public Scope StartAspNetCorePipelineScope(Tracer tracer, HttpContext httpContext, HttpRequest request, string resourceName)
{
string host = request.Host.Value;
string httpMethod = request.Method?.ToUpperInvariant() ?? "UNKNOWN";
string url = request.GetUrl();
resourceName ??= GetDefaultResourceName(request);
SpanContext propagatedContext = ExtractPropagatedContext(request);
var tagsFromHeaders = ExtractHeaderTags(request, tracer);
AspNetCoreTags tags;
if (tracer.Settings.RouteTemplateResourceNamesEnabled)
{
var originalPath = request.PathBase.HasValue ? request.PathBase.Add(request.Path) : request.Path;
httpContext.Features.Set(new RequestTrackingFeature(originalPath));
tags = new AspNetCoreEndpointTags();
}
else
{
tags = new AspNetCoreTags();
}
var scope = tracer.StartActiveInternal(_requestInOperationName, propagatedContext, tags: tags);
scope.Span.DecorateWebServerSpan(resourceName, httpMethod, host, url, tags, tagsFromHeaders);
tags.SetAnalyticsSampleRate(_integrationId, tracer.Settings, enabledWithGlobalSetting: true);
tracer.TracerManager.Telemetry.IntegrationGeneratedSpan(_integrationId);
return(scope);
}
private void OnHostingHttpRequestInStart(object arg)
{
var tracer = _tracer ?? Tracer.Instance;
if (!tracer.Settings.IsIntegrationEnabled(IntegrationName))
{
return;
}
var httpContext = HttpRequestInStartHttpContextFetcher.Fetch <HttpContext>(arg);
HttpRequest request = httpContext.Request;
string host = request.Host.Value;
string httpMethod = request.Method?.ToUpperInvariant() ?? "UNKNOWN";
string url = GetUrl(request);
string absolutePath = request.Path.Value;
if (request.PathBase.HasValue)
{
absolutePath = request.PathBase.Value + absolutePath;
}
string resourceUrl = UriHelpers.GetRelativeUrl(absolutePath, tryRemoveIds: true)
.ToLowerInvariant();
string resourceName = $"{httpMethod} {resourceUrl}";
SpanContext propagatedContext = ExtractPropagatedContext(request);
var tagsFromHeaders = ExtractHeaderTags(request, tracer);
var tags = new AspNetCoreTags();
var scope = tracer.StartActiveWithTags(HttpRequestInOperationName, propagatedContext, tags: tags);
tags.InstrumentationName = ComponentName;
scope.Span.DecorateWebServerSpan(resourceName, httpMethod, host, url, tags, tagsFromHeaders);
// set analytics sample rate if enabled
var analyticsSampleRate = tracer.Settings.GetIntegrationAnalyticsSampleRate(IntegrationName, enabledWithGlobalSetting: true);
if (analyticsSampleRate != null)
{
tags.AnalyticsSampleRate = analyticsSampleRate;
}
}
