float fix 1

deployment/instances/udi-influx/default/config.json

@@ -105,6 +105,7 @@
           "devicePart": "3",
           "valueFrom": "payload",
           "valuePart": "1",
+          "valueType": "float",
           "unitFrom": "payload",
           "unitPart": "3"
         }

src/udi/handlers/sver/sver.go

@@ -1,17 +1,16 @@
 package sver
 
 import (
-  "time"
+	"log"
+	"regexp"
 	"strconv"
 	"strings"
-  "regexp"
-  "log"
+	"time"
 	"udi/config"
-  "udi/handlers/handler"
 	"udi/database"
+	"udi/handlers/handler"
 )
 
-
 type SingleValueExtractorRegexHandler struct {
 	handler.CommonHandler
 	ready        bool
@@ -32,12 +31,12 @@ type localConfig struct {
 	device      string
 	valueFrom   string
 	valuePart   int
+	valueType   string
 	unitFrom    string
 	unitPart    int
 	unit        string
 }
 
-
 func New(id string, config config.HandlerConfigT) handler.Handler {
 	t := &SingleValueExtractorRegexHandler{
 		ready: false,
@@ -88,6 +87,12 @@ func New(id string, config config.HandlerConfigT) handler.Handler {
 		localConfig.valuePart = valuePart
 	}
 
+	if config.Attributes["valueType"] != "float" && config.Attributes["valueType"] != "string" {
+		log.Printf("Error: invalid value %s for valueType", config.Attributes["valueType"])
+		return t
+	}
+	localConfig.valueType = config.Attributes["valueType"]
+
 	if config.Attributes["unitFrom"] != PAYLOAD_SEL && config.Attributes["unitFrom"] != CONSTANT_SEL {
 		log.Printf("Error: invalid value %s for unitFrom", config.Attributes["unitFrom"])
 		return t
@@ -161,6 +166,7 @@ func (self *SingleValueExtractorRegexHandler) Handle(message handler.MessageT) {
 	variable.Label = ""
 	variable.Variable = ""
 
+	var value string
 	switch self.config.valueFrom {
 	case PAYLOAD_SEL:
 		if self.payloadRegex == nil {
@@ -171,9 +177,19 @@ func (self *SingleValueExtractorRegexHandler) Handle(message handler.MessageT) {
 			self.Lost("valuePart out of range", nil, message)
 			return
 		}
-    variable.Value = payloadMatches[self.config.valuePart]
+		value = payloadMatches[self.config.valuePart]
 	case PAYLOAD_FULL_SEL:
-    variable.Value = message.Payload
+		value = message.Payload
+	}
+	if self.config.valueType == "float" {
+		fValue, err := strconv.ParseFloat(value, 64)
+		if err != nil {
+			self.Lost("Unable to convert value to float", err, message)
+			return
+		}
+		variable.Value = fValue
+	} else {
+		variable.Value = value
 	}
 
 	switch self.config.unitFrom {
@@ -197,4 +213,3 @@ func (self *SingleValueExtractorRegexHandler) Handle(message handler.MessageT) {
 	self.dbh.StoreMeasurement(&measurement)
 	self.S()
 }
-