static Exception CheckArguments(string type, string subtype,
IEnumerable <KeyValuePair <string, string> > parameters)
{
if (string.IsNullOrEmpty(type))
{
throw Failure.NullOrEmptyString(nameof(type));
}
if (!VALID_TYPES.Contains(type))
{
return(RuntimeFailure.ContentTypeNotStandard("type", type));
}
if (string.IsNullOrEmpty(subtype))
{
throw Failure.NullOrEmptyString(nameof(subtype));
}
return(null);
}
