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etcdserver: sort Members() in Cluster

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This commit is contained in:
Jonathan Boulle
2014-10-23 15:57:27 -07:00
parent 4089475c90
commit af42f4a56b
4 changed files with 51 additions and 19 deletions
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18
etcdserver/cluster.go
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@ -41,7 +41,8 @@ const (
type ClusterInfo interface {
ID() uint64
ClientURLs() []string
Members() map[uint64]*Member
// Members returns a slice of members sorted by their ID
Members() []*Member
Member(id uint64) *Member
}
@ -123,7 +124,20 @@ func newCluster(name string) *Cluster {
func (c Cluster) ID() uint64 { return c.id }
func (c Cluster) Members() map[uint64]*Member { return c.members }
func (c Cluster) Members() []*Member {
var sms SortableMemberSlice
for _, m := range c.members {
sms = append(sms, m)
}
sort.Sort(sms)
return []*Member(sms)
}
type SortableMemberSlice []*Member
func (s SortableMemberSlice) Len() int { return len(s) }
func (s SortableMemberSlice) Less(i, j int) bool { return s[i].ID < s[j].ID }
func (s SortableMemberSlice) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (c *Cluster) Member(id uint64) *Member {
return c.members[id]