Example usage for com.google.common.base Strings emptyToNull

List of usage examples for com.google.common.base Strings emptyToNull

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Introduction

In this page you can find the example usage for com.google.common.base Strings emptyToNull.

Prototype

@Nullable
public static String emptyToNull(@Nullable String string)

Source Link

Document

Returns the given string if it is nonempty; null otherwise.

Usage

From source file:org.mayocat.multitenancy.DefaultTenantResolver.java

private String extractSlugFromHost(String host) {
    String rootDomain;/*  w  ww .  ja v a  2 s  .  c o m*/
    String siteName = siteSettings.getWebDomainName().or(siteSettings.getDomainName());
    if (Strings.emptyToNull(siteName) == null) {
        InternetDomainName domainName = InternetDomainName.from(host);
        if (domainName.hasPublicSuffix()) {
            // Domain is under a valid TLD, extract the TLD + first child
            rootDomain = domainName.topPrivateDomain().name();
        } else if (host.indexOf(".") > 0 && host.indexOf(".") < host.length()) {
            // Otherwise, best guess : strip everything before the first dot.
            rootDomain = host.substring(host.indexOf(".") + 1);
        } else {
            rootDomain = host;
        }
    } else {
        rootDomain = StringUtils.substringBefore(siteSettings.getDomainName(), ":");
    }
    if (host.indexOf("." + rootDomain) > 0) {
        return host.substring(0, host.indexOf("." + rootDomain));
    } else {
        return host;
    }
}

From source file:com.reprezen.swagedit.json.references.JsonReferenceFactory.java

protected JsonReference doCreate(String value, Object source) {
    String notNull = Strings.nullToEmpty(value);

    URI uri;//from  w  ww .  j  av  a  2  s.  c  o m
    try {
        uri = URI.create(notNull);
    } catch (NullPointerException | IllegalArgumentException e) {
        // try to encode illegal characters, e.g. curly braces
        try {
            uri = URI.create(URLUtils.encodeURL(notNull));
        } catch (NullPointerException | IllegalArgumentException e2) {
            return new JsonReference(null, null, false, false, false, source);
        }
    }

    String fragment = uri.getFragment();
    JsonPointer pointer = null;
    try {
        pointer = JsonPointer.compile(Strings.emptyToNull(fragment));
    } catch (IllegalArgumentException e) {
        // let the pointer be null
    }

    uri = uri.normalize();
    boolean absolute = uri.isAbsolute();
    boolean local = !absolute && uri.getPath().isEmpty();
    // should warn when using curly braces
    boolean warnings = notNull.contains("{") || uri.toString().contains("}");

    return new JsonReference(uri, pointer, absolute, local, warnings, source);
}

From source file:de.schildbach.pte.ZvvProvider.java

@Override
protected Line parseLineAndType(final String lineAndType) {
    final Matcher m = P_NORMALIZE_LINE_AND_TYPE.matcher(lineAndType);
    if (m.matches()) {
        final String number = Strings.emptyToNull(m.group(1).replaceAll("\\s+", ""));
        final String type = Strings.emptyToNull(m.group(2));

        if ("Bus".equals(type))
            return newLine(Product.BUS, stripPrefix(number, "Bus"), null);
        if ("Bus-NF".equals(type))
            return newLine(Product.BUS, stripPrefix(number, "Bus", "Bus-NF"), null,
                    Line.Attr.WHEEL_CHAIR_ACCESS);
        if ("Tro".equals(type) || "Trolley".equals(type))
            return newLine(Product.BUS, stripPrefix(number, "Tro"), null);
        if ("Tro-NF".equals(type))
            return newLine(Product.BUS, stripPrefix(number, "Tro", "Tro-NF"), null,
                    Line.Attr.WHEEL_CHAIR_ACCESS);
        if ("Trm".equals(type))
            return newLine(Product.TRAM, stripPrefix(number, "Trm"), null);
        if ("Trm-NF".equals(type))
            return newLine(Product.TRAM, stripPrefix(number, "Trm", "Trm-NF"), null,
                    Line.Attr.WHEEL_CHAIR_ACCESS);

