public virtual IEnumerable <IRow> Read()
{
Context.Debug(() => $"Running {Transforms.Count} transforms.");
if (Context.Entity.NeedsUpdate())
{
if (Context.Process.Mode != "init")
{
if (Context.Entity.Version != string.Empty)
{
var version = Context.Entity.GetVersionField();
if (version.Type == "byte[]")
{
var min = Context.Entity.MinVersion == null ? "null" : Utility.BytesToHexViaLookup32((byte[])Context.Entity.MinVersion).TrimStart(new[] { '0' });
var max = Context.Entity.MaxVersion == null ? "null" : Utility.BytesToHexViaLookup32((byte[])Context.Entity.MaxVersion).TrimStart(new[] { '0' });
Context.Info("Change Detected: Input:{0} > Output:{1}", max, min);
}
else
{
Context.Info("Change Detected: Input:{0} > Output:{1}", Context.Entity.MaxVersion ?? "null", Context.Entity.MinVersion ?? "null");
}
}
}
var data = Reader == null?InputProvider.Read() : Reader.Read();
#if NETS10
// no PLINQ
#else
if (Context.Entity.Pipeline == "parallel.linq")
{
data = data.AsParallel();
}
#endif
if (Transforms.Any())
{
#if NETS10
data = Transforms.Aggregate(data, (rows, t) => t.Operate(rows));
#else
if (Context.Entity.Pipeline == "parallel.linq")
{
data = Transforms.AsParallel().Aggregate(data, (rows, t) => t.Operate(rows));
}
else
{
data = Transforms.Aggregate(data, (rows, t) => t.Operate(rows));
}
#endif
}
if (Validators.Any())
{
#if NETS10
data = Validators.Aggregate(data, (rows, v) => v.Operate(rows));
#else
if (Context.Entity.Pipeline == "parallel.linq")
{
data = Validators.AsParallel().Aggregate(data, (rows, v) => v.Operate(rows));
}
else
{
data = Validators.Aggregate(data, (rows, v) => v.Operate(rows));
}
#endif
}
return(data);
}
Context.Info("Change Detected: No.");
return(Enumerable.Empty <IRow>());
}
