[WIP] repository and service encapsulation

.gitignore

@@ -159,4 +159,5 @@ Temporary Items
 
 # CUSTOM
 .env
-config.yml
+gpsconfig.yml
+config.yml

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

cmd/autostart/autostart.go

@@ -0,0 +1,55 @@
+package main
+
+import (
+	"git.timovolkmann.de/gyrogpsc/core"
+	"git.timovolkmann.de/gyrogpsc/database"
+	"git.timovolkmann.de/gyrogpsc/web"
+	"github.com/spf13/viper"
+	"log"
+	"time"
+)
+
+func main() {
+	conf := configurationFromFile()
+
+	repo := database.NewRepository(conf)
+	disp := core.NewDispatcher()
+
+	service := core.TrackingService(repo, disp, conf)
+
+	go func() {
+		service.NewTracking(core.TCP, core.SERIAL)
+		time.Sleep(5 * time.Second)
+		service.StartRecord()
+		time.Sleep(15 * time.Second)
+		service.StopRecord()
+	}()
+
+	web.CreateServer(service, disp, conf)
+}
+
+func configurationFromFile() *core.Configuration {
+	viper.SetDefault("collectors.port_tcp", ":3010")
+	viper.SetDefault("collectors.port_serial", "/dev/tty.usbmodem14201")
+	viper.SetDefault("webserver.port", ":3011")
+	viper.SetDefault("pipeline.publishIntervalMs", 50)
+	viper.SetDefault("pipeline.syncUpdateIntervalMs", 494)
+
+	viper.SetConfigName("gpsconfig") // name of config file (without extension)
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath(".")
+	viper.AddConfigPath("./../../")
+	if err := viper.ReadInConfig(); err != nil {
+		log.Println("couldn't find config file. using standard configuration")
+	}
+	log.Println(viper.AllKeys())
+	log.Println(viper.AllSettings())
+
+	c := core.Configuration{}
+	if err := viper.Unmarshal(&c); err != nil {
+		log.Println("couldn't load config...")
+		log.Println(err)
+	}
+	log.Println(c)
+	return &c
+}

cmd/serial_only/serial_only.go

@@ -1,21 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"git.timovolkmann.de/gyrogpsc/core"
-)
-
-const (
-	SERIAL_PORT = "/dev/tty.usbmodem14201"
-)
-
-func main() {
-	core.SerialCollector(&printer{}, SERIAL_PORT)
-}
-
-type printer struct{}
-
-func (p *printer) Process(data *core.Sensordata) error {
-	fmt.Println(data)
-	return nil
-}

cmd/server/server.go

@@ -2,36 +2,36 @@ package main
 
 import (
 	"git.timovolkmann.de/gyrogpsc/core"
+	"git.timovolkmann.de/gyrogpsc/database"
+	"git.timovolkmann.de/gyrogpsc/web"
+	"github.com/spf13/viper"
 	"log"
-	"os"
-	"runtime"
-)
-
-const (
-	TCP_PORT    = ":3010"
-	HTTP_PORT   = ":3011"
-	SERIAL_PORT = "/dev/tty.usbmodem14201"
 )
 
 func main() {
-	log.Println("GOROOT:", runtime.GOROOT())
+	conf := &core.Configuration{}
-	wd, _ := os.Getwd()
+	configurationFromFile(conf)
-	log.Println("WorkingDir:", wd)
 
-	log.Println("setup dispatcher")
+	repo := database.NewRepository(conf)
-	dispatcher := core.NewDispatcher()
+	disp := core.NewDispatcher()
-	log.Println("initialize processing pipeline")
+
-	processor := core.NewPipeline(dispatcher, 50, 494)
+	service := core.TrackingService(repo, disp, conf)
-	processor.Run()
+
-	collectRoutines(processor)
+	web.CreateServer(service, disp, conf)
-	log.Println("start http server")
-	core.FiberListen(dispatcher)
-	//core.HttpListenAndServe(dispatcher, HTTP_PORT)
 }
 
-func collectRoutines(proc core.Processor) {
+func configurationFromFile(c *core.Configuration) {
-	// collect Sensor data from Serial UBX in Goroutine
+	viper.SetDefault("TcpCollectorPort", ":3010")
-	go core.SerialCollector(proc, SERIAL_PORT)
+	viper.SetDefault("SerialCollectorPort", "/dev/tty.usbmodem14201")
-	// collect Sensor data from JSON over TCP in Goroutine
+	viper.SetDefault("HttpPort", "layouts")
-	go core.TcpCollector(proc, TCP_PORT)
+	viper.SetDefault("publishIntervalMs", 50)
-}
+	viper.SetDefault("syncUpdateIntervalMs", 494)
+
+	viper.SetConfigName("gpsconfig") // name of config file (without extension)
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath(".")
+	viper.AddConfigPath("./../../")
+
+	viper.Unmarshal(c)
+	log.Println(c)
+}

cmd/tcp_only/tcp_only.go

@@ -1,27 +0,0 @@
-package main
-
-import (
-	"git.timovolkmann.de/gyrogpsc/core"
-	"log"
-)
-
-const (
-	TCP_PORT  = ":3010"
-	HTTP_PORT = ":3011"
-)
-
-func main() {
-	log.Println("setup dispatcher")
-	dispatcher := core.NewDispatcher()
-	log.Println("initialize processing pipeline")
-	processor := core.NewPipeline(dispatcher, 50, 494)
-	processor.Run()
-	collectRoutines(processor)
-	log.Println("start http server")
-	core.HttpListenAndServe(dispatcher, HTTP_PORT)
-}
-
-func collectRoutines(proc core.Processor) {
-	// collect Sensor data from JSON over TCP in Goroutine
-	go core.TcpCollector(proc, TCP_PORT)
-}

