// redirect to index page
            form.q = null;
            return redirectToRoot();
        }

        try {
            buildFormParams(form);
            form.lang = searchHelper.getLanguages(request, form);
            final WebRenderData renderData = new WebRenderData();
            searchHelper.search(form, renderData, getUserBean());

        if (fessConfig.isLoginRequired() && !fessLoginAssist.getSavedUserBean().isPresent()) {
            return true;
        }
        return false;
    }

    protected void buildFormParams(final SearchForm form) {

        final HttpSession session = request.getSession(false);
        if (session != null) {
            final Object resultsPerPage = session.getAttribute(Constants.RESULTS_PER_PAGE);