forked from jaegertracing/jaeger
-
Notifications
You must be signed in to change notification settings - Fork 1
/
model.go
116 lines (102 loc) · 3.74 KB
/
model.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
// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package dbmodel
import (
"bytes"
"encoding/binary"
"github.com/uber/jaeger/model"
)
// TraceID is a serializable form of model.TraceID
type TraceID [16]byte
// Span is the database representation of a span.
type Span struct {
TraceID TraceID
SpanID int64
ParentID int64
OperationName string
Flags int32
StartTime int64
Duration int64
Tags []KeyValue
Logs []Log
Refs []SpanRef
Process Process
ServiceName string
SpanHash int64
}
// KeyValue is the UDT representation of a Jaeger KeyValue.
type KeyValue struct {
Key string `cql:"key"`
ValueType string `cql:"value_type"`
ValueString string `cql:"value_string"`
ValueBool bool `cql:"value_bool"`
ValueInt64 int64 `cql:"value_long"` // using more natural column name for Cassandra
ValueFloat64 float64 `cql:"value_double"` // using more natural column name for Cassandra
ValueBinary []byte `cql:"value_binary"`
}
// Log is the UDT representation of a Jaeger Log.
type Log struct {
Timestamp int64 `cql:"ts"`
Fields []KeyValue `cql:"fields"`
}
// SpanRef is the UDT representation of a Jaeger Span Reference.
type SpanRef struct {
RefType string `cql:"ref_type"`
TraceID TraceID `cql:"trace_id"`
SpanID int64 `cql:"span_id"`
}
// Process is the UDT representation of a Jaeger Process.
type Process struct {
ServiceName string `cql:"service_name"`
Tags []KeyValue `cql:"tags"`
}
// TagInsertion contains the items necessary to insert a tag for a given span
type TagInsertion struct {
ServiceName string
TagKey string
TagValue string
}
func (t TagInsertion) String() string {
const uniqueTagDelimiter = ":"
var buffer bytes.Buffer
buffer.WriteString(t.ServiceName)
buffer.WriteString(uniqueTagDelimiter)
buffer.WriteString(t.TagKey)
buffer.WriteString(uniqueTagDelimiter)
buffer.WriteString(t.TagValue)
return buffer.String()
}
// TraceIDFromDomain converts domain TraceID into serializable DB representation.
func TraceIDFromDomain(traceID model.TraceID) TraceID {
dbTraceID := TraceID{}
binary.BigEndian.PutUint64(dbTraceID[:8], uint64(traceID.High))
binary.BigEndian.PutUint64(dbTraceID[8:], uint64(traceID.Low))
return dbTraceID
}
// ToDomain converts trace ID from db-serializable form to domain TradeID
func (dbTraceID TraceID) ToDomain() model.TraceID {
traceIDHigh := binary.BigEndian.Uint64(dbTraceID[:8])
traceIDLow := binary.BigEndian.Uint64(dbTraceID[8:])
return model.TraceID{High: traceIDHigh, Low: traceIDLow}
}
// String returns hex string representation of the trace ID.
func (dbTraceID TraceID) String() string {
return dbTraceID.ToDomain().String()
}