core/collectors.go

@@ -2,7 +2,6 @@ package core
 
 import (
 	"fmt"
-	"github.com/google/uuid"
 	"log"
 	"net"
 	"os"
@@ -26,7 +25,7 @@ const (
 
 var tcpSingleton *tcpCollector
 
-func NewCollector(typ CollectorType, proc Processor, config *Configuration) Collector {
+func NewCollector(typ CollectorType, proc Pusher, config *Configuration) Collector {
 	var coll Collector
 	switch typ {
 	case SERIAL:
@@ -38,11 +37,6 @@ func NewCollector(typ CollectorType, proc Processor, config *Configuration) Coll
 			tcpSingleton.SetProcessor(proc)
 		}
 		coll = tcpSingleton
-	//case DATABASE:
-	//	if len(trackingId) != 1 {
-	//		panic("only 1 tracking per collector")
-	//	}
-	//	coll = newDbReplay(proc, config, trackingId[0])
 	default:
 		panic("selected collector type not implemented")
 	}
@@ -51,17 +45,18 @@ func NewCollector(typ CollectorType, proc Processor, config *Configuration) Coll
 
 type serialCollector struct {
 	active bool
-	proc   Processor
+	proc   Pusher
 	config *Configuration
 }
 
 func (s *serialCollector) Collect() {
+	s.active = true
 	go func() {
-		log.Println("start serial collectors")
+		log.Println("start serial collector")
 		mode := &serial.Mode{
 			BaudRate: 115200,
 		}
-		port, err := serial.Open(s.config.SerialCollectorPort, mode)
+		port, err := serial.Open(s.config.Collectors.SerialCollectorPort, mode)
 		if err != nil {
 			log.Fatalln(err.Error())
 		}
@@ -79,29 +74,27 @@ func (s *serialCollector) Collect() {
 				break
 			}
 			sd, err := ConvertUbxToSensorData(meas)
-			if err != nil {
+			if err != nil || sd == nil {
-				log.Println("convert err:", err, meas)
+				log.Println("convert err:", err, meas, sd)
-				continue
-			}
-			if sd == nil {
 				continue
 			}
 
+
 			err = s.proc.Push(sd)
 			if err != nil {
 				log.Println("process err:", err, *sd)
 				continue
 			}
 		}
-
+		log.Println("serial collector stopped")
 	}()
 }
 
 func (s *serialCollector) Stop() {
-	panic("implement me")
+	s.active = false
 }
 
-func newSerial(proc Processor, config *Configuration) *serialCollector {
+func newSerial(proc Pusher, config *Configuration) *serialCollector {
 	return &serialCollector{
 		active: false,
 		proc:   proc,
@@ -111,7 +104,7 @@ func newSerial(proc Processor, config *Configuration) *serialCollector {
 
 type tcpCollector struct {
 	active    bool
-	processor Processor
+	processor Pusher
 	//config    *Configuration
 }
 
@@ -123,14 +116,14 @@ func (t *tcpCollector) Stop() {
 	t.active = false
 }
 
-func (t *tcpCollector) SetProcessor(p Processor) {
+func (t *tcpCollector) SetProcessor(p Pusher) {
 	t.processor = p
 }
 
-func newTcp(proc Processor, config *Configuration) *tcpCollector {
+func newTcp(proc Pusher, config *Configuration) *tcpCollector {
 	log.Println("start tcp collector")
 
-	listener, err := net.Listen("tcp", config.TcpCollectorPort)
+	listener, err := net.Listen("tcp", config.Collectors.TcpCollectorPort)
 	if err != nil {
 		fmt.Println("Error listening:", err.Error())
 		//os.Exit(1)
@@ -187,18 +180,4 @@ func (c *tcpCollector) jsonHandler(conn net.Conn) {
 			log.Fatalln(err)
 		}
 	}
-}
+}
-
-type replayCollector struct{}
-
-func (r *replayCollector) Collect() {
-	panic("implement me")
-}
-
-func (r *replayCollector) Stop() {
-	panic("implement me")
-}
-
-func newDbReplay(proc Processor, config *Configuration, trackingId uuid.UUID) *replayCollector {
-	return nil
-}

core/config.go

@@ -1,13 +1,23 @@
 package core
 
 type Configuration struct {
-	TcpCollectorPort     string
+	Collectors struct{
-	SerialCollectorPort  string
+		TcpCollectorPort     string `mapstructure:"porttcp"`
-	HttpPort             string
+		SerialCollectorPort  string `mapstructure:"portserial"`
-	publishIntervalMs    int
+	} `mapstructure:"collectors"`
-	syncUpdateIntervalMs int
+	Webserver struct {
+		Port string `mapstructure:"port"`
+	} `mapstructure:"webserver"`
+	Pipeline struct {
+		PublishIntervalMs    int    `mapstructure:"publishintervalms"`
+		SyncUpdateIntervalMs int    `mapstructure:"syncupdateintervalms"`
+	} `mapstructure:"pipeline"`
 }
 
