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add feature: Get node by pos #26

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add feature: Get node by pos #26

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7 changes: 7 additions & 0 deletions hashring.go
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Original file line number Diff line number Diff line change
Expand Up @@ -144,6 +144,13 @@ func (h *HashRing) GetNode(stringKey string) (node string, ok bool) {
return h.ring[h.sortedKeys[pos]], true
}

func (h* HashRing) GetNodeWithPos(pos int) (node string, ok bool) {
if pos < 0 || pos >= len(h.sortedKeys) {
return "",false
}
return h.ring[h.sortedKeys[pos]], true
}

func (h *HashRing) GetNodePos(stringKey string) (pos int, ok bool) {
if len(h.ring) == 0 {
return 0, false
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