public void TransformCopyIntoParameters(Entity entity = null)
{
if (RequiresCopyParameters())
{
if (!Transforms.Any())
{
Transforms.Add(new Operation {
Method = "copy"
});
}
var first = Transforms.First();
var expression = Utility.Split(T, ExpressionSplitter)[0];
var parameters = Utility.Split(expression.Substring(expression.IndexOf('(') + 1), ',');
foreach (var p in parameters)
{
var parameter = new Parameter();
var modified = p.EndsWith(")") ? p.Substring(0, p.Length - 1) : p;
if (modified.Contains(":"))
{
//named values
var named = modified.Split(':');
parameter.Name = named[0];
parameter.Value = named[1];
}
else if (modified.Contains("."))
{
// entity, field combinations
var dotted = modified.Split('.');
parameter.Entity = dotted[0];
parameter.Field = dotted[1];
}
else
{
parameter.Field = modified; // just fields
if (entity != null)
{
parameter.Entity = entity.Alias;
}
}
first.Parameters.Add(parameter);
}
// hack
if (first.Parameters.Count == 1 && first.Parameters.First().Field == "*")
{
first.Parameter = "*";
first.Parameters.Clear();
}
}
}
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())
{
data = Transforms.Aggregate(data, (rows, t) => t.Operate(rows));
}
if (Validators.Any())
{
data = Validators.Aggregate(data, (rows, v) => v.Operate(rows));
}
return(data);
}
Context.Info("Change Detected: No.");
return(Enumerable.Empty <IRow>());
}
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)
{
if (Context.Entity.GetVersionField().Type == "byte[]")
{
var min = Context.Entity.MinVersion == null ? "null" : "0x" + string.Format("{0:X}", Utility.BytesToHexString((byte[])Context.Entity.MinVersion).TrimStart(new[] { '0' }));
var max = Context.Entity.MaxVersion == null ? "null" : "0x" + string.Format("{0:X}", Utility.BytesToHexString((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, Context.Entity.MinVersion);
}
}
}
var data = Reader == null?InputProvider.Read() : Reader.Read();
if (Transforms.Any())
{
data = Transforms.Aggregate(data, (rows, t) => t.Operate(rows));
}
if (Validators.Any())
{
data = Validators.Aggregate(data, (rows, v) => v.Operate(rows));
}
return(data);
}
Context.Info("Change Detected: No.");
return(Enumerable.Empty <IRow>());
}
public void TransformCopyIntoParameters(Entity entity = null)
{
if (RequiresCopyParameters())
{
if (!Transforms.Any())
{
Transforms.Add(new Transform {
Method = "copy"
});
}
var first = Transforms.First();
var expression = Utility.Split(T, ExpressionSplitter)[0];
var parameters = Utility.Split(expression.Substring(expression.IndexOf('(') + 1), ',');
foreach (var p in parameters)
{
var parameter = new Parameter();
var modified = p.TrimEnd(')');
if (modified.Contains(":"))
{
//named values
var named = modified.Split(':');
parameter.Name = named[0];
parameter.Value = named[1];
}
else if (modified.Contains("."))
{
// entity, field combinations
var dotted = modified.Split('.');
parameter.Entity = dotted[0];
parameter.Field = dotted[1];
}
else
{
parameter.Field = modified; // just fields
if (entity != null)
{
parameter.Entity = entity.Alias;
}
}
first.Parameters.Add(parameter);
}
// hack
if (first.Parameters.Count == 1 && first.Parameters.First().Field == "*")
{
first.Parameter = "*";
first.Parameters.Clear();
}
}
// e.g. t="copy(x).is(int).between(3,5), both is() and between() should refer to x.
if (RequiresCompositeValidator())
{
var first = Transforms.First();
foreach (var transform in Transforms.Skip(1))
{
transform.Parameter = transform.Parameter == string.Empty ? first.Parameter : transform.Parameter;
transform.Parameters = transform.Parameters.Count == 0 ? first.Parameters : transform.Parameters;
}
}
}
bool RequiresCopyParameters()
{
return(T.StartsWith("copy(", StringComparison.Ordinal) && Transforms.Any());
}
