add dbm new model and fixed json_data

dbm/db.go

@@ -21,7 +21,7 @@ func (d *DBMHandler) SaveData(c *gin.Context) {
 	}
 
 	r := json_dataModels.NewResponse()
-	r.SetMessage(fmt.Sprintf("DBM %d datapoints saved in: %v", d.GetNumbersOfDatapoints(), time.Since(s)))
+	r.SetMessage(fmt.Sprintf("DBM %d datapoints saved in: %v", d.DBM.GetNumbersOfDatapoints(), time.Since(s)))
-	d.Log.Info("db.SaveData", fmt.Sprintf("DBM %d datapoints saved in: %v", d.GetNumbersOfDatapoints(), time.Since(s)))
+	d.Log.Info("db.SaveData", fmt.Sprintf("DBM %d datapoints saved in: %v", d.DBM.GetNumbersOfDatapoints(), time.Since(s)))
 	c.JSON(http.StatusOK, r)
 }

dbm/dbmHandler.go

@@ -12,23 +12,23 @@ import (
 	"github.com/tecamino/tecamino-dbm/args"
 	"github.com/tecamino/tecamino-dbm/models"
 	serverModels "github.com/tecamino/tecamino-dbm/server/models"
-	json_dataModels "github.com/tecamino/tecamino-json_data/models"
 	"github.com/tecamino/tecamino-logger/logging"
 )
 
 type DBMHandler struct {
-	filePath string
+	DBM   *models.DBM
-	DB       models.Datapoint
 	Conns *serverModels.Connections
 	sync.RWMutex
 	Log      *logging.Logger
 	arg      *args.Args
+	filePath string
 }
 
 // initialze new Database Manager
 // it will call cli arguments
 func NewDbmHandler(a *args.Args) (*DBMHandler, error) {
 
+	//initialize new logger
 	logger, err := logging.NewLogger("dbmServer.log", &logging.Config{
 		MaxSize:     1,
 		MaxBackup:   3,
@@ -42,12 +42,16 @@ func NewDbmHandler(a *args.Args) (*DBMHandler, error) {
 	}
 	logger.Info("main", "start dma handler")
 
+	//initialize connection map
+	conns := serverModels.NewConnections()
+
 	// Initialize dtabase manager handler
 	dmaHandler := DBMHandler{
 		arg:      a,
 		filePath: fmt.Sprintf("%s/%s.dbm", a.RootDir, a.DBMFile),
+		DBM:      models.NewDBM(conns, logger),
 		Log:      logger,
-		Conns:    serverModels.NewConnections(),
+		Conns:    conns,
 	}
 
 	// initialize system datapoint and periodically update it
@@ -67,16 +71,20 @@ func NewDbmHandler(a *args.Args) (*DBMHandler, error) {
 
 		// read in dtaabase file content
 		scanner := bufio.NewScanner(f)
-
+		var line int
 		for scanner.Scan() {
+			line++
 			dp := models.Datapoint{}
 			if err = json.Unmarshal(scanner.Bytes(), &dp); err != nil {
+				dmaHandler.Log.Error("dmbHandler.NewDmbHandler", "error in line "+fmt.Sprint(line)+" "+scanner.Text())
+				dmaHandler.Log.Error("dmbHandler.NewDmbHandler", err.Error())
+
 				return nil, err
 			}
-			dmaHandler.ImportDatapoints(dp)
+			dmaHandler.DBM.ImportDatapoints(dp)
 		}
 	}
-	dmaHandler.Log.Info("dmbHandler.NewDmbHandler", fmt.Sprintf("%d datapoint imported in %v", dmaHandler.GetNumbersOfDatapoints(), time.Since(s)))
+	dmaHandler.Log.Info("dmbHandler.NewDmbHandler", fmt.Sprintf("%d datapoint imported in %v", dmaHandler.DBM.GetNumbersOfDatapoints(), time.Since(s)))
 	return &dmaHandler, nil
 }
 
@@ -87,7 +95,7 @@ func (d *DBMHandler) SaveDb() (err error) {
 	}
 	defer f.Close()
 
