private void SetComponentProperties(OLEDBSource source)
{
switch (source.AccessMode)
{
case DataFlowSourceQueryAccessMode.SQLCOMMAND:
_instance.SetComponentProperty("AccessMode", 2);
_instance.SetComponentProperty("SqlCommand", source.Body);
Flush();
break;
case DataFlowSourceQueryAccessMode.SQLCOMMANDFROMVARIABLE:
_instance.SetComponentProperty("AccessMode", 3);
DTS.Variable sqlCommandVariable = SsisPackage.CurrentPackage.DTSPackage.Variables.Add(
("var"+Guid.NewGuid().ToString()).Replace("-", string.Empty)
, false
, "User"
, string.Empty);
sqlCommandVariable.EvaluateAsExpression = true;
sqlCommandVariable.Expression = source.Body;
_instance.SetComponentProperty("SqlCommandVariable", sqlCommandVariable.Name);
Flush();
break;
default:
MessageEngine.Global.Trace(Severity.Error, "Unknown Source Data Access Mode Type of {0}", source.AccessMode);
break;
}
}
public static PhysicalDataFlow.OLEDBSource Lower(this AstTransformation.AstQuerySourceNode astNode)
{
if (astNode.AsClassOnly)
{
return null;
}
PhysicalDataFlow.OLEDBSource physicalSource = new Ssis2008Emitter.IR.DataFlow.OLEDBSource();
physicalSource.Body = astNode.Query;
AddConnection(astNode.Connection);
physicalSource.Connection = astNode.Connection.Name;
physicalSource.Name = astNode.Name;
if (astNode.EvaluateAsExpression == true)
{
physicalSource.AccessMode = Ssis2008Emitter.IR.DataFlow.DataFlowSourceQueryAccessMode.SQLCOMMANDFROMVARIABLE;
}
else
{
physicalSource.AccessMode = Ssis2008Emitter.IR.DataFlow.DataFlowSourceQueryAccessMode.SQLCOMMAND;
}
foreach (AstTransformation.AstQuerySourceParameterNode parameter in astNode.Parameters)
{
PhysicalDataFlow.DataFlowSourceQueryParameter physicalParameter = new Ssis2008Emitter.IR.DataFlow.DataFlowSourceQueryParameter();
physicalParameter.Name = parameter.Name;
physicalParameter.VariableName = parameter.Variable.Name;
physicalParameter.Parent = physicalSource;
physicalSource.ParameterMappings.Add(physicalParameter);
}
return physicalSource;
}
