forked from open-telemetry/opentelemetry-go
/
config.go
57 lines (48 loc) · 1.6 KB
/
config.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 metrictest // import "go.opentelemetry.io/otel/sdk/metric/metrictest"
import "go.opentelemetry.io/otel/sdk/metric/export/aggregation"
type config struct {
temporalitySelector aggregation.TemporalitySelector
}
func newConfig(opts ...Option) config {
cfg := config{
temporalitySelector: aggregation.CumulativeTemporalitySelector(),
}
for _, opt := range opts {
cfg = opt.apply(cfg)
}
return cfg
}
// Option allow for control of details of the TestMeterProvider created.
type Option interface {
apply(config) config
}
type functionOption func(config) config
func (f functionOption) apply(cfg config) config {
return f(cfg)
}
// WithTemporalitySelector allows for the use of either cumulative (default) or
// delta metrics.
// Warning the current SDK does not convert async instruments into delta
// temporality.
func WithTemporalitySelector(ts aggregation.TemporalitySelector) Option {
return functionOption(func(cfg config) config {
if ts == nil {
return cfg
}
cfg.temporalitySelector = ts
return cfg
})
}