locative handler

queries/hottis.sql

@@ -67,3 +67,12 @@ create or replace view soil_v as
          device
     from measurements
     where application = 'de-hottis-app01' and attributes->>'DeviceType' = 'dragino-lse01';
+
+create or replace view co2_v as
+  select time,
+         cast(values->'CO2concentration'->>'value' as float) as co2concentration,
+         cast(values->'Humidity'->>'value' as float) as humidity,
+         cast(values->'Temperature'->>'value' as float) as temperature,
+         device
+    from measurements
+    where application = 'de-hottis-app01' and attributes->>'DeviceType' = 'hottis-scd30';

src/udi/dispatcher/dispatcher.go

@@ -16,6 +16,7 @@ import "udi/handlers/mbgw3"
 import "udi/handlers/sver"
 import "udi/handlers/svej"
 import "udi/handlers/dt1t"
+import "udi/handlers/locative"
 
 
 var handlerMap map[string]handler.Handler = make(map[string]handler.Handler)
@@ -44,6 +45,8 @@ func InitDispatcher() {
       factory = svej.New
     case "DT1T":
       factory = dt1t.New
+    case "Locative":
+      factory = locative.New
     default:
       factory = nil
       log.Printf("No handler %s found, ignore mapping", mapping.Handler)

src/udi/handlers/locative/locative.go

@@ -0,0 +1,73 @@
+package locative
+
+import (
+  "reflect"
+  "time"
+  "log"
+  "encoding/json"
+  "udi/config"
+  "udi/handlers/handler"
+  "udi/database"
+)
+
+
+type LocativeHandler struct {
+  handler.CommonHandler
+  dbh *database.DatabaseHandle
+}
+
+type locativeEvent struct {
+  Trigger string `json:"trigger"`
+  Device string `json:"device"`
+  Location string `json:"location"`
+  Latitude string `json:"latitude"`
+  Longitude string `json:"longitude"`
+  Person string `json:"person"`
+  Timestamp string `json:"timestamp"`
+}
+
+func New(id string, config config.HandlerConfigT) handler.Handler {
+  t := &LocativeHandler {
+  }
+  t.Id = id
+  t.dbh = database.NewDatabaseHandle()
+  return t
+}
+
+
+func (self *LocativeHandler) Handle(message handler.MessageT) {
+  log.Printf("Handler Locative %d processing %s -> %s", self.Id, message.Topic, message.Payload)
+
+  var locativeEvent locativeEvent
+  err := json.Unmarshal([]byte(message.Payload), &locativeEvent)
+  if err != nil {
+    self.Lost("Unable to parse payload into locativeEvent struct", err, message)
+    return
+  }
+
+  variables := make(map[string]database.VariableType)
+  locativeEventStructValue := reflect.ValueOf(locativeEvent)
+  for i := 0; i < locativeEventStructValue.NumField(); i++ {
+    field := locativeEventStructValue.Type().Field(i)
+    fieldValue := locativeEventStructValue.Field(i)
+    v := database.VariableType {
+      Label: "",
+      Variable: field.Name,
+      Unit: "",
+      Value: fieldValue.Interface(),
+    }
+    variables[field.Name] = v
+  }
+
+  measurement := database.Measurement {
+    Time: time.Now(),
+    Application: "Locative",
+    Device: locativeEvent.Person,
+    Values: variables,
+  }
+
+  self.dbh.StoreMeasurement(&measurement)
+  self.S()
+}
+
+