public IList <MetricValue> Read()
{
lock (_lock)
{
var res = new List <MetricValue>();
var removeList = new List <string>();
foreach (var pair in _metrics)
{
StatsdMetric metric = pair.Value;
if (metric.NumUpdates <= 0 &&
((_delCounter && metric.Type == StatsdMetric.StatsdType.StatsdCounter) ||
(_delTimer && metric.Type == StatsdMetric.StatsdType.StatsdTimer) ||
(_delGauge && metric.Type == StatsdMetric.StatsdType.StatsdGauge) ||
(_delSet && metric.Type == StatsdMetric.StatsdType.StatsdSet)))
{
removeList.Add(pair.Key);
continue;
}
var metricVal = new MetricValue
{
HostName = _hostName,
PluginName = "statsd",
PluginInstanceName = "",
TypeInstanceName = metric.Name,
Values = new[] { metric.GetMetric() }
};
switch (metric.Type)
{
case StatsdMetric.StatsdType.StatsdGauge:
metricVal.TypeName = "gauge";
break;
case StatsdMetric.StatsdType.StatsdTimer:
metricVal.TypeName = "latency";
metricVal.TypeInstanceName += "-average";
break;
case StatsdMetric.StatsdType.StatsdSet:
metricVal.TypeName = "objects";
break;
default:
metricVal.TypeName = "derive";
break;
}
TimeSpan t = DateTime.UtcNow - new DateTime(1970, 1, 1);
double epoch = t.TotalMilliseconds / 1000;
metricVal.Epoch = Math.Round(epoch, 3);
res.Add(metricVal);
if (metric.Type == StatsdMetric.StatsdType.StatsdTimer)
{
if (_timerLower)
{
MetricValue lowerValue = metricVal.DeepCopy();
lowerValue.TypeInstanceName = metric.Name + "-lower";
lowerValue.Values[0] = metric.Lat.Min;
res.Add(lowerValue);
}
if (_timerUpper)
{
MetricValue upperValue = metricVal.DeepCopy();
upperValue.TypeInstanceName = metric.Name + "-upper";
upperValue.Values[0] = metric.Lat.Max;
res.Add(upperValue);
}
if (_timerSum)
{
MetricValue upperSum = metricVal.DeepCopy();
upperSum.TypeInstanceName = metric.Name + "-Sum";
upperSum.Values[0] = metric.Lat.Sum;
res.Add(upperSum);
}
if (_timerCount)
{
MetricValue upperCount = metricVal.DeepCopy();
upperCount.TypeInstanceName = metric.Name + "-count";
upperCount.Values[0] = metric.Lat.Num;
res.Add(upperCount);
}
Histogram histogram = metric.Lat.Histogram;
if (_percentiles != null && _percentiles.Length > 0 && histogram != null)
{
foreach (float percentile in _percentiles)
{
double val = histogram.GetPercentile(percentile);
MetricValue mv = metricVal.DeepCopy();
mv.TypeInstanceName = metric.Name + "-percentile-" + percentile;
mv.Values[0] = val;
res.Add(mv);
}
}
}
metric.Reset();
}
Logger.Debug("Removing entries that were not updated:{0}", removeList.Count);
foreach (string key in removeList)
{
_metrics.Remove(key);
}
return(res);
}
}
