-
Notifications
You must be signed in to change notification settings - Fork 26
/
link.go
130 lines (112 loc) · 3.6 KB
/
link.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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
// Copyright 2023 The Kelemetry 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 zconstants
import (
"github.com/jaegertracing/jaeger/model"
utilobject "github.com/kubewharf/kelemetry/pkg/util/object"
)
type LinkRef struct {
Key utilobject.Key
Role LinkRoleValue
Class string
}
// Tags for TraceSourceLink spans that indicate the linked object.
const (
LinkedObjectCluster = "linkedCluster"
LinkedObjectGroup = "linkedGroup"
LinkedObjectResource = "linkedResource"
LinkedObjectNamespace = "linkedNamespace"
LinkedObjectName = "linkedName"
// Indicates how the linked trace interacts with the current trace.
LinkRole = "linkRole"
// If this tag is nonempty, a virtual span is inserted between the linked objects with the tag value as the name.
LinkClass = "linkClass"
)
func TagLinkedObject(tags map[string]string, ln LinkRef) {
tags[LinkedObjectCluster] = ln.Key.Cluster
tags[LinkedObjectGroup] = ln.Key.Group
tags[LinkedObjectResource] = ln.Key.Resource
tags[LinkedObjectNamespace] = ln.Key.Namespace
tags[LinkedObjectName] = ln.Key.Name
tags[LinkRole] = string(ln.Role)
tags[LinkClass] = ln.Class
}
func ObjectKeyFromSpan(span *model.Span) utilobject.Key {
tags := model.KeyValues(span.Tags)
cluster, _ := tags.FindByKey("cluster")
group, _ := tags.FindByKey("group")
resource, _ := tags.FindByKey("resource")
namespace, _ := tags.FindByKey("namespace")
name, _ := tags.FindByKey("name")
key := utilobject.Key{
Cluster: cluster.VStr,
Group: group.VStr,
Resource: resource.VStr,
Namespace: namespace.VStr,
Name: name.VStr,
}
return key
}
func LinkedKeyFromSpan(span *model.Span) (utilobject.Key, bool) {
tags := model.KeyValues(span.Tags)
pseudoType, isPseudo := tags.FindByKey(PseudoType)
if !isPseudo || pseudoType.VStr != string(PseudoTypeLink) {
return utilobject.Key{}, false
}
cluster, _ := tags.FindByKey(LinkedObjectCluster)
group, _ := tags.FindByKey(LinkedObjectGroup)
resource, _ := tags.FindByKey(LinkedObjectResource)
namespace, _ := tags.FindByKey(LinkedObjectNamespace)
name, _ := tags.FindByKey(LinkedObjectName)
key := utilobject.Key{
Cluster: cluster.VStr,
Group: group.VStr,
Resource: resource.VStr,
Namespace: namespace.VStr,
Name: name.VStr,
}
return key, true
}
func KeyToSpanTags(key utilobject.Key) map[string]string {
return map[string]string{
"cluster": key.Cluster,
"group": key.Group,
"resource": key.Resource,
"namespace": key.Namespace,
"name": key.Name,
}
}
func VersionedKeyToSpanTags(key utilobject.VersionedKey) map[string]string {
m := KeyToSpanTags(key.Key)
m["version"] = key.Version
return m
}
type LinkRoleValue string
const (
// The current trace is a child trace under the linked trace
LinkRoleParent LinkRoleValue = "parent"
// The linked trace is a child trace under the current trace.
LinkRoleChild LinkRoleValue = "child"
)
// Determines the role of the reverse link.
func ReverseLinkRole(role LinkRoleValue) LinkRoleValue {
switch role {
case LinkRoleParent:
return LinkRoleChild
case LinkRoleChild:
return LinkRoleParent
default:
return role
}
}