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.github.horrorho.inflatabledonkey.cloud.clients.BackupAccountClient.java

public static Optional<BackupAccount> backupAccount(HttpClient httpClient, CloudKitty kitty,
        ProtectionZone zone) throws IOException {

    List<CloudKit.RecordRetrieveResponse> responses = kitty.recordRetrieveRequest(httpClient, "mbksync",
            "BackupAccount");
    logger.debug("-- backupAccount() - responses: {}", responses);

    if (responses.size() != 1) {
        logger.warn("-- backupAccount() - bad response list size: {}", responses);
        return Optional.empty();
    }//from   w  ww .  j  a va2s .c om

    CloudKit.ProtectionInfo protectionInfo = responses.get(0).getRecord().getProtectionInfo();

    Optional<ProtectionZone> optionalNewZone = zone.newProtectionZone(protectionInfo);
    if (!optionalNewZone.isPresent()) {
        logger.warn("-- backupAccount() - failed to retrieve protection info");
        return Optional.empty();
    }
    ProtectionZone newZone = optionalNewZone.get();

    BackupAccount backupAccount = BackupAccountFactory.from(responses.get(0).getRecord(),
            (bs, id) -> newZone.decrypt(bs, id).get()); // TODO rework BackupAccount
    logger.debug("-- backupAccount() - backup account: {}", backupAccount);

    return Optional.of(backupAccount);
}

From source file:com.uber.hoodie.common.util.ParquetUtils.java

/**
 * Read the rowKey list matching the given filter, from the given parquet file. If the filter is empty,
 * then this will return all the rowkeys.
 *
 * @param filePath              The parquet file path.
 * @param configuration         configuration to build fs object
 * @param filter                record keys filter
 * @return Set                  Set of row keys matching candidateRecordKeys
 *//*from  w w w.j a v  a2s.  c  o  m*/
public static Set<String> filterParquetRowKeys(Configuration configuration, Path filePath, Set<String> filter) {
    Optional<RecordKeysFilterFunction> filterFunction = Optional.empty();
    if (CollectionUtils.isNotEmpty(filter)) {
        filterFunction = Optional.of(new RecordKeysFilterFunction(filter));
    }
    Configuration conf = new Configuration(configuration);
    conf.addResource(getFs(filePath.toString(), conf).getConf());
    Schema readSchema = HoodieAvroUtils.getRecordKeySchema();
    AvroReadSupport.setAvroReadSchema(conf, readSchema);
    AvroReadSupport.setRequestedProjection(conf, readSchema);
    ParquetReader reader = null;
    Set<String> rowKeys = new HashSet<>();
    try {
        reader = AvroParquetReader.builder(filePath).withConf(conf).build();
        Object obj = reader.read();
        while (obj != null) {
            if (obj instanceof GenericRecord) {
                String recordKey = ((GenericRecord) obj).get(HoodieRecord.RECORD_KEY_METADATA_FIELD).toString();
                if (!filterFunction.isPresent() || filterFunction.get().apply(recordKey)) {
                    rowKeys.add(recordKey);
                }
            }
            obj = reader.read();
        }
    } catch (IOException e) {
        throw new HoodieIOException("Failed to read row keys from Parquet " + filePath, e);

    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
                // ignore
            }
        }
    }
    return rowKeys;
}

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

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

    int stepCountValue = Integer.parseInt(asRequiredString(node, "value"));

    if (stepCountValue == 0) {
        return Optional.empty();
    }/*w  ww  .  j a v  a  2  s. co  m*/

    StepCount.Builder builder = new StepCount.Builder(stepCountValue);

    Optional<LocalDate> stepDate = asOptionalLocalDate(node, "dateTime");

    if (stepDate.isPresent()) {
        LocalDateTime startDateTime = stepDate.get().atTime(0, 0, 0, 0);

        builder.setEffectiveTimeFrame(TimeInterval.ofStartDateTimeAndDuration(
                combineDateTimeAndTimezone(startDateTime), new DurationUnitValue(DAY, 1)));
    }

