sensor labels

src/udi/handlers/ttn/models/hottisThreeWayThermometer/hottisThreeWayThermometer.go

@@ -4,14 +4,16 @@ import (
   "log"
   "fmt"
   "bytes"
+  "strconv"
   "encoding/base64"
   "encoding/binary"
+  "encoding/json"
   "udi/database"
 )
 
 type hottisThreeWayThermometerValues struct {
   Status uint8
-//  Battery uint16
+  Battery uint16
   SensorAddress1 uint64
   Value1 int32
   SensorAddress2 uint64
@@ -20,8 +22,25 @@ type hottisThreeWayThermometerValues struct {
   Value3 int32 
 }
 
+func getSensorName(sensorsMap *map[string]string, sensorAddress uint64) string {
+  key := strconv.FormatUint(sensorAddress, 10)
+	if sensorName, exists := (*sensorsMap)[key]; exists {
+		return sensorName
+	}
+	return "Sensor" + key
+}
 
 func Parse(fPort int, _ []byte, frmPayload string, variables *map[string]database.VariableType, attributes *map[string]interface{}, _ *database.Device) error {
+  sensorsMap := make(map[string]string)
+  sensorsJSON, ok := (*attributes)["Sensors"].(string)
+  if !ok {
+    return fmt.Errorf("Unable to load sensor map from attributes")
+  }
+  errJ := json.Unmarshal([]byte(sensorsJSON), &sensorsMap)
+  if errJ != nil {
+    return fmt.Errorf("Unable to parse sensor map: %v", errJ)
+  }
+
   if fPort != 2 {
     return fmt.Errorf("Unexpected fPort %d", fPort)
   }
@@ -37,30 +56,38 @@ func Parse(fPort int, _ []byte, frmPayload string, variables *map[string]databas
     return fmt.Errorf("Unable to cast into struct: %v", err)
   }
 
+  var battery float32 = float32(values.Battery) / 1000.0
   var value1 float32 = float32(values.Value1) / 128.0
   var value2 float32 = float32(values.Value2) / 128.0
   var value3 float32 = float32(values.Value3) / 128.0
 
   //log.Printf("Status: %d, Battery: %d", values.Status, values.Battery);
   log.Printf("Status: %d", values.Status);
+  log.Printf("Battery: %d, %f", values.Battery, battery);
   log.Printf("Sensor1: Addr: %d, Value: %f", values.SensorAddress1, value1);
   log.Printf("Sensor2: Addr: %d, Value: %f", values.SensorAddress2, value2);
   log.Printf("Sensor3: Addr: %d, Value: %f", values.SensorAddress3, value3);
 
+  (*variables)["Battery"] = database.VariableType {
+    Label: "Battery",
+    Variable: "Voltage",
+    Unit: "V",
+    Value: battery,
+  }
   (*variables)["Temperature1"] = database.VariableType {
-    Label: "Temperature1",
+    Label: getSensorName(&sensorsMap, values.SensorAddress1),
     Variable: "Temperature",
     Unit: "°C",
     Value: value1,
   }
   (*variables)["Temperature2"] = database.VariableType {
-    Label: "Temperature2",
+    Label: getSensorName(&sensorsMap, values.SensorAddress2),
     Variable: "Temperature",
     Unit: "°C",
     Value: value2,
   }
   (*variables)["Temperature3"] = database.VariableType {
-    Label: "Temperature3",
+    Label: getSensorName(&sensorsMap, values.SensorAddress3),
     Variable: "Temperature",
     Unit: "°C",
     Value: value3,