hpds_node/example/multi-mq/mock_ap/main.go

package main

import (
	"fmt"
	"git.hpds.cc/Component/network/log"
	"git.hpds.cc/pavement/hpds_node"
	"math/rand"
	"os"
	"time"
)

func main() {
	// connect to HPDS-MQ.
	ap := hpds_node.NewAccessPoint(
		"hpds-ap",
		hpds_node.WithMqAddr("localhost:27188"),
		hpds_node.WithCredential("token:z1"),
	)
	err := ap.Connect()
	if err != nil {
		log.Printf("[AccessPoint] Emit the data to HPDS-MQ failure with err: %v", err)
		return
	}
	defer ap.Close()

	ap.SetDataTag(0x33)

	// generate mock data and send it to HPDS-MQ.
	err = generateAndSendData(ap)
	if err != nil {
		log.Printf("[AccessPoint] >>>> ERR >>>> %v", err)
		os.Exit(1)
	}
	select {}
}

func generateAndSendData(stream hpds_node.AccessPoint) error {
	for {
		rnd := rand.New(rand.NewSource(time.Now().UnixNano()))
		data := []byte(fmt.Sprintf("%d", rnd.Uint32()))
		// send data via QUIC stream.
		_, err := stream.Write(data)
		if err != nil {
			log.Printf("[AccessPoint] Emit %v to HPDS-MQ failure with err: %v", data, err)
			time.Sleep(500 * time.Millisecond)
			continue
		}

		log.Printf("[AccessPoint] Emit %s to HPDS-MQ", data)
		time.Sleep(1000 * time.Millisecond)
	}
}