if (crawlingInfo == null) {
            throw new FessSystemException("Crawling Session is null.");
        }
        final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
        if (crawlingInfo.getCreatedTime() == null) {
            crawlingInfo.setCreatedTime(now);
        }
    }

    /**

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

        }
        if (COLLECTION.equalsIgnoreCase(qName) && COLLECTIONS.equalsIgnoreCase(tagQueue.peekLast())) {
            final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
            final String name = attributes.getValue("Name");
            labelType = new LabelType();
            labelType.setName(name);
            labelType.setValue(name);

        if (fessConfig.isLdapAllowEmptyPermission()) {
            return true;
        }

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        for (final String permission : ldapUser.getPermissions()) {
            if (!systemHelper.isUserPermission(permission)) {
                return true;
            }
        }
        return false;

     *
     * @return array of data store names sorted alphabetically, never null
     */
    public synchronized String[] getDataStoreNames() {
        final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
        if (now - lastLoadedTime > 60000L) {
            final List<String> nameList = loadDataStoreNameList();
            dataStoreNames = nameList.toArray(n -> new String[nameList.size()]);

            }
        }

        return Constants.TRUE;
    }

    protected synchronized void initDocUrlPattern() {

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        if (includedDocUrlPatterns == null) {
            if (StringUtil.isNotBlank(getIncludedDocUrls())) {
                final List<Pattern> urlPatterList = new ArrayList<>();

                    BadWord badWord = badWordBhv.selectEntity(cb -> cb.query().setSuggestWord_Equal(target)).orElse(null);//TODO
                    final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
                    if (isDelete) {
                        badWordBhv.delete(badWord);
                    } else if (badWord == null) {
                        badWord = new BadWord();

    }

    /**
     * Gets the current system time in milliseconds.
     *
     * @return current time in milliseconds
     */
    protected long getCurrentTimeMillis() {
        return ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
    }

    /**
     * Creates a string buffer for logging statistics information.
     *
     * @param keyObj the crawler object
     * @param time the timestamp to include

     * @return An optional entity of a boost document rule.
     */
    public static OptionalEntity<BoostDocumentRule> getBoostDocumentRule(final CreateForm form) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final String username = systemHelper.getUsername();
        final long currentTime = systemHelper.getCurrentTimeAsLong();
        return getEntity(form, username, currentTime).map(entity -> {

            }
        }

        return Constants.TRUE;

    }

    protected synchronized void initDocPathPattern() {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();

        if (includedDocPathPatterns == null) {
            if (StringUtil.isNotBlank(getIncludedDocPaths())) {
                final List<Pattern> pathPatterList = new ArrayList<>();