private static EPDataFlowEmitter GenerateRuntimeContext(
string engineURI,
string statementName,
bool audit,
string dataflowName,
int producerOpNum,
string operatorPrettyPrint,
DataFlowSignalManager dataFlowSignalManager,
IList <ObjectBindingPair>[] targetsPerStream,
EPDataFlowInstantiationOptions options,
EngineImportService engineImportService)
{
// handle no targets
if (targetsPerStream == null)
{
return(new EPDataFlowEmitterNoTarget(producerOpNum, dataFlowSignalManager));
}
// handle single-stream case
if (targetsPerStream.Length == 1)
{
var targets = targetsPerStream[0];
// handle single-stream single target case
if (targets.Count == 1)
{
var target = targets[0];
return(GetSubmitHandler(
engineURI, statementName, audit, dataflowName, producerOpNum, operatorPrettyPrint,
dataFlowSignalManager, target, options.GetExceptionHandler(), engineImportService));
}
var handlers = new SubmitHandler[targets.Count];
for (var i = 0; i < handlers.Length; i++)
{
handlers[i] = GetSubmitHandler(
engineURI, statementName, audit, dataflowName, producerOpNum, operatorPrettyPrint,
dataFlowSignalManager, targets[i], options.GetExceptionHandler(), engineImportService);
}
return(new EPDataFlowEmitter1StreamNTarget(producerOpNum, dataFlowSignalManager, handlers));
}
else
{
// handle multi-stream case
var handlersPerStream = new SubmitHandler[targetsPerStream.Length][];
for (var streamNum = 0; streamNum < targetsPerStream.Length; streamNum++)
{
var handlers = new SubmitHandler[targetsPerStream[streamNum].Count];
handlersPerStream[streamNum] = handlers;
for (var i = 0; i < handlers.Length; i++)
{
handlers[i] = GetSubmitHandler(
engineURI, statementName, audit, dataflowName, producerOpNum, operatorPrettyPrint,
dataFlowSignalManager, targetsPerStream[streamNum][i], options.GetExceptionHandler(),
engineImportService);
}
}
return(new EPDataFlowEmitterNStreamNTarget(producerOpNum, dataFlowSignalManager, handlersPerStream));
}
}