func (s *ZStoreStub) handleQuery(req *zc.ZMsg, resp *zc.ZMsg) {
payload, _ := req.GetPayload()
if !req.CheckExists("zc-class", "zc-query") {
resp.SetErr("invalid query request")
log.Infof("invalid query request: %s", string(payload))
return
}
className := req.GetString("zc-class")
if !s.checkClass(className) {
resp.SetErr("invalid class name")
log.Infof("invalid query request: %s", string(payload))
return
}
classStore := s.store[className]
if classStore == nil {
resp.SetAck()
return
}
query := req.GetObject("zc-query")
if !query.CheckExists("zc-eq") {
resp.SetErr("no eq condition to find objects")
return
}
eq := query.GetObject("zc-eq")
selectKeys := query.GetStrings("zc-select")
primaryKey := s.getPrimaryKey(className, eq)
dataZO := classStore[primaryKey]
if dataZO == nil {
resp.SetAck()
return
}
selectZO := zc.NewObject()
if len(selectKeys) <= 0 {
selectZO = dataZO
} else {
for _, key := range selectKeys {
selectZO.Put(key, dataZO.Get(key))
}
}
resp.SetAck()
resp.AddObject("zc-objects", selectZO)
return
}