if (logger.isDebugEnabled()) {
            logger.debug("Send {} to the searchers.", query);
        }
        final int pageSize = params.getPageSize();
        final int startPosition = params.getStartPosition();
        if (startPosition * 2 >= windowSize) {
            int offset = params.getOffset();
            if (offset < 0) {
                offset = 0;
            } else if (offset > windowSize / 2) {

        }

        @Override
        public String getSort() {
            return request.getParameter("sort");
        }

        @Override
        public int getStartPosition() {
            if (startPosition != -1) {
                return startPosition;
            }

            final String start = request.getParameter("start");
            if (StringUtil.isBlank(start)) {

        // search log
        if (fessConfig.isSearchLog()) {
            ComponentUtil.getSearchLogHelper().addSearchLog(params, DfTypeUtil.toLocalDateTime(requestedTime), queryId, query,
                    params.getStartPosition(), params.getPageSize(), queryResponseList);
        }

        // favorite
        if (fessConfig.isUserFavorite()) {
            ComponentUtil.getUserInfoHelper().storeQueryId(queryId, documentItems);

                    @Override
                    public int getPageSize() {
                        return 0;
                    }

                    @Override
                    public int getStartPosition() {
                        return 0;
                    }
                };
                params.q = query;
                final SearchRenderData data = new SearchRenderData();