final UserInfoService userInfoService = ComponentUtil.getComponent(UserInfoService.class);
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();

        final StringBuilder resultBuf = new StringBuilder();

        // purge crawling sessions
        try {
            crawlingInfoService.deleteBefore(systemHelper.getCurrentTimeAsLong());

     * @return list of maps containing log file information (id, name, lastModified, size)
     */
    public static List<Map<String, Object>> getLogFileItems() {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final List<Map<String, Object>> logFileItems = new ArrayList<>();
        final String logFilePath = systemHelper.getLogFilePath();
        if (StringUtil.isNotBlank(logFilePath)) {

     * in test and production environments.
     */
    @Override
    protected void delayForWaitingNewUrl() {
        try {
            ComponentUtil.getSystemHelper().calibrateCpuLoad();
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to calibrate CPU load", e);
            }
        }

        try {

     */
    protected void storeQueue(final List<Tuple3<String, String, String>> taskList) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final String[] targets = fessConfig.getThumbnailGeneratorTargetsAsArray();
        final List<ThumbnailQueue> list = new ArrayList<>();
        taskList.stream().filter(entity -> entity != null).forEach(task -> {

        fessConfig.storeSystemProperties();
        ComponentUtil.getLdapManager().updateConfig();
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        systemHelper.refreshDesignJspFiles();
        systemHelper.updateSystemProperties();

        if (StringUtil.isNotBlank(form.logLevel)) {
            systemHelper.setLogLevel(form.logLevel);
        }

        verifyToken(this::asDownloadHtml);

        return asStream("elevate.csv").contentTypeOctetStream().stream(out -> {
            final Path tempFile = ComponentUtil.getSystemHelper().createTempFile("fess-elevate-", ".csv").toPath();
            try {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(Files.newOutputStream(tempFile), getCsvEncoding()))) {

                final Long expiredTime = accessToken.getExpiredTime();
                if (expiredTime != null && expiredTime.longValue() > 0
                        && expiredTime.longValue() < ComponentUtil.getSystemHelper().getCurrentTimeAsLong()) {
                    throw new InvalidAccessTokenException("invalid_token",
                            "The token is expired(" + FessFunctions.formatDate(FessFunctions.date(expiredTime)) + ").");

        if (StringUtil.isNotBlank(options.propertiesPath)) {
            systemProperties.reload(options.propertiesPath);
        } else {
            try {
                final File propFile = ComponentUtil.getSystemHelper().createTempFile("crawler_", ".properties");
                if (propFile.delete() && logger.isDebugEnabled()) {
                    logger.debug("Deleted temp file: path={}", propFile.getAbsolutePath());
                }

        final int docPerReq = fessConfig.getSuggestUpdateDocPerRequestAsInteger();
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        suggester.indexer().indexFromDocument(() -> {
            final ESSourceReader reader = new ESSourceReader(ComponentUtil.getSearchEngineClient(), suggester.settings(),

        final String cpSeparator = SystemUtils.IS_OS_WINDOWS ? ";" : ":";
        final ServletContext servletContext = ComponentUtil.getComponent(ServletContext.class);
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final ProcessHelper processHelper = ComponentUtil.getProcessHelper();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        cmdList.add(fessConfig.getJavaCommandPath());