public static IcebergDataNodeDTO getFromJson(@NotNull String extParams) {
        try {
            return JsonUtils.parseObject(extParams, IcebergDataNodeDTO.class);
        } catch (Exception e) {
            throw new BusinessException(ErrorCodeEnum.GROUP_INFO_INCORRECT,
                    String.format("Failed to parse extParams for Iceberg node: %s", e.getMessage()));
        }
    }
Get the dto instance from the JSON string.
inlong-manager/manager-pojo/src/main/java/org/apache/inlong/manager/pojo/node/iceberg/IcebergDataNodeDTO.java