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Add a public method to convert OpenCensus View to MetricDescriptor. #277

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Jan 20, 2021
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Add a public method to convert OpenCensus View to MetricDescriptor. #277

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9254941
Add a public method to convert OpenCensus View to MetricDescriptor.
yegle Nov 10, 2020
c0e9277
Merge branch 'master' into create-metric-descriptor-from-view
yegle Jan 20, 2021
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10 changes: 10 additions & 0 deletions stackdriver.go
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,7 @@ import (
"go.opencensus.io/trace"
"golang.org/x/oauth2/google"
"google.golang.org/api/option"
metricpb "google.golang.org/genproto/googleapis/api/metric"
monitoredrespb "google.golang.org/genproto/googleapis/api/monitoredres"

commonpb "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
Expand Down Expand Up @@ -469,6 +470,15 @@ func (e *Exporter) Flush() {
e.traceExporter.Flush()
}

// ViewToMetricDescriptor converts an OpenCensus view to a MetricDescriptor.
//
// This is useful for cases when you want to use your Go code as source of
// truth of metric descriptors. You can extract or define views in a central
// place, then call this method to generate MetricDescriptors.
func (e *Exporter) ViewToMetricDescriptor(ctx context.Context, v *view.View) (*metricpb.MetricDescriptor, error) {
return e.statsExporter.viewToMetricDescriptor(ctx, v)
}

func (o Options) handleError(err error) {
if o.OnError != nil {
o.OnError(err)
Expand Down