Example usage for java.util Optional isPresent

Introduction

In this page you can find the example usage for java.util Optional isPresent.

Prototype

public boolean isPresent()

Source Link

Document

If a value is present, returns true , otherwise false .

Usage

From source file:net.sf.jabref.logic.fetcher.SpringerLink.java

@Override
public Optional<URL> findFullText(BibEntry entry) throws IOException {
    Objects.requireNonNull(entry);
    Optional<URL> pdfLink = Optional.empty();

    // Try unique DOI first
    Optional<DOI> doi = DOI.build(entry.getField("doi"));

    if (doi.isPresent()) {
        // Available in catalog?
        try {/*w  w w. j a v  a  2s. c  om*/
            HttpResponse<JsonNode> jsonResponse = Unirest.get(API_URL).queryString("api_key", API_KEY)
                    .queryString("q", String.format("doi:%s", doi.get().getDOI())).asJson();

            JSONObject json = jsonResponse.getBody().getObject();
            int results = json.getJSONArray("result").getJSONObject(0).getInt("total");

            if (results > 0) {
                LOGGER.info("Fulltext PDF found @ Springer.");
                pdfLink = Optional.of(new URL("http", CONTENT_HOST,
                        String.format("/content/pdf/%s.pdf", doi.get().getDOI())));
            }
        } catch (UnirestException e) {
            LOGGER.warn("SpringerLink API request failed", e);
        }
    }
    return pdfLink;
}

From source file:com.formkiq.core.form.bean.CustomConvertUtilsBean.java

@SuppressWarnings({ "unchecked", "rawtypes" })
@Override/*from w ww.  j av  a2 s . c  om*/
public Object convert(final String value, final Class clazz) {
    if (clazz.isEnum()) {

        String val = Strings.extractLabelAndValue(value).getRight();
        try {
            Method method = clazz.getMethod("find", String.class);
            Object result = method.invoke(method, val);
            if (result instanceof Optional) {
                Optional<Object> op = (Optional<Object>) result;
                if (op.isPresent()) {
                    return op.get();
                }
            }
        } catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException
                | InvocationTargetException e) {
            // ignore error
        }

        return Enum.valueOf(clazz, val);
    }

    return super.convert(value, clazz);
}

From source file:bg.vitkinov.edu.services.JokeCategoryService.java

@RequestMapping(method = { RequestMethod.POST, RequestMethod.PUT })
public ResponseEntity<?> insert(@RequestParam String name, @RequestParam String keywords) {
    Optional<Category> category = repository.findByName(name);
    if (category.isPresent()) {
        return new ResponseEntity<>(category.get(), HttpStatus.CONFLICT);
    }/*w w  w. j a  v  a  2  s.  c o m*/
    Category newCateogry = new Category();
    newCateogry.setName(name);
    newCateogry.setKeyWords(getKewWors(keywords));
    return new ResponseEntity<>(repository.save(newCateogry), HttpStatus.CREATED);
}

From source file:ddf.security.impl.SubjectIdentityImpl.java

/**
 * Get a subject's unique identifier. 1. If the configured unique identifier if present 2. Email
 * address if present 3. Username not, user name is returned.
 *
 * @param subject//  ww w .  j  av a2  s .  c om
 * @return subject unique identifier
 */
@Override
public String getUniqueIdentifier(Subject subject) {
    Optional<String> owner = getSubjectAttribute(subject).stream().findFirst();
    if (owner.isPresent()) {
        return owner.get();
    }