-func LoadConfigYaml() error {
+type Configuration2 struct {
-	return nil
+	TcpCollectorPort     string `mapstructure:"collectors.porttcp"`
+	SerialCollectorPort  string `mapstructure:"collectors.portserial"`
+	HttpPort             string `mapstructure:"webserver.port"`
+	PublishIntervalMs    int    `mapstructure:"pipeline.publishintervalms"`
+	SyncUpdateIntervalMs int    `mapstructure:"pipeline.syncupdateintervalms"`
 }

core/dispatcher.go

@@ -5,15 +5,6 @@ import (
 	"log"
 )
 
-type Subscriber interface {
-	Subscribe() (int16, <-chan string)
-	Unsubscribe(id int16) error
-}
-
-type Publisher interface {
-	Publish(message string)
-}
-
 type dispatcher struct {
 	listeners map[int16]chan string
 	counter   int16
@@ -26,6 +17,7 @@ func NewDispatcher() *dispatcher {
 	}
 }
 
+
 func (d *dispatcher) Publish(message string) {
 	log.Printf("publish to %v listeners:\n%v\n", len(d.listeners), message)
 	for _, ch := range d.listeners {

core/http.go

@@ -1,142 +0,0 @@
-package core
-
-import (
-	"fmt"
-	"github.com/gofiber/fiber/v2"
-	ws "github.com/gofiber/websocket/v2"
-	"github.com/gorilla/websocket"
-	"html/template"
-	"log"
-	"net/http"
-)
-
-func echo(sub Subscriber) func(w http.ResponseWriter, r *http.Request) {
-	var upgrader = websocket.Upgrader{} // use default options
-	return func(w http.ResponseWriter, r *http.Request) {
-		fmt.Println("upgrading to ws")
-		c, err := upgrader.Upgrade(w, r, nil)
-		if err != nil {
-			log.Print("upgrade:", err)
-			return
-		}
-		//defer c.Close()
-		go func() {
-			for {
-				if _, _, err := c.NextReader(); err != nil {
-					c.Close()
-					break
-				}
-			}
-		}()
-
-		dispatcherId, channel := sub.Subscribe()
-		defer sub.Unsubscribe(dispatcherId)
-		for {
-			//log.Println("")
-			//if err != nil {
-			//	log.Println("read:", err)
-			//	break
-			//}
-			cmsg := <-channel
-			err = c.WriteMessage(websocket.TextMessage, []byte(cmsg))
-			if err != nil {
-				log.Println("write:", err)
-
-				break
-			}
-		}
-	}
-}
-
-func home(w http.ResponseWriter, r *http.Request) {
-	//var homeTemplate = template.Must(template.NewDispatcher("").ParseFiles("index.html"))
-	tpl, err := template.ParseFiles("static/index.html")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	err = tpl.Execute(w, "ws://"+r.Host+"/echo")
-	if err != nil {
-		log.Fatalln(err)
-	}
-}
-
-func HttpListenAndServe(sub Subscriber, httpPort string) {
-	log.Println("register websocket handler")
-	http.HandleFunc("/echo", echo(sub))
-	log.Println("register index handler")
-	http.HandleFunc("/", home)
-	log.Println("register static file handler")
-	http.Handle("/static/", http.FileServer(http.Dir(".")))
-
-	log.Println("start server")
-	log.Fatal(http.ListenAndServe(httpPort, nil))
-}
-
-func FiberListen(sub Subscriber) {
-	app := fiber.New()
-	app.Static("/static", "static")
-
-	// Application Main Page
-	app.Get("/", fiberHomeHandler)
-
-	// Websocket
-	app.Get("/ws", ws.New(createFiberWebsocketHandler(sub)))
-
-	// TODO: Get all SerialPorts
-	app.Get("/serialports")
-
-	// Tracking persistence controls
-	trackings := app.Group("/trackings")
-	trackings.Get("/")    // Get all trackings Metadata
-	trackings.Post("/")   // Initialize new tracking, open websocket and prepare for automatic recording. Toggle ?serial=true and ?tcp=true. Returns trackingId
-	trackings.Patch("/")  // Starts recording
-	trackings.Put("/")    // Stops current recording. Returns trackingId if record was successful
-	trackings.Delete("/") // Stops websocket connection, pipelines and collectors
-
-	trackings.Get("/:trackingId")    // Gets Tracking Metadata and loads sensorRecords from database.
-	trackings.Post("/:trackingId")   // Starts Replay.
-	trackings.Patch("/:trackingId")  // Pauses Replay.
-	trackings.Put("/:trackingId")    // Stops Replay.
-	trackings.Delete("/:trackingId") // Deletes Tracking from database
-
-	log.Fatal(app.Listen(":3011"))
-}
-
-func createFiberWebsocketHandler(s Subscriber) func(conn *ws.Conn) {
-	return func(c *ws.Conn) {
-		// Handle and discard inbound messages
-		go func() {
-			for {
-				if _, _, err := c.NextReader(); err != nil {
-					c.Close()
-					break
-				}
-			}
-		}()
-
-		dispatcherId, channel := s.Subscribe()
-		defer s.Unsubscribe(dispatcherId)
-		for {
-			cmsg := <-channel
-			err := c.WriteMessage(ws.TextMessage, []byte(cmsg))
-			if err != nil {
-				log.Println("write:", err)
-
-				break
-			}
-		}
-	}
-
-}
-
-func fiberHomeHandler(c *fiber.Ctx) error {
-	tpl, err := template.ParseFiles("static/index.html")
-	if err != nil {
-		return err
-	}
-	err = tpl.Execute(c, "ws://"+c.Hostname()+"/ws")
-	if err != nil {
-		return err
-	}
-	return nil
-}

