public async Task <AlertResolutionCheckResponse> CheckForResolutionAsync(
AlertResolutionCheckRequest alertResolutionCheckRequest, ITracer tracer, CancellationToken cancellationToken)
{
this.IsRunning = true;
Assert.AreEqual(new DateTime(1999, 12, 30, 7, 0, 0), alertResolutionCheckRequest.OriginalAnalysisRequestParameters.RequestTime);
this.AssertAnalysisRequestParameters(alertResolutionCheckRequest.OriginalAnalysisRequestParameters, assertRequestTime: false);
Assert.AreEqual(alertResolutionCheckRequest.OriginalAnalysisRequestParameters.TargetResources.Single(), alertResolutionCheckRequest.RequestParameters.ResourceIdentifier);
Assert.AreEqual(new DateTime(1985, 7, 3), alertResolutionCheckRequest.RequestParameters.AlertFireTime);
Assert.AreEqual(1, alertResolutionCheckRequest.RequestParameters.AlertPredicates.Count);
Assert.AreEqual("Predicate", alertResolutionCheckRequest.RequestParameters.AlertPredicates.Single().Key);
Assert.AreEqual("Predicate value", alertResolutionCheckRequest.RequestParameters.AlertPredicates.Single().Value);
await alertResolutionCheckRequest.StateRepository.StoreStateAsync("test auto resolve key", "test state", cancellationToken);
if (this.ShouldStuck)
{
try
{
await Task.Delay(int.MaxValue, cancellationToken);
}
catch (TaskCanceledException)
{
this.WasCanceled = true;
throw;
}
}
if (this.ShouldThrow)
{
throw new DivideByZeroException();
}
if (this.ShouldThrowCustom)
{
throw new CustomException();
}
return(this.ShouldResolve
? new AlertResolutionCheckResponse(true, null)
: new AlertResolutionCheckResponse(false, new AlertResolutionParameters {
CheckForResolutionAfter = TimeSpan.FromMinutes(15)
}));
}
/// <summary>
/// Runs the Smart Detector's resolution check flow.
/// </summary>
/// <param name="request">The alert resolution check request.</param>
/// <param name="smartDetector">The Smart Detector to run</param>
/// <param name="smartDetectorManifest">The Smart Detector's manifest</param>
/// <param name="detectorTracer">The tracer to provider for the Smart Detector</param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>A <see cref="Task{TResult}"/>, returning the resolution check response generated by the Smart Detector.</returns>
private async Task <ContractsAlertResolutionCheckResponse> CheckAlertResolutionAsync(
ContractsAlertResolutionCheckRequest request,
ISmartDetector smartDetector,
SmartDetectorManifest smartDetectorManifest,
ITracer detectorTracer,
CancellationToken cancellationToken)
{
// Check that the detector supports resolution
if (!(smartDetector is IResolvableAlertSmartDetector resolvableAlertSmartDetector))
{
throw new ResolutionCheckNotSupportedException($"Smart Detector {smartDetectorManifest.Name} does not support alert resolution of alerts");
}
// Create state repository
IStateRepository stateRepository = this.stateRepositoryFactory.Create(request.OriginalAnalysisRequest.SmartDetectorId, request.OriginalAnalysisRequest.AlertRuleResourceId);
// Load the resolution state from the repository
ResolutionState resolutionState = await stateRepository.GetStateAsync <ResolutionState>(GetResolutionStateKey(request.AlertCorrelationHash), cancellationToken);
if (resolutionState == null)
{
throw new ResolutionStateNotFoundException($"Resolution state for Alert with correlation {request.AlertCorrelationHash} was not found");
}
// Create the input for the Smart Detector
AnalysisRequestParameters analysisRequestParameters = await this.CreateAnalysisRequestParametersAsync(
resolutionState.AnalysisRequestTime,
request.OriginalAnalysisRequest,
smartDetectorManifest,
false,
cancellationToken);
var alertResolutionCheckRequest = new AlertResolutionCheckRequest(
analysisRequestParameters,
new AlertResolutionCheckRequestParameters(ResourceIdentifier.CreateFromResourceId(request.TargetResource), request.AlertFireTime, resolutionState.AlertPredicates),
this.analysisServicesFactory,
stateRepository);
// Run the Smart Detector
this.tracer.TraceInformation($"Started running Smart Detector ID {smartDetectorManifest.Id}, Name {smartDetectorManifest.Name} for resolution check");
try
{
AlertResolutionCheckResponse alertResolutionCheckResponse = await resolvableAlertSmartDetector.CheckForResolutionAsync(alertResolutionCheckRequest, detectorTracer, cancellationToken);
this.tracer.TraceInformation($"Completed running Smart Detector ID {smartDetectorManifest.Id}, Name {smartDetectorManifest.Name} for resolution check");
// If the alert is resolved - delete the state
if (alertResolutionCheckResponse.ShouldBeResolved)
{
await stateRepository.DeleteStateAsync(GetResolutionStateKey(request.AlertCorrelationHash), cancellationToken);
}
// Convert the result
return(new ContractsAlertResolutionCheckResponse
{
ShouldBeResolved = alertResolutionCheckResponse.ShouldBeResolved,
ResolutionParameters = alertResolutionCheckResponse.AlertResolutionParameters?.CreateContractsResolutionParameters()
});
}
catch (Exception e)
{
this.tracer.TraceError($"Failed running Smart Detector ID {smartDetectorManifest.Id}, Name {smartDetectorManifest.Name} for resolution check: {e}");
throw new FailedToRunSmartDetectorException($"Calling Smart Detector '{smartDetectorManifest.Name}' for resolution check failed with exception of type {e.GetType()} and message: {e.Message}", e);
}
}
