Example usage for java.util Optional of

List of usage examples for java.util Optional of

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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:co.runrightfast.core.hazelcast.impl.TypesafeHazelcastConfig.java

/**
 * @param name Hazelcast instance name// ww w . jav  a 2  s  .c  o  m
 * @param config TypeSafe typeSafeConfig
 * @param serializerConfigs can be empty
 */
public TypesafeHazelcastConfig(@NonNull final String name, @NonNull final com.typesafe.config.Config config,
        @NonNull final Set<SerializerConfig> serializerConfigs) {
    this.hazelcastConfig = createHazelcastConfig(name, config, serializerConfigs.isEmpty() ? Optional.empty()
            : Optional.of(ImmutableSet.copyOf(serializerConfigs)));
}

From source file:basedefense.client.version.ModificationVersionCheck.java

/**
 * Checks the modification version.//from   w w w . j  av a2  s  .  c  o m
 *
 * @return The version.
 */
public Optional<String> check() {
    // We will only run this check once as this check may take a lot of time to process
    if (this.latestVersion != null)
        return this.latestVersion;

    InputStreamReader inputStreamReader = null;

    try {
        HttpGet getRequest = new HttpGet(API_URL + String.format(API_PATTERN, "LordAkkarin", "BaseDefense2"));
        HttpResponse response = this.httpClient.execute(getRequest);
        Preconditions.checkState(response.getStatusLine().getStatusCode() == 200,
                "Expected status code 200 but received %s", response.getStatusLine());

        HttpEntity entity = response.getEntity();
        inputStreamReader = new InputStreamReader(entity.getContent());

        Gson gson = new Gson();
        JsonObject object = gson.fromJson(inputStreamReader, JsonObject.class);
        Preconditions.checkState(object.has("tag_name"), "No valid version found.");

        this.latestVersion = Optional.of(object.get("tag_name").getAsString());
    } catch (Exception ex) {
        BaseDefenseModification.getInstance().getLogger()
                .warn("Unable to retrieve version information: " + ex.getMessage(), ex);
        this.latestVersion = Optional.empty();
    } finally {
        IOUtils.closeQuietly(inputStreamReader);
    }

    return this.latestVersion;
}

From source file:com.ikanow.aleph2.examples.client.services.TestExampleClientService.java

@Before
public void setup() throws Exception {
    final String temp_dir = System.getProperty("java.io.tmpdir") + File.separator;

    // OK we're going to use guice, it was too painful doing this by hand...            
    final Config config = ConfigFactory
            .parseReader(new InputStreamReader(this.getClass().getResourceAsStream("/example_test.properties")))
            .withValue("globals.local_root_dir", ConfigValueFactory.fromAnyRef(temp_dir))
            .withValue("globals.local_cached_jar_dir", ConfigValueFactory.fromAnyRef(temp_dir))
            .withValue("globals.distributed_root_dir", ConfigValueFactory.fromAnyRef(temp_dir))
            .withValue("globals.local_yarn_config_dir", ConfigValueFactory.fromAnyRef(temp_dir));

    final Injector app_injector = ModuleUtils.createTestInjector(Arrays.asList(), Optional.of(config));
    app_injector.injectMembers(this);

    _core_mgmt_db = _context.getCoreManagementDbService();
}

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

@Before
public void setup() throws IOException {
    bucket = bucketRepository.save(new Bucket("bucket"));

    firstWorkflowRevision = workflowRevisionService.createWorkflowRevision(bucket.getId(), Optional.empty(),
            IntegrationTestUtil.getWorkflowAsByteArray("workflow.xml"));

    secondWorkflowRevision = workflowRevisionService.createWorkflowRevision(bucket.getId(),
            Optional.of(firstWorkflowRevision.id),
            IntegrationTestUtil.getWorkflowAsByteArray("workflow-updated.xml"));
}

From source file:com.ikanow.aleph2.security.service.IkanowV1DataGroupRoleProvider.java

