internal CSVTableFromText(IDisposing <TextReader> text)
{
reader = text.UseAsIDisposable();
// All subscriptions will get all values.
// Reading won't begin until a connection is established.
var lines = Observable.Generate(
string.Empty,
line => line != null,
_ => reader.Value.ReadLine(),
line => line)
.Replay();
header = lines.FirstAsync().Select(row => new Header(row)).ToFuture();
rows = lines.Skip(2).Select(line => new Row(line));
// Reader will be disposed as soon as all the lines have been read, or on error.
readerLifetime = lines.LastAsync().Subscribe(
_ => reader.Dispose(),
ex => reader.Dispose());
// The lines won't be read until needed.
connection = new Lazy <IDisposable>(() => lines.Connect());
}
internal TransactionsFromText(IDisposing <TextReader> textReader) => this.table = new CSVTableFromText(textReader);
public static IObservable <Row> From(IDisposing <TextReader> text) => new TransactionsFromText(text);
#pragma warning disable CA1062 // Validate arguments of public methods
public static CSVTable Table(IDisposing <TextReader> text) => new CSVTableFromText(text);