*/
    protected boolean isTargetUser(final String username) {
        if (targetUsers == null) {
            return true;
        }
        return stream(targetUsers).get(stream -> stream.anyMatch(s -> s.equals(username)));
    }

    /**
     * Executes an external command with the given parameters.
     * @param commands The command array to execute.

            if (skipDuplicateWords) {
                final String duplicateCheckStr = text.replace(" ", "");
                if (words.stream().map(word -> word.replace(" ", "")).anyMatch(word -> word.equals(duplicateCheckStr))) {
                    // skip duplicate word.
                    continue;
                }
            }

            words.add(text);

        // Clean up metrics for connections that no longer exist
        connectionMetrics.entrySet().removeIf(entry -> {
            String key = entry.getKey();
            boolean exists = connections.stream().anyMatch(conn -> getConnectionKey(conn).equals(key));
            return !exists;
        });
    }

    /**
     * Get detailed health statistics
     */
    public PoolHealthMetrics getHealthMetrics() {

        if (logger.isDebugEnabled()) {
            logger.debug("Backup download requested: id={}", id);
        }

        if (stream(fessConfig.getIndexBackupAllTargets()).get(stream -> stream.anyMatch(s -> s.equals(id)))) {
            if ("system.properties".equals(id)) {
                return asStream(id).contentTypeOctetStream().stream(out -> {

            if (searchLog != null) {
                final String userAgent = searchLog.getUserAgent();
                final boolean isBot =
                        userAgent != null && stream(botNames).get(stream -> stream.anyMatch(botName -> userAgent.indexOf(botName) >= 0));
                if (!isBot) {
                    searchLog.getUserInfo().ifPresent(userInfo -> {
                        final String code = userInfo.getId();

                // Verify expected shares are present
                List<String> shareList = List.of(shares);
                boolean hasPublic = shareList.stream().anyMatch(s -> s.toLowerCase().contains("public"));
                boolean hasShared = shareList.stream().anyMatch(s -> s.toLowerCase().contains("shared"));

                assertTrue(hasPublic || hasShared, "Should contain expected shares");

     * @return True if the language is supported
     */
    public static boolean isSupportedLanguage(final String lang) {
        return StringUtil.isNotBlank(lang) && Stream.of(SUPPORTED_LANGUAGES).anyMatch(lang::equals);
    }

    /**
     * Get analyzer names.
     * @return Analyzer names
     */
    protected Set<String> getAnalyzerNames() {
        final GetSettingsResponse response =

        final Object titleObj = dataMap.get(fessConfig.getIndexFieldTitle());
        if (titleObj != null) {
            if (titleObj instanceof String[]) {
                return stream((String[]) titleObj).get(stream -> stream.anyMatch(StringUtil::isNotBlank));
            }
            return StringUtil.isNotBlank(titleObj.toString());
        }
        return false;
    }

    /**
     * Create the parameters for extraction.

            if (StringUtil.isNotBlank(requiredKeysStr) && StreamUtil.split(requiredKeysStr, ",")
                    .get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).anyMatch(name -> {
                        final String[] values = req.getParameterValues(name);
                        if (values == null || values.length == 0 || StringUtil.isEmpty(values[0])) {