func Setup(url, deviceTopic string) {
opts := mqtt.NewClientOptions().AddBroker(url).SetClientID("ClientID")
opts.SetKeepAlive(20 * time.Second)
opts.SetPingTimeout(1 * time.Second)
c := mqtt.NewClient(opts)
if token := c.Connect(); token.Wait() && token.Error() != nil {
panic(token.Error())
}
deviceOutTopic := str.Concat(deviceTopic, "/o")
deviceInTopic := str.Concat(deviceTopic, "/i")
token2 := c.Subscribe(deviceInTopic, 0, func(client mqtt.Client, m mqtt.Message) {
log.Info("MQTT Dummy - Message received on: ", deviceOutTopic, " data: ", string(m.Payload()))
})
if token2.Wait() && token2.Error() != nil {
os.Exit(1)
}
}
func (mb *MQTT_1) setup(ctxPath string, wos *server.WotServer) {
deviceTopic := str.Concat(ctxPath, "/#")
token2 := mb.client.Subscribe(deviceTopic, 0, mb.eventHandler(ctxPath, wos))
if token2.Wait() && token2.Error() != nil {
log.Fatal(token2.Error)
os.Exit(1)
}
log.Info("MQTT_1 Backend: subscribed to device topic -> ", deviceTopic)
for _, p := range wos.GetDescription().Properties {
propPath := str.Concat(ctxPath, "/", p.Name)
wos.OnGetProperty(*p.Name, func() interface{} {
return mb.values[propPath]
})
if *p.Writable {
wos.OnUpdateProperty(*p.Name, func(payload interface{}) {
mb.publish(propPath, payload)
})
}
}
}
func (c *JsonEncoder) Decode(r io.Reader, t interface{}) error {
data, err := ioutil.ReadAll(r)
if err != nil {
return err
}
err = json.Unmarshal(data, t)
if err != nil {
return errors.New(str.Concat("Error unmarshaling input using ", c.Info(), " codec."))
}
return nil
}
func (sc *SimpleUrlEncoder) Encode(msgType int8, conversationID string, msgName string, data interface{}) []byte {
d := data.(map[string]interface{})
ds := str.Concat(msgType, ":", conversationID, ":", msgName, ":", toUrlQ(d))
return []byte(ds)
}