saveToken();
        return asHtml(path_AdminSuggest_AdminSuggestJsp).useForm(SuggestForm.class);
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse deleteAllWords() {
        if (!suggestHelper.deleteAllWords()) {
            throwValidationError(messages -> messages.addErrorsFailedToDeleteDocInAdmin(GLOBAL),
                    () -> asHtml(path_AdminSuggest_AdminSuggestJsp).useForm(SuggestForm.class));

    }

    // DELETE /api/admin/suggest/all
    @Execute
    public JsonResponse<ApiResult> delete$all() {
        if (!suggestHelper.deleteAllWords()) {
            throwValidationErrorApi(messages -> messages.addErrorsFailedToDeleteDocInAdmin(GLOBAL));
        }
        return asJson(new ApiResult.ApiResponse().status(ApiResult.Status.OK).result());
    }

    public long getDocumentWordsNum() {
        return suggester.getDocumentWordsNum();
    }

    public long getQueryWordsNum() {
        return suggester.getQueryWordsNum();
    }

    public boolean deleteAllWords() {
        final SuggestDeleteResponse response = suggester.indexer().deleteAll();
        if (response.hasError()) {
            logger.warn("Failed to delete all words.", response.getErrors().get(0));