private static void WriteFamily(StreamWriter streamWriter, MetricFamily metricFamily)
{
streamWriter.WriteLine("# HELP {0} {1}", metricFamily.name, metricFamily.help);
streamWriter.WriteLine("# TYPE {0} {1}", metricFamily.name, metricFamily.type);
foreach (var metric in metricFamily.metric)
{
WriteMetric(streamWriter, metricFamily, metric);
}
}
private static void WriteMetric(StreamWriter streamWriter, MetricFamily family, Metric metric)
{
var familyName = family.name;
if (metric.gauge!=null)
{
streamWriter.WriteLine(SimpleValue(familyName, metric.gauge.value, metric.label));
}
else if (metric.counter!=null)
{
streamWriter.WriteLine(SimpleValue(familyName, metric.counter.value, metric.label));
}
else if (metric.summary != null)
{
streamWriter.WriteLine(SimpleValue(familyName, metric.summary.sample_sum, metric.label, "_sum"));
streamWriter.WriteLine(SimpleValue(familyName, metric.summary.sample_count, metric.label, "_count"));
foreach (var quantileValuePair in metric.summary.quantile)
{
var quantile = double.IsPositiveInfinity(quantileValuePair.quantile) ? "+Inf" : quantileValuePair.quantile.ToString(CultureInfo.InvariantCulture);
streamWriter.WriteLine(SimpleValue(familyName, quantileValuePair.value, metric.label.Concat(new []{new LabelPair{name= "quantile", value = quantile}})));
}
}
else if (metric.histogram != null)
{
streamWriter.WriteLine(SimpleValue(familyName, metric.histogram.sample_sum, metric.label, "_sum"));
streamWriter.WriteLine(SimpleValue(familyName, metric.histogram.sample_count, metric.label, "_count"));
foreach (var bucket in metric.histogram.bucket)
{
var value = double.IsPositiveInfinity(bucket.upper_bound) ? "+Inf" : bucket.upper_bound.ToString(CultureInfo.InvariantCulture);
streamWriter.WriteLine(SimpleValue(familyName, bucket.cumulative_count, metric.label.Concat(new []{new LabelPair{name = "le", value = value}}), "_bucket"));
}
}
else
{
//not supported
}
}
