/// <summary>
/// Initializes a new instance of the <see cref="T:System.Object"/> class.
/// </summary>
/// <remarks>Arun: Made the constructor public because Activator.CreateInstance in Director requires this.</remarks>
public Pipeline()
{
PipelineStatus = new PipelineStatus {
PipelineState = PipelineState.Empty
};
PipelineSections = new List <PipelineSection>();
StatisticsAvailable = false;
}
protected bool CheckPipelineForCompletion()
{
if (PipelineStatus.GetMostRecentState() != PipelineState.FirstWorkerCompleted)
{
return(false);
}
// Debugging
//foreach (var pipelineSection in PipelineSections)
//{
// if (pipelineSection.DataPipeName != null /*&& pipelineSection.DataPipeName.Count > 0*/)
// {
// Tracer.Debug("Pipeline section {0} contains {1} messages.", pipelineSection.Name, pipelineSection.DataPipeName.Count);
// }
//}
// When in the Running state we can check all data pipes sequentially and if they all are empty this means we are done
if (PipelineSections.Any(pipelineSection => pipelineSection.DataPipeName != null && pipelineSection.DataPipeName.Count > 0))
{
return(false);
}
Tracer.Info("Pipeline detected that there are no more messages in the pipes.");
try
{
if (!Completed())
{
Tracer.Info("Custom Pipeline completion handler requested continuation of pipeline operation.");
return(false);
}
}
catch (Exception ex)
{
ex.Trace();
ProblemReport problemReport = new ProblemReport("Pipeline completion", WorkerStage.EndWork, ex);
PipelineStatus.ProblemReports.Add(problemReport);
}
if (PipelineStatus.ProblemReports.Any())
{
Tracer.Warning("Pipeline detected job completion WITH ERRORS in {0:0.##} seconds.", _runTime.Elapsed.TotalSeconds);
PipelineStatus.PipelineState = PipelineState.ProblemReported;
return(true);
}
Tracer.Warning("Pipeline detected job completion without errors in {0:0.##} seconds.", _runTime.Elapsed.TotalSeconds);
PipelineStatus.PipelineState = PipelineState.Completed;
return(true);
}
private void UpdatePipelineState(PipeMessageEnvelope envelope, out bool continueMessagePumping)
{
continueMessagePumping = true;
if (envelope != null)
{
ProcessReport(envelope);
if (PipelineStatus.GetMostRecentState() == PipelineState.AllWorkersQuit)
{
continueMessagePumping = false;
}
}
else
{
// No reports to process, so we have a little idle time
CheckPipelineForCompletion();
}
ReportPipelineStatus("PIPELINE STATUS: ", false);
}
protected void ReportPipelineStatus(string header, bool finalStatus)
{
if (!StatisticsAvailable)
{
return; // Nothing to report yet
}
if (PipelineStatus.GetMostRecentState() != PipelineState.Running &&
PipelineStatus.GetMostRecentState() != PipelineState.FirstWorkerCompleted)
{
// We don't need to report pipeline status unless it is Running or FirstWorkerCompleted
return;
}
if (_timeSinceTheLastProgressReport.Elapsed < _speedReportInterval)
{
return;
}
ForceReportPipelineStatus(header, finalStatus);
PeriodicPipelineServicingHook();
}