core/interfaces.go

@@ -0,0 +1,46 @@
+package core
+
+import "github.com/google/uuid"
+
+type Subscriber interface {
+	Subscribe() (int16, <-chan string)
+	Unsubscribe(id int16) error
+}
+
+type Publisher interface {
+	Publish(message string)
+}
+
+type Pusher interface {
+	Push(data *sensorData) error
+}
+
+
+type Storer interface {
+	EnqueuePair(tcp sensorData, ser sensorData)
+	EnqueueRaw(data sensorData)
+}
+
+
+
+type Repo interface {
+	Save(tracking Tracking) error
+	LoadAll() ([]TrackingMetadata, error)
+	Load(id uuid.UUID) (Tracking, error)
+}
+
+
+type Service interface {
+	AllTrackings()
+	NewTracking(cols ...CollectorType)
+	StartRecord()
+	StopRecord()
+	Reset()
+
+	LoadTracking(trackingId uuid.UUID)
+	DeleteTracking(trackingId uuid.UUID)
+
+	StartReplay()
+	PauseReplay()
+	StopReplay()
+}

core/pipeline.go

@@ -9,21 +9,9 @@ import (
 	"time"
 )
 
-type Processor interface {
-	Push(data *Sensordata) error
-}
-
-type Pipeline interface {
-	Run()
-	Stop()
-}
-
-type Storer interface {
-	Store(data Sensordata)
-}
-
 type pipeline struct {
 	active        bool
+	record   	  bool
 	syn           synchronizer
 	agr           aggregator
 	pub           Publisher
@@ -31,14 +19,15 @@ type pipeline struct {
 	publishTicker *time.Ticker
 }
 
-// pipe implements Runner & Processor
+// pipe implements Runner & Pusher
 func NewPipeline(d Publisher, s Storer, conf *Configuration) *pipeline {
 	return &pipeline{
+		false,
 		false,
 		synchronizer{
 			//bufferSize:   100,
 			mutex:        &sync.Mutex{},
-			updateTicker: time.NewTicker(time.Duration(conf.syncUpdateIntervalMs) * time.Millisecond),
+			updateTicker: time.NewTicker(time.Duration(conf.Pipeline.SyncUpdateIntervalMs) * time.Millisecond),
 		},
 		aggregator{
 			tcpMutex:    &sync.Mutex{},
@@ -46,11 +35,13 @@ func NewPipeline(d Publisher, s Storer, conf *Configuration) *pipeline {
 		},
 		d,
 		s,
-		time.NewTicker(time.Duration(conf.publishIntervalMs) * time.Millisecond),
+		time.NewTicker(time.Duration(conf.Pipeline.PublishIntervalMs) * time.Millisecond),
 	}
 }
 
 func (p *pipeline) Run() {
+	p.active = true
+	log.Println("pipe: processing service started")
 	go func() {
 		for p.active {
 			<-p.syn.updateTicker.C
@@ -59,7 +50,7 @@ func (p *pipeline) Run() {
 				log.Println(err)
 			}
 		}
-
+		log.Println("pipe: updater stopped")
 	}()
 	go func() {
 		for p.active {
@@ -69,26 +60,34 @@ func (p *pipeline) Run() {
 				log.Println(err)
 			}
 		}
+		log.Println("pipe: publisher stopped")
 	}()
-	log.Println("pipe: processing service started")
+}
+
+func (p *pipeline) Record() {
+	p.record = true
+}
+func (p *pipeline) Stop() {
+	p.record = false
 }
 
 func (p *pipeline) Publish() error {
 	p.agr.tcpMutex.Lock()
 	p.agr.serialMutex.Lock()
-	//log.Println(pub.tcpSensorData)
+
-	//log.Println(pub.serialSensorData)
+	if (p.agr.tcpSensorData == sensorData{} && p.agr.serialSensorData == sensorData{}) {
-	if (p.agr.tcpSensorData == Sensordata{} && p.agr.serialSensorData == Sensordata{}) {
 		p.agr.tcpMutex.Unlock()
 		p.agr.serialMutex.Unlock()
 		return errors.New("no data available")
 	}
-	data := map[string]Sensordata{
+
+	p.stor.EnqueuePair(p.agr.tcpSensorData, p.agr.serialSensorData)
+
+	data := map[string]sensorData{
 		string(SOURCE_TCP):    p.agr.tcpSensorData,
 		string(SOURCE_SERIAL): p.agr.serialSensorData,
 	}
-	//p.agr.tcpSensorData = Sensordata{}
+
-	//p.agr.serialSensorData = Sensordata{}
 	p.agr.tcpMutex.Unlock()
 	p.agr.serialMutex.Unlock()
 