        if ("S18".equals(number))
            return newLine(Product.SUBURBAN_TRAIN, "S18", null);

        if (number != null && P_NUMBER.matcher(number).matches())
            return newLine(null, number, null);

        if (type != null) {
            final Product product = normalizeType(type);
            if (product != null)
                return newLine(product, number, null);
        }/*from  www . j a  v  a 2  s.c o  m*/

        throw new IllegalStateException(
                "cannot normalize type " + type + " number " + number + " line#type " + lineAndType);
    }

    throw new IllegalStateException("cannot normalize line#type " + lineAndType);
}

From source file:ratpack.server.internal.InferringPublicAddress.java

private HostAndPort getHostData(Request request) {
    Headers headers = request.getHeaders();
    String hostPortString = Strings.emptyToNull(headers.get(HOST.toString()));
    return hostPortString != null ? HostAndPort.fromString(hostPortString) : null;
}

From source file:org.n52.shetland.ogc.ows.extension.Extensions.java

private boolean check(String name, Extension<?> extension, Function<Extension<?>, String> extractor) {
    if (Strings.emptyToNull(name) == null || extension == null) {
        return false;
    }//from  www.j a v a  2s  . c o m
    return Optional.ofNullable(extractor.apply(extension)).map(s -> s.equalsIgnoreCase(name))
            .orElseGet(() -> false);
}

From source file:lu.list.itis.dkd.aig.process.OnDemandTextOntologyCreationProcess.java

/**
 * Constructor initializing all fields./*from   w  w  w . j a v a  2  s .c  om*/
 *
 * @param parameters
 *            A list of parameters keyed by the parameter name to draw all
 *            fields values from.
 * @throws TemplateParseException
 *             Thrown when one or more of the required parameter values was
 *             missing or of an erroneous value.
 */
public OnDemandTextOntologyCreationProcess(final ArrayListMultimap<String, String> parameters)
        throws TemplateParseException, ResolutionException {
    super(parameters);

    checkArgument(parameters.containsKey(Externalization.DATASOURCE_KEY),
            "The datasource key provided for the process must be specified and non-emtpy!");

    datasourceKey = Strings.emptyToNull(parameters.get(Externalization.DATASOURCE_KEY).get(0));
    checkNotNull(datasourceKey, "The datasource key provided for the process must be specified and non-emtpy!");

    URI datasource = outcomeVariablesByValueKey.get(datasourceKey);
    datasourceVariable = VariableBuilder.getVariableFromBlueprint(datasource);

    try {
        datasourceValue = datasourceVariable.getValueByIdentifier(datasourceKey);
    } catch (TemplateConsistencyException e) {
        throw new TemplateParseException(
                "Unable to get value: " + datasourceKey + " in: " + datasourceValue.getIdentifier(), e);
    }

    if (parameters.containsKey(Externalization.NUMBER_OF_DISTRACTORS)) {
        numberOfDistractors = Integer.parseInt(parameters.get(Externalization.NUMBER_OF_DISTRACTORS).get(0));
    }

