private async Task <Guid?> TrainAsync(AnomalyDetectorClient client, string datasource, DateTimeOffset start_time, DateTimeOffset end_time, int max_tryout = 500)
{
try
{
Console.WriteLine("Training new model...");
int model_number = await GetModelNumberAsync(client, false).ConfigureAwait(false);
Console.WriteLine(String.Format("{0} available models before training.", model_number));
ModelInfo data_feed = new ModelInfo(datasource, start_time, end_time);
Response response_header = client.TrainMultivariateModel(data_feed);
response_header.Headers.TryGetValue("Location", out string trained_model_id_path);
Guid trained_model_id = Guid.Parse(trained_model_id_path.Split('/').LastOrDefault());
Console.WriteLine(trained_model_id);
// Wait until the model is ready. It usually takes several minutes
Response <Model> get_response = await client.GetMultivariateModelAsync(trained_model_id).ConfigureAwait(false);
ModelStatus?model_status = null;
int tryout_count = 0;
while (tryout_count < max_tryout & model_status != ModelStatus.Ready)
{
System.Threading.Thread.Sleep(10000);
get_response = await client.GetMultivariateModelAsync(trained_model_id).ConfigureAwait(false);
ModelInfo model_info = get_response.Value.ModelInfo;
Console.WriteLine(String.Format("model_id: {0}, createdTime: {1}, lastUpdateTime: {2}, status: {3}.", get_response.Value.ModelId, get_response.Value.CreatedTime, get_response.Value.LastUpdatedTime, model_info.Status));
if (model_info != null)
{
model_status = model_info.Status;
}
tryout_count += 1;
}
;
get_response = await client.GetMultivariateModelAsync(trained_model_id).ConfigureAwait(false);
if (model_status != ModelStatus.Ready)
{
Console.WriteLine(String.Format("Request timeout after {0} tryouts", max_tryout));
}
model_number = await GetModelNumberAsync(client).ConfigureAwait(false);
Console.WriteLine(String.Format("{0} available models after training.", model_number));
return(trained_model_id);
}
catch (Exception e)
{
Console.WriteLine(String.Format("Train error. {0}", e.Message));
throw;
}
}
private async Task <Guid?> trainAsync(AnomalyDetectorClient client, string datasource, DateTimeOffset start_time, DateTimeOffset end_time)
{
try
{
Console.WriteLine("Training new model...");
int model_number = await getModelNumberAsync(client, false).ConfigureAwait(false);
Console.WriteLine(String.Format("{0} available models before training.", model_number));
ModelInfo data_feed = new ModelInfo(datasource, start_time, end_time);
Response response_header = client.TrainMultivariateModel(data_feed);
response_header.Headers.TryGetValue("Location", out string trained_model_id_path);
Guid trained_model_id = Guid.Parse(trained_model_id_path.Split('/').LastOrDefault());
Console.WriteLine(trained_model_id);
// Wait until the model is ready. It usually takes several minutes
Response <Model> get_response = await client.GetMultivariateModelAsync(trained_model_id).ConfigureAwait(false);
while (get_response.Value.ModelInfo.Status != ModelStatus.Ready & get_response.Value.ModelInfo.Status != ModelStatus.Failed)
{
System.Threading.Thread.Sleep(10000);
get_response = await client.GetMultivariateModelAsync(trained_model_id).ConfigureAwait(false);
Console.WriteLine(String.Format("model_id: {0}, createdTime: {1}, lastUpdateTime: {2}, status: {3}.", get_response.Value.ModelId, get_response.Value.CreatedTime, get_response.Value.LastUpdatedTime, get_response.Value.ModelInfo.Status));
}
if (get_response.Value.ModelInfo.Status != ModelStatus.Ready)
{
Console.WriteLine(String.Format("Trainig failed."));
IReadOnlyList <ErrorResponse> errors = get_response.Value.ModelInfo.Errors;
foreach (ErrorResponse error in errors)
{
Console.WriteLine(String.Format("Error code: {0}.", error.Code));
Console.WriteLine(String.Format("Error message: {0}.", error.Message));
}
throw new Exception("Training failed.");
}
model_number = await getModelNumberAsync(client).ConfigureAwait(false);
Console.WriteLine(String.Format("{0} available models after training.", model_number));
return(trained_model_id);
}
catch (Exception e)
{
Console.WriteLine(String.Format("Train error. {0}", e.Message));
throw new Exception(e.Message);
}
}
private async Task <DetectionResult> detectAsync(AnomalyDetectorClient client, string datasource, Guid model_id, DateTimeOffset start_time, DateTimeOffset end_time)
{
try
{
Console.WriteLine("Start detect...");
Response <Model> get_response = await client.GetMultivariateModelAsync(model_id).ConfigureAwait(false);
DetectionRequest detectionRequest = new DetectionRequest(datasource, start_time, end_time);
Response result_response = await client.DetectAnomalyAsync(model_id, detectionRequest).ConfigureAwait(false);
var ok = result_response.Headers.TryGetValue("Location", out string result_id_path);
Guid result_id = Guid.Parse(result_id_path.Split('/').LastOrDefault());
// get detection result
Response <DetectionResult> result = await client.GetDetectionResultAsync(result_id).ConfigureAwait(false);
while (result.Value.Summary.Status != DetectionStatus.Ready & result.Value.Summary.Status != DetectionStatus.Failed)
{
System.Threading.Thread.Sleep(2000);
result = await client.GetDetectionResultAsync(result_id).ConfigureAwait(false);
}
if (result.Value.Summary.Status != DetectionStatus.Ready)
{
Console.WriteLine(String.Format("Inference failed."));
IReadOnlyList <ErrorResponse> errors = result.Value.Summary.Errors;
foreach (ErrorResponse error in errors)
{
Console.WriteLine(String.Format("Error code: {0}.", error.Code));
Console.WriteLine(String.Format("Error message: {0}.", error.Message));
}
return(null);
}
return(result.Value);
}
catch (Exception e)
{
Console.WriteLine(String.Format("Detection error. {0}", e.Message));
throw new Exception(e.Message);
}
}
private async Task <DetectionResult> DetectAsync(AnomalyDetectorClient client, string datasource, Guid model_id, DateTimeOffset start_time, DateTimeOffset end_time, int max_tryout = 500)
{
try
{
Console.WriteLine("Start detect...");
Response <Model> get_response = await client.GetMultivariateModelAsync(model_id).ConfigureAwait(false);
DetectionRequest detectionRequest = new DetectionRequest(datasource, start_time, end_time);
Response result_response = await client.DetectAnomalyAsync(model_id, detectionRequest).ConfigureAwait(false);
var ok = result_response.Headers.TryGetValue("Location", out string result_id_path);
Guid result_id = Guid.Parse(result_id_path.Split('/').LastOrDefault());
// get detection result
Response <DetectionResult> result = await client.GetDetectionResultAsync(result_id).ConfigureAwait(false);
int tryout_count = 0;
while (result.Value.Summary.Status != DetectionStatus.Ready & tryout_count < max_tryout)
{
System.Threading.Thread.Sleep(2000);
result = await client.GetDetectionResultAsync(result_id).ConfigureAwait(false);
tryout_count += 1;
}
if (result.Value.Summary.Status != DetectionStatus.Ready)
{
Console.WriteLine(String.Format("Request timeout after {0} tryouts", max_tryout));
return(null);
}
return(result.Value);
}
catch (Exception e)
{
Console.WriteLine(String.Format("Detection error. {0}", e.Message));
throw;
}
}