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.fredhopper.connector.index.provider.AbstractAttributeProvider.java

protected void addValues(final Table<Optional<String>, Optional<Locale>, String> table, final Locale locale,
        final Object values, final MetaAttributeData metaAttribute) {

    if (values != null) {
        final Optional<Locale> loc = locale != null ? Optional.of(locale) : Optional.empty();
        if (values instanceof Collection) {
            for (final Object value : (Collection) values) {
                final Optional<String> valueId = Optional
                        .ofNullable(generateAttributeValueId(metaAttribute, value));
                table.put(valueId, loc, value.toString());
            }/*from   w ww.  j a v a  2s . c  o m*/
        } else {
            final Optional<String> valueId = Optional
                    .ofNullable(generateAttributeValueId(metaAttribute, values));
            table.put(valueId, loc, values.toString());
        }
    }
}

From source file:co.runrightfast.core.utils.ConfigUtils.java

static Optional<Long> getDuration(final Config config, final TimeUnit unit, final String path,
        final String... paths) {
    if (!hasPath(config, path, paths)) {
        return Optional.empty();
    }//from w  w w  .j av a  2s  .  c  o  m
    return Optional.of(config.getDuration(configPath(path, paths), unit));
}

From source file:com.nike.cerberus.service.S3StoreService.java

public Optional<String> get(String path) {
    GetObjectRequest request = new GetObjectRequest(s3Bucket, getFullPath(path));

    try {//from w  w  w. j  a  va  2 s  . c o  m
        S3Object s3Object = s3Client.getObject(request);
        InputStream object = s3Object.getObjectContent();
        return Optional.of(IOUtils.toString(object, ConfigConstants.DEFAULT_ENCODING));
    } catch (AmazonServiceException ase) {
        if (StringUtils.equalsIgnoreCase(ase.getErrorCode(), "NoSuchKey")) {
            logger.debug(String.format("The S3 object doesn't exist. Bucket: %s, Key: %s", s3Bucket,
                    request.getKey()));
            return Optional.empty();
        } else {
            logger.error("Unexpected error communicating with AWS.", ase);
            throw ase;
        }
    } catch (IOException e) {
        String errorMessage = String.format(
                "Unable to read contents of S3 object. Bucket: %s, Key: %s, Expected Encoding: %s", s3Bucket,
                request.getKey(), ConfigConstants.DEFAULT_ENCODING);
        logger.error(errorMessage);
        throw new UnexpectedDataEncodingException(errorMessage, e);
    }
}

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

@Test
public void shouldReturnStimulusItemMetadata() throws Exception {
    String url = "/assessments/item/metadata?clientName=SBAC_PT&bankKey=1&stimulusKey=3";

    ItemFileMetadata itemFileMetadata = ItemFileMetadata.create(ItemFileType.STIMULUS, "1-3", "stimulusFile",
            "stimulusFile/");
    when(mockItemService.findItemFileMetadataByStimulusKey("SBAC_PT", 1, 3))
            .thenReturn(Optional.of(itemFileMetadata));

    MvcResult result = http.perform(get(url).contentType(MediaType.APPLICATION_JSON)).andExpect(status().isOk())
            .andReturn();/* w  w w  .  jav  a2 s  . c o  m*/

    ItemFileMetadata parsedResponse = objectMapper.readValue(result.getResponse().getContentAsByteArray(),
            ItemFileMetadata.class);
    assertThat(parsedResponse.getId()).isEqualTo("1-3");
    assertThat(parsedResponse.getFileName()).isEqualTo("stimulusFile");
    assertThat(parsedResponse.getFilePath()).isEqualTo("stimulusFile/");
    assertThat(parsedResponse.getItemType()).isEqualTo(ItemFileType.STIMULUS);
}

From source file:io.github.lxgaming.teleportbow.commands.AbstractCommand.java

@Override
public final Optional<Text> getHelp(CommandSource commandSource) {
    return Optional.of(Text.of(TextColors.BLUE, "Use ", TextColors.GREEN, "/", Reference.PLUGIN_ID, " help ",
            TextColors.BLUE, "to view available commands."));
}

From source file:org.xwiki.contrib.repository.npm.internal.NpmExtensionFile.java

@Override
public InputStream openStream() throws IOException {
    if (!webJarFileOptional.isPresent()) {
        webJarFileOptional = Optional.of(downloadJSPackageAndPrepareWebJar());
    }//w ww.j  ava2  s .  c  om
    File webJarFile = webJarFileOptional.get();
    return new FileInputStream(webJarFile);
}

From source file:nu.yona.server.ThymeleafConfiguration.java

private TemplateEngine templateEngine(ResourceBundleMessageSource messageSource,
        AbstractTemplateResolver... templateResolvers) {
    return templateEngine(Optional.of(messageSource), templateResolvers);
}

From source file:de.rnd7.urlcache.URLCacheLoader.java

private Optional<CachedElement> loadFromDisk(final URLCacheKey key) throws IOException {
    final File localFile = this.toLocalFile(key);

    Optional<CachedElement> result = Optional.empty();

    if (localFile.exists()) {
        try (final InputStream in = new FileInputStream(localFile);
                final ObjectInputStream objIn = new ObjectInputStream(in);) {

            final CachedElement element = (CachedElement) objIn.readObject();
            result = Optional.of(element);
        } catch (final ClassNotFoundException e) {
            throw new IOException(e);
        }/*from   ww w  .ja  va2 s . c  om*/
    }

    if (result.isPresent()) {
        if (!result.get().isValid()) {
            localFile.delete();
            result = Optional.empty();
        }
    }

    return result;
}

From source file:io.kamax.mxisd.backend.ldap.LdapAuthProvider.java

private Optional<String> getMsisdn(String phoneNumber) {
    try { // FIXME export into dedicated ThreePid class within SDK (copy from Firebase Auth)
        return Optional.of(phoneUtil.format(phoneUtil.parse(phoneNumber, null // No default region
        ), PhoneNumberUtil.PhoneNumberFormat.E164).substring(1)); // We want without the leading +
    } catch (NumberParseException e) {
        log.warn("Invalid phone number: {}", phoneNumber);
        return Optional.empty();
    }// w w  w  .  j  a va 2s  .  com
}