    if (parameters.containsKey(Externalization.FIRST_SENTENCE)) {
        skipFirstSentence = Boolean.parseBoolean(parameters.get(Externalization.FIRST_SENTENCE).get(0));
    }
    if (parameters.containsKey(Externalization.USE_NGRAM_ARTICLE_CORRECTION)) {
        useNGramArticleCorrection = Boolean
                .parseBoolean(parameters.get(Externalization.USE_NGRAM_ARTICLE_CORRECTION).get(0));
    }
    if (parameters.containsKey(Externalization.USE_GRAMMATICAL_DEPENDENCIES)) {
        useGrammaticalDependencies = Boolean
                .parseBoolean(parameters.get(Externalization.USE_GRAMMATICAL_DEPENDENCIES).get(0));
    }
    if (parameters.containsKey(Externalization.SOUNDEX)) {
        useSoundex = Boolean.parseBoolean(parameters.get(Externalization.SOUNDEX).get(0));
    }
    if (parameters.containsKey(Externalization.FEEDBACK)) {
        generateFeedback = Boolean.parseBoolean(parameters.get(Externalization.FEEDBACK).get(0));
    }
    if (parameters.containsKey(Externalization.APPROACH)) {
        approach = Approach.valueOf(parameters.get(Externalization.APPROACH).get(0).toUpperCase());
    }
    if (parameters.containsKey(Externalization.DIFFICULTY)) {
        difficulty = Difficulty.valueOf(parameters.get(Externalization.DIFFICULTY).get(0).toUpperCase());
    }

}

From source file:ru.org.linux.comment.CommentPrepareService.java

private PreparedComment prepareComment(MessageText messageText, User author, @Nullable String remark,
        @Nonnull Comment comment, CommentList comments, boolean secure, Template tmpl, Topic topic)
        throws UserNotFoundException {
    String processedMessage = prepareCommentText(messageText,
            !topicPermissionService.followAuthorLinks(author));

    ReplyInfo replyInfo = null;/*from w w w  . j a va2 s.  co  m*/
    boolean deletable = false;
    boolean editable = false;

    if (comments != null) {
        if (comment.getReplyTo() != 0) {
            CommentNode replyNode = comments.getNode(comment.getReplyTo());

            boolean replyDeleted = replyNode == null;
            if (replyDeleted) {
                //    
                replyInfo = new ReplyInfo(comment.getReplyTo(), replyDeleted);
            } else {
                Comment reply = replyNode.getComment();

                boolean samePage = false;

                if (tmpl != null) {
                    int replyPage = comments.getCommentPage(reply, tmpl.getProf());
                    samePage = comments.getCommentPage(comment, tmpl.getProf()) == replyPage;
                }

                String replyAuthor = userDao.getUserCached(reply.getUserid()).getNick();

                replyInfo = new ReplyInfo(reply.getId(), replyAuthor,
                        Strings.emptyToNull(reply.getTitle().trim()), reply.getPostdate(), samePage,
                        replyDeleted);
            }
        }

        boolean haveAnswers = comments.getNode(comment.getId()).isHaveAnswers();

        if (tmpl != null && topic != null) {
            final User currentUser = tmpl.getCurrentUser();

            deletable = topicPermissionService.isCommentDeletableNow(comment, currentUser, topic, haveAnswers);

            if (currentUser != null) {
                editable = topicPermissionService.isCommentEditableNow(comment, currentUser, haveAnswers,
                        topic);
            }
        }
    }

    Userpic userpic = null;

    if (tmpl != null && tmpl.getProf().isShowPhotos()) {
        userpic = userService.getUserpic(author, tmpl.getProf().getAvatarMode(), false);
    }

    ApiUserRef ref = userService.ref(author, tmpl != null ? tmpl.getCurrentUser() : null);

    ApiDeleteInfo deleteInfo = loadDeleteInfo(comment);

    EditSummary editSummary = loadEditSummary(comment);

    String postIP = null;
    String userAgent = null;

    if (tmpl != null && tmpl.isModeratorSession()) {
        postIP = comment.getPostIP();
        userAgent = userAgentDao.getUserAgentById(comment.getUserAgentId());
    }

    return new PreparedComment(comment, ref, processedMessage, replyInfo, deletable, editable, remark, userpic,
            deleteInfo, editSummary, postIP, userAgent);
}

From source file:org.robotframework.ide.eclipse.main.plugin.project.LibrariesAutoDiscoverer.java