    StepCount measure = builder.build();
    Optional<Long> externalId = asOptionalLong(node, "logId");

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

From source file:com.uber.hoodie.common.TestRawTripPayload.java

public TestRawTripPayload(String jsonData, String rowKey, String partitionPath, String schemaStr)
        throws IOException {
    this(Optional.of(jsonData), rowKey, partitionPath, schemaStr, false);
}

From source file:net.hamnaberg.json.Property.java

public Optional<String> getPrompt() {
    return delegate.has("prompt") ? Optional.of(delegate.get("prompt").asText()) : Optional.<String>empty();
}

From source file:se.sawano.eureka.legacyregistrar.boot.LegacyInstances.java

public Optional<SpringBootInstanceConfig> withInstanceId(final String instanceId) {
    notNull(instanceId);/*from  w  w w. j av  a  2  s.  com*/

    final List<SpringBootInstanceConfig> found = instances.stream()
            .filter(conf -> instanceId.equals(conf.getInstanceId())).collect(toList());
    if (found.isEmpty()) {
        return Optional.empty();
    }

    isTrue(1 == found.size(), "Instance id must be unique. Found %d with id '%s'", found.size(), instanceId);

    return Optional.of(found.get(0));
}

From source file:io.kamax.mxisd.lookup.provider.DnsLookupProvider.java

private Optional<String> getDomain(String email) {
    int atIndex = email.lastIndexOf("@");
    if (atIndex == -1) {
        return Optional.empty();
    }// ww  w .  ja v a 2  s . c o  m

    return Optional.of(email.substring(atIndex + 1));
}

From source file:com.poc.restfulpoc.service.CustomerServiceTest.java

License:asdf

@BeforeAll
public void setUp() throws Exception {
    MockitoAnnotations.initMocks(this);
    this.customerService = new CustomerServiceImpl(this.customerRepository, this.jmsTemplate);
    given(this.customerRepository.findAll()).willReturn(Arrays.asList(this.customer));
    given(this.customerRepository.findById(ArgumentMatchers.anyLong())).willReturn(Optional.of(this.customer));
    given(this.customerRepository.save(ArgumentMatchers.any(Customer.class))).willReturn(this.customer);
    given(this.customerRepository.findByFirstName(ArgumentMatchers.anyString()))
            .willReturn(Arrays.asList(this.customer));
    given(this.customerRepository.findByFirstName(ArgumentMatchers.eq("asdfg"))).willReturn(new ArrayList<>());

    given(this.customerRepository.findById(ArgumentMatchers.eq(0L))).willReturn(Optional.empty());

    BDDMockito.willDoNothing().given(this.jmsTemplate)
            .convertAndSend(ArgumentMatchers.eq("jms.message.endpoint"), ArgumentMatchers.anyLong());
}

From source file:com.okta.scim.SingleUserController.java

/**
 * Queries database for {@link User} with identifier
 * Updates response code with '404' if unable to locate {@link User}
 *
 * @param id {@link User#id}//w w  w  .ja  va  2 s .c  o  m
 * @param response HTTP Response
 * @return {@link #scimError(String, Optional)} / JSON {@link Map} of {@link User}
 *
 */
@RequestMapping(method = RequestMethod.GET)
public @ResponseBody Map singeUserGet(@PathVariable String id, HttpServletResponse response) {

    try {
        User user = db.findById(id).get(0);
        return user.toScimResource();

    } catch (Exception e) {
        response.setStatus(404);
        return scimError("User not found", Optional.of(404));
    }
}

From source file:org.zalando.logbook.httpclient.Response.java

@Override
public Charset getCharset() {
    return Optional.of(response).map(request -> request.getFirstHeader("Content-Type")).map(Header::getValue)
            .map(ContentType::parse).map(ContentType::getCharset).orElse(StandardCharsets.UTF_8);
}