public static StarRocksColumnInfo getFromJson(@NotNull String extParams) {
        if (StringUtils.isEmpty(extParams)) {
            return new StarRocksColumnInfo();
        }
        try {
            return JsonUtils.parseObject(extParams, StarRocksColumnInfo.class);
        } catch (Exception e) {
            throw new BusinessException(ErrorCodeEnum.SINK_INFO_INCORRECT,
                    String.format("Failed to parse extParams for StarRocks ColumnInfo: %s", e.getMessage()));
        }
    }
Get the extra param from the Json
inlong-manager/manager-pojo/src/main/java/org/apache/inlong/manager/pojo/sink/starrocks/StarRocksColumnInfo.java