protected override TStream CreateOutputStream(ToTextDataStreamFileArgs <TIn, TStream> args)
{
var firstStreamWriter = args.TargetDataStream.Observable.First().Do(i => PreProcess(i, args.Mapping)).DelayTillEndOfStream();
var obs = args.MainStream.Observable
.CombineWithLatest(firstStreamWriter, (i, r) => { ProcessValueToOutput(r, args.Mapping, i); return(i); }, true);
return(CreateMatchingStream(obs, args.MainStream));
}
public ToTextDataStreamStreamNode(string name, ToTextDataStreamFileArgs <TIn, TStream> args) : base(name, args)
{
_serialize = args.Mapping.GetSerializer();
}
