final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final HttpServletResponse httpResponse = (HttpServletResponse) response;
        httpResponse.addHeader(ACCESS_CONTROL_ALLOW_ORIGIN, origin);
        httpResponse.addHeader(ACCESS_CONTROL_ALLOW_METHODS, fessConfig.getApiCorsAllowMethods());
        httpResponse.addHeader(ACCESS_CONTROL_ALLOW_HEADERS, fessConfig.getApiCorsAllowHeaders());

    private String message;

    @Override
    public void initialize(final CustomSize constraintAnnotation) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String minKey = constraintAnnotation.minKey();
        if (StringUtil.isNotBlank(minKey)) {
            min = Integer.parseInt(fessConfig.get(minKey));
        }
        final String maxKey = constraintAnnotation.maxKey();

        crudMode = CrudMode.CREATE;
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        includedUrls = fessConfig.getCrawlerDocumentHtmlDefaultIncludeIndexPatterns();
        excludedUrls = fessConfig.getCrawlerDocumentHtmlDefaultExcludeIndexPatterns();
        includedDocUrls = fessConfig.getCrawlerDocumentHtmlDefaultIncludeSearchPatterns();
        excludedDocUrls = fessConfig.getCrawlerDocumentHtmlDefaultExcludeSearchPatterns();

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final List<String> list = new ArrayList<>();
        list.add(fessConfig.getRoleSearchUserPrefix() + getName());
        stream(getRoles()).of(stream -> stream.forEach(s -> list.add(fessConfig.getRoleSearchRolePrefix() + decode(s))));
        stream(getGroups()).of(stream -> stream.forEach(s -> list.add(fessConfig.getRoleSearchGroupPrefix() + decode(s))));

         */
        protected final FessConfig fessConfig;

        FilePurgeVisitor(final Path basePath, final String imageExtention, final long expiry) {
            this.basePath = basePath;
            this.imageExtention = imageExtention;
            this.expiry = expiry;
            fessConfig = ComponentUtil.getFessConfig();
            maxPurgeSize = fessConfig.getPageThumbnailPurgeMaxFetchSizeAsInteger();

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String modelName = fessConfig.getLtrModelName();
        if (StringUtil.isBlank(modelName)) {
            return null;
        }
        return new QueryRescorerBuilder(new StoredLtrQueryBuilder().modelName(modelName).params(params))
                .windowSize(fessConfig.getLtrWindowSize());
    }

    public int getPageSize() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (num == null) {
            num = fessConfig.getPagingSearchPageSizeAsInteger();
        } else {
            try {
                if (num.intValue() > fessConfig.getPagingSearchPageMaxSizeAsInteger().intValue() || num.intValue() <= 0) {
                    num = fessConfig.getPagingSearchPageMaxSizeAsInteger();
                }

    default void initializeDefaultHttpProxy(final Map<String, Object> paramMap) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String proxyHost = fessConfig.getHttpProxyHost();
        final String proxyPort = fessConfig.getHttpProxyPort();
        if (StringUtil.isNotBlank(proxyHost) && StringUtil.isNotBlank(proxyPort)) {

            return buildDefaultQueryBuilder(fessConfig, context,
                    (f, b) -> QueryBuilders.matchPhrasePrefixQuery(f, toLowercaseWildcard(text))
                            .boost(b * boost)
                            .maxExpansions(fessConfig.getQueryPrefixExpansionsAsInteger())
                            .slop(fessConfig.getQueryPrefixSlopAsInteger()));
        }

     */
    @Override
    public Tuple3<String, String, String> createTask(final String path, final Map<String, Object> docMap) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String thumbnailId = DocumentUtil.getValue(docMap, fessConfig.getIndexFieldId(), String.class);
        final Tuple3<String, String, String> task = new Tuple3<>(getName(), thumbnailId, path);
        if (logger.isDebugEnabled()) {