seaweedfs/weed/mq/client/cmd/weed_sub/subscriber.go
chrislu 35869b5c80 subscriber can be notified of the assignment change when topic is just configured
Next: Subscriber needs to read by the timestamp offset.
2024-01-03 13:30:30 -08:00

57 lines
1.3 KiB
Go

package main
import (
"flag"
"fmt"
"github.com/seaweedfs/seaweedfs/weed/mq/client/sub_client"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"strings"
"time"
)
var (
namespace = flag.String("ns", "test", "namespace")
topic = flag.String("topic", "test", "topic")
seedBrokers = flag.String("brokers", "localhost:17777", "seed brokers")
)
func main() {
flag.Parse()
subscriberConfig := &sub_client.SubscriberConfiguration{
ClientId: "testSubscriber",
ConsumerGroup: "test",
ConsumerGroupInstanceId: "test",
GrpcDialOption: grpc.WithTransportCredentials(insecure.NewCredentials()),
}
contentConfig := &sub_client.ContentConfiguration{
Namespace: *namespace,
Topic: *topic,
Filter: "",
StartTime: time.Unix(0, 0),
}
processorConfig := sub_client.ProcessorConfiguration{
ConcurrentPartitionLimit: 6,
}
brokers := strings.Split(*seedBrokers, ",")
subscriber := sub_client.NewTopicSubscriber(brokers, subscriberConfig, contentConfig, processorConfig)
subscriber.SetEachMessageFunc(func(key, value []byte) (bool, error) {
println(string(key), "=>", string(value))
return true, nil
})
subscriber.SetCompletionFunc(func() {
println("done subscribing")
})
if err := subscriber.Subscribe(); err != nil {
fmt.Println(err)
}
}