mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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ffa94ca529
* improve test coverage, and don't send empty batches in OC bridge * Update bridge/opencensus/metric_test.go Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com> * remove 1.18 rule Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build go1.18
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// +build go1.18
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package opencensus // import "go.opentelemetry.io/otel/bridge/opencensus"
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import (
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"context"
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ocmetricdata "go.opencensus.io/metric/metricdata"
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"go.opencensus.io/metric/metricexport"
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"go.opentelemetry.io/otel"
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internal "go.opentelemetry.io/otel/bridge/opencensus/internal/ocmetric"
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"go.opentelemetry.io/otel/sdk/instrumentation"
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"go.opentelemetry.io/otel/sdk/metric"
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"go.opentelemetry.io/otel/sdk/metric/metricdata"
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"go.opentelemetry.io/otel/sdk/resource"
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)
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const scopeName = "go.opentelemetry.io/otel/bridge/opencensus"
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// exporter implements the OpenCensus metric Exporter interface using an
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// OpenTelemetry base exporter.
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type exporter struct {
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base metric.Exporter
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res *resource.Resource
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}
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// NewMetricExporter returns an OpenCensus exporter that exports to an
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// OpenTelemetry (push) exporter.
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func NewMetricExporter(base metric.Exporter, res *resource.Resource) metricexport.Exporter {
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return &exporter{base: base, res: res}
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}
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// ExportMetrics implements the OpenCensus metric Exporter interface by sending
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// to an OpenTelemetry exporter.
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func (e *exporter) ExportMetrics(ctx context.Context, ocmetrics []*ocmetricdata.Metric) error {
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otelmetrics, err := internal.ConvertMetrics(ocmetrics)
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if err != nil {
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otel.Handle(err)
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}
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if len(otelmetrics) == 0 {
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return nil
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}
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return e.base.Export(ctx, metricdata.ResourceMetrics{
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Resource: e.res,
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ScopeMetrics: []metricdata.ScopeMetrics{
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{
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Scope: instrumentation.Scope{
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Name: scopeName,
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},
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Metrics: otelmetrics,
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},
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}})
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}
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