@@ -102,8 +101,8 @@ func (p *pipeline) Publish() error {
 }
 
 type aggregator struct {
-	tcpSensorData    Sensordata
+	tcpSensorData    sensorData
-	serialSensorData Sensordata
+	serialSensorData sensorData
 	tcpMutex         *sync.Mutex
 	serialMutex      *sync.Mutex
 }
@@ -112,20 +111,8 @@ type UnixNanoTime int64
 
 type synchronizer struct {
 	tcpSerialDelayMs int64
-	//tcpBuffer     	map[UnixNanoTime]Sensordata
-	//serialBuffer  	map[UnixNanoTime]Sensordata
-	//bufferSize    	int
 	mutex        *sync.Mutex
 	updateTicker *time.Ticker
-	// should run concurrently
-	//
-	// Methods:
-	// pushSensordata(Sensordata), remove oldest if larger than bufferSize
-	// refreshDelay()
-	// Schedule()
-}
-
-func (p *pipeline) scheduleSynchronizer() {
 }
 
 func (p *pipeline) refreshDelay() error {
@@ -153,13 +140,14 @@ func (p *pipeline) refreshDelay() error {
 	return nil
 }
 
-func (p *pipeline) Push(data *Sensordata) error {
+func (p *pipeline) Push(data *sensorData) error {
 	if data == nil {
 		return errors.New("nil processing not allowed")
 	}
-	//log.Println(string(data.SourceId))
+	//log.Println(string(data.source))
 	// TODO: persist data here with current timestamp
-	switch data.SourceId {
+	p.stor.EnqueueRaw(*data)
+	switch data.source {
 	case SOURCE_TCP:
 		go p.pushTcpDataToBuffer(*data)
 	case SOURCE_SERIAL:
@@ -170,7 +158,7 @@ func (p *pipeline) Push(data *Sensordata) error {
 	return nil
 }
 
-func (p *pipeline) pushTcpDataToBuffer(data Sensordata) {
+func (p *pipeline) pushTcpDataToBuffer(data sensorData) {
 	if p.syn.tcpSerialDelayMs > 0 {
 		time.Sleep(time.Duration(p.syn.tcpSerialDelayMs) * time.Millisecond)
 	}
@@ -178,7 +166,7 @@ func (p *pipeline) pushTcpDataToBuffer(data Sensordata) {
 	p.agr.tcpSensorData = p.agr.tcpSensorData.ConsolidateExTime(data)
 	p.agr.tcpMutex.Unlock()
 }
-func (p *pipeline) pushSerialDataToBuffer(data Sensordata) {
+func (p *pipeline) pushSerialDataToBuffer(data sensorData) {
 	if p.syn.tcpSerialDelayMs < 0 {
 		time.Sleep(time.Duration(-p.syn.tcpSerialDelayMs) * time.Millisecond)
 	}
@@ -187,6 +175,6 @@ func (p *pipeline) pushSerialDataToBuffer(data Sensordata) {
 	p.agr.serialMutex.Unlock()
 }
 
-func (p *pipeline) Stop() {
+func (p *pipeline) Close() {
 	p.active = false
 }

core/repository.go

@@ -1,46 +0,0 @@
-package core
-
-import (
-	"github.com/google/uuid"
-	"sync"
-)
-
-type writeRepo interface {
-	SaveTracking(tracking *Tracking) error
-}
-
-type readRepo interface {
-	AllTrackings() ([]trackingMetadata, error)
-	LoadTracking(id uuid.UUID) (Tracking, error)
-}
-
-type repository struct {
-	repoStubSave
-	loader repoStubLoad
-}
-
-type repoStubSave struct {
-	sensordataBuffer
-}
-type repoStubLoad struct{}
-
-func (r *repoStubSave) SaveTracking(tracking *Tracking) error {
-	panic("implement me")
-}
-
-func (r *repoStubLoad) AllTrackings() ([]trackingMetadata, error) {
-	panic("implement me")
-}
-
-func (r *repoStubLoad) LoadTracking(id uuid.UUID) (Tracking, error) {
-	panic("implement me")
-}
-
-type sensordataBuffer struct {
-	// TODO: database stub
-	data []Sensordata
-	mu   sync.Mutex
-}
-
-func (s *sensordataBuffer) Store(data Sensordata) {
-}

core/sensordata.go

@@ -16,15 +16,26 @@ const (
 	SOURCE_SERIAL sourceId = "SOURCE_SERIAL"
 )
 
-type Sensordata struct {
+type sensorData struct {
 	itow        uint32
-	SourceId    sourceId
+	source      sourceId
 	Timestamp   int64
 	Position    [3]float64
 	Orientation [3]float64
 }
 
-func (s Sensordata) isSameEpoch(n Sensordata) bool {
+type recordPair struct {
+	RecordTime time.Time
+	data 	   map[sourceId]sensorData
+}
+
+type rawRecord struct {
+	RecordTime time.Time
+	sensorData
+}
+
+
+func (s sensorData) isSameEpoch(n sensorData) bool {
 	if n.itow == 0 {
 		return false
 	}
@@ -32,10 +43,10 @@ func (s Sensordata) isSameEpoch(n Sensordata) bool {
 }
 
 // Consolidates two sensordata elements if they are in the same epoch
-func (s Sensordata) ConsolidateEpochsOnly(n Sensordata) Sensordata {
+func (s sensorData) ConsolidateEpochsOnly(n sensorData) sensorData {
 	s.checkSources(&n)
 	if s.isSameEpoch(n) {
-		null := Sensordata{}
+		null := sensorData{}
 
 		if n.Timestamp == null.Timestamp {
 			n.Timestamp = s.Timestamp
@@ -51,9 +62,9 @@ func (s Sensordata) ConsolidateEpochsOnly(n Sensordata) Sensordata {
 }
 
