Files
fn-serverless/api/common/stats_utils.go
Tolga Ceylan 976b91a77d fn: API stats and tags reoorganization (#1171)
Make sure we can apply extra tags if RegisterAPIViews() is
provided with such tags. Deduplicate path/method/status and
always apply these default tags to appropriate views.
2018-08-11 17:00:37 -07:00

44 lines
1011 B
Go

package common
import (
"github.com/sirupsen/logrus"
"go.opencensus.io/stats"
"go.opencensus.io/stats/view"
"go.opencensus.io/tag"
)
func CreateView(measure stats.Measure, agg *view.Aggregation, tagKeys []string) *view.View {
keys := makeKeys(tagKeys)
return CreateViewWithTags(measure, agg, keys)
}
func CreateViewWithTags(measure stats.Measure, agg *view.Aggregation, tags []tag.Key) *view.View {
return &view.View{
Name: measure.Name(),
Description: measure.Description(),
Measure: measure,
TagKeys: tags,
Aggregation: agg,
}
}
func MakeMeasure(name string, desc string, unit string) *stats.Int64Measure {
return stats.Int64(name, desc, unit)
}
func MakeKey(name string) tag.Key {
key, err := tag.NewKey(name)
if err != nil {
logrus.WithError(err).Fatalf("Cannot create tag %s", name)
}
return key
}
func makeKeys(names []string) []tag.Key {
tagKeys := make([]tag.Key, len(names))
for i, name := range names {
tagKeys[i] = MakeKey(name)
}
return tagKeys
}