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:fi.helsinki.opintoni.web.controller.RedirectController.java

private String getRedirectPath(String configurationParam, String defaultRedirect) {
    return Optional.ofNullable(appConfiguration.get(configurationParam)).filter(p -> p.length() > 0)
            .orElseGet(() -> defaultRedirect);
}

From source file:io.mapzone.arena.csw.catalog.CswMetadataBase.java

@Override
public Optional<String> getType() {
    return Optional.ofNullable(record().type);
}

From source file:com.culturedear.chord.ChordAnalyzerController.java

@RequestMapping("/analyze")
public ResponseEntity<Object> identifyChordByNotes(@RequestParam(value = "notes") String notes) {
    Chord jfugueChord = null;/* w  w  w .  j a  v  a  2  s .c om*/
    musicChord = null;
    try {
        jfugueChord = Chord.fromNotes(notes);
        musicChord = new MusicChord(Note.getToneStringWithoutOctave(jfugueChord.getRoot().getValue()),
                jfugueChord.getChordType().toLowerCase(),
                Note.getToneStringWithoutOctave(jfugueChord.getBassNote().getValue()),
                jfugueChord.getInversion(), jfugueChord.isMajor(), jfugueChord.isMinor(),
                jfugueChord.toString());
    } catch (Exception e) {
        System.out.println("Exception encountered in ChordAnalyzerController#identifyChordByNotes: " + e);
    }
    return Optional.ofNullable(musicChord).map(mc -> new ResponseEntity<>((Object) mc, HttpStatus.OK))
            .orElse(new ResponseEntity<>("Could not analyze the chord", HttpStatus.INTERNAL_SERVER_ERROR));

}

From source file:com.lithium.flow.shell.sshj.SshjExec.java

@Override
@Nonnull//  w  w w  .  j  ava  2s. c  o m
public Optional<Integer> exit() throws IOException {
    out().count();
    err().count();
    Integer status = command.getExitStatus();
    close();
    return Optional.ofNullable(status);
}

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

private Optional<Element> gamesTable(Document doc) {
    return Optional.ofNullable(doc.getElementById("games"));
}

From source file:com.greglturnquist.HomeController.java

private static String currentUser(Object auth) {
    return Optional.ofNullable(auth).map(authentication -> authentication.toString()).orElse("Unknown user");
}

From source file:enmasse.controller.flavor.FlavorManager.java

@Override
public Optional<Flavor> getFlavor(String flavorName) {
    return Optional.ofNullable(flavorMap.get(flavorName));
}

From source file:com.epam.ta.reportportal.demo_data.DemoDataService.java

DemoDataRs generate(DemoDataRq rq, String projectName, String user) {
    DemoDataRs demoDataRs = new DemoDataRs();
    Project project = projectRepository.findOne(projectName);
    StatisticsCalculationStrategy statsStrategy = Optional
            .ofNullable(project.getConfiguration().getStatisticsCalculationStrategy())
            .orElse(StatisticsCalculationStrategy.STEP_BASED);
    BusinessRule.expect(project, Predicates.notNull()).verify(ErrorType.PROJECT_NOT_FOUND, projectName);
    final List<String> launches = demoLaunchesService.generateDemoLaunches(rq, user, projectName,
            statsStrategy);//w w  w. j  av  a 2  s  .c o m
    demoDataRs.setLaunches(launches);
    if (rq.isCreateDashboard()) {
        Dashboard demoDashboard = demoDashboardsService.generate(rq, user, projectName);
        demoDataRs.setDashboards(Collections.singletonList(demoDashboard.getId()));
    }
    return demoDataRs;
}

From source file:com.netflix.genie.common.internal.dto.v4.CommonRequestImpl.java

/**
 * {@inheritDoc}
 */
@Override
public Optional<String> getRequestedId() {
    return Optional.ofNullable(this.requestedId);
}

From source file:com.devicehive.websockets.handlers.DeviceHandlers.java

@PreAuthorize("isAuthenticated()")
public WebSocketResponse processDeviceGet(JsonObject request) {
    final String deviceId = Optional.ofNullable(request.get(Constants.DEVICE_ID)).map(JsonElement::getAsString)
            .orElse(null);//from w  ww .jav  a 2  s .c o  m
    HivePrincipal principal = (HivePrincipal) SecurityContextHolder.getContext().getAuthentication()
            .getPrincipal();
    WebSocketResponse response = new WebSocketResponse();

    if (deviceId != null) {
        DeviceVO toResponse = deviceService.findByGuidWithPermissionsCheck(deviceId, principal);
        response.addValue(Constants.DEVICE, toResponse, DEVICE_PUBLISHED);
        return response;
    } else {
        for (String device : principal.getDeviceGuids()) {
            DeviceVO toResponse = deviceService.findByGuidWithPermissionsCheck(device, principal);
            response.addValue(Constants.DEVICE, toResponse, DEVICE_PUBLISHED);
        }
        return response;
    }
}