@VisibleForTesting
LibrariesAutoDiscoverer(final RobotProject robotProject, final List<? extends IResource> resources,
        final boolean showSummary, final String libraryNameToDiscover) {
    super(robotProject, resources, new LibrariesSourcesCollector(robotProject), new DryRunTargetsCollector());
    this.showSummary = showSummary;
    this.libraryNameToDiscover = Optional.ofNullable(Strings.emptyToNull(libraryNameToDiscover));
    this.dryRunLibraryImportCollector = new RobotDryRunLibraryImportCollector(
            robotProject.getStandardLibraries().keySet());
}

From source file:com.google.gerrit.server.project.CreateProject.java

@Override
public Object apply(TopLevelResource resource, Input input)
        throws BadRequestException, UnprocessableEntityException, ProjectCreationFailedException, IOException {
    if (input == null) {
        input = new Input();
    }/*from  ww  w  .j ava 2  s.c o m*/
    if (input.name != null && !name.equals(input.name)) {
        throw new BadRequestException("name must match URL");
    }

    final CreateProjectArgs args = new CreateProjectArgs();
    args.setProjectName(name);
    if (!Strings.isNullOrEmpty(input.parent)) {
        args.newParent = projectsCollection.get().parse(input.parent).getControl();
    }
    args.createEmptyCommit = input.createEmptyCommit;
    args.permissionsOnly = input.permissionsOnly;
    args.projectDescription = Strings.emptyToNull(input.description);
    args.submitType = Objects.firstNonNull(input.submitType, SubmitType.MERGE_IF_NECESSARY);
    args.branch = input.branches;
    if (input.owners != null) {
        List<AccountGroup.UUID> ownerIds = Lists.newArrayListWithCapacity(input.owners.size());
        for (String owner : input.owners) {
            ownerIds.add(groupsCollection.get().parse(owner).getGroupUUID());
        }
        args.ownerIds = ownerIds;
    }
    args.contributorAgreements = Objects.firstNonNull(input.useContributorAgreements,
            InheritableBoolean.INHERIT);
    args.signedOffBy = Objects.firstNonNull(input.useSignedOffBy, InheritableBoolean.INHERIT);
    args.contentMerge = input.submitType == SubmitType.FAST_FORWARD_ONLY ? InheritableBoolean.FALSE
            : Objects.firstNonNull(input.useContentMerge, InheritableBoolean.INHERIT);
    args.changeIdRequired = Objects.firstNonNull(input.requireChangeId, InheritableBoolean.INHERIT);

    Project p = createProjectFactory.create(args).createProject();
    return Response.created(json.format(p));
}

From source file:org.gbif.registry.ws.guice.StringTrimInterceptor.java

private void trimStringsOf(Object target, int level) {
    if (target != null && level <= MAX_RECURSION) {
        LOG.debug("Trimming class: {}", target.getClass());

        WrapDynaBean wrapped = new WrapDynaBean(target);
        DynaClass dynaClass = wrapped.getDynaClass();
        for (DynaProperty dynaProp : dynaClass.getDynaProperties()) {
            if (String.class.isAssignableFrom(dynaProp.getType())) {
                String prop = dynaProp.getName();
                String orig = (String) wrapped.get(prop);
                if (orig != null) {
                    String trimmed = Strings.emptyToNull(orig.trim());
                    if (!Objects.equal(orig, trimmed)) {
                        LOG.debug("Overriding value of [{}] from [{}] to [{}]", prop, orig, trimmed);
                        wrapped.set(prop, trimmed);
                    }//w w  w . j a  va2  s .  c om
                }
            } else {
                try {
                    // trim everything in the registry model package (assume that Dataset resides in the correct package here)
                    Object property = wrapped.get(dynaProp.getName());
                    if (property != null && Dataset.class.getPackage() == property.getClass().getPackage()) {
                        trimStringsOf(property, level + 1);
                    }

                } catch (IllegalArgumentException e) {
                    // expected for non accessible properties
                }
            }
        }
    }
}