protected void sendToSlack(final CardView cardView, final SMailPostingDiscloser discloser) {
        // https://api.slack.com/messaging/webhooks#posting_with_webhooks
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String slackWebhookUrls = fessConfig.getSlackWebhookUrls();
        if (StringUtil.isBlank(slackWebhookUrls)) {
            return;
        }
        final String body = toSlackMessage(discloser);

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String refresh = StringUtil.isNotBlank(fessConfig.getIndexReindexRefresh()) ? fessConfig.getIndexReindexRefresh() : null;
        final String requestsPerSecond = getReindexRequestsPerSecound(fessConfig);
        final String scroll = StringUtil.isNotBlank(fessConfig.getIndexReindexScroll()) ? fessConfig.getIndexReindexScroll() : null;

        defaultQuery.add(builder.apply(fessConfig.getIndexFieldTitle(), fessConfig.getQueryBoostTitleAsDecimal().floatValue()));
        defaultQuery.add(builder.apply(fessConfig.getIndexFieldContent(), fessConfig.getQueryBoostContentAsDecimal().floatValue()));
        final float importantContentBoost = fessConfig.getQueryBoostImportantContentAsDecimal().floatValue();
        if (importantContentBoost >= 0.0f) {

        };

        ComponentUtil.register(fessConfig, "fessConfig");
    }

    @Override
    public void tearDown() throws Exception {
        ComponentUtil.setFessConfig(null);
        super.tearDown();
    }

    // Test basic property retrieval
    public void test_get_basicProperty() {
        // Test getting a property from the config
        String value = fessConfig.get("domain.title");

        getDoc(form).ifPresent(entity -> {
            form.doc = fessConfig.convertToEditableDoc(entity);
            form.id = (String) entity.remove(fessConfig.getIndexFieldId());
            form.seqNo = (Long) entity.remove(fessConfig.getIndexFieldSeqNo());
            form.primaryTerm = (Long) entity.remove(fessConfig.getIndexFieldPrimaryTerm());
        }).orElse(() -> {

    }

    // Test findBusinessLocale with valid locale parameter
    public void test_findBusinessLocale_withValidLocale() {
        // Setup mock config
        FessConfig mockConfig = new FessConfig.SimpleImpl() {
            @Override
            public String getQueryBrowserLangParameterName() {
                return "lang";
            }
        };
        ComponentUtil.setFessConfig(mockConfig);

        final String indexFieldBoost = fessConfig.getIndexFieldBoost();
        final String indexFieldRole = fessConfig.getIndexFieldRole();
        final String indexFieldLastModified = fessConfig.getIndexFieldLastModified();
        final String indexFieldTimestamp = fessConfig.getIndexFieldTimestamp();
        final String indexFieldLang = fessConfig.getIndexFieldLang();

        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        final StringBuilder resultBuf = new StringBuilder();

        // clean up
        final QueryBuilder queryBuilder = QueryBuilders.rangeQuery(fessConfig.getIndexFieldExpires()).to("now");
        try {
            searchEngineClient.deleteByQuery(fessConfig.getIndexDocumentUpdateIndex(), queryBuilder);

        }
        if (permission.startsWith(fessConfig.getRoleSearchUserPrefix())
                && permission.length() > fessConfig.getRoleSearchUserPrefix().length()) {
            return aclPrefix + userPrefix + permission.substring(fessConfig.getRoleSearchUserPrefix().length());
        }
        if (permission.startsWith(fessConfig.getRoleSearchGroupPrefix())
                && permission.length() > fessConfig.getRoleSearchGroupPrefix().length()) {

            return buildDefaultQueryBuilder(fessConfig, context,
                    (f, b) -> QueryBuilders.fuzzyQuery(f, text)
                            .fuzziness(Fuzziness.fromEdits(fuzzyQuery.getMaxEdits()))
                            .boost(b * boost)
                            .maxExpansions(fessConfig.getQueryFuzzyExpansionsAsInteger())
                            .prefixLength(fessConfig.getQueryFuzzyPrefixLengthAsInteger())