public void EnrichWithRequest(Activity activity, HttpRequestHeaders requestHeaders)
{
foreach (var trackedHeader in this._config.TrackedRequestHeaders)
{
if (requestHeaders.TryGetHeaderAsString(trackedHeader, out var headerContent))
{
activity.SetTag(OpenTelemetryAttributes.GetAttributeHttpRequestHeader(trackedHeader),
headerContent);
}
}
}
public void OnStart(Activity activity, HttpWebRequest request)
{
foreach (var trackedHeader in this._config.TrackedRequestHeaders)
{
var headerContent = request.Headers.Get(trackedHeader);
if (headerContent != null)
{
activity.SetTag(OpenTelemetryAttributes.GetAttributeHttpRequestHeader(trackedHeader),
headerContent);
}
}
}
public void Enrich(Activity activity, string eventName, object rawObject)
{
if (eventName.Equals("OnStartActivity"))
{
if (!(rawObject is HttpWebRequest request))
{
return;
}
if (request.ContentLength > 0)
{
activity.SetTag(OpenTelemetryAttributes.GetAttributeHttpRequestHeader("content_length"),
request.ContentLength);
}
foreach (var enrichHook in this._enrichHooks)
{
enrichHook.OnStart(activity, request);
}
}
else if (eventName.Equals("OnStopActivity"))
{
if (!(rawObject is HttpWebResponse response))
{
return;
}
if (response.ContentLength > 0)
{
activity.SetTag(OpenTelemetryAttributes.GetAttributeHttpResponseHeader("content_length"),
response.ContentLength);
}
if (TracingUtils.IsErrorStatusCode((int)response.StatusCode))
{
activity.SetTag("error", "true");
}
foreach (var enrichHook in this._enrichHooks)
{
enrichHook.OnSuccessEnd(activity, response);
}
}
else if (eventName.Equals("OnException"))
{
if (!(rawObject is WebException ex))
{
return;
}
activity.SetTag("error", "true");
var statusCode = (ex.Response as HttpWebResponse)?.StatusCode;
if (statusCode == null)
{
activity.SetTag(OpenTelemetryAttributes.AttributeHttpStatusCode, "-");
activity.SetTag(OpenTelemetryAttributes.AttributeHttpClientException, ex.Status.ToString());
}
foreach (var enrichHook in this._enrichHooks)
{
enrichHook.OnError(activity, ex);
}
}
}
