[VOL-3187]Pass Context down the execution call hierarchy across ofagent codebase
Change-Id: Ia5f2fa1509beefe0ddc427b83e39d2702782db8f
diff --git a/vendor/github.com/uber/jaeger-client-go/interop.go b/vendor/github.com/uber/jaeger-client-go/interop.go
new file mode 100644
index 0000000..8402d08
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-client-go/interop.go
@@ -0,0 +1,55 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package jaeger
+
+import (
+ "github.com/opentracing/opentracing-go"
+)
+
+// TODO this file should not be needed after TChannel PR.
+
+type formatKey int
+
+// SpanContextFormat is a constant used as OpenTracing Format.
+// Requires *SpanContext as carrier.
+// This format is intended for interop with TChannel or other Zipkin-like tracers.
+const SpanContextFormat formatKey = iota
+
+type jaegerTraceContextPropagator struct {
+ tracer *Tracer
+}
+
+func (p *jaegerTraceContextPropagator) Inject(
+ ctx SpanContext,
+ abstractCarrier interface{},
+) error {
+ carrier, ok := abstractCarrier.(*SpanContext)
+ if !ok {
+ return opentracing.ErrInvalidCarrier
+ }
+
+ carrier.CopyFrom(&ctx)
+ return nil
+}
+
+func (p *jaegerTraceContextPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) {
+ carrier, ok := abstractCarrier.(*SpanContext)
+ if !ok {
+ return emptyContext, opentracing.ErrInvalidCarrier
+ }
+ ctx := new(SpanContext)
+ ctx.CopyFrom(carrier)
+ return *ctx, nil
+}