forked from apache/rocketmq-client-go
/
orderly_push_consumer.go
84 lines (76 loc) · 2.46 KB
/
orderly_push_consumer.go
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/*
* 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 main
import (
"fmt"
"github.com/apache/rocketmq-client-go/core"
"math/rand"
"sync/atomic"
)
// Change to main if you want to run it directly
func main3() {
pConfig := &rocketmq.PushConsumerConfig{
ClientConfig: rocketmq.ClientConfig{
GroupID: "GID_XXXXXXXXXXXX",
NameServer: "http://XXXXXXXXXXXXXXXXXX:80",
Credentials: &rocketmq.SessionCredentials{
AccessKey: "Your Access Key",
SecretKey: "Your Secret Key",
Channel: "ALIYUN/OtherChannel",
},
},
Model: rocketmq.Clustering,
ConsumerModel: rocketmq.Orderly,
}
consumeWithOrderly(pConfig)
}
func consumeWithOrderly(config *rocketmq.PushConsumerConfig) {
consumer, err := rocketmq.NewPushConsumer(config)
if err != nil {
println("create Consumer failed, error:", err)
return
}
ch := make(chan interface{})
var count = (int64)(1000000)
// ********************************************
// MUST subscribe topic before consumer started.
// *********************************************
consumer.Subscribe("YourOrderlyTopicXXXXXXXX", "*", func(msg *rocketmq.MessageExt) rocketmq.ConsumeStatus {
fmt.Printf("A message received, MessageID:%s, Body:%s \n", msg.MessageID, msg.Body)
if atomic.AddInt64(&count, -1) <= 0 {
ch <- "quit"
}
if 0 == rand.Int()%7 {
fmt.Printf("Consumer Later, MessageID:%s \n", msg.MessageID)
return rocketmq.ReConsumeLater
}
return rocketmq.ConsumeSuccess
})
err = consumer.Start()
if err != nil {
println("consumer start failed,", err)
return
}
fmt.Printf("consumer: %s started...\n", consumer)
<-ch
err = consumer.Shutdown()
if err != nil {
println("consumer shutdown failed")
return
}
println("consumer has shutdown.")
}