/// <summary>
/// Method called before the action method starts processing
/// </summary>
/// <param name="filterContext">An ActionExecutingContext object</param>
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
// First thing is to check if performance is enabled globally. If not, return
if (ConfigInfo.Value.PerformanceEnabled == false)
{
return;
}
// Second thing, check if performance tracking has been turned off for this action
// If the DoNotTrackAttribute is present, then return
ActionDescriptor actionDescriptor = filterContext.ActionDescriptor;
if (actionDescriptor.GetCustomAttributes(typeof(DoNotTrackPerformanceAttribute), true).Length > 0 ||
actionDescriptor.ControllerDescriptor.GetCustomAttributes(typeof(DoNotTrackPerformanceAttribute), true).Length > 0)
{
return;
}
// ActionInfo encapsulates all the info about the action being invoked
ActionInfo info = this.CreateActionInfo(filterContext);
// PerformanceTracker is the object that tracks performance and is attached to the request
PerformanceTracker tracker = new PerformanceTracker(info);
// Store this on the request
String contextKey = this.GetUniqueContextKey(filterContext.ActionDescriptor.UniqueId);
HttpContext.Current.Items.Add(contextKey, tracker);
// Process the action start - this is what starts the timer and increments any
// required counters before the action executes
tracker.ProcessActionStart();
}
/// <summary>
/// Method that runs before the Web API action is invoked
/// </summary>
/// <param name="actionContext">An HttpActionContext with info about the action that is executing</param>
public override void OnActionExecuting(HttpActionContext actionContext)
{
// First thing is to check if performance is enabled globally
if (ConfigInfo.Value.PerformanceEnabled == false)
{
return;
}
// Second thing is to check if performance tracking has been turned off for this action
// If the DoNotTrackAttribute is present, then we set a flag not to track performance and return
HttpActionDescriptor actionDescriptor = actionContext.ActionDescriptor;
if (actionDescriptor.GetCustomAttributes <DoNotTrackPerformanceAttribute>().Count > 0 ||
actionDescriptor.ControllerDescriptor.GetCustomAttributes <DoNotTrackPerformanceAttribute>().Count > 0)
{
return;
}
// ActionInfo encapsulates all the info about the action being invoked
ActionInfo info = this.CreateActionInfo(actionContext);
// PerformanceTracker is the object that tracks performance and is attached to the request
PerformanceTracker tracker = new PerformanceTracker(info);
// Store this on the request
actionContext.Request.Properties.Add(this.GetType().FullName, tracker);
// Process the action start - this is what starts the timer and increments any
// required counters before the action executes
tracker.ProcessActionStart();
}
