Example usage for java.util Optional ofNullable

Introduction

In this page you can find the example usage for java.util Optional ofNullable.

Prototype

@SuppressWarnings("unchecked")
public static <T> Optional<T> ofNullable(T value)

Source Link

Document

Returns an Optional describing the given value, if non- null , otherwise returns an empty Optional .

Usage

From source file:org.dswarm.graph.resources.GraphResource.java

protected Optional<Integer> getIntValue(final String key, final JsonNode json) {

    final JsonNode node = json.get(key);
    final Optional<Integer> optionalValue;

    if (node != null) {

        optionalValue = Optional.ofNullable(node.asInt());
    } else {/* w  ww  .  jav  a 2 s  .  co m*/

        optionalValue = Optional.empty();
    }

    return optionalValue;
}

From source file:com.example.app.profile.model.terminology.FallbackProfileTermProvider.java

@Override
public TextSource companies() {
    return isBlank(
            Optional.ofNullable(getProfileTermProvider()).map(ProfileTermProvider::companies).orElse(null))
                    ? _defaultProfileTermProvider.companies()
                    : getProfileTermProvider().companies();
}

From source file:org.openlmis.fulfillment.service.request.RequestParameters.java

/**
 * Set parameter (key argument) with the value only if the value is not null.
 *//*from   w w w .  j a v a 2 s  .c o  m*/
public RequestParameters set(String key, Collection<?> valueCollection) {
    Optional.ofNullable(valueCollection).orElse(Collections.emptyList()).forEach(elem -> set(key, elem));

    return this;
}

From source file:io.gravitee.repository.couchbase.management.CouchbaseEventRepository.java

@Override
public Optional<Event> findById(String id) throws TechnicalException {
    logger.debug("Find event by ID [{}]", id);

    EventCouchbase event = internalEventRepo.findOne(id);
    Event res = mapper.map(event, Event.class);

    logger.debug("Find event by ID [{}] - Done", id);
    return Optional.ofNullable(res);
}

From source file:io.gravitee.repository.jdbc.JdbcApiKeyRepository.java

public Optional<ApiKey> retrieve(String apiKey) throws TechnicalException {
    return Optional.ofNullable(apiKeyJpaConverter.convertTo(internalJpaApiKeyRepository.findOne(apiKey)));
}

From source file:com.kazuki43zoo.jpetstore.service.CatalogService.java

public List<Product> searchProductList(String keywords) {
    return Stream.of(Optional.ofNullable(keywords).orElse("").split("\\s+")).distinct()
            .flatMap(x -> productMapper.selectProductList(x).stream()).distinct().collect(Collectors.toList());
}

From source file:fi.helsinki.opintoni.integration.coursepage.CoursePageRestClient.java

@Cacheable(CacheConstants.COURSE_PAGE_ONE_OFF_EVENTS)
public List<CoursePageEvent> getEvents(String courseImplementationId) {
    ResponseEntity<List<CoursePageEvent>> responseEntity = restTemplate.exchange(
            "{baseUrl}/events?course_implementation_id={courseImplementationId}", HttpMethod.GET, null,
            new ParameterizedTypeReference<List<CoursePageEvent>>() {
            }, baseUrl, courseImplementationId);

    return Optional.ofNullable(responseEntity.getBody()).orElse(newArrayList());
}

From source file:com.orange.cloud.servicebroker.filter.core.filters.ServiceInstanceBindingFilterRunner.java

/**
 * Run all filters that should be processed before a service instance instance binding has been created.
 *
 * @param request details of a request to bind to a service instance binding.
 *///from   w  w  w  . j  av a  2  s  .c o m
public void preBind(CreateServiceInstanceBindingRequest request) {
    Optional.ofNullable(createServiceInstanceBindingPreFilters)
            .ifPresent(serviceBrokerFilters -> serviceBrokerFilters.forEach(filter -> filter.run(request)));
}

From source file:no.ssb.jsonstat.v2.Dimension.java

public Optional<String> getLabel() {
    // "label content should be written in lowercase except when it is a dataset label"
    return Optional.ofNullable(label).map(String::toLowerCase);
}

From source file:io.github.carlomicieli.footballdb.starter.parsers.DraftParser.java

protected Optional<Element> picksTable(Document doc) {
    return Optional.ofNullable(doc.getElementById("drafts"));
}