-
Notifications
You must be signed in to change notification settings - Fork 0
/
parent.go
53 lines (46 loc) · 1.46 KB
/
parent.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
// Copyright The OpenTelemetry Authors
//
// 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 parent
import (
"context"
"github.com/Ch1f/otel/api/kv"
"github.com/Ch1f/otel/api/trace"
)
func GetSpanContextAndLinks(ctx context.Context, ignoreContext bool) (trace.SpanContext, bool, []trace.Link) {
lsctx := trace.SpanFromContext(ctx).SpanContext()
rsctx := trace.RemoteSpanContextFromContext(ctx)
if ignoreContext {
links := addLinkIfValid(nil, lsctx, "current")
links = addLinkIfValid(links, rsctx, "remote")
return trace.EmptySpanContext(), false, links
}
if lsctx.IsValid() {
return lsctx, false, nil
}
if rsctx.IsValid() {
return rsctx, true, nil
}
return trace.EmptySpanContext(), false, nil
}
func addLinkIfValid(links []trace.Link, sc trace.SpanContext, kind string) []trace.Link {
if !sc.IsValid() {
return links
}
return append(links, trace.Link{
SpanContext: sc,
Attributes: []kv.KeyValue{
kv.String("ignored-on-demand", kind),
},
})
}