fixup! [core] Added monitoring to hooks and communication with outside services

Author: Michal Tichák

common/monitoring/timer.go

@@ -2,6 +2,8 @@ package monitoring
 
 import (
 	"time"
+
+	"github.com/AliceO2Group/Control/common/logger/infologger"
 )
 
 type TimeResolution int
@@ -37,10 +39,13 @@ func timer(metric *Metric, unit TimeResolution, send bool, sendHistogrammable bo
 	return func() {
 		dur := time.Since(start)
 		// we are setting default value as Nanoseconds
-		if unit == Millisecond {
+		switch unit {
+		case Millisecond:
 			metric.SetFieldInt64("execution_time_ms", dur.Milliseconds())
-		} else {
+		case Nanosecond:
 			metric.SetFieldInt64("execution_time_ns", dur.Nanoseconds())
+		default:
+			log.WithField("level", infologger.IL_Devel).Warnf("trying to use unknown time resolution in monitoring.timer function [%d], skipping", unit)
 		}
 
 		if send {