public static async Task <HttpResponseMessage> RunClassificationForQueryCommand(
[HttpTrigger(AuthorizationLevel.Function, "POST", Route = @"CQRS/RunClassificationForQuery/{queryIdentifier}")] HttpRequestMessage req,
string queryIdentifier
)
{
#region Tracing telemetry
Activity.Current.AddTag("Query Identifier", queryIdentifier);
#endregion
// 1 - Read the classifierRequestData from the body
ClassifierRequestedEventGridEventData data = await req.Content.ReadAsAsync <ClassifierRequestedEventGridEventData>();
if (data != null)
{
if (string.IsNullOrWhiteSpace(data.InstanceKey))
{
data.InstanceKey = queryIdentifier;
}
await RunClassificationForQuery(data);
return(req.CreateResponse(System.Net.HttpStatusCode.OK));
}
else
{
// The classification cannot be run if there is no body supplied
return(req.CreateResponse(System.Net.HttpStatusCode.BadRequest,
"The classification details were not correctly specified in the request body"));
}
}
public static async Task OnQueryClassificationHandler([EventGridTrigger] EventGridEvent eventGridEvent)
{
if (eventGridEvent != null)
{
// Get the data from the event that describes what classification is requested
ClassifierRequestedEventGridEventData classifierRequestData = eventGridEvent.Data as ClassifierRequestedEventGridEventData;
await ClassifierHandlerFunctions.RunClassificationForQuery(classifierRequestData);
}
}
public static async Task OnCommandClassificationHandler([EventGridTrigger] EventGridEvent eventGridEvent)
{
if (eventGridEvent != null)
{
// Get the data from the event that describes what classification is requested
ClassifierRequestedEventGridEventData classifierRequestData = eventGridEvent.Data.ToObjectFromJson <ClassifierRequestedEventGridEventData>();
await ClassifierHandlerFunctions.RunClassificationForCommand(classifierRequestData);
}
}
/// <summary>
/// A classification has been requested in processing a query.
/// This function will run it and attach the result back to the query
/// event stream when complete.
/// </summary>
public static async Task RunClassificationForQuery(
ClassifierRequestedEventGridEventData classifierRequestData)
{
if (classifierRequestData != null)
{
// handle the classifier request
ClassificationResponse response = null;
Classification classifier = new Classification(
new ClassificationAttribute(
classifierRequestData.ClassifierRequest.DomainName,
classifierRequestData.ClassifierRequest.EntityTypeName,
classifierRequestData.ClassifierRequest.InstanceKey,
classifierRequestData.ClassifierRequest.ClassifierTypeName
));
if (classifier != null)
{
if (_classificationMap == null)
{
_classificationMap = ClassificationMaps.CreateDefaultClassificationMaps();
}
// get the classifier class - must implement TClassification : IClassification, new()
IClassification classificationToRun = _classificationMap.CreateClassificationClass(classifier.ClassifierTypeName);
if (classificationToRun != null)
{
response = await classifier.Classify(classificationToRun, null);
}
}
if (response != null)
{
// and post the result back to the query that asked for it
Query qrySource = new Query(classifierRequestData.DomainName,
classifierRequestData.EntityTypeName,
classifierRequestData.InstanceKey);
if (qrySource != null)
{
await qrySource.PostClassifierResponse(classifierRequestData.ClassifierRequest.DomainName,
classifierRequestData.ClassifierRequest.EntityTypeName,
classifierRequestData.ClassifierRequest.InstanceKey,
classifierRequestData.ClassifierRequest.ClassifierTypeName,
response.AsOfDate,
classifierRequestData.ClassifierRequest.CorrelationIdentifier,
response.AsOfSequence,
response.Result
);
}
}
}
}
public static async Task OnQueryClassificationHandler([EventGridTrigger] EventGridEvent eventGridEvent)
{
if (eventGridEvent != null)
{
// Get the data from the event that describes what classification is requested
ClassifierRequestedEventGridEventData classifierRequestData = eventGridEvent.Data as ClassifierRequestedEventGridEventData;
if (classifierRequestData != null)
{
// handle the classifier request
ClassificationResponse response = null;
Classification classifier = new Classification(
new ClassificationAttribute(
classifierRequestData.ClassifierRequest.DomainName,
classifierRequestData.ClassifierRequest.EntityTypeName,
classifierRequestData.ClassifierRequest.InstanceKey,
classifierRequestData.ClassifierRequest.ClassifierTypeName
));
if (classifier != null)
{
// get the classifier class - must implement TClassification : IClassification, new()
IClassification classificationToRun = Classification.GetClassifierByName(classifier.ClassifierTypeName);
if (classificationToRun != null)
{
response = await classifier.Classify(classificationToRun, null);
}
}
if (response != null)
{
// and post the result back to the query that asked for it
Query qrySource = new Query(classifierRequestData.DomainName,
classifierRequestData.EntityTypeName,
classifierRequestData.InstanceKey);
if (qrySource != null)
{
await qrySource.PostClassifierResponse(classifierRequestData.ClassifierRequest.DomainName,
classifierRequestData.ClassifierRequest.EntityTypeName,
classifierRequestData.ClassifierRequest.InstanceKey,
classifierRequestData.ClassifierRequest.ClassifierTypeName,
response.AsOfDate,
classifierRequestData.ClassifierRequest.CorrelationIdentifier,
response.AsOfSequence,
response.Result
);
}
}
}
}
}
