Merge pull request 'fixup span and tags' (#43) from fixup into v3

Reviewed-on: #43

go.mod

@@ -1,10 +1,10 @@
-module go.unistack.org/micro-tracer-opentracing/v4
+module go.unistack.org/micro-tracer-opentracing/v3
 
 go 1.20
 
 require (
 	github.com/opentracing/opentracing-go v1.2.0
-	go.unistack.org/micro/v4 v4.0.13
+	go.unistack.org/micro/v3 v3.10.25
 )
 
-require github.com/stretchr/testify v1.8.3 // indirect
+require github.com/stretchr/testify v1.8.1 // indirect

go.sum

@@ -1,13 +1,21 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/opentracing/opentracing-go v1.2.0 h1:uEJPy/1a5RIPAJ0Ov+OIO8OxWu77jEv+1B0VhjKrZUs=
 github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY=
-github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-go.unistack.org/micro/v4 v4.0.13 h1:wyprk+KNAv/zR6bri6p6ucmXcJ9WyZ/vzru4zjPd8dA=
-go.unistack.org/micro/v4 v4.0.13/go.mod h1:ZDgU9931vm2l7X6RN/6UuwRIVp24GRdmQ7dKmegArk4=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
+github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+go.unistack.org/micro/v3 v3.10.25 h1:A0epdZHOqjnXx103wwFhPKgmvVVbScvfbmn3HmHz1wE=
+go.unistack.org/micro/v3 v3.10.25/go.mod h1:ALkeXpqChYDjx8KPi7tz9mmIyOnob6nlNswsg8BnZjQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

opentracing.go

@@ -7,9 +7,8 @@ import (
 
 	ot "github.com/opentracing/opentracing-go"
 	otlog "github.com/opentracing/opentracing-go/log"
-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/options"
-	"go.unistack.org/micro/v4/tracer"
+	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/tracer"
 )
 
 var _ tracer.Tracer = &otTracer{}
@@ -27,7 +26,7 @@ func (t *otTracer) Flush(ctx context.Context) error {
 	return nil
 }
 
-func (t *otTracer) Init(opts ...options.Option) error {
+func (t *otTracer) Init(opts ...tracer.Option) error {
 	for _, o := range opts {
 		o(&t.opts)
 	}
@@ -41,7 +40,7 @@ func (t *otTracer) Init(opts ...options.Option) error {
 	return nil
 }
 
-func (t *otTracer) Start(ctx context.Context, name string, opts ...options.Option) (context.Context, tracer.Span) {
+func (t *otTracer) Start(ctx context.Context, name string, opts ...tracer.SpanOption) (context.Context, tracer.Span) {
 	options := tracer.NewSpanOptions(opts...)
 	var span ot.Span
 	switch options.Kind {
@@ -65,25 +64,6 @@ type otSpan struct {
 	statusMsg string
 }
 
-type spanContext interface {
-	TraceID() fmt.Stringer
-	SpanID() fmt.Stringer
-}
-
-func (os *otSpan) TraceID() string {
-	if spanctx, ok := os.span.Context().(spanContext); ok {
-		return spanctx.TraceID().String()
-	}
-	return ""
-}
-
-func (os *otSpan) SpanID() string {
-	if spanctx, ok := os.span.Context().(spanContext); ok {
-		return spanctx.SpanID().String()
-	}
-	return ""
-}
-
 func (os *otSpan) SetStatus(st tracer.SpanStatus, msg string) {
 	os.status = st
 	os.statusMsg = msg
@@ -97,15 +77,10 @@ func (os *otSpan) Tracer() tracer.Tracer {
 	return &otTracer{tracer: os.span.Tracer()}
 }
 
