func client(cmd *cobra.Command, args []string) {
// Instantiates a new Client
c = &service.Client{}
// Creates a new MQTT CONNECT message and sets the proper parameters
msg := message.NewConnectMessage()
msg.SetVersion(4)
msg.SetCleanSession(true)
msg.SetClientId([]byte(fmt.Sprintf("pingmqclient%d%d", os.Getpid(), time.Now().Unix())))
msg.SetKeepAlive(300)
// Connects to the remote server at 127.0.0.1 port 1883
if err := c.Connect(clientURI, msg); err != nil {
log.Fatal(err)
}
// Creates a new SUBSCRIBE message to subscribe to topic "abc"
submsg := message.NewSubscribeMessage()
for _, t := range clientTopics {
submsg.AddTopic([]byte(t), 0)
}
c.Subscribe(submsg, nil, onPublish)
<-done
}
func (smq *SurgeMQ) Setup() {
msg := message.NewSubscribeMessage()
msg.SetPacketId(1)
msg.AddTopic([]byte(smq.subject), 0)
smq.client.Subscribe(msg, nil, func(msg *message.PublishMessage) error {
smq.handler.ReceiveMessage(msg.Payload())
return nil
})
}