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.ScienceDirect.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 {//from w w w. j a  va 2  s.c  o  m
            String sciLink = getUrlByDoi(doi.get().getDOI());

            if (!sciLink.isEmpty()) {
                // Retrieve PDF link
                Document html = Jsoup.connect(sciLink).ignoreHttpErrors(true).get();
                Element link = html.getElementById("pdfLink");

                if (link != null) {
                    LOGGER.info("Fulltext PDF found @ ScienceDirect.");
                    pdfLink = Optional.of(new URL(link.attr("pdfurl")));
                }
            }
        } catch (UnirestException e) {
            LOGGER.warn("ScienceDirect API request failed", e);
        }
    }
    return pdfLink;
}

From source file:io.kamax.mxisd.lookup.provider.ForwarderProvider.java

@Override
public Optional<SingleLookupReply> find(SingleLookupRequest request) {
    for (String label : cfg.getServers()) {
        for (String srv : mxCfg.getIdentity().getServers(label)) {
            log.info("Using forward server {}", srv);
            Optional<SingleLookupReply> answer = fetcher.find(srv, request);
            if (answer.isPresent()) {
                return answer;
            }//from  w  w w .j  a v  a 2  s  .c om
        }
    }

    return Optional.empty();
}

From source file:org.obiba.mica.micaConfig.rest.DataAccessResource.java

@GET
@Path("/form")
@Timed//from w ww . java  2s  .  com
public Mica.DataAccessFormDto getDataAccessForm(@QueryParam("lang") String lang) {
    Optional<DataAccessForm> d = dataAccessFormService.find();

    if (!d.isPresent())
        throw NoSuchDataAccessFormException.withDefaultMessage();

    DataAccessForm dataAccessForm = d.get();
    Mica.DataAccessFormDto.Builder builder = Mica.DataAccessFormDto.newBuilder(dtos.asDto(dataAccessForm))
            .clearProperties().clearPdfTemplates();

    String langTag = !Strings.isNullOrEmpty(lang) ? Locale.forLanguageTag(lang).toLanguageTag()
            : LanguageTag.UNDETERMINED;

    Map<String, LocalizedString> properties = dataAccessForm.getProperties().entrySet().stream()
            .map(e -> Maps.immutableEntry(e.getKey(),
                    new LocalizedString().forLanguageTag(langTag, e.getValue().get(langTag))))
            .collect(toMap(Map.Entry::getKey, Map.Entry::getValue));

    builder.addAllProperties(dtos.asDtoList(properties));

    return builder.build();
}

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

public void addFriend(final String username, final String friendUsername) {
    notBlank(username);//from w w w.java 2s. co  m
    notBlank(friendUsername);

    final Optional<User> user = getUser(username);
    final Optional<User> friend = getUser(friendUsername);

    if (user.isPresent() && friend.isPresent()) {
        userRepository.addFriend(user.get().username, friend.get().username);
    }
}

From source file:io.github.retz.db.Jobs.java

public void doRetry(List<Integer> ids) {
    try {/*w w  w  .j a v  a 2  s . co  m*/
        for (int id : ids) {
            Optional<Job> maybeJob = getJob(id);
            if (maybeJob.isPresent()) {
                Job job = maybeJob.get();
                job.doRetry();
                updateJob(job);
            }
        }
    } catch (SQLException e) {
        LOG.error(e.toString());
    } catch (IOException e) {
        LOG.error(e.toString()); // TODO: do we fail?
    }
}