 // Consolidates two sensordata elements but ignores timestamps
-func (s Sensordata) ConsolidateExTime(n Sensordata) Sensordata {
+func (s sensorData) ConsolidateExTime(n sensorData) sensorData {
 	s.checkSources(&n)
-	null := Sensordata{}
+	null := sensorData{}
 
 	if n.Position == null.Position {
 		n.Position = s.Position
@@ -64,11 +75,11 @@ func (s Sensordata) ConsolidateExTime(n Sensordata) Sensordata {
 	return n
 }
 
-func (s *Sensordata) checkSources(n *Sensordata) {
+func (s *sensorData) checkSources(n *sensorData) {
-	if (s.SourceId != n.SourceId && *s != Sensordata{}) {
+	if (s.source != n.source && *s != sensorData{}) {
 		log.Println(s)
 		log.Println(n)
-		log.Fatalln("Do not consolidate Sensordata from different Sources")
+		log.Fatalln("Do not consolidate sensorData from different Sources")
 	}
 }
 
@@ -77,9 +88,9 @@ var (
 	errRawMessage     = errors.New("raw message")
 )
 
-func ConvertUbxToSensorData(msg interface{}) (*Sensordata, error) {
+func ConvertUbxToSensorData(msg interface{}) (*sensorData, error) {
-	sd := &Sensordata{
+	sd := &sensorData{
-		SourceId: SOURCE_SERIAL,
+		source: SOURCE_SERIAL,
 	}
 	switch v := msg.(type) {
 	case *ublox.NavPvt:
@@ -113,14 +124,14 @@ func ConvertUbxToSensorData(msg interface{}) (*Sensordata, error) {
 	return sd, nil
 }
 
-func ConvertSensorDataPhone(jsonData []byte) (*Sensordata, error) {
+func ConvertSensorDataPhone(jsonData []byte) (*sensorData, error) {
 	if gjson.Get(string(jsonData), "os").String() == "hyperimu" {
 		return convertAndroidHyperImu(jsonData)
 	}
 	return convertIPhoneSensorLog(jsonData)
 }
 
-func convertIPhoneSensorLog(jsonData []byte) (*Sensordata, error) {
+func convertIPhoneSensorLog(jsonData []byte) (*sensorData, error) {
 	timestamp := gjson.Get(string(jsonData), "locationTimestamp_since1970").Float()
 	lat := gjson.Get(string(jsonData), "locationLatitude").Float()
 	lon := gjson.Get(string(jsonData), "locationLongitude").Float()
@@ -128,8 +139,8 @@ func convertIPhoneSensorLog(jsonData []byte) (*Sensordata, error) {
 	pitch := gjson.Get(string(jsonData), "motionPitch").Float() * 180 / math.Pi
 	roll := gjson.Get(string(jsonData), "motionRoll").Float() * 180 / math.Pi
 	yaw := gjson.Get(string(jsonData), "motionYaw").Float() * 180 / math.Pi
-	sd := &Sensordata{
+	sd := &sensorData{
-		SourceId:  SOURCE_TCP,
+		source:    SOURCE_TCP,
 		Timestamp: int64(timestamp * float64(time.Second)),
 		//Timestamp:   time.Unix(0, prep.Timestamp * int64(time.Millisecond)),
 		Position:    [3]float64{lat, lon, alt},
@@ -140,7 +151,7 @@ func convertIPhoneSensorLog(jsonData []byte) (*Sensordata, error) {
 	return sd, nil
 }
 
-func convertAndroidHyperImu(jsonData []byte) (*Sensordata, error) {
+func convertAndroidHyperImu(jsonData []byte) (*sensorData, error) {
 	timestamp := gjson.Get(string(jsonData), "Timestamp").Int()
 	lat := gjson.Get(string(jsonData), "GPS.0").Float()
 	lon := gjson.Get(string(jsonData), "GPS.1").Float()
@@ -149,8 +160,8 @@ func convertAndroidHyperImu(jsonData []byte) (*Sensordata, error) {
 	roll := gjson.Get(string(jsonData), "orientation.1").Float()
 	yaw := gjson.Get(string(jsonData), "orientation.2").Float()
 
-	sd := &Sensordata{
+	sd := &sensorData{
-		SourceId:  SOURCE_TCP,
+		source:    SOURCE_TCP,
 		Timestamp: timestamp * int64(time.Millisecond),
 		//Timestamp:   time.Unix(0, prep.Timestamp * int64(time.Millisecond)),
 		Position:    [3]float64{lat, lon, alt},

