public void ContextOnEndRequest(object sender, EventArgs e)
{
var endRequestWork = Stopwatch.GetTimestamp();
var application = sender as HttpApplication;
if (application != null)
{
var context = GetContext(sender);
var response = GetResponse(sender);
if ("text/html".Equals(response.ContentType))
{
var data = context.Items[METRIX_REQUEST_DATA] as MetrixRequestData;
data.EndRequestWork = endRequestWork;
data.ResponseStatus = response.Status;
response.Flush();
data.OutputLength = CountingStream.Count;
data.EndRequest = Stopwatch.GetTimestamp();
MetrixRequestData.AddFrame(data);
SerializeData(application, data);
}
}
}
private void SerializeData(HttpApplication application, MetrixRequestData data)
{
// Write to HTML footer (TODO: make configurable)
GetResponse(application).Write(string.Format("<hr/><pre>{0}</pre><hr/>", data.Display.Replace("\n", "<br/>")));
// Write to console (TODO: make configurable)
System.Diagnostics.Debug.WriteLine("-----------------");
System.Diagnostics.Debug.WriteLine(data.Display);
System.Diagnostics.Debug.WriteLine("-----------------");
// TODO: Write to NLog (make configurable)
// TODO: Write to EventLog (make configurable)
// TODO: Write to Database (make configurable)
// TODO: Write to WebAPI (make configurable)
// ...
}
public static void AddFrame(MetrixRequestData data)
{
if (skipFrame)
{
// skip the "first run" frame times, they're artificially high
skipFrame = false;
MinimumMillis = long.MaxValue;
MaximumMillis = long.MinValue;
}
else
{
var elapsed = data.EndRequest - data.StartRequest;
MetrixRequestData.TotalMillis += elapsed;
MetrixRequestData.TotalFrames++;
MetrixRequestData.MinimumMillis = Math.Min(MetrixRequestData.MinimumMillis, elapsed);
MetrixRequestData.MaximumMillis = Math.Max(MetrixRequestData.MaximumMillis, elapsed);
}
}
public void ContextOnBeginRequest(object sender, EventArgs e)
{
var startRequest = Stopwatch.GetTimestamp();
var application = sender as HttpApplication;
if (application != null)
{
var data = new MetrixRequestData();
var request = GetRequest(sender);
var context = GetContext(sender);
var response = GetResponse(sender);
response.Filter = CountingStream = new CountingStream(response.Filter);
data.RequestGuid = Guid.NewGuid();
data.StartRequest = startRequest;
data.RawUrl = request.RawUrl;
context.Items[METRIX_REQUEST_DATA] = data;
data.StartRequestWork = Stopwatch.GetTimestamp();
}
}
