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.naoghuman.abclist.model.LinkMappingType.java

public static Optional<LinkMappingType> getType(final String type) {
    Optional<LinkMappingType> optional = Optional.empty();
    for (LinkMappingType value : values()) {
        if (value.getType().equals(type)) {
            optional = Optional.of(value);
            break;
        }/*from  ww w. java 2  s  .  c om*/
    }

    return optional;
}

From source file:com.newtranx.util.reverse_proxy.NginxUtils.java

public static final Optional<String> getRealIp(Function<String, String> headerLoader) {
    String realIp = headerLoader.apply("X-Real-IP");
    String xForwardedFor = headerLoader.apply("X-Forwarded-For");
    if (!StringUtils.isEmpty(xForwardedFor)) {
        int i = xForwardedFor.indexOf(',');
        if (i > 0)
            realIp = xForwardedFor.substring(0, i);
        else/*from w ww . j a  va 2  s .com*/
            realIp = xForwardedFor.trim();
    }
    return StringUtils.isEmpty(realIp) ? Optional.empty() : Optional.of(realIp);
}

From source file:com.palantir.docker.compose.connection.waiting.SuccessOrFailure.java

public static SuccessOrFailure failure(String message) {
    return ImmutableSuccessOrFailure.of(Optional.of(message));
}

From source file:com.synopsys.integration.blackduck.service.model.BlackDuckQuery.java

public static Optional<BlackDuckQuery> createQuery(final String prefix, final String parameter) {
    if (StringUtils.isNotBlank(parameter)) {
        return Optional.of(new BlackDuckQuery(prefix + ":" + parameter));
    }//  w ww  . j  a  va 2 s  .  c  o  m

    return Optional.empty();
}

From source file:com.ikanow.aleph2.data_import_manager.utils.BeanDiffUtils.java

public static Optional<BucketDiffBean> createDiffBean(final DataBucketBean updated_bucket,
        final DataBucketBean original_bucket) {
    return Optional.of(BeanTemplateUtils.build(BucketDiffBean.class)
            .with(BucketDiffBean::diffs, createDataBucketBeanDiffs(updated_bucket, original_bucket))
            .with(BucketDiffBean::lib_diffs, createSharedLibraryDiffs(updated_bucket, original_bucket)).done()
            .get());//from   w  w w.j a va  2 s.c o  m
}

From source file:fi.helsinki.moodi.service.importing.Enrollment.java

public static Enrollment forStudent(final String studentNumber, boolean approved) {
    return new Enrollment(ROLE_STUDENT, Optional.empty(), Optional.of(studentNumber), null, Optional.empty(),
            approved);/*from   w w  w  . j a  va 2s.c  o m*/
}

From source file:org.zalando.riptide.Binding.java

static <A> Binding<A> create(final A attribute, final Executor executor) {
    return create(Optional.of(attribute), executor);
}

From source file:com.spotify.apollo.route.JsonSerializerMiddlewaresTest.java

private static void checkContentType(Response<ByteString> response) {
    assertThat(response.headers().get("Content-Type"), is(Optional.of("application/json; charset=utf-8")));
}

From source file:com.facebook.buck.testutil.integration.TarInspector.java

/**
 * readTarZst returns a file name --> contents map for the files contained in 'tar'.
 *
 * <p>The returned map is a freshly created one, and changes to the byte[] in it do not affect the
 * underlying archive./*from  w  w w  . j av  a  2  s.c om*/
 */
public static ImmutableMap<String, byte[]> readTarZst(Path tar) throws IOException, CompressorException {
    return readTar(Optional.of(CompressorStreamFactory.ZSTANDARD), tar);
}

From source file:fi.helsinki.moodi.service.importing.Enrollment.java

public static Enrollment forTeacher(final String teacherId) {
    return new Enrollment(ROLE_TEACHER, Optional.of(teacherId), Optional.empty(), null, Optional.empty(), true);
}