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opentelemetry-go/exporters/otlp/otlpmetric/internal/otlpmetrictest/collector.go
Pablo Baeyens 19294aab4c
Add vanity imports to internal packages (#2280)
* `porto -w --include-internal .`

* Bump `porto` to 0.4.0 and include internal files

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2021-10-29 09:34:37 -07:00

56 lines
1.9 KiB
Go

// 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 otlpmetrictest // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/internal/otlpmetrictest"
import (
collectormetricpb "go.opentelemetry.io/proto/otlp/collector/metrics/v1"
metricpb "go.opentelemetry.io/proto/otlp/metrics/v1"
)
// Collector is an interface that mock collectors should implements,
// so they can be used for the end-to-end testing.
type Collector interface {
Stop() error
GetMetrics() []*metricpb.Metric
}
// MetricsStorage stores the metrics. Mock collectors could use it to
// store metrics they have received.
type MetricsStorage struct {
metrics []*metricpb.Metric
}
// NewMetricsStorage creates a new metrics storage.
func NewMetricsStorage() MetricsStorage {
return MetricsStorage{}
}
// AddMetrics adds metrics to the metrics storage.
func (s *MetricsStorage) AddMetrics(request *collectormetricpb.ExportMetricsServiceRequest) {
for _, rm := range request.GetResourceMetrics() {
// TODO (rghetia) handle multiple resource and library info.
if len(rm.InstrumentationLibraryMetrics) > 0 {
s.metrics = append(s.metrics, rm.InstrumentationLibraryMetrics[0].Metrics...)
}
}
}
// GetMetrics returns the stored metrics.
func (s *MetricsStorage) GetMetrics() []*metricpb.Metric {
// copy in order to not change.
m := make([]*metricpb.Metric, 0, len(s.metrics))
return append(m, s.metrics...)
}