func (c *client) bridgeToMaster(host net.IP, port int) {
log.Debugf("Bridging to the master: %s:%d", host, port)
mqttURL := fmt.Sprintf("%s:%d", host, port)
clientID := "slave-" + config.Serial()
log.Infof("Connecting to master %s using cid:%s", mqttURL, clientID)
c.masterBus = bus.MustConnect(mqttURL, clientID)
c.localBus = bus.MustConnect(fmt.Sprintf("%s:%d", config.MustString("mqtt.host"), config.MustInt("mqtt.port")), "meshing")
log.Infof("Connected to master? %t", c.masterBus.Connected())
if c.masterBus.Connected() {
c.setUnorphaned()
} else {
c.setOrphaned()
}
c.masterBus.OnDisconnect(func() {
log.Infof("Disconnected from master")
go func() {
time.Sleep(time.Second * 5)
if !c.masterBus.Connected() {
log.Infof("Still disconnected from master, setting orphaned.")
c.setOrphaned()
}
}()
})
c.masterBus.OnConnect(func() {
log.Infof("Connected to master")
go func() {
time.Sleep(time.Second * 2)
if !c.masterBus.Connected() {
log.Infof("Still connected to master, setting unorphaned")
c.setUnorphaned()
}
}()
})
bridgeTopics := []string{"$discover", "$site/#", "$home/#" /*deprecated*/, "$node/#", "$thing/#", "$device/#"}
c.bridgeMqtt(c.masterBus, c.localBus, true, bridgeTopics)
c.bridgeMqtt(c.localBus, c.masterBus, false, bridgeTopics)
}
// Connect Builds a new ninja connection to the MQTT broker, using the given client ID
func Connect(clientID string) (*Connection, error) {
log := logger.GetLogger(fmt.Sprintf("%s.connection", clientID))
conn := Connection{
log: log,
services: []model.ServiceAnnouncement{},
}
mqttURL := fmt.Sprintf("%s:%d", config.MustString("mqtt", "host"), config.MustInt("mqtt", "port"))
log.Infof("Connecting to %s using cid:%s", mqttURL, clientID)
conn.mqtt = bus.MustConnect(mqttURL, clientID)
log.Infof("Connected")
conn.rpc = rpc.NewClient(conn.mqtt, json2.NewClientCodec())
conn.rpcServer = rpc.NewServer(conn.mqtt, json2.NewCodec())
// Add service discovery service. Responds to queries about services exposed in this process.
discoveryService := &discoverService{&conn}
_, err := conn.exportService(discoveryService, "$discover", &simpleService{*discoveryService.GetServiceAnnouncement()})
if err != nil {
log.Fatalf("Could not expose discovery service: %s", err)
}
return &conn, nil
}
func createBus(conf *Config, agent *Agent) *Bus {
var addr string
if strings.HasPrefix(conf.LocalUrl, "tcp://") {
addr = conf.LocalUrl[len("tcp://"):]
} else {
addr = conf.LocalUrl
}
logger.Infof("connecting to the bus %s...", addr)
theBus := bus.MustConnect(addr, "sphere-leds")
logger.Infof("connected to the bus.")
return &Bus{conf: conf, bus: theBus, agent: agent}
}