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:com.orange.cloud.servicebroker.filter.core.filters.ServiceInstanceBindingFilterRunner.java

/**
 * Run all filters that should be processed before a service instance instance binding has been deleted.
 *
 * @param request details of a request to delete a service instance binding.
 */// w w w  . java 2  s .  c  o m
public void preUnbind(DeleteServiceInstanceBindingRequest request) {
    Optional.ofNullable(deleteServiceInstanceBindingPreFilters)
            .ifPresent(serviceBrokerFilters -> serviceBrokerFilters.forEach(filter -> filter.run(request)));
}

From source file:org.trustedanalytics.cloud.uaa.UaaClient.java

@Override
public Optional<UserIdNamePair> findUserIdByName(String userName) {
    String query = "/Users?attributes=id,userName&filter=userName eq '{name}'";
    Map<String, Object> pathVars = ImmutableMap.of("name", userName);
    UserIdNameList result = uaaRestTemplate.getForObject(uaaBaseUrl + query, UserIdNameList.class, pathVars);
    return Optional.ofNullable(Iterables.getFirst(result.getUsers(), null));
}

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

public Optional<String> getPrompt() {
    return Optional.ofNullable(getAsString("prompt"));
}

From source file:org.ow2.proactive.connector.iaas.cloud.provider.azure.vm.AzureVMsProvider.java

@Override
public Set<Instance> createInstance(Infrastructure infrastructure, Instance instance) {

    Azure azureService = azureServiceCache.getService(infrastructure);
    String instanceTag = Optional.ofNullable(instance.getTag()).orElseThrow(
            () -> new RuntimeException("ERROR missing instance tag/name from instance: '" + instance + "'"));

    // Check for Image by name first and then by id
    String imageNameOrId = Optional.ofNullable(instance.getImage()).orElseThrow(
            () -> new RuntimeException("ERROR missing Image name/id from instance: '" + instance + "'"));

    VirtualMachineCustomImage image = getImageByName(azureService, imageNameOrId)
            .orElseGet(() -> getImageById(azureService, imageNameOrId).orElseThrow(() -> new RuntimeException(
                    "ERROR unable to find custom Image: '" + instance.getImage() + "'")));

    // Get the options (Optional by design)
    Optional<Options> options = Optional.ofNullable(instance.getOptions());

    // Try to retrieve the resourceGroup from provided name, otherwise get it from image
    ResourceGroup resourceGroup = azureProviderUtils
            .searchResourceGroupByName(azureService,
                    options.map(Options::getResourceGroup).orElseGet(image::resourceGroupName))
            .orElseThrow(() -> new RuntimeException(
                    "ERROR unable to find a suitable resourceGroup from instance: '" + instance + "'"));

    // Try to get region from provided name, otherwise get it from image
    Region region = options.map(presentOptions -> Region.findByLabelOrName(presentOptions.getRegion()))
            .orElseGet(image::region);/*from w  w w  .j a v a2 s.com*/

    // Prepare the VM(s)
    Optional<Boolean> optionalStaticPublicIP = options.map(Options::getStaticPublicIP);
    List<Creatable<VirtualMachine>> creatableVirtualMachines = prepareCreatableVirtualMachines(azureService,
            options, region, resourceGroup, instanceTag, instance, image, optionalStaticPublicIP);

    // Create all VMs in parallel and collect IDs
    return azureService.virtualMachines().create(creatableVirtualMachines).values().stream()
            .map(vm -> instance.withTag(vm.name()).withId(vm.vmId()).withNumber(SINGLE_INSTANCE_NUMBER))
            .collect(Collectors.toSet());
}

From source file:com.cognifide.qa.bb.aem.ui.DialogFieldProvider.java

/**
 * Looks for DialogField annotation, reads locator data from the annotation instance
 * and asks AemDialogFieldResolver to produce a dialog field instance for the class field.
 *///  w  ww  . ja v a  2  s  .  c  o m
@Override
public Optional<Object> provideValue(Object pageObject, Field field, PageObjectContext context) {
    AemDialogFieldResolver aemDialogFieldResolver = fieldResolverProvider.get();
    DialogField dialogFieldAnnotation = field.getAnnotation(DialogField.class);

    String searchBy;
    Class<?> type = field.getType();
    Object dialogField = null;
    if (StringUtils.isNotEmpty(dialogFieldAnnotation.label())) {
        searchBy = dialogFieldAnnotation.label();
        dialogField = aemDialogFieldResolver.getField(searchBy, type);
    } else if (StringUtils.isNotEmpty(dialogFieldAnnotation.css())) {
        searchBy = dialogFieldAnnotation.css();
        dialogField = aemDialogFieldResolver.getFieldByCss(searchBy, type);
    } else if (StringUtils.isNotEmpty(dialogFieldAnnotation.name())) {
        searchBy = dialogFieldAnnotation.name();
        dialogField = aemDialogFieldResolver.getFieldByName(searchBy, type);
    } else if (StringUtils.isNotEmpty(dialogFieldAnnotation.xpath())) {
        searchBy = dialogFieldAnnotation.xpath();
        dialogField = aemDialogFieldResolver.getFieldByXpath(searchBy, type);
    }
    return Optional.ofNullable(dialogField);
}

From source file:alfio.controller.api.admin.CheckInApiController.java

@RequestMapping(value = "/check-in/event/{eventName}/ticket/{ticketIdentifier}", method = GET)
public TicketAndCheckInResult findTicketWithUUID(@PathVariable("eventName") String eventName,
        @PathVariable("ticketIdentifier") String ticketIdentifier, @RequestParam("qrCode") String qrCode) {
    return checkInManager.evaluateTicketStatus(eventName, ticketIdentifier, Optional.ofNullable(qrCode));
}

From source file:curly.artifact.ArtifactServiceImpl.java

@Loggable
@Override//from   ww  w .  ja  v a2 s  .  co  m
@HystrixCommand(fallbackMethod = "defaultFindOne")
public Observable<Optional<Artifact>> findOne(String id) {
    log.trace("Finding for {}", id);
    return new ObservableResult<Optional<Artifact>>() {
        @Override
        public Optional<Artifact> invoke() {
            return Optional.ofNullable(repository.findOne(id));
        }
    };
}

From source file:com.example.app.profile.ui.user.UserPositionValueEditor.java

@Nullable
@Override/*www  .ja v  a 2  s . co  m*/
public UserPosition commitValue() throws MIWTException {
    UserPosition result = Optional.ofNullable(super.commitValue())
            .orElseThrow(() -> new IllegalStateException("UserPosition was null.  This should not happen."));
    result.setUser(getUser());
    return result;
}

From source file:com.ibm.watson.catalyst.jumpqa.matcher.EntryPatterns.java

/**
 * Instantiates a new StringRegexMatcher
 * @param aTitlePattern the pattern to check the PAU Title for
 * @param aAnswerPattern the pattern to check the answer for
 * @param aTextPattern the pattern to check the candidate for
 * // w  ww  .j a  v  a2 s . c o m
 */
public EntryPatterns(final Pattern aTitlePattern, final Pattern aAnswerPattern, final Pattern aTextPattern) {
    _titlePattern = Optional.ofNullable(aTitlePattern);
    _answerPattern = Optional.ofNullable(aAnswerPattern);
    _textPattern = Optional.ofNullable(aTextPattern);
}