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Add NewLazyMetricWithTimestamp() API to stability framework.

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This commit is contained in:
RainbowMango 2019-11-08 11:25:19 +08:00
parent 1016b8b58a
commit 2f7c9fcd26
1 changed files with 14 additions and 0 deletions
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14
staging/src/k8s.io/component-base/metrics/value.go
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@ -17,6 +17,8 @@ limitations under the License.
package metrics
import (
"time"
"github.com/prometheus/client_golang/prometheus"
)
@ -44,3 +46,15 @@ func NewLazyConstMetric(desc *Desc, valueType ValueType, value float64, labelVal
}
return prometheus.MustNewConstMetric(desc.toPrometheusDesc(), valueType.toPromValueType(), value, labelValues...)
}
// NewLazyMetricWithTimestamp is a helper of NewMetricWithTimestamp.
//
// Warning: the Metric 'm' must be the one created by NewLazyConstMetric(),
// otherwise, no stability guarantees would be offered.
func NewLazyMetricWithTimestamp(t time.Time, m Metric) Metric {
if m == nil {
return nil
}
return prometheus.NewMetricWithTimestamp(t, m)
}