forked from HuaweiTech/gorouter
/
event_formatter.go
43 lines (37 loc) · 1.21 KB
/
event_formatter.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
package emitter
import (
"code.google.com/p/gogoprotobuf/proto"
"errors"
"github.com/cloudfoundry/dropsonde/events"
)
var ErrorMissingOrigin = errors.New("Event not emitted due to missing origin information")
var ErrorUnknownEventType = errors.New("Cannot create envelope for unknown event type")
func Wrap(e events.Event, origin string) (*events.Envelope, error) {
if origin == "" {
return nil, ErrorMissingOrigin
}
envelope := &events.Envelope{Origin: proto.String(origin)}
switch e := e.(type) {
case *events.Heartbeat:
envelope.EventType = events.Envelope_Heartbeat.Enum()
envelope.Heartbeat = e
case *events.HttpStart:
envelope.EventType = events.Envelope_HttpStart.Enum()
envelope.HttpStart = e
case *events.HttpStop:
envelope.EventType = events.Envelope_HttpStop.Enum()
envelope.HttpStop = e
case *events.ValueMetric:
envelope.EventType = events.Envelope_ValueMetric.Enum()
envelope.ValueMetric = e
case *events.CounterEvent:
envelope.EventType = events.Envelope_CounterEvent.Enum()
envelope.CounterEvent = e
case *events.LogMessage:
envelope.EventType = events.Envelope_LogMessage.Enum()
envelope.LogMessage = e
default:
return nil, ErrorUnknownEventType
}
return envelope, nil
}