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.github.dmyersturnbull.transformations.ExtendedCommandLine.java

@Nonnull
public Optional<String> get(char opt) {
    return Optional.ofNullable(m_commandLine.getOptionValue(opt));
}

From source file:org.lendingclub.mercator.aws.SQSScanner.java

@Override
public Optional<String> computeArn(JsonNode n) {
    return Optional.ofNullable(n.path("aws_queueArn").asText(null));
}

From source file:org.ow2.proactive.connector.iaas.cloud.TagManager.java

@Autowired
public TagManager(@Value("${connector-iaas-tag.key}") String connectorIaasTagKey,
        @Value("${connector-iaas-tag.value}") String connectorIaasTagValue) {
    connectorIaasTag = Tag.builder()/*  ww  w. j a  v  a  2s.co  m*/
            .key(Optional.ofNullable(connectorIaasTagKey).orElse(DEFAULT_CONNECTOR_IAAS_TAG_KEY))
            .value(Optional.ofNullable(connectorIaasTagValue).orElse(DEFAULT_CONNECTOR_IAAS_TAG_VALUE)).build();
}

From source file:com.arpnetworking.configuration.jackson.BaseJacksonConfiguration.java

/**
 * {@inheritDoc}/*from  w w w  .j  a va 2s  . co m*/
 */
@Override
public Optional<String> getProperty(final String name) {
    final Optional<JsonNode> jsonNode = getJsonSource().getValue(name.split("\\."));
    if (jsonNode.isPresent()) {
        return Optional.ofNullable(jsonNode.get().asText());
    }
    return Optional.empty();
}

From source file:org.ow2.proactive.connector.iaas.service.InstanceService.java

public Set<Instance> createInstance(String infrastructureId, Instance instance) {

    Optional<Infrastructure> optionalInfrastructure = Optional
            .ofNullable(infrastructureService.getInfrastructure(infrastructureId));

    Set<Instance> instancesCreated = optionalInfrastructure
            .map(infrastructure -> cloudManager.createInstance(infrastructure, instance))
            .orElseThrow(() -> new NotFoundException(
                    "infrastructure id : " + infrastructureId + " does not exists"));

    optionalInfrastructure.ifPresent(/*from www  .  jav a 2 s .  c  om*/
            infrastructure -> instanceCache.registerInfrastructureInstances(infrastructure, instancesCreated));

    return instancesCreated;
}

From source file:org.openwms.common.location.LocationGroupServiceImpl.java

/**
 * {@inheritDoc}/*from  w w w. ja  v  a 2 s .  co  m*/
 */
@Override
public Optional<LocationGroup> findByName(String name) {
    return Optional.ofNullable(locationGroupRepository.findByName(name));
}

From source file:com.atlassian.connect.spring.internal.AtlassianConnectContextModelAttributeProvider.java

private Optional<String> getHostBaseUrlFromPrincipal() {
    return Optional.ofNullable(SecurityContextHolder.getContext().getAuthentication())
            .map(Authentication::getPrincipal).filter(AtlassianHostUser.class::isInstance)
            .map(AtlassianHostUser.class::cast).map(AtlassianHostUser::getHost).map(AtlassianHost::getBaseUrl);
}

From source file:com.example.StateMachineConfiguration.java

@Override
public void configure(final StateMachineConfigurationConfigurer<IssueStates, UserAction> config)
        throws Exception {
    config.withConfiguration().autoStartup(true)
            .listener(new StateMachineListenerAdapter<IssueStates, UserAction>() {
                @Override//from w w w  . j  a va2 s .  com
                public void stateChanged(final State<IssueStates, UserAction> from,
                        final State<IssueStates, UserAction> to) {
                    final Optional<IssueStates> beforeState = Optional.ofNullable(from).map(State::getId);
                    final Optional<IssueStates> afterState = Optional.ofNullable(to).map(State::getId);
                    log.info("state change from: {}, to: {}", beforeState, afterState);
                }
            });
}

From source file:io.gravitee.repository.mongodb.management.MongoUserRepository.java

@Override
public Optional<User> findByUsername(String username) throws TechnicalException {
    logger.debug("Find user by name user [{}]", username);

    UserMongo user = internalUserRepo.findOne(username);
    User res = mapper.map(user, User.class);

    logger.debug("Find user by name user [{}] - Done", username);
    return Optional.ofNullable(res);
}