-func (os *otSpan) AddLogs(kv ...interface{}) {
-	os.span.LogKV(kv...)
-}
-
-func (os *otSpan) Finish(opts ...options.Option) {
+func (os *otSpan) Finish(opts ...tracer.SpanOption) {
 	if len(os.opts.Labels)%2 != 0 {
 		os.opts.Labels = os.opts.Labels[:len(os.opts.Labels)-1]
 	}
-	os.opts.Labels = tracer.UniqLabels(os.opts.Labels)
 	for idx := 0; idx < len(os.opts.Labels); idx += 2 {
 		switch os.opts.Labels[idx] {
 		case "err":
@@ -115,10 +90,8 @@ func (os *otSpan) Finish(opts ...options.Option) {
 			continue
 		case "X-Request-Id", "x-request-id":
 			os.span.SetTag("x-request-id", os.opts.Labels[idx+1])
-		case "rpc.call", "rpc.call_type", "rpc.flavor", "rpc.service", "rpc.method",
-			"sdk.database", "db.statement", "db.args", "db.query", "db.method",
-			"messaging.destination.name", "messaging.source.name", "messaging.operation":
-			os.span.SetTag(fmt.Sprintf("%v", os.opts.Labels[idx]), os.opts.Labels[idx+1])
+		case "rpc.call", "rpc.call_type", "rpc.flavor", "span.kind", "sdk.database", "db.statement", "db.args", "args", "db.query", "query", "method":
+			os.span.SetTag(fmt.Sprintf("%v", os.opts.Labels[idx]), fmt.Sprintf("%v", os.opts.Labels[idx+1]))
 		default:
 			os.span.LogKV(os.opts.Labels[idx], os.opts.Labels[idx+1])
 		}
@@ -127,11 +100,10 @@ func (os *otSpan) Finish(opts ...options.Option) {
 		os.span.SetTag("error", true)
 		os.span.LogKV("error", os.statusMsg)
 	}
-	os.span.SetTag("span.kind", os.opts.Kind)
 	os.span.Finish()
 }
 
-func (os *otSpan) AddEvent(name string, opts ...options.Option) {
+func (os *otSpan) AddEvent(name string, opts ...tracer.EventOption) {
 	os.span.LogFields(otlog.Event(name))
 }
 
@@ -155,7 +127,7 @@ func (os *otSpan) AddLabels(labels ...interface{}) {
 	os.opts.Labels = append(os.opts.Labels, labels...)
 }
 
-func NewTracer(opts ...options.Option) *otTracer {
+func NewTracer(opts ...tracer.Option) *otTracer {
 	options := tracer.NewOptions(opts...)
 	return &otTracer{opts: options}
 }

opentracing_test.go

@@ -0,0 +1,50 @@
+package opentracing
+
+import (
+	"context"
+	"sync"
+	"testing"
+
+	"github.com/opentracing/opentracing-go"
+	"go.unistack.org/micro/v3/metadata"
+)
+
+func TestStartSpanFromIncomingContext(t *testing.T) {
+	md := metadata.New(2)
+	md.Set("key", "val")
+
+	var g sync.WaitGroup
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	ctx = metadata.NewIncomingContext(ctx, md)
+
+	tracer := opentracing.GlobalTracer()
+
+	g.Add(8000)
+	cherr := make(chan error)
+	for i := 0; i < 8000; i++ {
+		go func() {
+			defer g.Done()
+			_, sp, err := startSpanFromIncomingContext(ctx, tracer, "test")
+			if err != nil {
+				cherr <- err
+			}
+			sp.Finish()
+		}()
+	}
+
+	for {
+		select {
+		default:
+			g.Wait()
+			close(cherr)
+		case err, ok := <-cherr:
+			if err != nil {
+				t.Fatal(err)
+			} else if !ok {
+				return
+			}
+		}
+	}
+}

options.go

@@ -2,11 +2,11 @@ package opentracing
 
 import (
 	"github.com/opentracing/opentracing-go"
-	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v3/tracer"
 )
 
 type tracerKey struct{}
 
-func Tracer(ot opentracing.Tracer) options.Option {
-	return options.ContextOption(tracerKey{}, ot)
+func Tracer(ot opentracing.Tracer) tracer.Option {
+	return tracer.SetOption(tracerKey{}, ot)
 }