[VOL-5486] Upgrade library versions
Change-Id: I8b4e88699e03f44ee13e467867f45ae3f0a63c4b
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/go.opentelemetry.io/otel/propagation/trace_context.go b/vendor/go.opentelemetry.io/otel/propagation/trace_context.go
new file mode 100644
index 0000000..6870e31
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/propagation/trace_context.go
@@ -0,0 +1,156 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package propagation // import "go.opentelemetry.io/otel/propagation"
+
+import (
+ "context"
+ "encoding/hex"
+ "fmt"
+ "strings"
+
+ "go.opentelemetry.io/otel/trace"
+)
+
+const (
+ supportedVersion = 0
+ maxVersion = 254
+ traceparentHeader = "traceparent"
+ tracestateHeader = "tracestate"
+ delimiter = "-"
+)
+
+// TraceContext is a propagator that supports the W3C Trace Context format
+// (https://www.w3.org/TR/trace-context/)
+//
+// This propagator will propagate the traceparent and tracestate headers to
+// guarantee traces are not broken. It is up to the users of this propagator
+// to choose if they want to participate in a trace by modifying the
+// traceparent header and relevant parts of the tracestate header containing
+// their proprietary information.
+type TraceContext struct{}
+
+var (
+ _ TextMapPropagator = TraceContext{}
+ versionPart = fmt.Sprintf("%.2X", supportedVersion)
+)
+
+// Inject injects the trace context from ctx into carrier.
+func (tc TraceContext) Inject(ctx context.Context, carrier TextMapCarrier) {
+ sc := trace.SpanContextFromContext(ctx)
+ if !sc.IsValid() {
+ return
+ }
+
+ if ts := sc.TraceState().String(); ts != "" {
+ carrier.Set(tracestateHeader, ts)
+ }
+
+ // Clear all flags other than the trace-context supported sampling bit.
+ flags := sc.TraceFlags() & trace.FlagsSampled
+
+ var sb strings.Builder
+ sb.Grow(2 + 32 + 16 + 2 + 3)
+ _, _ = sb.WriteString(versionPart)
+ traceID := sc.TraceID()
+ spanID := sc.SpanID()
+ flagByte := [1]byte{byte(flags)}
+ var buf [32]byte
+ for _, src := range [][]byte{traceID[:], spanID[:], flagByte[:]} {
+ _ = sb.WriteByte(delimiter[0])
+ n := hex.Encode(buf[:], src)
+ _, _ = sb.Write(buf[:n])
+ }
+ carrier.Set(traceparentHeader, sb.String())
+}
+
+// Extract reads tracecontext from the carrier into a returned Context.
+//
+// The returned Context will be a copy of ctx and contain the extracted
+// tracecontext as the remote SpanContext. If the extracted tracecontext is
+// invalid, the passed ctx will be returned directly instead.
+func (tc TraceContext) Extract(ctx context.Context, carrier TextMapCarrier) context.Context {
+ sc := tc.extract(carrier)
+ if !sc.IsValid() {
+ return ctx
+ }
+ return trace.ContextWithRemoteSpanContext(ctx, sc)
+}
+
+func (tc TraceContext) extract(carrier TextMapCarrier) trace.SpanContext {
+ h := carrier.Get(traceparentHeader)
+ if h == "" {
+ return trace.SpanContext{}
+ }
+
+ var ver [1]byte
+ if !extractPart(ver[:], &h, 2) {
+ return trace.SpanContext{}
+ }
+ version := int(ver[0])
+ if version > maxVersion {
+ return trace.SpanContext{}
+ }
+
+ var scc trace.SpanContextConfig
+ if !extractPart(scc.TraceID[:], &h, 32) {
+ return trace.SpanContext{}
+ }
+ if !extractPart(scc.SpanID[:], &h, 16) {
+ return trace.SpanContext{}
+ }
+
+ var opts [1]byte
+ if !extractPart(opts[:], &h, 2) {
+ return trace.SpanContext{}
+ }
+ if version == 0 && (h != "" || opts[0] > 2) {
+ // version 0 not allow extra
+ // version 0 not allow other flag
+ return trace.SpanContext{}
+ }
+
+ // Clear all flags other than the trace-context supported sampling bit.
+ scc.TraceFlags = trace.TraceFlags(opts[0]) & trace.FlagsSampled
+
+ // Ignore the error returned here. Failure to parse tracestate MUST NOT
+ // affect the parsing of traceparent according to the W3C tracecontext
+ // specification.
+ scc.TraceState, _ = trace.ParseTraceState(carrier.Get(tracestateHeader))
+ scc.Remote = true
+
+ sc := trace.NewSpanContext(scc)
+ if !sc.IsValid() {
+ return trace.SpanContext{}
+ }
+
+ return sc
+}
+
+// upperHex detect hex is upper case Unicode characters.
+func upperHex(v string) bool {
+ for _, c := range v {
+ if c >= 'A' && c <= 'F' {
+ return true
+ }
+ }
+ return false
+}
+
+func extractPart(dst []byte, h *string, n int) bool {
+ part, left, _ := strings.Cut(*h, delimiter)
+ *h = left
+ // hex.Decode decodes unsupported upper-case characters, so exclude explicitly.
+ if len(part) != n || upperHex(part) {
+ return false
+ }
+ if p, err := hex.Decode(dst, []byte(part)); err != nil || p != n/2 {
+ return false
+ }
+ return true
+}
+
+// Fields returns the keys who's values are set with Inject.
+func (tc TraceContext) Fields() []string {
+ return []string{traceparentHeader, tracestateHeader}
+}