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add doc comments

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Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
This commit is contained in:
Jeanette Tan 2024-07-03 17:56:48 +08:00 committed by György Krajcsovits
parent cbd5488cd3
commit 57bde06d2c
1 changed files with 16 additions and 2 deletions
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18
model/textparse/nhcbparse.go
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@ -29,23 +29,31 @@ import (
)
type NhcbParser struct {
parser Parser
// The parser we're wrapping.
parser Parser
// Option to keep classic histograms along with converted histograms.
keepClassicHistograms bool
// Caches the values from the underlying parser.
// For Series and Histogram.
bytes []byte
ts *int64
value float64
h *histogram.Histogram
fh *histogram.FloatHistogram
// For Metric.
lset labels.Labels
metricString string
buf []byte
// Collates values from the classic histogram series to build
// the converted histogram later.
lsetNhcb labels.Labels
tempNhcb convertnhcb.TempHistogram
// Remembers the last native histogram name so we can ignore
// conversions to NHCB when the name is the same.
lastNativeHistName string
}
@ -118,6 +126,10 @@ func (p *NhcbParser) Next() (Entry, error) {
return et, err
}
// handleClassicHistogramSeries collates the classic histogram series to be converted to NHCB
// if it is actually a classic histogram series (and not a normal float series) and if there
// isn't already a native histogram with the same name (assuming it is always processed
// right before the classic histograms) and returns true if the collation was done.
func (p *NhcbParser) handleClassicHistogramSeries(lset labels.Labels) bool {
mName := lset.Get(labels.MetricName)
if convertnhcb.GetHistogramMetricBaseName(mName) == p.lastNativeHistName {
@ -151,6 +163,8 @@ func (p *NhcbParser) processClassicHistogramSeries(lset labels.Labels, suffix st
updateHist(&p.tempNhcb)
}
// processNhcb converts the collated classic histogram series to NHCB and caches the info
// to be returned to callers.
func (p *NhcbParser) processNhcb(th convertnhcb.TempHistogram) bool {
if len(th.BucketCounts) == 0 {
return false