-	for _, dp := range d.DB.GetAllDatapoints(0) {
+	for _, dp := range d.DBM.GetAllDatapoints(0) {
 		//exclude System datapoints from saving
 		//System datapoints are used for internal purposes and should not be saved in the database
 		if strings.Contains(dp.Path, "System:") {
@@ -110,59 +118,3 @@ func (d *DBMHandler) SaveDb() (err error) {
 	}
 	return
 }
-
-func (d *DBMHandler) CreateDatapoints(sets ...json_dataModels.Set) ([]json_dataModels.Set, error) {
-	if len(sets) == 0 {
-		return nil, nil
-	}
-
-	dps, err := d.DB.CreateDatapoints(d.Conns, sets...)
-	if err != nil {
-		return nil, err
-	}
-
-	var ndp uint64
-	for _, dp := range dps {
-		if !dp.Updated {
-			ndp++
-		}
-	}
-	dp := d.QueryDatapoints(1, "System:Datapoints")
-	d.UpdateDatapointValue("System:Datapoints", dp[0].GetValueUint64()+ndp)
-	return dps, nil
-}
-
-func (d *DBMHandler) ImportDatapoints(dps ...models.Datapoint) error {
-	for _, dp := range dps {
-		err := d.DB.ImportDatapoint(d.Conns, dp, dp.Path)
-		if err != nil {
-			return err
-		}
-		dps := d.QueryDatapoints(1, "System:Datapoints")
-		d.UpdateDatapointValue("System:Datapoints", dps[0].GetValueUint64()+1)
-	}
-	return nil
-}
-
-func (d *DBMHandler) UpdateDatapointValue(path string, value any) error {
-	return d.DB.UpdateDatapointValue(d.Conns, value, path)
-}
-
-func (d *DBMHandler) RemoveDatapoint(sets ...json_dataModels.Set) ([]json_dataModels.Set, error) {
-	var lsRemoved []json_dataModels.Set
-	for _, set := range sets {
-		removed, err := d.DB.RemoveDatapoint(d.Conns, set)
-		if err != nil {
-			return lsRemoved, err
-		}
-		lsRemoved = append(lsRemoved, removed)
-		dp := d.QueryDatapoints(1, "System:Datapoints")
-		d.UpdateDatapointValue("System:Datapoints", dp[0].GetValueUint64()-1)
-	}
-
-	return lsRemoved, nil
-}
-
-func (d *DBMHandler) QueryDatapoints(depth uint, key string) []*models.Datapoint {
-	return d.DB.QueryDatapoints(depth, key)
-}

dbm/get.go

@@ -22,7 +22,7 @@ func (d *DBMHandler) Get(req *json_dataModels.Request, id string) {
 			depth = get.Query.Depth
 		}
 
-		for _, dp := range d.DB.QueryDatapoints(depth, get.Path) {
+		for _, dp := range d.DBM.QueryDatapoints(depth, get.Uuid, get.Path) {
 			resp.AddGet(json_dataModels.Get{
 				Uuid:   dp.Uuid,
 				Path:   dp.Path,

dbm/json_data.go

@@ -9,6 +9,7 @@ import (
 )
 
 func (d *DBMHandler) Json_Data(c *gin.Context) {
+
 	var err error
 	payload, err := json_data.ParseRequest(c.Request.Body)
 	if err != nil {
@@ -27,8 +28,7 @@ func (d *DBMHandler) Json_Data(c *gin.Context) {
 			if get.Query != nil {
 				depth = get.Query.Depth
 			}
-
+			for _, res := range d.DBM.QueryDatapoints(depth, get.Uuid, get.Path) {
-			for _, res := range d.QueryDatapoints(depth, get.Path) {
 				respond.AddGet(json_dataModels.Get{
 					Uuid:    res.Uuid,
 					Path:    res.Path,
@@ -42,7 +42,7 @@ func (d *DBMHandler) Json_Data(c *gin.Context) {
 
