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.openwms.common.HttpCommonGateway.java

@Override
public Optional<Location> getLocation(String target) {
    return Optional.ofNullable(commonFeignClient.getLocation(target));
}

From source file:org.trustedanalytics.servicecatalog.service.rest.ServiceInstancesControllerHelpers.java

public void mergeInstances(Collection<Service> services, Collection<ServiceInstance> instances) {
    Map<UUID, List<ServiceInstance>> instancesIndex = createInstancesIndex(instances);
    services.stream().forEach(b -> b/*from  ww w.j  a  v  a2 s  .co m*/
            .setInstances(Optional.ofNullable(instancesIndex.get(b.getGuid())).orElse(new ArrayList<>())));
}

From source file:de.codesourcery.spring.contextrewrite.AnnotationParser.java

/**
 * Parse rewrite annotations.//  w  ww.j  a v  a  2 s  .  c o m
 * 
 * @param clazz class whose annotations should be parsed. This method will also parse parent classes and merge any rewriting annotations it encounters 
 *             according to the rules described in {@link RewriteConfig#getRules()}.
 *               
 * @return rewriting configuration
 * @throws NoSuchElementException if neither the input class nor any of its parents had a {@link ContextConfiguration} annotation.
 */
public RewriteConfig parse(Class<?> clazz) throws NoSuchElementException {
    Validate.notNull(clazz, "clazz must not be NULL");

    RewriteConfig first = null;
    RewriteConfig previous = null;
    Class<?> currentClass = clazz;
    while (currentClass != Object.class) {
        final Optional<ContextConfiguration> ctxConfiguration = Optional
                .ofNullable(currentClass.getAnnotation(ContextConfiguration.class));

        final RewriteConfig config = new RewriteConfig(currentClass);

        if (ctxConfiguration.isPresent()) {
            config.setContextPath(ctxConfiguration.get().value());
            config.setDebug(ctxConfiguration.get().debug());
            config.setDumpXML(ctxConfiguration.get().dumpRewrittenXML());
        }

        config.addRules(XMLRewrite.wrap(currentClass.getAnnotationsByType(ReplaceRule.class)));
        config.addRules(XMLRewrite.wrap(currentClass.getAnnotationsByType(RemoveRule.class)));
        config.addRules(XMLRewrite.wrap(currentClass.getAnnotationsByType(InsertElementRule.class)));
        config.addRules(XMLRewrite.wrap(currentClass.getAnnotationsByType(InsertAttributeRule.class)));

        if (ctxConfiguration.isPresent() || config.hasRules()) {
            if (previous != null) {
                previous.setParent(config);
            }
            previous = config;

            if (first == null) {
                first = config;
            }
        }
        currentClass = currentClass.getSuperclass();
    }
    if (first == null) {
        throw new NoSuchElementException("Found no @" + ContextConfiguration.class.getName() + " annotation on "
                + clazz.getName() + " or any of its super classes");
    }
    return first;
}

From source file:alfio.model.modification.AdminReservationModification.java

@JsonCreator
public AdminReservationModification(@JsonProperty("expiration") DateTimeModification expiration,
        @JsonProperty("customerData") CustomerData customerData,
        @JsonProperty("ticketsInfo") List<TicketsInfo> ticketsInfo, @JsonProperty("language") String language,
        @JsonProperty("updateContactData") boolean updateContactData,
        @JsonProperty("notification") Notification notification) {
    this.expiration = expiration;
    this.customerData = customerData;
    this.ticketsInfo = ticketsInfo;
    this.language = language;
    this.updateContactData = Optional.ofNullable(updateContactData).orElse(false);
    this.notification = notification;
}

From source file:de.is24.aws.instancemetadataserver.RemoteHostRoleNameProducer.java

private Optional<String> stripHostNr(String rawHostName) {
    Matcher matcher = Pattern.compile("^([a-zA-Z]+)[0-9]+$").matcher(rawHostName);

    if (!matcher.find()) {
        return Optional.empty();
    }/*  w  ww . j  a  va 2 s  . c  o  m*/

    return Optional.ofNullable(matcher.group(1));

}

From source file:feign.ranger.client.ServiceDiscoveryClient.java

public Optional<ServiceNode<ShardInfo>> getNode() {
    return Optional.ofNullable(serviceFinder.get(criteria));
}

From source file:fi.helsinki.opintoni.security.authorization.portfolio.PortfolioRequestResolver.java

private Optional<PortfolioDto> getPortfolioDtoById(Map<String, String> templateVariables) {
    return Optional.ofNullable(portfolioService.findById(Long.valueOf(templateVariables.get("portfolioId"))));
}

From source file:io.curly.advisor.command.ReviewHystrixCommands.java

@HystrixCommand
public Observable<Optional<Review>> findByOwner(final User user, final String id) {
    return new ObservableResult<Optional<Review>>() {
        @Override/*from w w  w  . ja v  a  2 s .  c o  m*/
        public Optional<Review> invoke() {
            return Optional.ofNullable(repository.findByIdAndOwner(id, user.getId()));
        }
    };
}

From source file:com.ikanow.aleph2.example.flume_harvester.utils.FlumeUtils.java

/** Utility to get the list of spool dirs
 * @param bucket_config/*from   w ww  .java  2 s.  c om*/
 * @return
 */
public static Collection<SpoolDirConfig> getSpoolDirs(final FlumeBucketConfigBean bucket_config) {
    final Collection<SpoolDirConfig> dirs = Optional.ofNullable(bucket_config.input())
            .map(i -> Optionals.ofNullable(i.spool_dirs())).orElse(Collections.emptyList()).stream()
            .filter(SpoolDirConfig::enabled) // (defaults to true)
            .collect(Collectors.toList());
    return dirs;
}

From source file:info.magnolia.vaadin.periscope.result.Result.java

public Optional<String> getIcon() {
    return Optional.ofNullable(icon);
}