Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

models/common.go

@@ -0,0 +1,38 @@
+package models
+
+import (
+	"reflect"
+
+	"github.com/influxdata/telegraf"
+)
+
+// logName returns the log-friendly name/type.
+func logName(pluginType, name, alias string) string {
+	if alias == "" {
+		return pluginType + "." + name
+	}
+	return pluginType + "." + name + "::" + alias
+}
+
+func SetLoggerOnPlugin(i interface{}, logger telegraf.Logger) {
+	valI := reflect.ValueOf(i)
+
+	if valI.Type().Kind() != reflect.Ptr {
+		valI = reflect.New(reflect.TypeOf(i))
+	}
+
+	field := valI.Elem().FieldByName("Log")
+	if !field.IsValid() {
+		return
+	}
+
+	switch field.Type().String() {
+	case "telegraf.Logger":
+		if field.CanSet() {
+			field.Set(reflect.ValueOf(logger))
+		}
+	default:
+		logger.Debugf("Plugin %q defines a 'Log' field on its struct of an unexpected type %q. Expected telegraf.Logger",
+			valI.Type().Name(), field.Type().String())
+	}
+}