 	}
 	if payload.Set != nil {
-		respond.Set, err = d.CreateDatapoints(payload.Set...)
+		respond.Set, err = d.DBM.CreateDatapoints(payload.Set...)
 		if err != nil {
 			r := json_data.NewResponse()
 			r.SetError()
@@ -70,7 +70,7 @@ func (d *DBMHandler) Delete(c *gin.Context) {
 
 	if payload.Set != nil {
 
-		response.Set, err = d.RemoveDatapoint(payload.Set...)
+		response.Set, err = d.DBM.RemoveDatapoint(payload.Set...)
 		if err != nil {
 			r := json_data.NewResponse()
 			r.SetError()

dbm/set.go

@@ -14,7 +14,7 @@ func (d *DBMHandler) Set(req *json_dataModels.Request) {
 	defer d.RUnlock()
 
 	for _, set := range req.Set {
-		for _, dp := range d.DB.QueryDatapoints(1, set.Path) {
+		for _, dp := range d.DBM.QueryDatapoints(1, set.Uuid, set.Path) {
 			dp.UpdateValue(d.Conns, set.Value)
 		}
 	}

dbm/subscribe.go

@@ -18,7 +18,7 @@ func (d *DBMHandler) Subscribe(req *json_dataModels.Request, id string) {
 	resp.Id = req.Id
 
 	for _, sub := range req.Subscribe {
-		for _, dp := range d.DB.QueryDatapoints(sub.Depth, sub.Path) {
+		for _, dp := range d.DBM.QueryDatapoints(sub.Depth, sub.Uuid, sub.Path) {
 			if sub.Driver != "" {
 				if dp.Drivers == nil || dp.Drivers[sub.Driver] == nil {
 					continue
@@ -51,9 +51,10 @@ func (d *DBMHandler) Unsubscribe(req *json_dataModels.Request, id string) {
 	defer d.RUnlock()
 
 	resp := json_dataModels.NewResponse()
+	resp.Id = req.Id
 
 	for _, sub := range req.Unsubscribe {
-		for _, dp := range d.DB.QueryDatapoints(sub.Depth, sub.Path) {
+		for _, dp := range d.DBM.QueryDatapoints(sub.Depth, sub.Uuid, sub.Path) {
 			if _, ok := dp.Subscriptions[id]; !ok {
 				continue
 			}
@@ -64,7 +65,6 @@ func (d *DBMHandler) Unsubscribe(req *json_dataModels.Request, id string) {
 			})
 		}
 	}
-
 	if err := d.Conns.SendResponse(id, resp); err != nil {
 		d.Log.Error("subscribe.Unsubscribe", err.Error())
 	}

dbm/system.go

@@ -1,11 +1,8 @@
 package dbm
 
 import (
-	"fmt"
+	"github.com/google/uuid"
-	"runtime"
+	"github.com/tecamino/tecamino-dbm/models"
-	"time"
-
-	"github.com/tecamino/tecamino-dbm/utils"
 	json_dataModels "github.com/tecamino/tecamino-json_data/models"
 )
 
@@ -14,84 +11,19 @@ func (d *DBMHandler) AddSystemDps() (err error) {
 
 	typ := json_dataModels.LOU
 	rights := json_dataModels.Read
-	_, err = d.DB.CreateDatapoints(d.Conns, json_dataModels.Set{Path: path, Value: 0, Type: typ, Rights: rights})
+	_, err = d.DBM.CreateDatapoints(json_dataModels.Set{Path: path, Value: 0, Type: typ, Rights: rights})
 	if err != nil {
 		d.Log.Error("dmb.Handler.AddSystemDps", err.Error())
 		return err
 	}
-	dp := d.QueryDatapoints(1, path)
+	models.SystemDatapoints = d.DBM.QueryDatapoints(1, uuid.Nil, path)[0].Uuid
-	d.UpdateDatapointValue(path, dp[0].GetValueUint64()+1)
 
-	if err = d.GoSystemTime(); err != nil {
+	if err = d.DBM.GoSystemTime(); err != nil {
 		return err
 	}
 
