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package detect
import (
"context"
"os"
"github.com/pkg/errors"
"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
sdkmetric "go.opentelemetry.io/otel/sdk/metric"
"go.opentelemetry.io/otel/sdk/metric/metricdata"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
)
var otlpExporter = otlpExporterDetector{}
func init() {
Register("otlp", otlpExporter, 10)
}
type otlpExporterDetector struct{}
func (otlpExporterDetector) DetectTraceExporter() (sdktrace.SpanExporter, error) {
set := os.Getenv("OTEL_TRACES_EXPORTER") == "otlp" || os.Getenv("OTEL_EXPORTER_OTLP_ENDPOINT") != "" || os.Getenv("OTEL_EXPORTER_OTLP_TRACES_ENDPOINT") != ""
if !set {
return nil, nil
}
proto := os.Getenv("OTEL_EXPORTER_OTLP_TRACES_PROTOCOL")
if proto == "" {
proto = os.Getenv("OTEL_EXPORTER_OTLP_PROTOCOL")
}
if proto == "" {
proto = "grpc"
}
var c otlptrace.Client
switch proto {
case "grpc":
c = otlptracegrpc.NewClient()
case "http/protobuf":
c = otlptracehttp.NewClient()
// case "http/json": // unsupported by library
default:
return nil, errors.Errorf("unsupported otlp protocol %v", proto)
}
return otlptrace.New(context.Background(), c)
}
func (otlpExporterDetector) DetectMetricExporter() (sdkmetric.Exporter, error) {
set := os.Getenv("OTEL_METRICS_EXPORTER") == "otlp" || os.Getenv("OTEL_EXPORTER_OTLP_ENDPOINT") != "" || os.Getenv("OTEL_EXPORTER_OTLP_METRICS_ENDPOINT") != ""
if !set {
return nil, nil
}
proto := os.Getenv("OTEL_EXPORTER_OTLP_METRICS_PROTOCOL")
if proto == "" {
proto = os.Getenv("OTEL_EXPORTER_OTLP_PROTOCOL")
}
if proto == "" {
proto = "grpc"
}
switch proto {
case "grpc":
return otlpmetricgrpc.New(context.Background(),
otlpmetricgrpc.WithTemporalitySelector(deltaTemporality),
)
case "http/protobuf":
return otlpmetrichttp.New(context.Background(),
otlpmetrichttp.WithTemporalitySelector(deltaTemporality),
)
// case "http/json": // unsupported by library
default:
return nil, errors.Errorf("unsupported otlp protocol %v", proto)
}
}
func deltaTemporality(_ sdkmetric.InstrumentKind) metricdata.Temporality {
return metricdata.DeltaTemporality
}
|
