feat kafka

db/kafka/consumer.go

@@ -10,7 +10,6 @@ import (
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	otelcodes "go.opentelemetry.io/otel/codes"
-	"go.opentelemetry.io/otel/propagation"
 	"go.opentelemetry.io/otel/trace"
 	"time"
 )
@@ -63,11 +62,7 @@ func (h *handler) Cleanup(sess sarama.ConsumerGroupSession) error {
 
 func (h *handler) ConsumeClaim(sess sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {
 	for message := range claim.Messages() {
-		carrier := propagation.MapCarrier{}
-		for _, header := range message.Headers {
-			carrier[string(header.Key)] = string(header.Value)
-		}
-		ctx := otel.GetTextMapPropagator().Extract(context.Background(), carrier)
+		ctx := NewCarrier().ExtractConsumer(message.Headers)
 		_, span := otel.Tracer(client.serverName).Start(ctx, "kafka.consume")
 		if err := h.handler(ctx, message); err != nil {
 			if stack, ok := err.(interface{ StackTrace() string }); ok {