Merge pull request '#347 add Sort Labels' (#47) from kgorbunov/micro-tracer-opentracing:#347-v3 into v3

Reviewed-on: #47

go.mod

@@ -1,10 +1,11 @@
 module go.unistack.org/micro-tracer-opentracing/v3
 
-go 1.20
+go 1.21
+
+toolchain go1.22.2
 
 require (
 	github.com/opentracing/opentracing-go v1.2.0
-	go.unistack.org/micro/v3 v3.10.28
+	go.opentelemetry.io/otel v1.28.0
+	go.unistack.org/micro/v3 v3.10.81
 )
-
-require github.com/stretchr/testify v1.8.1 // indirect

go.sum

@@ -1,23 +1,19 @@
 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/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 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 v1.7.1/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 v3.10.27 h1:jluDdhkG9P/nchaNlhLkBmGxUASkV/L+/fuWG5RX1tY=
-go.unistack.org/micro/v3 v3.10.27/go.mod h1:ALkeXpqChYDjx8KPi7tz9mmIyOnob6nlNswsg8BnZjQ=
-go.unistack.org/micro/v3 v3.10.28 h1:/87lGekrmi0/66pioy+Nh8lVUBBYnVqKoHiNYX5OmMI=
-go.unistack.org/micro/v3 v3.10.28/go.mod h1:eUgtvbtiiz6te93m0ZdmoecbitWwjdBmmr84srmEIKA=
-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=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+go.opentelemetry.io/otel v1.28.0 h1:/SqNcYk+idO0CxKEUOtKQClMK/MimZihKYMruSMViUo=
+go.opentelemetry.io/otel v1.28.0/go.mod h1:q68ijF8Fc8CnMHKyzqL6akLO46ePnjkgfIMIjUIX9z4=
+go.unistack.org/micro/v3 v3.10.81 h1:zHttMUEwL/f9GtrNAQOk8bK0NrEwAuKeUW8DEoywgJI=
+go.unistack.org/micro/v3 v3.10.81/go.mod h1:erMgt3Bl7vQQ0e9UpQyR5NlLiZ9pKeEJ9+1tfYFaqUg=
 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

@@ -3,12 +3,14 @@ package opentracing
 import (
 	"context"
 	"errors"
-	"fmt"
+	"strings"
 
 	ot "github.com/opentracing/opentracing-go"
 	otlog "github.com/opentracing/opentracing-go/log"
+	"go.opentelemetry.io/otel/attribute"
 	"go.unistack.org/micro/v3/metadata"
 	"go.unistack.org/micro/v3/tracer"
+	"go.unistack.org/micro/v3/util/sort"
 )
 
 var _ tracer.Tracer = &otTracer{}
@@ -40,8 +42,27 @@ func (t *otTracer) Init(opts ...tracer.Option) error {
 	return nil
 }
 
+type otSpanContext interface {
+	TraceID() idStringer
+	SpanID() idStringer
+}
+
+type jSpanContext interface {
+	TraceID() idStringer
+	SpanID() idStringer
+}
+
 func (t *otTracer) Start(ctx context.Context, name string, opts ...tracer.SpanOption) (context.Context, tracer.Span) {
 	options := tracer.NewSpanOptions(opts...)
+
+	if len(options.Labels)%2 != 0 {
+		options.Labels = options.Labels[:len(options.Labels)-1]
+	}
+
+	for _, fn := range t.opts.ContextAttrFuncs {
+		options.Labels = append(options.Labels, fn(ctx)...)
+	}
+
 	var span ot.Span
 	switch options.Kind {
 	case tracer.SpanKindUnspecified:
@@ -53,15 +74,78 @@ func (t *otTracer) Start(ctx context.Context, name string, opts ...tracer.SpanOp
 	case tracer.SpanKindServer, tracer.SpanKindConsumer:
 		ctx, span = t.startSpanFromIncomingContext(ctx, name)
 	}
+
 	sp := &otSpan{span: span, opts: options}
+
+	spctx := span.Context()
+
+	var traceID, spanID, parentID string
+
+	if v, ok := spctx.(otSpanContext); ok {
+		traceID = v.TraceID().String()
+		spanID = v.SpanID().String()
+	} else {
+		carrier := make(map[string]string, 1)
+		_ = span.Tracer().Inject(spctx, ot.TextMap, ot.TextMapCarrier(carrier))
+		for k, v := range carrier {
+			switch k {
+			case "mockpfx-ids-sampled":
+				continue
+			case "mockpfx-ids-spanid":
+				spanID = v
+			case "mockpfx-ids-traceid":
+				traceID = v
+			default: // reasonable default
+				p := strings.Split(v, ":")
+				traceID = p[0]
+				spanID = p[1]
+				parentID = p[2]
+			case "uber-trace-id": // jaeger trace span
+				p := strings.Split(v, ":")
+				traceID = p[0]
+				spanID = p[1]
+				parentID = p[2]
+			}
+		}
+	}
+
+	sp.traceID = traceID
+	sp.spanID = spanID
+	sp.parentID = parentID
+
 	return tracer.NewSpanContext(ctx, sp), sp
 }
 
