Ejemplo n.º 1
0
func sockStartStopHandler(conn sockjs.Conn) {
	log.Println("start/stop session")

	ticker := time.NewTicker(time.Second)
	open := true

	for {
		if msg, err := conn.ReadMessage(); err != nil {
			log.Println("getting err: ", err)
			ticker.Stop()
			open = false
			return
		} else {
			if string(msg) == `"start"` {
				if !open {
					ticker = time.NewTicker(time.Second)
					open = true
				}
				go func() {
					for t := range ticker.C {
						conn.WriteMessage([]byte(fmt.Sprintf(`"%d"`, t.Second())))
					}
				}()
			} else if string(msg) == `"stop"` {
				ticker.Stop()
				open = false
			}
		}
	}
}
Ejemplo n.º 2
0
func (s *GenericStreamer) SockJSHandler(crudpath string, session sockjs.Conn) {
	localChan := make(chan *Bundle)

	s.bundleChannels = append(s.bundleChannels, localChan)

	if s.debug {
		log.Println("Streams:", len(s.bundleChannels), "- open", crudpath)
	}

	go func() {
		for {
			bundle, ok := <-localChan
			if !ok { // Chanel was closed
				break
			}

			if crudpath != bundle.Val.CRUDPrefix() {
				continue
			}

			json, err := json.Marshal(bundle)

			if err != nil {
				log.Println(err)
				continue // Keep trying!
			}
			_, err = session.WriteMessage(json)
			if err != nil {
				log.Println(err)
				break // Assume connection has died
			}
		}
	}()

	for { // This is needed to catch the closure of the sock
		_, err := session.ReadMessage()
		if err != nil {
			break
		}
	}

	for i, sliceChan := range s.bundleChannels {
		if sliceChan == localChan {
			s.bundleChannels = append(s.bundleChannels[0:i], s.bundleChannels[i+1:len(s.bundleChannels)]...)
			break
		}
	}

	if s.debug {
		log.Println("Streams:", len(s.bundleChannels), "- close", crudpath)
	}

	close(localChan)
}
Ejemplo n.º 3
0
func (self *SockjsDispatcherTransport) ConnectionHandler(session sockjs.Conn) {
	log.Println("Client session created: transport=sockjs)")
	for {
		_, err := session.ReadMessage()
		if err != nil {
			break
		}
		go func() { session.WriteMessage([]byte("{\"Id\":\"PING\", \"Body\":\"Ping\", \"Error\":null}")) }()
		time.Sleep(1 * time.Second)
	}
	log.Println("Client session closed: transport=sockjs")
}
Ejemplo n.º 4
0
func SockJSHandler(session sockjs.Conn) {
	log.Println("Session created")
	for {
		val, err := session.ReadMessage()
		if err != nil {
			break
		}
		go func() { session.WriteMessage(val) }()
	}

	log.Println("session closed")
}
Ejemplo n.º 5
0
func sockEchoHandler(conn sockjs.Conn) {
	log.Println("echo session")

	for {
		if msg, err := conn.ReadMessage(); err != nil {
			log.Println("getting err:", err)
			return
		} else {
			go func() { conn.WriteMessage(msg) }()
		}
	}
}
Ejemplo n.º 6
0
func EchoHandler(conn sockjs.Conn) {
	for {
		if msg, err := conn.ReadMessage(); err == nil {
			_, err := conn.WriteMessage(msg)
			if err != nil {
				log.Fatal(err)
			}
		} else {
			return
		}
	}
}
Ejemplo n.º 7
0
func sockPingHandler(conn sockjs.Conn) {
	log.Println("ping session")
	for {
		if msg, err := conn.ReadMessage(); err != nil {
			log.Println("getting err:", err)
			return
		} else {
			if string(msg) == `"ping"` {
				go func() {
					conn.WriteMessage([]byte(`"pong"`))
				}()
			}
		}
	}
}
Ejemplo n.º 8
0
func sockSineHandler(conn sockjs.Conn) {
	log.Println("sine session")

	var x, y float64
	var sine string

	ticker := time.NewTicker(time.Second)
	open := true

	for {
		if msg, err := conn.ReadMessage(); err != nil {
			log.Println("getting err:", err)
			ticker.Stop()
			open = false
			return
		} else {
			if string(msg) == `"start"` {
				if !open {
					ticker = time.NewTicker(time.Second)
					open = true
				}
				go func() {
					for t := range ticker.C {
						x = float64(t.Nanosecond()) / 1000
						y = 2.5 * (1 + math.Sin(x))
						sine = fmt.Sprintf(`{"x": "%f", "y": "%f"}`, x, y)
						log.Printf(sine)
						conn.WriteMessage([]byte(sine))
					}
				}()
			} else if string(msg) == `"stop"` {
				log.Println("stop sine")
				ticker.Stop()
				open = false
			}
		}
	}
}