-	if err = d.GoSystemMemory(); err != nil {
+	if err = d.DBM.GoSystemMemory(); err != nil {
 		return err
 	}
 	return
 }
-
-func (d *DBMHandler) GetNumbersOfDatapoints() uint64 {
-	return utils.Uint64From(d.DB.Datapoints["System"].Datapoints["Datapoints"].Value)
-}
-
-func (d *DBMHandler) GoSystemTime() error {
-	path := "System:Time"
-	var tOld int64
-
-	typ := json_dataModels.STR
-	rights := json_dataModels.Read
-	_, err := d.DB.CreateDatapoints(d.Conns, json_dataModels.Set{Path: path, Type: typ, Rights: rights})
-	if err != nil {
-		d.Log.Error("system.GoSystemTime", err.Error())
-		return err
-	}
-	dp := d.QueryDatapoints(1, "System:Datapoints")
-	d.UpdateDatapointValue("System:Datapoints", dp[0].GetValueUint64()+1)
-
-	go func() {
-		for {
-			t := time.Now().UnixMilli()
-			if tOld != t {
-				if er := d.DB.UpdateDatapointValue(d.Conns, time.UnixMilli(t).Format("2006-01-02 15:04:05"), path); er != nil {
-					d.Log.Error("dmb.Handler.AddSystemDps.UpdateDatapointValue", er.Error())
-				}
-				tOld = t
-			}
-			time.Sleep(time.Second)
-		}
-	}()
-	return nil
-}
-
-func (d *DBMHandler) GoSystemMemory() error {
-	path := "System:UsedMemory"
-	var m runtime.MemStats
-	var mOld uint64
-
-	typ := json_dataModels.STR
-	rights := json_dataModels.Read
-	_, err := d.DB.CreateDatapoints(d.Conns, json_dataModels.Set{Path: path, Type: typ, Rights: rights})
-	if err != nil {
-		d.Log.Error("system.GoSystemMemory", err.Error())
-		return err
-	}
-	dp := d.QueryDatapoints(1, "System:Datapoints")
-	d.UpdateDatapointValue("System:Datapoints", dp[0].GetValueUint64()+1)
-
-	go func() {
-		for {
-			runtime.ReadMemStats(&m)
-			if m.Sys != mOld {
-				mem := fmt.Sprintf("%.2f MB", float64(m.Sys)/1024/1024)
-				if er := d.DB.UpdateDatapointValue(d.Conns, mem, path); er != nil {
-					d.Log.Error("dmb.Handler.AddSystemDps.UpdateDatapointValue", er.Error())
-				}
-				mOld = m.Sys
-			}
-			time.Sleep(time.Second)
-		}
-	}()
-	return nil
-}

dbm/webSocket.go

@@ -72,10 +72,12 @@ func (d *DBMHandler) readJsonData(id string) (request *json_dataModels.Request,
 
 	_, reader, err := client.Conn.Reader(client.Ctx)
 	if err != nil {
-		return request, err
+		d.Log.Info("webSocket.readJsonData", fmt.Sprintf("WebSocket reader: %v\n", err))
+		return request, nil
 	}
 
 	b, err := io.ReadAll(reader)
+
 	if err != nil {
 		code := websocket.CloseStatus(err)
 

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/coder/websocket v1.8.13
 	github.com/gin-gonic/gin v1.10.0
 	github.com/google/uuid v1.6.0
-	github.com/tecamino/tecamino-json_data v0.0.12
+	github.com/tecamino/tecamino-json_data v0.0.13
 	github.com/tecamino/tecamino-logger v0.2.0
 )
 