+type idStringer struct {
+	s string
+}
+
+func (s idStringer) String() string {
+	return s.s
+}
+
 type otSpan struct {
 	span      ot.Span
+	spanID    string
+	traceID   string
+	parentID  string
 	opts      tracer.SpanOptions
 	status    tracer.SpanStatus
 	statusMsg string
+	labels    []interface{}
+	finished  bool
+}
+
+func (os *otSpan) TraceID() string {
+	return os.traceID
+}
+
+func (os *otSpan) SpanID() string {
+	return os.spanID
+}
+
+func (os *otSpan) ParentID() string {
+	return os.parentID
 }
 
 func (os *otSpan) SetStatus(st tracer.SpanStatus, msg string) {
@@ -78,33 +162,52 @@ func (os *otSpan) Tracer() tracer.Tracer {
 }
 
 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]
+	if os.finished {
+		return
 	}
-	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":
-			os.status = tracer.SpanStatusError
-			os.statusMsg = fmt.Sprintf("%v", os.opts.Labels[idx+1])
-		case "error":
-			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])
-		default:
-			os.span.LogKV(os.opts.Labels[idx], os.opts.Labels[idx+1])
+
+	options := os.opts
+
+	options.Status = os.status
+	options.StatusMsg = os.statusMsg
+	options.Labels = append(options.Labels, os.labels...)
+
+	for _, o := range opts {
+		o(&options)
+	}
+
+	if !options.Record {
+		return
+	}
+
+	if len(options.Labels)%2 != 0 {
+		options.Labels = options.Labels[:len(options.Labels)-1]
+	}
+
+	os.opts.Labels = sort.Uniq(os.opts.Labels)
+
+	l := len(options.Labels)
+	for idx := 0; idx < l; idx++ {
+		switch lt := options.Labels[idx].(type) {
+		case attribute.KeyValue:
+			os.span.SetTag(string(lt.Key), lt.Value.AsInterface())
+		case string:
+			if l > idx+1 {
+				os.span.SetTag(lt, options.Labels[idx+1])
+				idx++
+			}
 		}
 	}
-	if os.status == tracer.SpanStatusError {
+
+	if options.Status == tracer.SpanStatusError {
 		os.span.SetTag("error", true)
-		os.span.LogKV("error", os.statusMsg)
+		os.span.LogKV("error", options.StatusMsg)
 	}
-	os.span.SetTag("span.kind", os.opts.Kind)
+
+	os.span.SetTag("span.kind", options.Kind)
 	os.span.Finish()
+
+	os.finished = true
 }
 
 func (os *otSpan) AddEvent(name string, opts ...tracer.EventOption) {
@@ -132,7 +235,7 @@ func (os *otSpan) Kind() tracer.SpanKind {
 }
 
 func (os *otSpan) AddLabels(labels ...interface{}) {
-	os.opts.Labels = append(os.opts.Labels, labels...)
+	os.labels = append(os.labels, labels...)
 }
 
 func NewTracer(opts ...tracer.Option) *otTracer {
@@ -140,10 +243,6 @@ func NewTracer(opts ...tracer.Option) *otTracer {
 	return &otTracer{opts: options}
 }
 
-func spanFromContext(ctx context.Context) ot.Span {
-	return ot.SpanFromContext(ctx)
-}
-
 func (t *otTracer) startSpanFromAny(ctx context.Context, name string, opts ...ot.StartSpanOption) (context.Context, ot.Span) {
 	if tracerSpan, ok := tracer.SpanFromContext(ctx); ok && tracerSpan != nil {
 		return t.startSpanFromContext(ctx, name, opts...)
@@ -225,11 +324,15 @@ func (t *otTracer) startSpanFromOutgoingContext(ctx context.Context, name string
 	}
 
 	nmd := metadata.Copy(md)
+	smd := metadata.New(1)
 
 	sp := t.tracer.StartSpan(name, opts...)
-	if err := sp.Tracer().Inject(sp.Context(), ot.TextMap, ot.TextMapCarrier(nmd)); err != nil {
+	if err := sp.Tracer().Inject(sp.Context(), ot.TextMap, ot.TextMapCarrier(smd)); err != nil {
 		return nil, nil
 	}
+	for k, v := range smd {
+		nmd.Set(k, v)
+	}
 
 	ctx = metadata.NewOutgoingContext(ot.ContextWithSpan(ctx, sp), nmd)
 
