equipment = DeviceFixture.createEquipmentVO();
    DeviceClassUpdate deviceClass = DeviceFixture.createDeviceClass();
    deviceClass.setEquipment(Optional.of(Collections.singleton(equipment)));
    NetworkVO network = DeviceFixture.createNetwork();
    DeviceUpdate deviceUpdate = DeviceFixture.createDevice(guid);
    deviceUpdate.setDeviceClass(Optional.of(deviceClass));
    deviceUpdate.setNetwork(Optional.of(network));

    // register device
    Response response = performRequest("/device/" + guid, "PUT", emptyMap(),
            singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), deviceUpdate, NO_CONTENT,
            null);/*from   w ww.ja  va2s .  c  om*/
    assertNotNull(response);

    {
        DeviceCommand command = createDeviceCommand("c1", "s2");
        command = performRequest("/device/" + guid + "/command", "POST", emptyMap(),
                singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), command, CREATED,
                DeviceCommand.class);

        assertNotNull(command.getId());
    }

    {
        DeviceCommand command = createDeviceCommand("c2", "s1");
        command = performRequest("/device/" + guid + "/command", "POST", emptyMap(),
                singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), command, CREATED,
                DeviceCommand.class);

        assertNotNull(command.getId());
    }

    {
        DeviceCommand command = createDeviceCommand("c3", "s3");
        command = performRequest("/device/" + guid + "/command", "POST", emptyMap(),
                singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), command, CREATED,
                DeviceCommand.class);

        assertNotNull(command.getId());
    }
}

From source file:tds.assessment.web.endpoints.ItemControllerTest.java

@Test
public void itShouldReturnItemMetadataForItem() {
    ItemFileMetadata itemFileMetadata = ItemFileMetadata.create(ItemFileType.ITEM, "test", "test", "test");
    when(mockItemService.findItemFileMetadataByItemKey("SBAC_PT", 1, 4))
            .thenReturn(Optional.of(itemFileMetadata));
    ResponseEntity<ItemFileMetadata> response = itemController.findItemFileMetadata("SBAC_PT", 1, null, 4L);

    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
    assertThat(response.getBody()).isEqualTo(itemFileMetadata);
}

From source file:com.ethercamp.harmony.service.PeersService.java

@PostConstruct
private void postConstruct() {
    // gather blocks to calculate hash rate
    ethereum.addListener(new EthereumListenerAdapter() {
        @Override//from   ww w  .j  av  a 2 s .  co  m
        public void onRecvMessage(Channel channel, Message message) {
            // notify client about new block
            // using PeerDTO as it already has both country fields
            if (message.getCommand() == EthMessageCodes.NEW_BLOCK) {
                clientMessageService.sendToTopic("/topic/newBlockFrom",
                        createPeerDTO(channel.getPeerId(), channel.getInetSocketAddress().getHostName(), 0l,
                                0.0, 0, true, null, Optional.of(channel.getEthHandler().getBestKnownBlock())
                                        .map(b -> b.getNumber()).orElse(0L)));
            }
        }
    });

    createGeoDatabase();
}

From source file:com.arpnetworking.metrics.portal.hosts.impl.ElasticSearchHostRegistryTest.java

@Test
public void testAddHost() throws InterruptedException {
    final Host expectedHost = addOrUpdateHost("testAddHost-host1",
            MetricsSoftwareState.LATEST_VERSION_INSTALLED, null);

    // Indexing is asynchronous at an interval of 1 second (see @Before)
    Thread.sleep(2000);/*from   w w w  .  ja va2  s  .c  om*/

    final QueryResult<Host> result = _repository.createQuery()
            .partialHostname(Optional.of(expectedHost.getHostname())).execute();
    final Host actualHost = Iterables.getFirst(result.values(), null);
    Assert.assertEquals(expectedHost, actualHost);
    Assert.assertEquals(1, result.total());
}

From source file:tech.beshu.ror.integration.JwtAuthTests.java

@Test
public void rejectTokentWithUserClaimAndCustomHeader() throws Exception {
    int sc = test(makeToken(KEY, makeClaimMap("inexistent_claim", "user")), Optional.of("x-custom-header"),
            false);//w ww. j a  va2 s . c  o m
    assertEquals(401, sc);
}

From source file:io.knotx.mocks.knot.KnotContextKeys.java

private Optional<Object> toJson(Buffer buffer) {
    return Optional
            .of(buffer.toString().trim().charAt(0) == '{' ? buffer.toJsonObject() : buffer.toJsonArray());
}

From source file:org.homiefund.web.controllers.SignUpController.java

@PostMapping("/signup/")
public String submit(@Valid @ModelAttribute UserRegistrationForm userRegistrationForm, BindingResult result,
        Model model) {// www.j  a  v  a  2 s . c o m
    log.info(userRegistrationForm.getName());
    if (result.hasErrors()) {
        clearPasswords(userRegistrationForm);

        return "signup";
    }

    try {
        Optional<InvitationDTO> invitation;
        if (StringUtils.isEmpty(userRegistrationForm.getInviteToken())) {
            invitation = Optional.empty();
        } else {
            InvitationDTO invite = new InvitationDTO();
            invite.setHash(userRegistrationForm.getInviteToken());

            invitation = Optional.of(invite);
        }

        userRegistrationForm.setPassword(bCryptPasswordEncoder.encode(userRegistrationForm.getPassword()));
        registrationService.register(mapper.map(userRegistrationForm, UserDTO.class), invitation);
    } catch (FieldException fe) {
        result.rejectValue(fe.getField(), fe.getMessage());

        clearPasswords(userRegistrationForm);

        return "signup";
    }

    return "redirect:/";
}

From source file:co.runrightfast.core.utils.ConfigUtils.java

static Optional<Integer> getInt(final Config config, final String path, final String... paths) {
    if (!hasPath(config, path, paths)) {
        return Optional.empty();
    }/*from  w w w  .  j  a  v a2 s.c o m*/
    return Optional.of(config.getInt(configPath(path, paths)));
}

From source file:com.khartec.waltz.web.endpoints.auth.AuthenticationEndpoint.java

private Optional<Filter> instantiateFilter(String className) {
    try {//  w w w .  j a v  a 2  s. co  m
        LOG.info("Setting authentication filter to: " + className);

        Filter filter = (Filter) Class.forName(className).getConstructor(SettingsService.class)
                .newInstance(settingsService);

        return Optional.of(filter);
    } catch (Exception e) {
        LOG.error("Cannot instantiate authentication filter class: " + className, e);
        return Optional.empty();
    }
}