go.sum

@@ -63,8 +63,8 @@ github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/tecamino/tecamino-json_data v0.0.12 h1:S4Y+WcfQNrin7P73ZI+4eJWh62IwJVhriRsPGGM8N34=
+github.com/tecamino/tecamino-json_data v0.0.13 h1:hugbmCgXXh0F7YQAEbbJYHkSdq1caejD7SajDiMs42I=
-github.com/tecamino/tecamino-json_data v0.0.12/go.mod h1:LLlyD7Wwqplb2BP4PeO86EokEcTRidlW5MwgPd1T2JY=
+github.com/tecamino/tecamino-json_data v0.0.13/go.mod h1:LLlyD7Wwqplb2BP4PeO86EokEcTRidlW5MwgPd1T2JY=
 github.com/tecamino/tecamino-logger v0.2.0 h1:NPH/Gg9qRhmVoW8b39i1eXu/LEftHc74nyISpcRG+XU=
 github.com/tecamino/tecamino-logger v0.2.0/go.mod h1:0M1E9Uei/qw3e3WA1x3lBo1eP3H5oeYE7GjYrMahnj8=
 github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI=

models/datapoint.go

@@ -87,10 +87,13 @@ func (d *Datapoint) GetValueUint64() uint64 {
 	return utils.Uint64From(d.Value)
 }
 
-func (d *Datapoint) CreateDatapoints(conns *serverModels.Connections, sets ...json_dataModels.Set) (created []json_dataModels.Set, err error) {
+func (d *Datapoint) CreateDatapoints(conns *serverModels.Connections, sets ...json_dataModels.Set) (created []json_dataModels.Set, uuids Uuids, err error) {
 	if len(sets) == 0 {
 		return
 	}
+
+	uuids = make(Uuids, 1)
+
 	for _, dp := range sets {
 		parts := strings.Split(dp.Path, ":")
 
@@ -105,7 +108,7 @@ func (d *Datapoint) CreateDatapoints(conns *serverModels.Connections, sets ...js
 				if existing, ok := current.Datapoints[part]; ok {
 					publish, err := existing.Set("", dp)
 					if err != nil {
-						return nil, err
+						return nil, nil, err
 					}
 					created = append(created, json_dataModels.Set{
 						Uuid:    existing.Uuid,
@@ -130,7 +133,7 @@ func (d *Datapoint) CreateDatapoints(conns *serverModels.Connections, sets ...js
 					current.Datapoints[part] = &ndp
 					publish, err := ndp.Set(strings.Join(parts, ":"), dp)
 					if err != nil {
-						return nil, err
+						return nil, nil, err
 					}
 					created = append(created, json_dataModels.Set{
 						Uuid:   ndp.Uuid,
@@ -143,6 +146,8 @@ func (d *Datapoint) CreateDatapoints(conns *serverModels.Connections, sets ...js
 					if publish {
 						current.Publish(conns, OnChange)
 					}
+					//add uuid to flat map for faster lookuo
+					uuids[ndp.Uuid] = &ndp
 				}
 			}
 
@@ -173,15 +178,20 @@ func (d *Datapoint) CreateDatapoints(conns *serverModels.Connections, sets ...js
 
 				current.Datapoints[part] = newDp
 				current = newDp
+
+				//add uuid to flat map for faster lookuo
+				uuids[newDp.Uuid] = newDp
 			}
 		}
 	}
 	return
 }
 
-func (d *Datapoint) ImportDatapoint(conns *serverModels.Connections, dp Datapoint, path string) error {
+func (d *Datapoint) ImportDatapoint(conns *serverModels.Connections, dp Datapoint, path string) (uuids Uuids, err error) {
 	parts := strings.Split(dp.Path, ":")
 
+	uuids = make(Uuids, 1)
+
 	current := d
 	for i, part := range parts {
 		if current.Datapoints == nil {
@@ -202,9 +212,12 @@ func (d *Datapoint) ImportDatapoint(conns *serverModels.Connections, dp Datapoin
 				dp.UpdateDateTime = time.Now().UnixMilli()
 				dp.Subscriptions = InitSubscribtion()
 				current.Datapoints[part] = &dp
+				//add uuid to flat map for faster lookuo
+				uuids[dp.Uuid] = &dp
 				dp.Publish(conns, OnChange)
 			}
-			return nil
+
+			return uuids, nil
 		}
 
