if (StringUtil.isBlank(value)) {
            return StringUtil.EMPTY_STRINGS;
        }
        return split(value, ",").get(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).toArray(n -> new String[n]));
    }

    /**
     * Gets the default roles as an array.
     *
     * @return the default roles
     */
    protected static String[] getDefaultRolesAsArray() {

        final String filename = new String(Base64.getDecoder().decode(id), StandardCharsets.UTF_8).replace("..", "").replaceAll("\\s", "");
        final String logFilePath = systemHelper.getLogFilePath();
        if (StringUtil.isNotBlank(logFilePath) && isLogFilename(filename)) {
            final Path path = Paths.get(logFilePath, filename);
            return asStream(filename).contentTypeOctetStream().stream(out -> {

     */
    protected void setupListCondition(final RelatedContentCB cb, final RelatedContentPager relatedContentPager) {
        if (StringUtil.isNotBlank(relatedContentPager.term)) {
            cb.query().setTerm_Wildcard(wrapQuery(relatedContentPager.term));
        }
        if (StringUtil.isNotBlank(relatedContentPager.content)) {
            cb.query().setContent_Wildcard(wrapQuery(relatedContentPager.content));
        }

        if (form.ex_q != null) {
            stream(form.ex_q).of(stream -> stream.filter(StringUtil::isNotBlank)
                    .distinct()
                    .forEach(q -> pagingQueryList.add("ex_q=" + LaFunctions.u(q))));
        }
        if (StringUtil.isNotBlank(form.sort)) {
            pagingQueryList.add("sort=" + LaFunctions.u(form.sort));
        }
        if (form.lang != null) {

            final String includedPaths = labelType.getIncludedPaths();
            final String excludedPaths = labelType.getExcludedPaths();
            if (StringUtil.isNotBlank(includedPaths) || StringUtil.isNotBlank(excludedPaths)) {
                try {
                    list.add(new LabelTypePattern(labelType.getValue(), includedPaths, excludedPaths));
                } catch (final Exception e) {

        if (StringUtil.isBlank(slackWebhookUrls)) {
            return;
        }
        final String body = toSlackMessage(discloser);
        StreamUtil.split(slackWebhookUrls, "[,\\s]").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(url -> {
            try (CurlResponse response = Curl.post(url).header("Content-Type", "application/json").body(body).execute()) {
                if (response.getHttpStatusCode() == 200) {

            if (StringUtil.isNotBlank(getIncludedDocPaths())) {
                final List<Pattern> pathPatterList = new ArrayList<>();
                final String[] paths = getIncludedDocPaths().split("[\r\n]");
                for (final String u : paths) {
                    final String v = systemHelper.normalizeConfigPath(u);
                    if (StringUtil.isNotBlank(v)) {

                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(contentFieldNameSet::add));
        split(fessConfig.getSuggestFieldTags(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(tagFieldNameSet::add));
        split(fessConfig.getSuggestFieldRoles(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(roleFieldNameSet::add));

                boolean first2 = true;
                for (final Map.Entry<String, Object> entry : doc.entrySet()) {
                    final String name = entry.getKey();
                    if (StringUtil.isNotBlank(name) && entry.getValue() != null) {
                        if (!first2) {
                            buf.append(',');
                        } else {
                            first2 = false;

     *
     * @param msg the error message to add; ignored if null or blank
     */
    public static void addError(final String msg) {
        if (StringUtil.isNotBlank(msg)) {
            errors.offer(msg);
        }
    }

    /**
     * Command-line options container for the crawler application.
     * This class uses args4j annotations to define command-line arguments