@@ -268,11 +371,15 @@ func (t *otTracer) startSpanFromIncomingContext(ctx context.Context, name string
 	}
 
 	nmd := metadata.Copy(md)
+	smd := metadata.New(1)
 
 	sp := t.tracer.StartSpan(name, opts...)
-	if err := sp.Tracer().Inject(sp.Context(), ot.TextMap, ot.TextMapCarrier(nmd)); err != nil {
+	if err := sp.Tracer().Inject(sp.Context(), ot.TextMap, ot.TextMapCarrier(smd)); err != nil {
 		return nil, nil
 	}
+	for k, v := range smd {
+		nmd.Set(k, v)
+	}
 
 	ctx = metadata.NewIncomingContext(ot.ContextWithSpan(ctx, sp), nmd)
 

opentracing_test.go

@@ -2,49 +2,116 @@ package opentracing
 
 import (
 	"context"
-	"sync"
+	"fmt"
 	"testing"
 
-	"github.com/opentracing/opentracing-go"
+	"github.com/opentracing/opentracing-go/mocktracer"
+	// jconfig "github.com/uber/jaeger-client-go/config"
+	"go.unistack.org/micro/v3/logger/slog"
 	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/tracer"
 )
 
-func TestStartSpanFromIncomingContext(t *testing.T) {
-	md := metadata.New(2)
-	md.Set("key", "val")
-
-	var g sync.WaitGroup
-
+func TestNoopTraceID(t *testing.T) {
+	md := metadata.New(1)
 	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()
-		}()
+	tr := NewTracer(Tracer(mocktracer.New()))
+	if err := tr.Init(); err != nil {
+		t.Fatal(err)
 	}
 
-	for {
-		select {
-		default:
-			g.Wait()
-			close(cherr)
-		case err, ok := <-cherr:
-			if err != nil {
-				t.Fatal(err)
-			} else if !ok {
-				return
-			}
-		}
+	var sp tracer.Span
+
+	ctx, sp = tr.Start(ctx, "test")
+	if v := sp.TraceID(); v != "43" {
+		t.Fatalf("invalid span trace id %#+v", v)
+	}
+	if v := sp.SpanID(); v != "44" {
+		t.Fatalf("invalid span span id %#+v", v)
+	}
+
+	l := slog.NewLogger()
+	if err := l.Init(); err != nil {
+		t.Fatal(err)
+	}
+	l.Info(ctx, "msg")
+}
+
+/*
+func TestRealTraceID(t *testing.T) {
+	md := metadata.New(1)
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	ctx = metadata.NewIncomingContext(ctx, md)
+
+	jcfg := &jconfig.Configuration{
+		ServiceName: "test",
+		Sampler: &jconfig.SamplerConfig{
+			Type:  "const",
+			Param: 1,
+		},
+		Reporter: &jconfig.ReporterConfig{
+			LogSpans:  true,
+			QueueSize: 100,
+		},
+	}
+
+	jtr, closer, err := jcfg.NewTracer()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer closer.Close()
+
+	tr := NewTracer(Tracer(jtr))
+	if err := tr.Init(); err != nil {
+		t.Fatal(err)
+	}
+
+	var sp tracer.Span
+
+	ctx, sp = tr.Start(ctx, "test")
+	if v := sp.TraceID(); v != "43" {
+		t.Fatalf("invalid span trace id %#+v", v)
+	}
+	if v := sp.SpanID(); v != "44" {
+		t.Fatalf("invalid span span id %#+v", v)
+	}
+
+	l := slog.NewLogger()
+	if err := l.Init(); err != nil {
+		t.Fatal(err)
+	}
+	l.Info(ctx, "msg")
+}
+*/
+
+func TestTraceTags(t *testing.T) {
+	md := metadata.New(1)
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	ctx = metadata.NewIncomingContext(ctx, md)
+
+	mtr := mocktracer.New()
+	tr := NewTracer(Tracer(mtr))
+	if err := tr.Init(); err != nil {
+		t.Fatal(err)
+	}
+
+	var sp tracer.Span
+
+	ctx, sp = tr.Start(ctx, "test", tracer.WithSpanLabels("key", "val", "odd"))
+	sp.Finish(tracer.WithSpanLabels("xkey", "xval"))
+	_ = ctx
+	msp := mtr.FinishedSpans()[0]
+
+	if "val" != fmt.Sprintf("%v", msp.Tags()["key"]) {
+		t.Fatal("mock span invalid")
+	}
+
+	if "xval" != fmt.Sprintf("%v", msp.Tags()["xkey"]) {
+		t.Fatalf("mock span invalid %#+v", msp)
 	}
 }