private static void ProcessSuccessor(AstEtlFragmentReferenceNode fragmentReference, AstEtlFragmentNode clonedFragment, GraphNode<AstTransformationNode> etlSinkNode, AstSingleInTransformationNode successor)
{
if (successor.InputPath == null)
{
successor.InputPath = new AstDataflowMappedInputPathNode(successor);
successor.InputPath.OutputPath = etlSinkNode.Item.PreferredOutputPath;
}
// TODO:
////successor.InputPath.OutputPath = etlSinkNode.Item.OutputPath;
foreach (var outputMapping in fragmentReference.Outputs)
{
var currentMapping = new AstDataflowColumnMappingNode(successor.InputPath)
{
SourceName = outputMapping.SourcePathColumnName,
TargetName = outputMapping.DestinationPathColumnName
};
successor.InputPath.Mappings.Add(currentMapping);
}
foreach (var inputMapping in fragmentReference.Inputs)
{
var currentMapping = new AstDataflowColumnMappingNode(successor.InputPath)
{
SourceName = inputMapping.DestinationPathColumnName,
TargetName = inputMapping.SourcePathColumnName
};
successor.InputPath.Mappings.Add(currentMapping);
}
foreach (var ignore in clonedFragment.Ignores)
{
var currentMapping = new AstDataflowColumnMappingNode(successor.InputPath)
{
SourceName = ignore.PathColumnName
};
successor.InputPath.Mappings.Add(currentMapping);
}
}
public static void ValidateEtlFragment(AstEtlFragmentNode etlFragment)
{
var graph = new TransformationGraph(etlFragment.Transformations);
AstTransformationNode root = null;
foreach (var rootNode in graph.RootNodes)
{
if (!(rootNode.Item is AstSourceTransformationNode))
{
if (root != null)
{
MessageEngine.Trace(etlFragment, Severity.Error, "V0120", "Etl Fragments cannot have more than one root node with InputPaths");
}
root = rootNode.Item;
}
}
AstTransformationNode leaf = null;
foreach (var leafNode in graph.LeafNodes)
{
if (!(leafNode.Item is AstDestinationNode))
{
if (leaf != null)
{
MessageEngine.Trace(etlFragment, Severity.Error, "V0121", "Etl Fragments cannot have more than one leaf node with OutputPaths");
}
leaf = leafNode.Item;
}
}
}