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:io.syndesis.model.connection.Action.java

@JsonProperty(access = JsonProperty.Access.READ_ONLY)
default Optional<DataShape> getOutputDataShape() {
    return Optional.ofNullable(getDefinition()).flatMap(ActionDefinition::getOutputDataShape);
}

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

public Optional<User> findByUsername(String username) throws TechnicalException {
    return Optional.ofNullable(userJpaConverter.convertTo(internalJpaUserRepository.findOne(username)));
}

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

@Override
public Optional<Api> findById(String apiId) throws TechnicalException {
    ApiMongo apiMongo = internalApiRepo.findOne(apiId);
    return Optional.ofNullable(mapApi(apiMongo));
}

From source file:com.github.ljtfreitas.restify.http.spring.contract.metadata.reflection.SpringWebJavaMethodMetadata.java

public SpringWebJavaMethodMetadata(Method javaMethod) {
    this.javaMethod = javaMethod;

    RequestMapping mapping = Optional
            .ofNullable(AnnotatedElementUtils.findMergedAnnotation(javaMethod, RequestMapping.class))
            .orElseThrow(() -> new IllegalArgumentException(
                    "Method [" + javaMethod + "] does not have a @RequestMapping annotation."));

    isTrue(mapping.value().length <= 1, "Only single path is allowed.");
    isTrue(mapping.method().length == 1,
            "You must set the HTTP method (only one!) of your Java method [" + javaMethod + "].");

    this.mapping = new SpringWebRequestMappingMetadata(mapping);
}

From source file:com.github.ljtfreitas.restify.spring.configure.RestifyableType.java

private String doName() {
    return Optional.ofNullable(restifyable.name()).filter(n -> !n.isEmpty())
            .orElseGet(() -> objectType.getSimpleName());
}

From source file:com.todo.backend.web.rest.UserApi.java

@RequestMapping(value = "/user/{id}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
@Timed// www .j  a va  2  s  . c o  m
@Transactional(readOnly = true)
@PreAuthorize("hasAuthority('ADMIN')")
public ResponseEntity<ReadUserResponse> readUser(@PathVariable Long id) {
    log.debug("GET /user/{}", id);
    final Optional<User> result = Optional.ofNullable(userRepository.findOne(id));
    if (result.isPresent()) {
        return ResponseEntity.ok().body(convertToReadUserResponse(result.get()));
    }
    return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}

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

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

    EventMongo event = internalEventRepo.findOne(id);
    Event res = mapEvent(event);//from  w w  w .java 2 s.co m

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

From source file:io.knotx.knot.action.domain.FormEntity.java

private static Optional<String> getFormIdentifierFromRequest(KnotContext knotContext, String formIdAttrName) {
    return Optional.ofNullable(knotContext.getClientRequest().getFormAttributes().get(formIdAttrName));
}

From source file:spring.travel.site.model.user.User.java

@JsonIgnore
public Optional<Address> getAddress() {
    return Optional.ofNullable(a);
}

From source file:com.culturedear.counterpoint.XmlRestController.java

@RequestMapping(method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_XML_VALUE)
public ResponseEntity<Object> write(@RequestBody CounterpointModel counterpointModel) {

    // prepare response XML out
    CounterpointGenerator cg = new CounterpointGenerator();
    cg.fillRhyPat();//from w  w w .j  a  va 2 s. c om
    int[] cf = counterpointModel.getMainMelody();
    cg.setCantusFirmus(cf);
    int[] vbs = counterpointModel.getPartsInitialNotes();

    CounterpointSolution counterpointSolution = cg.anySpecies(counterpointModel.getScaleMode(), vbs, cf.length,
            counterpointModel.getCounterpointSpecies(), counterpointModel.getRulePenalties());

    ScorePartwise scorePartwise = null;

    try {
        scorePartwise = counterpointSolution.toScorePartwise();
    } catch (NullPointerException ex) {
        scorePartwise = null;
    }

    return Optional.ofNullable(scorePartwise).map(cm -> new ResponseEntity<>((Object) cm, HttpStatus.OK))
            .orElse(new ResponseEntity<>("Could not compute the counterpoint.",
                    HttpStatus.INTERNAL_SERVER_ERROR));
}