From source file:alfio.manager.EventNameManager.java

/**
 * Generates and returns a short name based on the given display name.<br>
 * The generated short name will be returned only if it was not already used.<br>
 * The input parameter will be clean from "evil" characters such as punctuation and accents
 *
 * 1) if the {@code displayName} is a one-word name, then no further calculation will be done and it will be returned as it is, to lower case
 * 2) the {@code displayName} will be split by word and transformed to lower case. If the total length is less than 15, then it will be joined using "-" and returned
 * 3) the first letter of each word will be taken, excluding numbers
 * 4) a random code will be returned//  www  .j av a  2  s.  c om
 *
 * @param displayName
 * @return
 */
public String generateShortName(String displayName) {
    Validate.isTrue(StringUtils.isNotBlank(displayName));
    String cleanDisplayName = StringUtils.stripAccents(StringUtils.normalizeSpace(displayName))
            .toLowerCase(Locale.ENGLISH).replaceAll(FIND_EVIL_CHARACTERS, "-");
    if (!StringUtils.containsWhitespace(cleanDisplayName) && isUnique(cleanDisplayName)) {
        return cleanDisplayName;
    }
    Optional<String> dashedName = getDashedName(cleanDisplayName);
    if (dashedName.isPresent()) {
        return dashedName.get();
    }
    Optional<String> croppedName = getCroppedName(cleanDisplayName);
    if (croppedName.isPresent()) {
        return croppedName.get();
    }
    return generateRandomName();
}

From source file:com.fredhopper.core.connector.index.generate.validator.ListAttributeValidator.java

@Override
protected boolean hasValidValueId(final FhAttributeData attribute, final List<Violation> violations) {
    final Table<Optional<String>, Optional<Locale>, String> values = attribute.getValues();
    for (final Optional<String> optional : values.rowKeySet()) {
        final String key = optional == null || !optional.isPresent() ? "_absent_" : optional.get();
        if (!key.matches(VALUE_ID_PATTERN)) {
            rejectValue(attribute, violations, "The \"list\" attribute valueId key \"" + key
                    + "\" does not match the appropriate pattern.");
            return false;
        }//from  w  w  w  . j  ava  2s  . co m
    }
    return true;
}

From source file:org.camunda.bpm.spring.boot.starter.configuration.impl.custom.EnterLicenseKeyConfiguration.java

@Override
public void postProcessEngineBuild(ProcessEngine processEngine) {
    if (!version.isEnterprise()) {
        return;// www.  j  a v a2s  . co  m
    }

    URL fileUrl = camundaBpmProperties.getLicenseFile();

    Optional<String> licenseKey = readLicenseKeyFromUrl(fileUrl);
    if (!licenseKey.isPresent()) {
        fileUrl = EnterLicenseKeyConfiguration.class.getClassLoader().getResource(defaultLicenseFile);
        licenseKey = readLicenseKeyFromUrl(fileUrl);
    }

    if (!licenseKey.isPresent()) {
        return;
    }

    try (Connection connection = dataSource(processEngine).getConnection()) {
        if (readLicenseKeyFromDatasource(connection).isPresent()) {
            return;
        }
        try (PreparedStatement statement = connection.prepareStatement(getSql(INSERT_SQL))) {
            statement.setString(1, licenseKey.get());
            statement.execute();
            LOG.enterLicenseKey(fileUrl);
        }
    } catch (SQLException ex) {
        throw new CamundaBpmNestedRuntimeException(ex.getMessage(), ex);
    }
}

From source file:com.spotify.styx.api.StyxConfigResource.java

private Response<StyxConfig> patchStyxConfig(Request request) {
    final Optional<String> enabledParameter = request.parameter("enabled");
    if (!enabledParameter.isPresent()) {
        return Response.forStatus(Status.BAD_REQUEST.withReasonPhrase("Missing 'enabled' query parameter"));
    }//w  w w . j a va 2s.co  m

    final boolean enabled = Boolean.parseBoolean(enabledParameter.get());

    try {
        storage.setGlobalEnabled(enabled);
    } catch (IOException e) {
        throw Throwables.propagate(e);
    }

    return Response.forPayload(StyxConfig.create(enabled));
}

From source file:com.fredhopper.core.connector.index.generate.validator.SetAttributeValidator.java

@Override
protected boolean hasValidValueId(final FhAttributeData attribute, final List<Violation> violations) {
    final Table<Optional<String>, Optional<Locale>, String> values = attribute.getValues();
    for (final Optional<String> optional : values.rowKeySet()) {
        final String key = optional == null || !optional.isPresent() ? "_absent_" : optional.get();
        if (!key.matches(VALUE_ID_PATTERN)) {
            rejectValue(attribute, violations, "The \"set\" attribute valueId key \"" + key
                    + "\" does not match the appropriate pattern.");
            return false;
        }/*from   w  ww  .  j av a  2 s .com*/
    }
    return true;
}