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:co.runrightfast.core.utils.ConfigUtils.java

static Optional<Boolean> getBoolean(final Config config, final String path, final String... paths) {
    if (!hasPath(config, path, paths)) {
        return Optional.empty();
    }/*from ww w . j  a  v  a  2s. co  m*/
    return Optional.of(config.getBoolean(configPath(path, paths)));
}

From source file:com.thinkbiganalytics.common.velocity.DefaultVelocityService.java

@Override
public Optional<Template> getTemplate(String name) {
    try {/*from www  . j ava  2  s  .  c  om*/
        Optional<Template> t = Optional.of(velocityEngine.getTemplate(name));
        if (t.isPresent()) {
            registeredTemplates.add(t.get().getName());
        }
        return t;
    } catch (ResourceNotFoundException e) {
        return Optional.empty();
    } catch (ParseErrorException e) {
        //WARN!!!
        return Optional.empty();
    }
}

From source file:org.openmhealth.shim.fitbit.mapper.FitbitBodyMassIndexDataPointMapper.java

@Override
protected Optional<DataPoint<BodyMassIndex>> asDataPoint(JsonNode node) {

    TypedUnitValue<BodyMassIndexUnit> bmiValue = new TypedUnitValue<>(KILOGRAMS_PER_SQUARE_METER,
            asRequiredDouble(node, "bmi"));

    BodyMassIndex.Builder builder = new BodyMassIndex.Builder(bmiValue);

    Optional<OffsetDateTime> dateTime = combineDateTimeAndTimezone(node);

    if (dateTime.isPresent()) {
        builder.setEffectiveTimeFrame(dateTime.get());
    }//from   ww  w .  jav a2 s .c  o m

    Optional<Long> externalId = asOptionalLong(node, "logId");

    return Optional.of(newDataPoint(builder.build(), externalId.orElse(null)));
}

From source file:io.kamax.mxisd.util.GsonParser.java

public Optional<JsonObject> parseOptional(HttpResponse res) {
    try {/*  w w  w .ja  v a 2 s.com*/
        return Optional.of(parse(res.getEntity().getContent()));
    } catch (IOException e) {
        return Optional.empty();
    }
}

From source file:com.spotify.styx.model.deprecated.WorkflowConfiguration.java

public static com.spotify.styx.model.WorkflowConfiguration create(WorkflowConfiguration workflowConfiguration) {
    return com.spotify.styx.model.WorkflowConfiguration.create(workflowConfiguration.id(),
            workflowConfiguration.partitioning(), Optional.empty(), workflowConfiguration.dockerImage(),
            workflowConfiguration.dockerArgs(), Optional.of(workflowConfiguration.dockerTerminationLogging()),
            Secret.create(workflowConfiguration.secret()), workflowConfiguration.resources());
}

From source file:org.trustedanalytics.cloud.cc.api.CcServiceInstance.java

@JsonIgnore
public String getServicePlanName() {
    Optional<CcServiceInstance> serviceInstance = Optional.of(this);
    return serviceInstance.map(CcServiceInstance::getServicePlan).map(CcServicePlan::getName).orElse(null);
}

From source file:io.pravega.controller.store.stream.tables.HistoryRecord.java

/**
 * Read record from the history table at the specified offset.
 *
 * @param historyTable  history table/*w ww.j  av  a 2  s. c om*/
 * @param offset        offset to read from
 * @param ignorePartial if set, ignore if the record is partial
 * @return
 */
public static Optional<HistoryRecord> readRecord(final byte[] historyTable, final int offset,
        boolean ignorePartial) {
    if (offset >= historyTable.length) {
        return Optional.empty();
    }

    final int length = BitConverter.readInt(historyTable, offset);

    if (offset + length > historyTable.length) {
        // this is a partial record
        if (ignorePartial) {
            return Optional.empty();
        } else {
            return Optional.of(parsePartial(historyTable, offset));
        }
    }

    return Optional.of(parse(historyTable, offset));
}

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

@Test
public void shouldReturnSegmentInformation() {
    SegmentItemInformation segmentItemInformation = new SegmentItemInformation.Builder().build();
    when(mockSegmentService.findSegmentItemInformation("segmentKey"))
            .thenReturn(Optional.of(segmentItemInformation));

    ResponseEntity<SegmentItemInformation> response = segmentController.getSegmentInformation("segmentKey");

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

From source file:com.ikanow.aleph2.security.db.AbstractDb.java

@SuppressWarnings("unchecked")
protected void initDb() {
    if (_core_management_db == null) {
        _core_management_db = _context.getCoreManagementDbService();
    }/*w ww  . j a v  a  2 s . com*/
    if (_underlying_management_db == null) {
        _underlying_management_db = _context.getServiceProvider(IManagementDbService.class, Optional.empty())
                .get().get();
    }

    db = _underlying_management_db.getUnderlyingPlatformDriver(ICrudService.class, Optional.of(getDbOptions()))
            .get();
    logger.debug("Opened DB:" + getDbOptions() + ":" + db);
}

From source file:org.lendingclub.mercator.aws.RDSInstanceScanner.java

@Override
public Optional<String> computeArn(JsonNode n) {

    String region = n.get(AWSScanner.AWS_REGION_ATTRIBUTE).asText(null);
    String account = n.get(AccountScanner.ACCOUNT_ATTRIBUTE).asText(null);
    String dbInstanceId = n.get("aws_dbinstanceIdentifier").asText(null);

    Preconditions.checkState(!Strings.isNullOrEmpty(region), "aws_region not set");
    Preconditions.checkState(!Strings.isNullOrEmpty(account), "aws_account not set");
    Preconditions.checkState(!Strings.isNullOrEmpty(dbInstanceId), "aws_dbinstanceIdentifier not set");

    return Optional.of(String.format("arn:aws:rds:%s:%s:db:%s", region, account, dbInstanceId));
}