Open Telemetry minor fix

pkg/tools/jaeger/exporter.go

@@ -26,11 +26,12 @@ import (
 	"go.opentelemetry.io/otel/sdk/trace"
 
 	"github.com/networkservicemesh/sdk/pkg/tools/log"
+	"github.com/networkservicemesh/sdk/pkg/tools/opentelemetry"
 )
 
 // InitExporter -  returns an instance of Jaeger Exporter.
 func InitExporter(ctx context.Context, exporterURL string) trace.SpanExporter {
-	if !log.IsOpentelemetryEnabled() {
+	if !opentelemetry.IsEnabled() {
 		return nil
 	}
 

pkg/tools/log/logger.go

@@ -19,34 +19,15 @@ package log
 
 import (
 	"context"
-	"os"
 	"sync/atomic"
 )
 
 type contextKeyType string
 
 const (
 	logKey contextKeyType = "Logger"
-
-	telemetryEnv  = "TELEMETRY"
-	telemetryOTel = "enabled"
-
-	telemetryDefault = telemetryOTel
 )
 
-// IsOpentelemetryEnabled returns true if opentelemetry enabled
-func IsOpentelemetryEnabled() bool {
-	return telemetryOTel == getTelemetryEnv()
-}
-
-func getTelemetryEnv() string {
-	val := os.Getenv(telemetryEnv)
-	if val == "" {
-		return telemetryDefault
-	}
-	return val
-}
-
 var (
 	isTracingEnabled int32 = 0
 )

pkg/tools/log/spanlogger/spanlogger.go

@@ -24,6 +24,7 @@ import (
 	"sync"
 
 	"github.com/networkservicemesh/sdk/pkg/tools/log"
+	"github.com/networkservicemesh/sdk/pkg/tools/opentelemetry"
 )
 
 // spanlogger - provides a way to log via opentelemetry spans
@@ -129,7 +130,7 @@ func (s *spanLogger) logf(level, format string, v ...interface{}) {
 // FromContext - creates a new spanLogger from context and operation
 func FromContext(ctx context.Context, operation string, fields map[string]interface{}) (context.Context, log.Logger, Span, func()) {
 	var span Span
-	if log.IsOpentelemetryEnabled() {
+	if opentelemetry.IsEnabled() {
 		ctx, span = newOTELSpan(ctx, operation, fields)
 	}
 	newLog := &spanLogger{

pkg/tools/opentelemetry/exporter.go

@@ -32,7 +32,7 @@ import (
 
 // InitSpanExporter - returns an instance of OpenTelemetry Span Exporter.
 func InitSpanExporter(ctx context.Context, exporterURL string) trace.SpanExporter {
-	if !log.IsOpentelemetryEnabled() {
+	if !IsEnabled() {
 		return nil
 	}
 
@@ -52,7 +52,7 @@ func InitSpanExporter(ctx context.Context, exporterURL string) trace.SpanExporte
 
 // InitMetricExporter - returns an instance of OpenTelemetry Metric Exporter.
 func InitMetricExporter(ctx context.Context, exporterURL string) *otlpmetric.Exporter {
-	if !log.IsOpentelemetryEnabled() {
+	if !IsEnabled() {
 		return nil
 	}
 

pkg/tools/opentelemetry/opentelemetry.go

@@ -20,6 +20,8 @@ package opentelemetry
 import (
 	"context"
 	"io"
+	"os"
+	"strconv"
 	"time"
 
 	"go.opentelemetry.io/otel"
@@ -35,6 +37,18 @@ import (
 	"github.com/networkservicemesh/sdk/pkg/tools/log"
 )
 
+const (
+	telemetryEnv = "TELEMETRY"
+)
+
+// IsEnabled returns true if opentelemetry enabled
+func IsEnabled() bool {
+	if v, err := strconv.ParseBool(os.Getenv(telemetryEnv)); err == nil {
+		return v
+	}
+	return false
+}
+
 type opentelemetry struct {
 	io.Closer
 
@@ -70,7 +84,7 @@ func Init(ctx context.Context, spanExporter sdktrace.SpanExporter, metricExporte
 	o := &opentelemetry{
 		ctx: ctx,
 	}
-	if !log.IsOpentelemetryEnabled() {
+	if !IsEnabled() {
 		return o
 	}
 

pkg/tools/tracing/grpcoptions.go

@@ -27,12 +27,12 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/protobuf/proto"
 
-	"github.com/networkservicemesh/sdk/pkg/tools/log"
+	"github.com/networkservicemesh/sdk/pkg/tools/opentelemetry"
 )
 
 // WithTracing - returns array of grpc.ServerOption that should be passed to grpc.Dial to enable opentelemetry tracing
 func WithTracing() []grpc.ServerOption {
-	if log.IsOpentelemetryEnabled() {
+	if opentelemetry.IsEnabled() {
 		interceptor := func(
 			ctx context.Context,
 			req interface{},
@@ -55,7 +55,7 @@ func WithTracing() []grpc.ServerOption {
 
 // WithTracingDial returns array of grpc.DialOption that should be passed to grpc.Dial to enable opentelemetry tracing
 func WithTracingDial() []grpc.DialOption {
-	if log.IsOpentelemetryEnabled() {
+	if opentelemetry.IsEnabled() {
 		interceptor := func(
 			ctx context.Context,
 			method string,

pkg/tools/zipkin/exporter.go

@@ -26,11 +26,12 @@ import (
 	"go.opentelemetry.io/otel/sdk/trace"
 
 	"github.com/networkservicemesh/sdk/pkg/tools/log"
+	"github.com/networkservicemesh/sdk/pkg/tools/opentelemetry"
 )
 
 // InitExporter -  returns an instance of Zipkin Exporter.
 func InitExporter(ctx context.Context, exporterURL string) trace.SpanExporter {
-	if !log.IsOpentelemetryEnabled() {
+	if !opentelemetry.IsEnabled() {
 		return nil
 	}