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.devicehive.dao.rdbms.IdentityProviderDaoRdbmsImpl.java

@Override
public boolean deleteById(@NotNull String id) {
    return createNamedQuery("IdentityProvider.deleteByName", Optional.of(CacheConfig.bypass()))
            .setParameter("name", id).executeUpdate() > 0;
}

From source file:net.sourceforge.fullsync.cli.CliRuntimeConfiguration.java

private Optional<String> parseProfileToRun(CommandLine args) {
    if (args.hasOption('r')) {
        return Optional.of(args.getOptionValue('r'));
    }//from w  ww  . j  ava  2s .com
    return Optional.empty();
}

From source file:io.maxthomas.dictum.lid.ValidISO3Languages.java

/**
 *
 * @param abbr/*from  w  w  w.  ja  va 2s .co m*/
 *          a {@link String} representing a possible ISO3 abbreviation
 * @return {@link Optional#empty()} if not present, otherwise, an
 *         {@link Optional} {@link String} wrapping the value
 */
public static final Optional<String> getName(final String abbr) {
    return isValidISO3Abbreviation(abbr) ? Optional.of(iso3AbbrNameMap.get(abbr)) : Optional.empty();
}

From source file:fi.helsinki.opintoni.service.CourseServiceTest.java

@Test
public void thatStudentCourseDtosAreFetched() {
    expectStudentCourses();//  w w w.  j a va 2 s  . com

    Set<CourseDto> courseDtos = courseService.getCourses(Optional.of(TestConstants.STUDENT_NUMBER),
            Optional.empty(), Locale.ENGLISH);

    assertThat(courseDtos).hasSize(1);
    assertThat(courseDtos, hasCourseWithRealisationId(TestConstants.STUDENT_COURSE_REALISATION_ID));
    assertThat(courseDtos.iterator().next().teachers.get(0)).isEqualTo("Rantala Kari A");
}

From source file:alfio.manager.support.FeeCalculator.java

public static BiFunction<Integer, Long, Optional<Long>> getCalculator(Event event,
        ConfigurationManager configurationManager) {
    return (numTickets, amountInCent) -> {
        if (isPlatformModeEnabled(event, configurationManager)) {
            String feeAsString = configurationManager.getStringConfigValue(
                    Configuration.from(event.getOrganizationId(), event.getId(), PLATFORM_FEE), "0");
            String minimumFee = configurationManager.getStringConfigValue(
                    Configuration.from(event.getOrganizationId(), event.getId(), PLATFORM_MINIMUM_FEE), "0");
            return Optional.of(new FeeCalculator(feeAsString, minimumFee, numTickets).calculate(amountInCent));
        }//  w  ww.  j  a  va2 s. co  m
        return Optional.empty();
    };
}

From source file:de.se_rwth.langeditor.util.Misc.java

public static Optional<Image> loadImage(String location) {
    try {/*from  w  w  w  .  j  av a 2s  .com*/
        URL url = new URL("platform:/plugin/texteditor-core/" + location);
        InputStream inputStream = url.openConnection().getInputStream();
        return Optional.of(new Image(Display.getCurrent(), inputStream));
    } catch (IOException e) {
        return Optional.empty();
    }
}

From source file:com.teradata.benchto.driver.utils.PropertiesUtils.java

public static Optional<List<String>> splitProperty(String value) {
    if (isNullOrEmpty(value)) {
        return Optional.empty();
    }/*from   ww  w.j a  va 2s  . co m*/

    Iterable<String> values = Splitter.on(",").trimResults().split(value);
    return Optional.of(ImmutableList.copyOf(values));
}

From source file:org.openmhealth.shim.jawbone.mapper.JawboneBodyWeightDataPointMapper.java

@Override
protected Optional<Measure.Builder<BodyWeight, ?>> newMeasureBuilder(JsonNode listEntryNode) {

    Optional<Double> optionalWeight = asOptionalDouble(listEntryNode, "weight");

    if (!optionalWeight.isPresent()) {
        return Optional.empty();
    }/*from  w w  w.ja  v  a  2 s.c  o m*/

    return Optional.of(new BodyWeight.Builder(new MassUnitValue(KILOGRAM, optionalWeight.get())));
}

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

@JsonIgnore
public UUID getGuid() {
    Optional<CcOrg> space = Optional.of(this);
    return space.map(CcOrg::getMetadata).map(CcMetadata::getGuid).orElse(null);
}

From source file:org.openmhealth.shim.withings.mapper.WithingsBodyWeightDataPointMapper.java

@Override
public Optional<Measure.Builder<BodyWeight, ?>> newMeasureBuilder(JsonNode measuresNode) {

    Optional<BigDecimal> value = getValueForMeasureType(measuresNode, BODY_WEIGHT);

    if (!value.isPresent()) {
        return empty();
    }//  w  w w  .j  a v  a2  s  . co  m

    return Optional.of(new BodyWeight.Builder(new MassUnitValue(KILOGRAM, value.get())));
}