 		// Traverse or create intermediate nodes
@@ -220,9 +233,11 @@ func (d *Datapoint) ImportDatapoint(conns *serverModels.Connections, dp Datapoin
 			newDp.ReadWrite = newDp.ReadWrite.GetRights()
 			current.Datapoints[part] = newDp
 			current = newDp
+			//add uuid to flat map for faster lookuo
+			uuids[newDp.Uuid] = newDp
 		}
 	}
-	return nil
+	return uuids, nil
 }
 
 func (d *Datapoint) UpdateDatapointValue(conns *serverModels.Connections, value any, path string) error {

models/dbm.go

@@ -0,0 +1,190 @@
+package models
+
+import (
+	"fmt"
+	"runtime"
+	"time"
+
+	"maps"
+
+	"github.com/google/uuid"
+	serverModels "github.com/tecamino/tecamino-dbm/server/models"
+	"github.com/tecamino/tecamino-dbm/utils"
+	json_dataModels "github.com/tecamino/tecamino-json_data/models"
+	"github.com/tecamino/tecamino-logger/logging"
+)
+
+type DBM struct {
+	Datapoints Datapoint
+	Uuids      Uuids
+	Conns      *serverModels.Connections
+	Log        *logging.Logger
+}
+
+var SystemDatapoints uuid.UUID
+
+func NewDBM(conns *serverModels.Connections, log *logging.Logger) *DBM {
+	return &DBM{
+		Datapoints: Datapoint{},
+		Uuids:      make(Uuids),
+		Conns:      conns,
+		Log:        log,
+	}
+}
+
+func (d *DBM) CreateDatapoints(sets ...json_dataModels.Set) ([]json_dataModels.Set, error) {
+	if len(sets) == 0 {
+		return nil, nil
+	}
+
+	dps, uuids, err := d.Datapoints.CreateDatapoints(d.Conns, sets...)
+
+	//save uuid in seperate map for fast look up
+	maps.Copy(d.Uuids, uuids)
+
+	if err != nil {
+		return nil, err
+	}
+
+	var ndp uint64
+	for _, dp := range dps {
+		if !dp.Updated {
+			ndp++
+		}
+	}
+
+	d.ModifyCountedDatapoints(ndp, false)
+	return dps, nil
+}
+
+func (d *DBM) ImportDatapoints(dps ...Datapoint) error {
+	for _, dp := range dps {
+		uuids, err := d.Datapoints.ImportDatapoint(d.Conns, dp, dp.Path)
+		if err != nil {
+			return err
+		}
+		maps.Copy(d.Uuids, uuids)
+
+		d.ModifyCountedDatapoints(1, false)
+	}
+	return nil
+}
+
+func (d *DBM) UpdateDatapointValue(value any, uid uuid.UUID, path ...string) error {
+	if uid != uuid.Nil {
+		if _, ok := d.Uuids[uid]; !ok {
+			return fmt.Errorf("uuid %s not found", uid.String())
+		}
+		dp := d.Uuids[uid]
+		dp.Value = dp.Type.ConvertValue(value)
+		dp.UpdateDateTime = time.Now().UnixMilli()
+		dp.Publish(d.Conns, OnChange)
+	}
+
+	if len(path) > 1 {
+		return fmt.Errorf("only one path allowed")
+	}
+
+	return d.Datapoints.UpdateDatapointValue(d.Conns, value, path[0])
+}
+
+func (d *DBM) RemoveDatapoint(sets ...json_dataModels.Set) ([]json_dataModels.Set, error) {
+	var lsRemoved []json_dataModels.Set
+	for _, set := range sets {
+		removed, err := d.Datapoints.RemoveDatapoint(d.Conns, set)
+		if err != nil {
+			return lsRemoved, err
+		}
+		lsRemoved = append(lsRemoved, removed)
+		d.ModifyCountedDatapoints(1, true)
+	}
+
+	return lsRemoved, nil
+}
+
+func (d *DBM) QueryDatapoints(depth uint, uid uuid.UUID, key ...string) []*Datapoint {
