public ProcessOrSingleTimeWindowServiceProfiler(IAmbientServiceProfiler metrics, string scopeName, Regex?systemGroupTransform)
{
_profiler = metrics;
_scopeName = scopeName;
_systemToGroupTransform = systemGroupTransform;
_accumulatorsByGroup = new ConcurrentDictionary <string, AmbientServiceProfilerAccumulator>();
_activeGroupByCallContext = new ConcurrentDictionary <object, CallContextActiveSystemData>();
_callContextKey = new AsyncLocal <object>();
_profiler.RegisterSystemSwitchedNotificationSink(this);
}
private ProcessOrSingleTimeWindowServiceProfiler?Rotate(IAmbientServiceProfiler metrics, TimeSpan windowPeriod, Regex?systemGroupTransform)
{
string windowName = WindowScope.WindowId(AmbientClock.UtcNow, windowPeriod);
string newAccumulatorScopeName = _scopeNamePrefix + windowName + "(" + WindowScope.WindowSize(windowPeriod) + ")";;
ProcessOrSingleTimeWindowServiceProfiler newAccumulator = new ProcessOrSingleTimeWindowServiceProfiler(metrics, newAccumulatorScopeName, systemGroupTransform);
ProcessOrSingleTimeWindowServiceProfiler?oldAccumulator = System.Threading.Interlocked.Exchange(ref _timeWindowCallContextCollector, newAccumulator);
if (oldAccumulator != null)
{
// close out the old accumulator
oldAccumulator.CloseSampling();
}
return(oldAccumulator);
}
/// <summary>
/// Constructs a TimeWindowProcessingDistributionTracker.
/// </summary>
/// <param name="metrics">A <see cref="IAmbientServiceProfiler"/> to hook into to receive processor change events.</param>
/// <param name="scopeNamePrefix">A <see cref="TimeSpan"/> indicating the size of the window.</param>
/// <param name="windowPeriod">A <see cref="TimeSpan"/> indicating how often reports are desired.</param>
/// <param name="onWindowComplete">An async delegate that receives a <see cref="IAmbientServiceProfile"/> at the end of each time window.</param>
/// <param name="systemGroupTransform">A <see cref="Regex"/> string to transform the system into a system group.</param>
public TimeWindowServiceProfiler(IAmbientServiceProfiler metrics, string scopeNamePrefix, TimeSpan windowPeriod, Func <IAmbientServiceProfile, Task> onWindowComplete, Regex?systemGroupTransform)
{
if (onWindowComplete == null)
{
throw new ArgumentNullException(nameof(onWindowComplete), "Time Window Collection is pointless without a completion delegate!");
}
_scopeNamePrefix = scopeNamePrefix;
using (Rotate(metrics, windowPeriod, systemGroupTransform)) { }
_timeWindowRotator = new AmbientEventTimer(windowPeriod);
_timeWindowRotator.Elapsed +=
(sender, handler) =>
{
ProcessOrSingleTimeWindowServiceProfiler?oldAccumulator = Rotate(metrics, windowPeriod, systemGroupTransform);
if (oldAccumulator != null)
{
Task t = onWindowComplete(oldAccumulator);
t.Wait();
}
};
_timeWindowRotator.AutoReset = true;
_timeWindowRotator.Enabled = true;
}
