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.zalando.riptide.SeriesSelector.java

@Override
public Optional<HttpStatus.Series> attributeOf(final ClientHttpResponse response) throws IOException {
    return Optional.of(response.getStatusCode().series());
}

From source file:com.ikanow.aleph2.core.shared.utils.TimeSliceDirUtils.java

/** Given a pair of (optional) human readable strings (which are assumed to refer to the past)
 *  returns a pair of optional dates/*  w w w  .ja  va 2s  .  c o  m*/
 * @param input_config
 * @return
 */
public static Tuple2<Optional<Date>, Optional<Date>> getQueryTimeRange(
        final AnalyticThreadJobInputConfigBean input_config, final Date now) {
    Function<Optional<String>, Optional<Date>> parseDate = maybe_date -> maybe_date
            .map(datestr -> TimeUtils.getSchedule(datestr, Optional.of(now))).filter(res -> res.isSuccess())
            .map(res -> res.success())
            // OK so this wants to be backwards in time always...
            .map(date -> {
                if (date.getTime() > now.getTime()) {
                    final long diff = date.getTime() - now.getTime();
                    return Date.from(now.toInstant().minusMillis(diff));
                } else
                    return date;
            });

    final Optional<Date> tmin = parseDate.apply(Optional.ofNullable(input_config.time_min()));
    final Optional<Date> tmax = parseDate.apply(Optional.ofNullable(input_config.time_max()));

    return Tuples._2T(tmin, tmax);
}

From source file:io.vertx.json.schema.internal.EmailFormatValidator.java

@Override
public Optional<String> validate(final String subject) {
    if (EmailValidator.getInstance(false, true).isValid(subject)) {
        return Optional.empty();
    }/*from w w  w  .j a  v a 2  s .  c om*/
    return Optional.of(String.format("[%s] is not a valid email address", subject));
}

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

public static Optional<Value> createOptionalValue(Object value) {
    Value v = createValue(value);//  www.  j  a va2 s.c  o m
    if (v.isNull()) {
        return Optional.empty();
    }
    return Optional.of(v);
}

From source file:io.github.retz.scheduler.MesosHTTPFetcher.java

public static Optional<String> sandboxDownloadUri(String master, String slaveId, String frameworkId,
        String executorId, String path) {
    Optional<String> base = sandboxUri("download", master, slaveId, frameworkId, executorId);
    if (base.isPresent()) {
        try {//w  w  w . j  a  v  a2 s . c  om
            String encodedPath = java.net.URLEncoder.encode(path,
                    java.nio.charset.StandardCharsets.UTF_8.toString());
            return Optional.of(base.get() + encodedPath);
        } catch (UnsupportedEncodingException e) {
            return Optional.empty();
        }
    }
    return Optional.empty();
}

From source file:com.astamuse.asta4d.web.form.flow.base.StepAwaredValidationFormHelper.java

static final Object getValidationTargetByAnnotation(Object form, String step) {
    String cacheKey = step + "@" + form.getClass().getName();
    Optional<Field> oField = ValidationTargetFieldCache.get(cacheKey);

    if (oField == null) {
        List<Field> list = new ArrayList<>(ClassUtil.retrieveAllFieldsIncludeAllSuperClasses(form.getClass()));
        Iterator<Field> it = list.iterator();
        while (it.hasNext()) {
            Field f = it.next();// w w  w. j  ava 2 s.c o  m
            StepAwaredValidationTarget vtAnno = f.getAnnotation(StepAwaredValidationTarget.class);
            if (vtAnno == null) {
                continue;
            }
            String representingStep = vtAnno.value();
            if (step.equals(representingStep)) {
                oField = Optional.of(f);
                break;
            }
        }
        if (oField == null) {
            oField = Optional.empty();
        }
        if (Configuration.getConfiguration().isCacheEnable()) {
            Map<String, Optional<Field>> newCache = new HashMap<>(ValidationTargetFieldCache);
            newCache.put(cacheKey, oField);
            ValidationTargetFieldCache = newCache;
        }
    }

    if (oField.isPresent()) {
        try {
            return FieldUtils.readField(oField.get(), form, true);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    } else {
        return form;
    }
}

From source file:cloudfoundry.norouter.f5.Json.java

public static <T> Optional<T> fromJsonish(Class<T> type, String jsonish) {
    if (jsonish == null || jsonish.trim().length() == 0) {
        return Optional.empty();
    }/*from ww  w.j a v a2s  .  c om*/
    try {
        return Optional.of(fromJson(type, unescape(jsonish)));
    } catch (IOException e) {
        return Optional.empty();
    }
}

From source file:com.epam.ta.reportportal.database.entity.item.issue.ExternalSystemType.java

public static Optional<String> knownIssue(String summary) {
    if (summary.trim().startsWith(ISSUE_MARKER)) {
        return Optional.of(StringUtils.substringAfter(summary, ISSUE_MARKER));
    } else {//from  ww  w. j  a v  a  2 s. co m
        return Optional.empty();
    }
}

From source file:junit.org.rapidpm.microservice.optionals.cli.MainTest002.java

@Test
public void test001() throws Exception {
    final Optional<String[]> args = Optional.of(new String[] { "-i /opt/hoppel/poppel/xx.properties" });
    Main.deploy(args);//from  ww w  . j  a  v a  2  s  .c  o  m
    Assertions.assertTrue(DefaultCmdLineOptions.wasproperlyExecuted);
    Main.stop();
}

From source file:nu.yona.server.subscriptions.service.UserPhotoService.java

@Transactional
public UserPhotoDto addUserPhoto(UUID userId, UserPhotoDto userPhoto) {
    UserPhoto userPhotoEntity = userPhotoRepository.save(UserPhoto.createInstance(userPhoto.getPngBytes()));
    userService.updateUserPhoto(userId, Optional.of(userPhotoEntity.getId()));
    return UserPhotoDto.createInstance(userPhotoEntity);
}