+	if uid != uuid.Nil {
+		if _, ok := d.Uuids[uid]; !ok {
+			return nil
+		}
+		dp := d.Uuids[uid]
+		dps := []*Datapoint{dp}
+		return append(dps, dp.QueryDatapoints(depth, key[0])...)
+	}
+	return d.Datapoints.QueryDatapoints(depth, key[0])
+}
+
+func (d *DBM) GetAllDatapoints(depth uint) (dps Datapoints) {
+	return d.Datapoints.GetAllDatapoints(0)
+}
+
+func (d *DBM) GetNumbersOfDatapoints() uint64 {
+	return utils.Uint64From(d.Datapoints.Datapoints["System"].Datapoints["Datapoints"].Value)
+}
+
+func (d *DBM) ModifyCountedDatapoints(count uint64, countDown bool) {
+	dp := d.QueryDatapoints(1, SystemDatapoints, "System:Datapoints")
+	amount := dp[0].GetValueUint64()
+	if countDown {
+		amount -= count
+	} else {
+		amount += count
+	}
+	d.UpdateDatapointValue(amount, SystemDatapoints, "System:Datapoints")
+}
+
+func (d *DBM) GoSystemTime() error {
+	path := "System:Time"
+	var tOld int64
+
+	typ := json_dataModels.STR
+	rights := json_dataModels.Read
+	_, err := d.CreateDatapoints(json_dataModels.Set{Path: path, Type: typ, Rights: rights})
+	if err != nil {
+		d.Log.Error("system.GoSystemTime", err.Error())
+		return err
+	}
+
+	go func() {
+		for {
+			t := time.Now().UnixMilli()
+			if tOld != t {
+				if er := d.UpdateDatapointValue(time.UnixMilli(t).Format("2006-01-02 15:04:05"), uuid.Nil, path); er != nil {
+					d.Log.Error("dmb.Handler.AddSystemDps.UpdateDatapointValue", er.Error())
+				}
+				tOld = t
+			}
+			time.Sleep(time.Second)
+		}
+	}()
+	return nil
+}
+
+func (d *DBM) GoSystemMemory() error {
+	path := "System:UsedMemory"
+	var m runtime.MemStats
+	var mOld uint64
+
+	typ := json_dataModels.STR
+	rights := json_dataModels.Read
+	_, err := d.CreateDatapoints(json_dataModels.Set{Path: path, Type: typ, Rights: rights})
+	if err != nil {
+		d.Log.Error("system.GoSystemMemory", err.Error())
+		return err
+	}
+
+	go func() {
+		for {
+			runtime.ReadMemStats(&m)
+			if m.Sys != mOld {
+				mem := fmt.Sprintf("%.2f MB", float64(m.Sys)/1024/1024)
+				if er := d.UpdateDatapointValue(mem, uuid.Nil, path); er != nil {
+					d.Log.Error("dmb.Handler.AddSystemDps.UpdateDatapointValue", er.Error())
+				}
+				mOld = m.Sys
+			}
+			time.Sleep(time.Second)
+		}
+	}()
+	return nil
+}

models/uuids.go

@@ -0,0 +1,5 @@
+package models
+
+import "github.com/google/uuid"
+
+type Uuids map[uuid.UUID]*Datapoint

test/dbm_test.go

@@ -7,6 +7,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/google/uuid"
 	"github.com/tecamino/tecamino-dbm/args"
 	"github.com/tecamino/tecamino-dbm/cert"
 	"github.com/tecamino/tecamino-dbm/dbm"
@@ -87,11 +88,7 @@ func TestQuery(t *testing.T) {
 		panic(err)
 	}
 
-	// for i, o := range dmaHandler.QueryDatapoints(".*002.*") {
+	for i, o := range dmaHandler.DBM.QueryDatapoints(1, uuid.Nil, "Test:A:000") {
-	// 	fmt.Println(600, i, o)
-	// }
-
-	for i, o := range dmaHandler.QueryDatapoints(1, "Test:A:000") {
 		fmt.Println(600, i, o)
 	}