func serializeGowebResponse(
c context.Context,
syntaxName string,
statements chan *goraptor.Statement) error {
var str string
if syntaxName == "trig" {
// real trig mode is crashing
serializer := goraptor.NewSerializer("ntriples")
defer serializer.Free()
ntriples, err := serializer.Serialize(statements, "")
if err != nil {
panic(err)
}
log.Printf("got %d bytes of ntriples", len(ntriples))
str = "<http://projects.bigasterisk.com/room/laundryDoor> { " + ntriples + "}"
log.Printf("str now %d bytes", len(str))
} else {
serializer := goraptor.NewSerializer(syntaxName)
defer serializer.Free()
var err error
str, err = serializer.Serialize(statements, "")
if err != nil {
panic(err)
}
}
c.HttpResponseWriter().Header().Set("Content-Type",
goraptor.SerializerSyntax[syntaxName].MimeType)
return goweb.Respond.With(c, 200, []byte(str))
}
func main() {
pins := SetupIo()
goweb.MapStatic("/static", "static")
// this one needs to fail if the hardware is broken in
// any way that we can determine, though I'm not sure
// what that will mean on rpi
goweb.MapStaticFile("/", "index.html")
goweb.Map("GET", "/status", func(c context.Context) error {
jsonEncode := json.NewEncoder(c.HttpResponseWriter())
jsonEncode.Encode(map[string]interface{}{
"motion": pins.GetMotion(),
"switch1": pins.GetSwitch("1"),
"switch2": pins.GetSwitch("2"),
"switch3": pins.GetSwitch("3"),
"doorClosed": pins.GetDoor(),
"led": pins.LastOutLed,
"strike": pins.LastOutStrike,
})
return nil
})
goweb.Map("GET", "/trig", func(c context.Context) error {
statements := make(chan *goraptor.Statement, 100)
close(statements)
serializer := goraptor.NewSerializer("trig")
defer serializer.Free()
str, err := serializer.Serialize(statements, "")
if err != nil {
panic(err)
}
return goweb.Respond.With(c, 200, []byte(str))
})
goweb.Map("GET", "/graph", func(c context.Context) error {
DC := namespace("http://purl.org/dc/terms/")
ROOM := namespace("http://projects.bigasterisk.com/room/")
statements := make(chan *goraptor.Statement, 100)
graph := ROOM("laundryDoor")
_, thisFile, _, _ := runtime.Caller(0)
statements <- &(goraptor.Statement{
graph, DC("creator"), literal(thisFile, nil), graph})
statements <- &(goraptor.Statement{
graph, DC("modified"), nowLiteral(), graph})
for subj, state := range map[*goraptor.Uri]*goraptor.Uri{
ROOM("laundryDoorMotion"): ROOM(pins.GetMotion()),
ROOM("laundryDoorOpen"): ROOM(pins.GetDoor()),
ROOM("laundryDoorSwitch1"): ROOM(pins.GetSwitch("1")),
ROOM("laundryDoorSwitch2"): ROOM(pins.GetSwitch("2")),
ROOM("laundryDoorSwitch3"): ROOM(pins.GetSwitch("3")),
ROOM("laundryDoorLed"): ROOM(pins.GetLed()),
ROOM("laundryDoorStrike"): ROOM(pins.GetStrike()),
} {
statements <- &(goraptor.Statement{subj, ROOM("state"), state, graph})
}
close(statements)
return serializeGowebResponse(c, "nquads", statements)
})
goweb.Map("PUT", "/led", func(c context.Context) error {
body, err := c.RequestBody()
if err != nil {
panic(err)
}
pins.SetLed(string(body))
return goweb.Respond.WithStatusText(c, http.StatusAccepted)
})
goweb.Map("PUT", "/strike", func(c context.Context) error {
body, err := c.RequestBody()
if err != nil {
panic(err)
}
pins.SetStrike(string(body))
return goweb.Respond.WithStatusText(c, http.StatusAccepted)
})
goweb.Map(
"PUT", "/strike/temporaryUnlock",
func(c context.Context) error {
type TemporaryUnlockRequest struct {
Seconds float64
}
var req TemporaryUnlockRequest
err := json.NewDecoder(c.HttpRequest().Body).
Decode(&req)
if err != nil {
panic(err)
}
// This is not correctly reentrant. There should be a
// stack of temporary effects that unpop correctly,
// and status should show you any running effects.
pins.SetStrike("unlocked")
go func() {
time.Sleep(time.Duration(req.Seconds *
float64(time.Second)))
pins.SetStrike("locked")
}()
return goweb.Respond.WithStatusText(
c, http.StatusAccepted)
})
goweb.Map("PUT", "/speaker/beep", func(c context.Context) error {
// queue a beep
return goweb.Respond.WithStatusText(c, http.StatusAccepted)
})
// start input posting loop. add nquads to reasoning2
address := ":8081"
s := &http.Server{
Addr: address,
Handler: goweb.DefaultHttpHandler(),
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
}
log.Printf("Listening on port %s", address)
log.Printf("%s", goweb.DefaultHttpHandler())
listener, listenErr := net.Listen("tcp", address)
if listenErr != nil {
panic(listenErr)
}
s.Serve(listener)
}