public object BeforeSendRequest(ref Message request, IClientChannel channel)
{
// get the request URI
var requestUri = GetRequestUri(request);
webRequestTracer = action.TraceWebRequest(requestUri);
webRequestTracer.Start();
// add Dynatrace custom header for tracing
object httpRequestMessageObject;
if (request.Properties.TryGetValue(HttpRequestMessageProperty.Name, out httpRequestMessageObject))
{
var httpRequestMessage = httpRequestMessageObject as HttpRequestMessageProperty;
if (string.IsNullOrWhiteSpace(httpRequestMessage.Headers[OpenKitConstants.WEBREQUEST_TAG_HEADER]))
{
httpRequestMessage.Headers[OpenKitConstants.WEBREQUEST_TAG_HEADER] = webRequestTracer.Tag;
}
}
else
{
// request properties does not contain request message properties - just for safety reasons
var httpRequestMessage = new HttpRequestMessageProperty();
httpRequestMessage.Headers.Add(OpenKitConstants.WEBREQUEST_TAG_HEADER, webRequestTracer.Tag);
request.Properties.Add(HttpRequestMessageProperty.Name, httpRequestMessage);
}
return(null);
}
public void AfterReceiveReply(ref Message reply, object correlationState)
{
if (webRequestTracer != null)
{
object httpResponseMessageObject;
// assume HTTP OK by default
int responseCode = (int)HttpStatusCode.OK;
if (reply.Properties.TryGetValue(HttpResponseMessageProperty.Name, out httpResponseMessageObject))
{
var httpResponseMessage = httpResponseMessageObject as HttpResponseMessageProperty;
responseCode = (int)httpResponseMessage.StatusCode;
}
webRequestTracer.Stop(responseCode);
webRequestTracer = null;
}
}