core/service.go

@@ -0,0 +1,107 @@
+package core
+
+import (
+    "github.com/google/uuid"
+    "log"
+    "time"
+)
+
+type OpMode uint8
+
+const (
+    STOPPED OpMode = iota
+    LIVE
+    REPLAY
+)
+
+type trackingService struct {
+    current    *Tracking
+    config     *Configuration
+    pipe       *pipeline
+    repo       Repo
+    opMode     OpMode
+    collectors []Collector
+}
+
+func TrackingService(r Repo, d Publisher, c *Configuration) *trackingService {
+    t := &Tracking{}
+    return &trackingService{
+        current:    t,
+        opMode:     STOPPED,
+        config:     c,
+        repo:       r,
+        pipe:       NewPipeline(d, t, c),
+        collectors: nil,
+    }
+}
+
+func (t *trackingService) AllTrackings() {
+    panic("implement me")
+}
+
+func (t *trackingService) NewTracking(cols ...CollectorType) {
+    log.Println("new tracking:", cols)
+    t.opMode = LIVE
+    t.collectors = nil
+    for _, col := range cols {
+        t.collectors = append(t.collectors, NewCollector(col, t.pipe, t.config))
+    }
+    *t.current = emptyTracking()
+    t.current.collectors = cols
+    for _, e := range t.collectors {
+        e.Collect()
+    }
+    t.pipe.Run()
+
+}
+
+func (t *trackingService) StartRecord() {
+    if t.opMode != LIVE {
+        log.Println("trackingservice: wrong mode of operation")
+    }
+    t.current.TimeCreated = time.Now()
+    t.pipe.Record()
+}
+
+func (t *trackingService) StopRecord() {
+    if t.opMode != LIVE {
+        log.Println("trackingservice: wrong mode of operation")
+    }
+    t.pipe.Stop()
+    for _, e := range t.collectors {
+        e.Stop()
+    }
+    err := t.repo.Save(*t.current)
+    if err != nil {
+        log.Println(err)
+    }
+    t.NewTracking(t.current.collectors...)
+}
+
+func (t *trackingService) Reset() {
+    t.opMode = STOPPED
+    t.collectors = nil
+}
+
+
+func (t *trackingService) DeleteTracking(trackingId uuid.UUID) {
+    panic("implement me")
+}
+
+func (t *trackingService) StartReplay() {
+    panic("implement me")
+}
+
+func (t *trackingService) PauseReplay() {
+    panic("implement me")
+}
+
+func (t *trackingService) StopReplay() {
+    panic("implement me")
+}
+
+func (t *trackingService) LoadTracking(trackingId uuid.UUID) {
+
+}
+
+

core/trackings.go

@@ -1,106 +1,61 @@
 package core
 
 import (
-	"github.com/google/uuid"
+    "github.com/google/uuid"
-	"log"
+    "log"
-	"time"
+    "sync"
+    "time"
 )
 
-type OpMode uint8
-
-const (
-	STOPPED OpMode = iota
-	LIVE
-	REPLAY
-)
-
-type TrackingService struct {
-	Current    *Tracking
-	config     *Configuration
-	repo       *repository
-	pipe       *pipeline
-	opMode     OpMode
-	collectors []Collector
-	//publish    Publisher
-}
-
 type Tracking struct {
-	trackingMetadata
+    TrackingMetadata
-	data []*sensorRecord
+    Records []recordPair
-}
+    Rawdata []rawRecord
-
+    mu     sync.Mutex
-type trackingMetadata struct {
-	UUID        uuid.UUID
-	TimeCreated time.Time
-}
-
-type sensorRecord struct {
-	RecordTime time.Time
-	Sensordata
-}
-
-func Service(c *Configuration) *TrackingService {
-	d := NewDispatcher()
-	r := &repository{}
-	return &TrackingService{
-		Current:    nil,
-		opMode:     STOPPED,
-		config:     c,
-		repo:       r,
-		pipe:       NewPipeline(d, r, c),
-		collectors: nil,
-	}
-}
-
-func (t *TrackingService) NewTracking(cols ...CollectorType) {
-	t.opMode = LIVE
-	for _, col := range cols {
-		t.collectors = append(t.collectors, NewCollector(col, t.pipe, t.config))
-	}
-	t.Current = emptyTracking()
-}
-
-func (t *TrackingService) StartRecord() {
-	if t.opMode != LIVE {
-		log.Println("trackingservice: wrong mode of operation")
-	}
-	t.pipe.Run()
-	for _, e := range t.collectors {
-		e.Collect()
-	}
-}
-
-func (t *TrackingService) StopRecord() {
-	if t.opMode != LIVE {
-		log.Println("trackingservice: wrong mode of operation")
-	}
-	t.pipe.Stop()
-	for _, e := range t.collectors {
-		e.Stop()
-	}
-	err := t.repo.SaveTracking(t.Current)
-	if err != nil {
-		log.Println(err)
-	}
-	t.Current = emptyTracking()
-}
-
-func (t *TrackingService) Reset() {
-}
-
-func (t *TrackingService) LoadTrackings() {
 
 }
 
-func (t *TrackingService) LoadTracking(trackingId uuid.UUID) {
+type TrackingMetadata struct {
-
+    UUID        uuid.UUID
+    TimeCreated time.Time
+    collectors  []CollectorType
 }
 
-func emptyTracking() *Tracking {
+func (s *Tracking) EnqueuePair(tcp sensorData, ser sensorData) {
-	return &Tracking{
+    s.mu.Lock()
-		trackingMetadata: trackingMetadata{
+    defer s.mu.Unlock()
-			UUID: uuid.New(),
+    rp := recordPair{
-		},
+        RecordTime: time.Now(),
-		data: []*sensorRecord{},
+        data: map[sourceId]sensorData{
-	}
+            tcp.source: tcp,
+            ser.source: ser,
+        },
+    }
+    s.Records = append(s.Records, rp)
+    log.Println("tracking Records: len->", len(s.Records))
+}
+
+func (s *Tracking) EnqueueRaw(data sensorData) {
+    s.mu.Lock()
+    defer s.mu.Unlock()
+    sr := rawRecord{
+        time.Now(),
+        data,
+    }
+    s.Rawdata = append(s.Rawdata, sr)
+    log.Println("raw data points: len->", len(s.Records))
+}
+
+func emptyTracking() Tracking {
+    return Tracking{
+        TrackingMetadata: TrackingMetadata{
+            UUID: uuid.New(),
+        },
+        Records: []recordPair{},
+        Rawdata: []rawRecord{},
+    }
+}
+
+func (s *Tracking) isEmpty() bool {
+    return len(s.Rawdata) + len(s.Records) == 0
 }

