This repository has been archived by the owner on Apr 27, 2024. It is now read-only.
forked from apache/pulsar-client-go
-
Notifications
You must be signed in to change notification settings - Fork 0
/
producer_interceptor.go
59 lines (45 loc) · 1.89 KB
/
producer_interceptor.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
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 pulsartracing
import (
"context"
"github.com/opentracing/opentracing-go"
"github.com/toasttab/pulsar-client-go/pulsar"
)
const toPrefix = "To__"
type ProducerInterceptor struct {
}
func (t *ProducerInterceptor) BeforeSend(producer pulsar.Producer, message *pulsar.ProducerMessage) {
buildAndInjectSpan(message, producer).Finish()
}
func (t *ProducerInterceptor) OnSendAcknowledgement(producer pulsar.Producer,
message *pulsar.ProducerMessage,
msgID pulsar.MessageID) {
}
func buildAndInjectSpan(message *pulsar.ProducerMessage, producer pulsar.Producer) opentracing.Span {
tracer := opentracing.GlobalTracer()
spanContext := ExtractSpanContextFromProducerMessage(message)
var span opentracing.Span
var startSpanOptions []opentracing.StartSpanOption
if spanContext != nil {
startSpanOptions = []opentracing.StartSpanOption{opentracing.FollowsFrom(spanContext)}
}
span = tracer.StartSpan(toPrefix+producer.Topic(), startSpanOptions...)
enrichProducerSpan(message, producer, span)
InjectProducerMessageSpanContext(opentracing.ContextWithSpan(context.Background(), span), message)
return span
}