@SuppressWarnings("unchecked")
protected void initDb() {
    if (_core_management_db == null) {
        _core_management_db = _context.getCoreManagementDbService().readOnlyVersion();
    }//from   w  ww .ja  v  a  2s.  co  m
    if (_underlying_management_db == null) {
        _underlying_management_db = _context.getService(IManagementDbService.class, Optional.empty()).get();
    }
    if (personDb == null) {
        String personOptions = "social.person";
        personDb = _underlying_management_db
                .getUnderlyingPlatformDriver(ICrudService.class, Optional.of(personOptions)).get();
    }
    if (sourceDb == null) {
        String ingestOptions = "ingest.source";
        sourceDb = _underlying_management_db
                .getUnderlyingPlatformDriver(ICrudService.class, Optional.of(ingestOptions)).get();
    }
    if (bucketDb == null) {
        bucketDb = _core_management_db.getDataBucketStore();
    }
    if (shareDb == null) {
        String shareOptions = "social.share";
        shareDb = _underlying_management_db
                .getUnderlyingPlatformDriver(ICrudService.class, Optional.of(shareOptions)).get();
    }
    if (communityDb == null) {
        String communityOptions = "social.community";
        communityDb = _underlying_management_db
                .getUnderlyingPlatformDriver(ICrudService.class, Optional.of(communityOptions)).get();
    }
}

From source file:net.hamnaberg.json.generator.CollectionGeneratorTest.java

@Test
public void templateCollection() throws Exception {
    JsonNode collection = new Collection.Builder(COLLECTION_URI)
            .withTemplate(Template/*from   ww w  .ja  va2  s .  c  o m*/
                    .create(Arrays.asList(Property.value("one", Optional.of("One"), Optional.<Value>empty()))))
            .build().asJson();

    assertNotNull(collection);
    assertEquals("1.0", collection.get("version").asText());
    assertEquals(COLLECTION_URI.toString(), collection.get("href").asText());
    assertEquals(createTemplate(), collection.get("template"));
}

From source file:org.ulyssis.ipp.snapshot.Snapshot.java

public Optional<Long> getId() {
    if (id != -1)
        return Optional.of(id);
    else/*from   www.jav  a2 s .c om*/
        return Optional.empty();
}

From source file:com.ejisto.core.classloading.javassist.ObjectEditor.java

private static Optional<String> getFieldMarker(String fieldName) {
    if (StringUtils.isBlank(fieldName)) {
        return Optional.empty();
    }// w w w.  j  av a  2s. c o  m
    return Optional.of(PREFIX + fieldName);
}

From source file:com.spotify.apollo.http.server.ApolloRequestHandlerTest.java

@Test
public void shouldReturnPayloadWhenPresent() throws Exception {
    httpServletRequest.setContent("hi there".getBytes(StandardCharsets.UTF_8));

    assertThat(requestHandler.asApolloRequest(httpServletRequest).payload(),
            is(Optional.of(ByteString.encodeUtf8("hi there"))));
}

From source file:com.devicehive.defects.Defect157NotificationTest.java

@Before
public void prepareNotifications() {
    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);// w w  w . java 2  s  .  c  om
    assertNotNull(response);

    {
        DeviceNotification notification = createDeviceNotification("c1");
        notification = performRequest("/device/" + guid + "/notification", "POST", emptyMap(),
                singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), notification, CREATED,
                DeviceNotification.class);

        assertNotNull(notification.getId());
    }

    {
        DeviceNotification notification = createDeviceNotification("c2");
        notification = performRequest("/device/" + guid + "/notification", "POST", emptyMap(),
                singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), notification, CREATED,
                DeviceNotification.class);

        assertNotNull(notification.getId());
    }

    {
        DeviceNotification notification = createDeviceNotification("c3");
        notification = performRequest("/device/" + guid + "/notification", "POST", emptyMap(),
                singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), notification, CREATED,
                DeviceNotification.class);

        assertNotNull(notification.getId());
    }
}