forked from open-telemetry/opentelemetry-go
/
aggregator.go
37 lines (31 loc) · 1.32 KB
/
aggregator.go
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// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package internal // import "go.opentelemetry.io/otel/sdk/metric/internal"
import (
"time"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/sdk/metric/metricdata"
)
// now is used to return the current local time while allowing tests to
// override the the default time.Now function.
var now = time.Now
// Aggregator forms an aggregation from a collection of recorded measurements.
type Aggregator[N int64 | float64] interface {
// Aggregate records the measurement, scoped by attr, and aggregates it
// into an aggregation.
Aggregate(measurement N, attr attribute.Set)
// Aggregation returns an Aggregation, for all the aggregated
// measurements made and ends an aggregation cycle.
Aggregation() metricdata.Aggregation
}