protected <RESULT extends ClickLog> RESULT createEntity(Map<String, Object> source, Class<? extends RESULT> entityType) {
        try {
            final RESULT result = entityType.newInstance();
            result.setUrlId(DfTypeUtil.toString(source.get("urlId")));
            result.setDocId(DfTypeUtil.toString(source.get("docId")));
            result.setOrder(DfTypeUtil.toInteger(source.get("order")));