private async Task <ServiceStatus> AppraiseThings(
IDictionary <Type, BufferBlock <BasicInfo> > rawDataQueues,
IList <BufferBlock <RatingDataContainer> > appraisedDataQueues)
{
try
{
bool status = await AppraisersManagerAsync.GetAllRatings(
rawDataQueues, appraisedDataQueues, _dataFlowOptions
);
if (status)
{
GlobalMessageHandler.OutputMessage(
"Appraisers have calculated ratings successfully."
);
return(ServiceStatus.Ok);
}
GlobalMessageHandler.OutputMessage(
"Appraisers have not calculated ratings. Result is empty."
);
return(ServiceStatus.Nothing);
}
catch (Exception ex)
{
_logger.Error(ex, "Exception occured during appraising work.");
return(ServiceStatus.AppraiseError);
}
}
private DataflowPipeline ConstructPipeline(string storageName)
{
// Input component work.
InputtersFlow inputtersFlow = InputManagerAsync.CreateFlow(storageName);
// Crawlers component work.
CrawlersFlow crawlersFlow = CrawlersManagerAsync.CreateFlow();
// Appraisers component work.
AppraisersFlow appraisersFlow = AppraisersManagerAsync.CreateFlow();
// Output component work.
OutputtersFlow outputtersFlow =
OutputManagerAsync.CreateFlow(storageName: string.Empty);
// Constructing pipeline.
inputtersFlow.LinkTo(crawlersFlow);
crawlersFlow.LinkTo(appraisersFlow);
appraisersFlow.LinkTo(outputtersFlow);
return(new DataflowPipeline(inputtersFlow, outputtersFlow));
}
