func processGetDataReq(opReq OpReq, client kv.Client) *OpRep {
xid := opReq.Hdr.Xid
req := opReq.Req.(*GetDataReq)
if err := newErrorRepIfInvalidPath(xid, 0, req.Path); err != nil {
return err
}
node, err := client.GetData(req.Path.Value)
if err != nil {
return newBackendErrorRep(xid, 0, err)
}
return newRep(
xid, 0, errOk,
&GetDataRep{
Data: []byte(node.Value),
Stat: newStat(node.CreatedIndex, node.ModifiedIndex, len(node.Value)),
},
)
}
func processCheckVersionReq(opReq OpReq, client kv.Client) *OpRep {
xid := opReq.Hdr.Xid
req := opReq.Req.(*CheckVersionReq)
if err := newErrorRepIfInvalidPath(xid, 0, req.Path); err != nil {
return err
}
node, err := client.GetData(req.Path.Value)
if err != nil {
return newBackendErrorRep(xid, 0, err)
}
if req.Version != int32(node.ModifiedIndex) {
return newErrorRep(xid, 0, errBadVersion)
}
return newRep(
xid, 0, errOk,
&PingRep{},
)
}