/// <summary>
/// Handles the stopped streamers, disposes and removes them from the list of current steamers.
/// </summary>
/// <param name="sender">The streamer which raised this event.</param>
/// <param name="e">Generic event arguments, not used.</param>
private void Streamer_Stopped(object sender, AsyncCompletedEventArgs e)
{
lock (this.streamers)
{
HystrixMetricsStreamer streamer = (HystrixMetricsStreamer)sender;
streamer.Stopped -= this.Streamer_Stopped;
streamer.Dispose();
this.streamers.Remove(streamer);
if (this.streamers.Count == 0)
{
this.sampler.Stop();
}
}
}
/// <summary>
/// Creates and starts a new <see cref="HystrixMetricsStreamer"/> instance.
/// </summary>
/// <param name="context">The listener context passed through to the new streamer.</param>
private void CreateAndStartStreamer(HttpListenerContext context)
{
HystrixMetricsStreamer streamer = null;
try
{
streamer = new HystrixMetricsStreamer(this.sampler, context);
streamer.Stopped += this.Streamer_Stopped;
streamer.Start();
this.streamers.Add(streamer);
}
catch
{
if (streamer != null)
{
streamer.Dispose();
}
throw;
}
}
