if (expectedTime[0] == 0) {
                    expectedTime[0] = System.currentTimeMillis();
                }
                return expectedTime[0];
            }
        };

        FessConfig fessConfig = new TestFessConfig() {
            @Override
            public int getPurgeSearchLogDay() {
                return 30;
            }

            @Override
            public int getPurgeJobLogDay() {

        FessConfig mockConfig = new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public Set<String> getApiPingEsFieldSet() {
                return new HashSet<>();
            }
        };
        ComponentUtil.register(mockConfig, "fessConfig");

    }

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

        // this configuration is on fess_env.properties because this is true only when development
        direction.directDevelopmentHere(fessConfig.isDevelopmentHere());

        // titles of the application for logging are from configurations
        direction.directLoggingTitle(fessConfig.getDomainTitle(), fessConfig.getEnvironmentTitle());

        // this configuration is on sea_env.properties because it has no influence to production

         */
        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();

            if (configIdValue == null) {
                continue;
            }

            final QueryBuilder queryBuilder = QueryBuilders.boolQuery()
                    .must(QueryBuilders.termQuery(fessConfig.getIndexFieldUrl(), inputDoc.get(fessConfig.getIndexFieldUrl())))
                    .filter(QueryBuilders.termQuery(fessConfig.getIndexFieldConfigId(), configIdValue));

            }
        };
    }

    // Helper method to create test FessConfig
    private FessConfig createTestFessConfig() {
        return new TestFessConfig();
    }

    // Test configuration class extending FessConfig.SimpleImpl
    private static class TestFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;

        @Override

    protected static class SearchLogContext {
        final FessConfig fessConfig;
        final String[] roles;
        final String userCode;
        final String userId;
        final HttpServletRequest request;
        final String clientIp;
        final String virtualHostKey;

        SearchLogContext(final FessConfig fessConfig, final String[] roles, final String userCode, final String userId,

     * A function to find document IDs.
     */
    protected Function<Map<String, Object>, String[]> idFinder = params -> {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final SearchEngineClient client = ComponentUtil.getSearchEngineClient();
        final String index = fessConfig.getIndexDocumentUpdateIndex();
        final Object url = params.get("url");
        if (url == null) {

     *
     * @param doc the document map
     */
    protected void populateUrlLink(final Map<String, Object> doc) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (doc.get(fessConfig.getResponseFieldUrlLink()) == null) {
            doc.put(fessConfig.getResponseFieldUrlLink(), ComponentUtil.getViewHelper().getUrlLink(doc));
        }
    }

    /**