majintao opened a new issue, #1129:
URL: https://github.com/apache/rocketmq-client-go/issues/1129
`package rocket_mq
import (
"context"
"fmt"
"github.com/apache/rocketmq-client-go/v2"
"github.com/apache/rocketmq-client-go/v2/consumer"
"github.com/apache/rocketmq-client-go/v2/primitive"
"github.com/apache/skywalking-go/toolkit/trace"
)
type ProcFunc func(context.Context, []byte) error
type ConsumerProcessor struct {
opts []consumer.Option
selector consumer.MessageSelector
topic string
procFunc ProcFunc
consumer rocketmq.PushConsumer
}
func NewConsumerProcessor(topic string, procFunc ProcFunc, opts
...consumer.Option) *ConsumerProcessor {
return &ConsumerProcessor{
opts: opts,
topic: topic,
procFunc: procFunc,
}
}
func (cp *ConsumerProcessor) Start() error {
// 启动消费
c, err := rocketmq.NewPushConsumer(cp.opts...)
if err != nil {
return err
}
cp.consumer = c
c.Subscribe(cp.topic, cp.selector, func(ctx context.Context, messages
...*primitive.MessageExt) (
consumer.ConsumeResult, error) {
// 处理消息
for _, message := range messages {
err := cp.process(ctx, message)
if err != nil {
fmt.Printf("messageId:%s", message.MsgId)
return consumer.ConsumeRetryLater, nil
}
}
return consumer.ConsumeSuccess, nil
})
err = c.Start()
if err != nil {
return err
}
return nil
}
func (cp *ConsumerProcessor) process(ctx context.Context, message
*primitive.MessageExt) error {
// 添加链路追踪支持
_, err := trace.CreateLocalSpan("")
if err != nil {
}
defer trace.StopSpan()
err = cp.procFunc(ctx, message.Body)
if err != nil {
return err
}
return nil
}
func (cp *ConsumerProcessor) Stop() {
// 关闭消费
cp.consumer.Shutdown()
}
`
`
topic := "test_topic"
rocket_mq.NewConsumerProcessor(topic, func(c context.Context, msg
[]byte) error {
xflog.Infof("msg:%v", string(msg))
return errors.New("111")
}, consumer.WithRetry(-1), consumer.WithAutoCommit(false),
consumer.WithGroupName("abc"),
consumer.WithNameServer([]string{"10.34.22.164:9876",
"10.34.22.167:9876"})).Start()
`
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