public static AndetDataCollection GetAppInsightsPrivateBytesTelemetry(ILogger log)
{
var result = new AndetDataCollection
{
Granularity = "minutely"
};
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Add("x-api-key", AzureAiApiKey);
HttpResponseMessage response = client.GetAsync(GenerateAppInsightsPrivateBytesQuery()).Result;
if (!response.IsSuccessStatusCode)
{
log.LogError($"Error when getting telemetry data from App Insights: {response.Content.ReadAsStringAsync().Result}");
return(result);
}
var intermediateResult = JsonConvert.DeserializeObject <TablesResult>(response.Content.ReadAsStringAsync().Result);
var rows = intermediateResult.Tables.First();
result.Series = rows.Rows.Select(i => new PerfCounterRow()
{
Timestamp = DateTime.Parse(i[0]), Value = (long)double.Parse(i[1])
}).OrderBy(i => i.Timestamp).ToList();
return(result);
}
private static IEnumerable <PerfCounterRow> GetAnomalyPerfCountersRows(AndetDataCollection dataCollection, ILogger log)
{
var result = new List <PerfCounterRow>();
var json = JsonConvert.SerializeObject(dataCollection, Formatting.None, new JsonSerializerSettings
{
DateTimeZoneHandling = DateTimeZoneHandling.Utc,
DateFormatString = "s"
});
log.LogInformation($"ApplicationInsights. JSON prepared for Anomaly Detection: \n\r {json}");
//send perf counters to Anomaly Detection
var anomalyDetectionResult = DetectAnomaliesBatch(json);
//var anomalyDetectionResult = DetectAnomaliesLatest(json);
if (anomalyDetectionResult.Contains("ErrorCode:"))
{
log.LogError(anomalyDetectionResult);
return(result);
}
var intermediateResult = JsonConvert.DeserializeObject <AndetResponseData>(anomalyDetectionResult);
// selecting indexes of all anomaly rows
int[] anomalyRowsIndexes = intermediateResult.IsAnomaly.Select((value, index) => new { value, index })
.Where(t => t.value)
.Select(t => t.index)
.ToArray();
result = anomalyRowsIndexes.Select(i => new PerfCounterRow()
{
Timestamp = dataCollection.Series[i].Timestamp, Value = dataCollection.Series[i].Value
}).ToList();
return(result);
}
