final RequestManager requestManager = ComponentUtil.getRequestManager();
            try {
                requestManager.findUserBean(FessUserBean.class)
                        .ifPresent(fessUserBean -> stream(fessUserBean.getPermissions()).of(stream -> stream.forEach(roleSet::add)))
                        .orElse(() -> {

            throws IOException, ServletException {
        final RequestManager requestManager = ComponentUtil.getRequestManager();
        if (!requestManager.findUserBean(FessUserBean.class).map(user -> user.hasRoles(acceptedRoles)).orElse(Boolean.FALSE)) {
            response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized access: " + request.getServletPath());
            return;

        searchLog.setQueryOffset(pageStart);
        searchLog.setQueryPageSize(pageSize);
        ComponentUtil.getRequestManager().findUserBean(FessUserBean.class).ifPresent(user -> {
            searchLog.setUser(user.getUserId());
        });

        LaRequestUtil.getOptionalRequest().ifPresent(req -> {

            }
        });
    }

    public String getUsername() {
        final RequestManager requestManager = ComponentUtil.getRequestManager();
        return requestManager.findUserBean(FessUserBean.class).map(FessUserBean::getUserId).orElse(Constants.GUEST_USER);
    }

    public Date getCurrentTime() {
        return new Date(getCurrentTimeAsLong());
    }