Microsoft.ApplicationInsights.DependencyCollector.Implementation.ProfilerHttpProcessing.OnEnd C# (CSharp) Method

        private void OnEnd(object exception, object thisObj, object returnValue)
        {
            try
            {
                if (thisObj == null)
                {
                    DependencyCollectorEventSource.Log.NotExpectedCallback(0, "OnBeginHttp", "thisObj == null");
                    return;
                }

                DependencyCollectorEventSource.Log.EndCallbackCalled(thisObj.GetHashCode().ToString(CultureInfo.InvariantCulture));

                Tuple<DependencyTelemetry, bool> telemetryTuple = this.TelemetryTable.Get(thisObj);

                if (telemetryTuple == null)
                {
                    DependencyCollectorEventSource.Log.EndCallbackWithNoBegin(thisObj.GetHashCode().ToString(CultureInfo.InvariantCulture));
                    return;
                }

                if (telemetryTuple.Item1 == null)
                {
                    DependencyCollectorEventSource.Log.EndCallbackWithNoBegin(thisObj.GetHashCode().ToString(CultureInfo.InvariantCulture));
                    return;
                }

                // Not custom created
                if (!telemetryTuple.Item2)
                {
                    this.TelemetryTable.Remove(thisObj);
                    DependencyTelemetry telemetry = telemetryTuple.Item1;

                    int statusCode = -1;

                    var responseObj = returnValue as HttpWebResponse;

                    if (responseObj == null && exception != null)
                    {
                        var webException = exception as WebException;

                        if (webException != null)
                        {
                            responseObj = webException.Response as HttpWebResponse;
                        }
            #if !NET40
                        if (responseObj == null)
                        {
                            var httpException = exception as HttpException;

                            if (httpException != null)
                            {
                                statusCode = httpException.GetHttpCode();
                            }
                        }
            #endif
                    }

                    if (responseObj != null)
                    {
                        try
                        {
                            statusCode = (int)responseObj.StatusCode;

                            if (responseObj.Headers != null)
                            {
                                var targetIkeyHash = responseObj.Headers[RequestResponseHeaders.TargetInstrumentationKeyHeader];
                                if (!string.IsNullOrEmpty(targetIkeyHash))
                                {
                                    telemetry.Type = RemoteDependencyConstants.AI;
                                    telemetry.Target += " | " + targetIkeyHash;
                                }
                            }
                        }
                        catch (ObjectDisposedException)
                        {
                            // ObjectDisposedException is expected here in the following sequence: httpWebRequest.GetResponse().Dispose() -> httpWebRequest.GetResponse()
                            // on the second call to GetResponse() we cannot determine the statusCode.
                        }
                    }

                    telemetry.ResultCode = statusCode > 0 ? statusCode.ToString(CultureInfo.InvariantCulture) : string.Empty;
                    telemetry.Success = (statusCode > 0) && (statusCode < 400);

                    ClientServerDependencyTracker.EndTracking(this.telemetryClient, telemetry);
                }
            }
            catch (Exception ex)
            {
                DependencyCollectorEventSource.Log.CallbackError(thisObj == null ? 0 : thisObj.GetHashCode(), "OnBeginHttp", ex);
            }
        }