From 008bc09da882f13251c7a16597a79718f45914a9 Mon Sep 17 00:00:00 2001
From: Julius Volz <julius@soundcloud.com>
Date: Wed, 19 Jun 2013 14:19:53 +0200
Subject: [PATCH] Move check for empty memory series to separate method.

---
 storage/metric/memory.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/storage/metric/memory.go b/storage/metric/memory.go
index 6187b79230..252d1ac60e 100644
--- a/storage/metric/memory.go
+++ b/storage/metric/memory.go
@@ -141,6 +141,10 @@ func (s *stream) getRangeValues(in model.Interval) model.Values {
 	return result
 }
 
+func (s *stream) empty() bool {
+	return len(s.values) == 0
+}
+
 func newStream(metric model.Metric) *stream {
 	return &stream{
 		metric: metric,
@@ -258,7 +262,7 @@ func (s *memorySeriesStorage) Flush(flushOlderThan time.Time, queue chan<- model
 
 	s.Lock()
 	for _, fingerprint := range emptySeries {
-		if len(s.fingerprintToSeries[fingerprint].values) == 0 {
+		if s.fingerprintToSeries[fingerprint].empty() {
 			s.dropSeries(&fingerprint)
 		}
 	}