133 lines
2.3 KiB
Go
133 lines
2.3 KiB
Go
package tracer
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import (
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"context"
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"time"
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"go.unistack.org/micro/v4/util/id"
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)
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var _ Tracer = (*noopTracer)(nil)
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type noopTracer struct {
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opts Options
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spans []Span
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}
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func (t *noopTracer) Spans() []Span {
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return t.spans
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}
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func (t *noopTracer) Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span) {
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options := NewSpanOptions(opts...)
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span := &noopSpan{
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name: name,
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ctx: ctx,
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tracer: t,
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startTime: time.Now(),
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labels: options.Labels,
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kind: options.Kind,
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}
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span.spanID.s, _ = id.New()
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span.traceID.s, _ = id.New()
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if span.ctx == nil {
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span.ctx = context.Background()
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}
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return NewSpanContext(ctx, span), span
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}
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type noopStringer struct {
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s string
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}
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func (s noopStringer) String() string {
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return s.s
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}
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func (t *noopTracer) Flush(ctx context.Context) error {
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return nil
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}
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func (t *noopTracer) Init(opts ...Option) error {
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for _, o := range opts {
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o(&t.opts)
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}
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return nil
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}
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func (t *noopTracer) Name() string {
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return t.opts.Name
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}
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type noopSpan struct {
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ctx context.Context
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tracer Tracer
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name string
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statusMsg string
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startTime time.Time
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finishTime time.Time
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traceID noopStringer
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spanID noopStringer
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labels []interface{}
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kind SpanKind
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status SpanStatus
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}
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func (s *noopSpan) TraceID() string {
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return s.traceID.String()
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}
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func (s *noopSpan) SpanID() string {
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return s.spanID.String()
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}
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func (s *noopSpan) Finish(_ ...SpanOption) {
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s.finishTime = time.Now()
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}
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func (s *noopSpan) Context() context.Context {
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return s.ctx
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}
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func (s *noopSpan) Tracer() Tracer {
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return s.tracer
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}
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func (s *noopSpan) AddEvent(name string, opts ...EventOption) {
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}
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func (s *noopSpan) SetName(name string) {
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s.name = name
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}
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func (s *noopSpan) AddLogs(kv ...interface{}) {
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}
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func (s *noopSpan) AddLabels(kv ...interface{}) {
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s.labels = append(s.labels, kv...)
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}
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func (s *noopSpan) Kind() SpanKind {
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return s.kind
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}
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func (s *noopSpan) Status() (SpanStatus, string) {
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return s.status, s.statusMsg
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}
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func (s *noopSpan) SetStatus(st SpanStatus, msg string) {
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s.status = st
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s.statusMsg = msg
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}
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func (s *noopSpan) IsRecording() bool {
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return false
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}
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// NewTracer returns new memory tracer
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func NewTracer(opts ...Option) Tracer {
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return &noopTracer{
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opts: NewOptions(opts...),
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}
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}
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