// Implements proto.MultiBulkParse
func clusterSlotsParser(rd *proto.Reader, n int64) (interface{}, error) {
slots := make([]ClusterSlot, n)
for i := 0; i < len(slots); i++ {
n, err := rd.ReadArrayLen()
if err != nil {
return nil, err
}
if n < 2 {
err := fmt.Errorf("redis: got %d elements in cluster info, expected at least 2", n)
return nil, err
}
start, err := rd.ReadIntReply()
if err != nil {
return nil, err
}
end, err := rd.ReadIntReply()
if err != nil {
return nil, err
}
nodes := make([]ClusterNode, n-2)
for j := 0; j < len(nodes); j++ {
n, err := rd.ReadArrayLen()
if err != nil {
return nil, err
}
if n != 2 && n != 3 {
err := fmt.Errorf("got %d elements in cluster info address, expected 2 or 3", n)
return nil, err
}
ip, err := rd.ReadStringReply()
if err != nil {
return nil, err
}
port, err := rd.ReadIntReply()
if err != nil {
return nil, err
}
nodes[j].Addr = net.JoinHostPort(ip, strconv.FormatInt(port, 10))
if n == 3 {
id, err := rd.ReadStringReply()
if err != nil {
return nil, err
}
nodes[j].Id = id
}
}
slots[i] = ClusterSlot{
Start: int(start),
End: int(end),
Nodes: nodes,
}
}
return slots, nil
}
