private DataIndexHelper dataIndexHelper;
    private PathMappingService pathMappingService;
    private CrawlingInfoService crawlingInfoService;
    private CrawlingInfoHelper crawlingInfoHelper;
    private SystemHelper systemHelper;
    private FessConfig fessConfig;
    private DynamicProperties systemProperties;
    private PathMappingHelper pathMappingHelper;
    private DuplicateHostHelper duplicateHostHelper;

     * @param entity the thumbnail queue entity to process
     */
    protected void process(final FessConfig fessConfig, final ThumbnailQueue entity) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        systemHelper.calibrateCpuLoad();

        if (logger.isDebugEnabled()) {
            logger.debug("Processing thumbnail: {}", entity);
        }

     * @return optional label type entity
     */
    public static OptionalEntity<LabelType> getLabelType(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 -> {
            entity.setUpdatedBy(username);

     * @return the updated buffer
     */
    protected StringBuilder appendTimestamp(final StringBuilder buf) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        append(buf, "timestamp", () -> FessFunctions.formatDate(systemHelper.getCurrentTime()));
        return buf;
    }

    /**
     * Appends exception information to the buffer.
     *

        // Create a temporary project.properties file for SystemHelper
        File propFile = File.createTempFile("project", ".properties");
        propFile.deleteOnExit();
        try (FileOutputStream fos = new FileOutputStream(propFile)) {
            fos.write("fess.version=1.0.0".getBytes());
        }

        // Initialize SystemHelper
        SystemHelper systemHelper = new SystemHelper() {
            @Override

        monitorTarget = new TestMonitorTarget();

        // Setup SystemHelper with a fixed timestamp for testing
        systemHelper = new SystemHelper() {
            @Override
            public Date getCurrentTime() {
                return new Date(1609459200000L); // 2021-01-01 00:00:00 UTC
            }
        };
        ComponentUtil.register(systemHelper, "systemHelper");
    }

    @Override

        if (locale == null) {
            locale = Locale.ENGLISH;
        }
        runtime.registerData("langItems", systemHelper.getLanguageItems(locale));
        final String username = systemHelper.getUsername();
        runtime.registerData("username", username);
        runtime.registerData("editableUser", fessLoginAssist.getSavedUserBean().map(FessUserBean::isEditable).orElse(false));

     */
    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 -> {
            entity.setUpdatedBy(username);

            }
        };
        ComponentUtil.setFessConfig(fessConfig);
        SystemHelper systemHelper = new SystemHelper() {
            @Override
            public String getProductVersion() {
                return "98.76";
            }
        };
        ComponentUtil.register(systemHelper, "systemHelper");

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

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

    /**