private void Application_EndRequest(object sender, EventArgs e)
{
AspNetTelemetryCorrelationEventSource.Log.TraceCallback("Application_EndRequest");
var context = ((HttpApplication)sender).Context;
// EndRequest does it's best effort to notify that request has ended
// BeginRequest has never been called
if (!context.Items.Contains(BeginCalledFlag))
{
// Activity has never been started
var activity = ActivityHelper.CreateRootActivity(context);
ActivityHelper.StopAspNetActivity(activity, context);
}
else
{
var activity = (Activity)context.Items[ActivityHelper.ActivityKey];
// try to stop activity if it's in the Current stack
if (!ActivityHelper.StopAspNetActivity(activity, context))
{
// Activity we created was lost, let's report it
if (activity != null)
{
ActivityHelper.StopLostActivity(activity, context);
}
}
}
}
private void Application_EndRequest(object sender, EventArgs e)
{
AspNetTelemetryCorrelationEventSource.Log.TraceCallback("Application_EndRequest");
bool trackActivity = true;
var context = ((HttpApplication)sender).Context;
// EndRequest does it's best effort to notify that request has ended
// BeginRequest has never been called
if (!context.Items.Contains(BeginCalledFlag))
{
// Rewrite: In case of rewrite, a new request context is created, called the child request, and it goes through the entire IIS/ASP.NET integrated pipeline.
// The child request can be mapped to any of the handlers configured in IIS, and it's execution is no different than it would be if it was received via the HTTP stack.
// The parent request jumps ahead in the pipeline to the end request notification, and waits for the child request to complete.
// When the child request completes, the parent request executes the end request notifications and completes itself.
// Do not create activity for parent request. Parent request has IIS_UrlRewriteModule ServerVariable with success response code.
// Child request contains an additional ServerVariable named - IIS_WasUrlRewritten.
// Track failed response activity: Different modules in the pipleline has ability to end the response. For example, authentication module could set HTTP 401 in OnBeginRequest and end the response.
if (context.Request.ServerVariables != null && context.Request.ServerVariables[URLRewriteRewrittenRequest] == null && context.Request.ServerVariables[URLRewriteModuleVersion] != null && context.Response.StatusCode == 200)
{
trackActivity = false;
}
else
{
// Activity has never been started
ActivityHelper.CreateRootActivity(context, ParseHeaders);
}
}
if (trackActivity)
{
ActivityHelper.StopAspNetActivity(context.Items);
}
}
private void Application_BeginRequest(object sender, EventArgs e)
{
var context = ((HttpApplication)sender).Context;
AspNetTelemetryCorrelationEventSource.Log.TraceCallback("Application_BeginRequest");
ActivityHelper.CreateRootActivity(context);
context.Items[BeginCalledFlag] = true;
}
private void Application_EndRequest(object sender, EventArgs e)
{
AspNetTelemetryCorrelationEventSource.Log.TraceCallback("Application_EndRequest");
var context = ((HttpApplication)sender).Context;
// EndRequest does it's best effort to notify that request has ended
// BeginRequest has never been called
if (!context.Items.Contains(BeginCalledFlag))
{
// Activity has never been started
ActivityHelper.CreateRootActivity(context, ParseHeaders);
}
ActivityHelper.StopAspNetActivity(context.Items);
}
private void Application_EndRequest(object sender, EventArgs e)
{
AspNetTelemetryCorrelationEventSource.Log.TraceCallback("Application_EndRequest");
var context = ((HttpApplication)sender).Context;
// EndRequest does it's best effort to notify that request has ended
// BeginRequest has never been called
if (!context.Items.Contains(BeginCalledFlag))
{
// Activity has never been started
var activity = ActivityHelper.CreateRootActivity(context, ParseHeaders);
ActivityHelper.StopAspNetActivity(activity, context.Items);
}
else
{
var activity = (Activity)context.Items[ActivityHelper.ActivityKey];
// try to stop activity if it's in the Current stack
// stop all running Activities on the way
if (!ActivityHelper.StopAspNetActivity(activity, context.Items))
{
// perhaps we attempted to restore the Activity before
var restoredActivity = (Activity)context.Items[ActivityHelper.RestoredActivityKey];
if (restoredActivity != null)
{
// if so, report it
ActivityHelper.StopRestoredActivity(restoredActivity, context);
}
// Activity we created was lost let's report it
if (activity != null)
{
ActivityHelper.StopLostActivity(activity, context);
}
}
}
}