public CounterMetric GetMetric(DateTime start, DateTime end, CounterMetricCategory category)
{
string key = CalculateHashKey(start, end, category);
if (!_metrics.ContainsKey(key))
{
_metrics[key] = new CounterMetric(start, end, category);
}
return _metrics[key];
}
public bool TryGetMetric(DateTime start, DateTime end, CounterMetricCategory category, out CounterMetric metric)
{
string key = CalculateHashKey(start, end, category);
return _metrics.TryGetValue(key, out metric);
}