From 3c9d6cb66c5d81eb237df461ffb5142ef52599db Mon Sep 17 00:00:00 2001
From: Julius Volz <julius@soundcloud.com>
Date: Thu, 21 Mar 2013 17:59:42 +0100
Subject: [PATCH] Add several needed persistence proxy methods to tiered
 storage.

---
 storage/metric/tiered.go | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/storage/metric/tiered.go b/storage/metric/tiered.go
index 5dc1e99f3..33acf4435 100644
--- a/storage/metric/tiered.go
+++ b/storage/metric/tiered.go
@@ -62,6 +62,11 @@ type Storage interface {
 	Drain()
 	Flush()
 	Close()
+
+	// MetricPersistence proxy methods.
+	GetAllMetricNames() ([]string, error)
+	GetFingerprintsForLabelSet(model.LabelSet) (model.Fingerprints, error)
+	GetMetricForFingerprint(model.Fingerprint) (m *model.Metric, err error)
 }
 
 func NewTieredStorage(appendToMemoryQueueDepth, appendToDiskQueueDepth, viewQueueDepth uint, flushMemoryInterval, writeMemoryInterval, memoryTTL time.Duration, root string) Storage {
@@ -520,3 +525,18 @@ func (t *tieredStorage) loadChunkAroundTime(iterator *levigo.Iterator, frontier
 
 	return
 }
+
+func (t *tieredStorage) GetAllMetricNames() ([]string, error) {
+	// TODO: handle memory persistence as well.
+	return t.diskStorage.GetAllMetricNames()
+}
+
+func (t *tieredStorage) GetFingerprintsForLabelSet(labelSet model.LabelSet) (model.Fingerprints, error) {
+	// TODO: handle memory persistence as well.
+	return t.diskStorage.GetFingerprintsForLabelSet(labelSet)
+}
+
+func (t *tieredStorage) GetMetricForFingerprint(f model.Fingerprint) (m *model.Metric, err error) {
+	// TODO: handle memory persistence as well.
+	return t.diskStorage.GetMetricForFingerprint(f)
+}