database/repository.go

@@ -0,0 +1,27 @@
+package database
+
+import (
+	"git.timovolkmann.de/gyrogpsc/core"
+	"github.com/google/uuid"
+)
+
+// Must implement Repo
+type repository struct {
+}
+
+func NewRepository(c *core.Configuration) *repository {
+	return &repository{}
+}
+
+func (r *repository) Save(tracking core.Tracking) error {
+	panic("implement me")
+}
+
+func (r *repository) LoadAll() ([]core.TrackingMetadata, error) {
+	panic("implement me")
+}
+
+func (r *repository) Load(id uuid.UUID) (core.Tracking, error) {
+	panic("implement me")
+}
+

example_config.yml

@@ -1,12 +1,13 @@
-# Server configurations
+# server configurations
-server:
+webserver:
-  port: 8000
+  port: ":3011"
 
+# collector configurations
 collectors:
-  port_tcp:
+  porttcp: ":3010"
-  port_serial:
+  portserial: "/dev/tty.usbmodem14201"
 
-# Database credentials
+# processing pipeline configurations
-database:
+pipeline:
-  user: "admin"
+  publishIntervalMs: 50
-  pass: "super-pedro-1980"
+  syncUpdateIntervalMs: 494

go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/gofiber/websocket/v2 v2.0.2
 	github.com/google/uuid v1.1.2
 	github.com/gorilla/websocket v1.4.2
+	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.6.1 // indirect
 	github.com/tidwall/gjson v1.6.0
 	github.com/tidwall/pretty v1.0.2 // indirect

go.sum

@@ -1,48 +1,203 @@
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+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
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@@ -50,6 +205,7 @@ github.com/tidwall/match v1.0.1/go.mod h1:LujAq0jyVjBy028G1WhWfIzbpQfMO8bBZ6Tyb0
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@@ -91,16 +304,72 @@ golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -116,3 +385,4 @@ modernc.org/ql v1.1.0/go.mod h1:Fj1ylcVyzcu/fgWZTrvBO9j/aEUg/ixLFnGtmzh7quI=
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+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=

web/http.go

@@ -0,0 +1,85 @@
+package web
+
+import (
+	"git.timovolkmann.de/gyrogpsc/core"
+	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/websocket/v2"
+	"html/template"
+	"log"
+)
+
+func CreateServer(s core.Service, sub core.Subscriber, c *core.Configuration) {
+	app := fiber.New()
+	app.Static("/static", "static")
+
+	// Application Main Page
+	app.Get("/", fiberHomeHandler)
+
+	// Websocket
+	app.Get("/", websocket.New(createFiberWebsocketHandler(sub)))
+
+	// TODO: Get all SerialPorts
+	// app.Get("/serialports")
+
+	// Tracking persistence controls
+	trackings := app.Group("/trackings")
+	trackings.Get("/", stubhander())    // Get all trackings Metadata
+	trackings.Post("/", stubhander())   // Initialize new tracking, open websocket and prepare for automatic recording. Toggle ?serial=true and ?tcp=true. Returns trackingId
+	trackings.Patch("/", stubhander())  // Starts recording
+	trackings.Put("/", stubhander())    // Stops current recording. Returns trackingId if record was successful
+	trackings.Delete("/", stubhander()) // Stops websocket connection, pipelines and collectors
+
+	trackings.Get("/:trackingId", stubhander())    // Gets Tracking Metadata and loads sensorRecords from database.
+	trackings.Delete("/:trackingId", stubhander()) // Deletes Tracking from database
+
+	trackings.Post("/current", stubhander())   // Starts Replay.
+	trackings.Patch("/current", stubhander())  // Pauses Replay.
+	trackings.Put("/current", stubhander())    // Stops Replay.
+
+	log.Fatal(app.Listen(c.Webserver.Port))
+}
+
+func stubhander() fiber.Handler {
+	return func(ctx *fiber.Ctx) error {
+		return nil
+	}
+}
+
+func createFiberWebsocketHandler(s core.Subscriber) func(conn *websocket.Conn) {
+	return func(c *websocket.Conn) {
+		// Handle and discard inbound messages
+		go func() {
+			for {
+				if _, _, err := c.NextReader(); err != nil {
+					c.Close()
+					break
+				}
+			}
+		}()
+
+		dispatcherId, channel := s.Subscribe()
+		defer s.Unsubscribe(dispatcherId)
+		for {
+			cmsg := <-channel
+			err := c.WriteMessage(websocket.TextMessage, []byte(cmsg))
+			if err != nil {
+				log.Println("write:", err)
+
+				break
+			}
+		}
+	}
+
+}
+
+func fiberHomeHandler(c *fiber.Ctx) error {
+	tpl, err := template.ParseFiles("static/index.html")
+	if err != nil {
+		return err
+	}
+	err = tpl.Execute(c, "://"+c.Hostname()+"/")
+	if err != nil {
+		return err
+	}
+	return nil
+}