public FanoutMetric GetMetric(string key)
{
FanoutMetric metric;
if (!metrics.TryGetValue(key, out metric))
{
metric = new FanoutMetric();
lock (this)
{
listeners.Each(l => metric.AddFanout(l.Key.GetMetric(key)));
}
metric = metrics.AddOrUpdate(key, metric, (k, m) => metric);
}
return(metric);
}
private static FanoutMetric AddFanout(FanoutMetric metric, long i)
{
metric.Add(i);
return(metric);
}