    String identifier = SubjectUtils.getEmailAddress(subject);
    if (StringUtils.isNotBlank(identifier)) {
        return identifier;
    }

    return SubjectUtils.getName(subject);
}

From source file:com.macrossx.wechat.impl.WechatUserHelper.java

public Optional<WechatUserGet> userGet(String nextOpenid) {
    try {/*w w w  . j a  v a  2s. co m*/
        Optional<WechatAccessToken> token = helper.getAccessToken();
        if (token.isPresent()) {
            WechatAccessToken accessToken = token.get();
            HttpGet httpGet = new HttpGet();

            httpGet.setURI(new URI(MessageFormat.format(WechatConstants.USER_GET_URL,
                    accessToken.getAccess_token(), nextOpenid == null ? "" : nextOpenid)));
            return new WechatHttpClient().send(httpGet, WechatUserGet.class);
        }
    } catch (URISyntaxException e) {
        // TODO Auto-generated catch block
        log.info(e.getMessage());
    }
    return Optional.empty();
}

From source file:com.macrossx.wechat.impl.WechatUserHelper.java

public Optional<WechatUserInfo> userInfo(String openid) {
    try {//from w w  w .  j  a v  a2s  .c  om
        Optional<WechatAccessToken> token = helper.getAccessToken();
        if (token.isPresent()) {
            WechatAccessToken accessToken = token.get();
            HttpGet httpGet = new HttpGet();

            httpGet.setURI(new URI(MessageFormat.format(WechatConstants.USER_INFO_URL,
                    accessToken.getAccess_token(), openid)));
            return new WechatHttpClient().send(httpGet, WechatUserInfo.class);
        }
    } catch (URISyntaxException e) {
        // TODO Auto-generated catch block
        log.info(e.getMessage());
    }
    return Optional.empty();
}

From source file:com.teradata.benchto.service.EnvironmentService.java

@Retryable(value = { TransientDataAccessException.class, DataIntegrityViolationException.class })
@Transactional//from   ww  w .  jav  a2  s . co  m
public void storeEnvironment(String name, Map<String, String> attributes) {
    Optional<Environment> environmentOptional = tryFindEnvironment(name);
    if (!environmentOptional.isPresent()) {
        Environment environment = new Environment();
        environment.setName(name);
        environment.setAttributes(attributes);
        environment.setStarted(currentDateTime());
        environmentOptional = Optional.of(environmentRepo.save(environment));
    } else {
        environmentOptional.get().setAttributes(attributes);
    }
    LOG.debug("Starting environment - {}", environmentOptional.get());
}

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

private Optional<String> getHostBaseUrl() {
    Optional<String> optionalBaseUrl = getHostBaseUrlFromPrincipal();
    if (!optionalBaseUrl.isPresent()) {
        optionalBaseUrl = getHostBaseUrlFromQueryParameters();
    }//from  ww w. j  a  v  a  2s  . c  o  m
    return optionalBaseUrl;
}

From source file:se.omegapoint.facepalm.application.UserService.java

public Result<UserSuccess, UserFailure> registerUser(final String username, final String email,
        final String firstname, final String lastname, final String password) {
    notBlank(username);//from   www  .  j  a v  a  2  s.com
    notBlank(email);
    notBlank(firstname);
    notBlank(lastname);
    notBlank(password);

    final NewUserCredentials credentials = new NewUserCredentials(username, email, firstname, lastname,
            password);
    final Optional<User> user = getUser(credentials.username);

    if (user.isPresent()) {
        return Result.failure(USER_ALREADY_EXISTS);
    }

    userRepository.addUser(credentials);
    return Result.success(USER_REGISTERD);
}

From source file:com.bodybuilding.argos.controller.TurbineStreamController.java

@RequestMapping("/turbine-stream/{cluster}")
public ResponseEntity<SseEmitter> streamHystrix(@PathVariable("cluster") String cluster) {
    Optional<HystrixClusterMonitor> clusterMonitor = clusterRegistry.getCluster(cluster);
    if (!clusterMonitor.isPresent()) {
        return new ResponseEntity<>(HttpStatus.NOT_FOUND);
    }/*from  w  w w.jav a2  s .co m*/

    final SseEmitter emitter = new SseEmitter(TimeUnit.DAYS.toMillis(45));

    SseEmitterUtil.bindObservable(emitter,
            clusterMonitor.get().observeJson().takeUntil(shutdown).subscribeOn(Schedulers.io()));

    return ResponseEntity.ok(emitter);
}