func (zkts *Server) GetSrvShard(cell, keyspace, shard string) (*topo.SrvShard, error) {
path := zkPathForVtShard(cell, keyspace, shard)
data, stat, err := zkts.zconn.Get(path)
if err != nil {
if zookeeper.IsError(err, zookeeper.ZNONODE) {
err = topo.ErrNoNode
}
return nil, err
}
return topo.NewSrvShard(data, stat.Version())
}
func (tr *TopoReader) GetEndPoints(req topo.GetEndPointsArgs, reply *topo.VtnsAddrs) (err error) {
shardPath := zkPathForVtShard(req.Cell, req.Keyspace, req.Shard)
zkrReply := &zk.ZkNode{}
if err := tr.zkr.Get(&zk.ZkPath{Path: shardPath}, zkrReply); err != nil {
return err
}
shard, err := topo.NewSrvShard(zkrReply.Data, zkrReply.Stat.Version())
if err != nil {
return err
}
*reply = shard.AddrsByType[req.TabletType]
return nil
}
func (zkts *Server) GetSrvShard(cell, keyspace, shard string) (*topo.SrvShard, error) {
path := zkPathForVtShard(cell, keyspace, shard)
data, stat, err := zkts.zconn.Get(path)
if err != nil {
if zookeeper.IsError(err, zookeeper.ZNONODE) {
err = topo.ErrNoNode
}
return nil, err
}
srvShard := topo.NewSrvShard(int64(stat.Version()))
if len(data) > 0 {
if err := json.Unmarshal([]byte(data), srvShard); err != nil {
return nil, fmt.Errorf("SrvShard unmarshal failed: %v %v", data, err)
}
}
return srvShard, nil
}
// GetSrvShard implements topo.Server.
func (s *Server) GetSrvShard(ctx context.Context, cellName, keyspace, shard string) (*topo.SrvShard, error) {
cell, err := s.getCell(cellName)
if err != nil {
return nil, err
}
resp, err := cell.Get(srvShardFilePath(keyspace, shard), false /* sort */, false /* recursive */)
if err != nil {
return nil, convertError(err)
}
if resp.Node == nil {
return nil, ErrBadResponse
}
value := topo.NewSrvShard(int64(resp.Node.ModifiedIndex))
if err := json.Unmarshal([]byte(resp.Node.Value), value); err != nil {
return nil, fmt.Errorf("bad serving shard data (%v): %q", err, resp.Node.Value)
}
return value, nil
}