func (sv *FrontServer) initActors() error {
config := sv.config
//initialize actor system
if err := yue.Init(&yue.Config{
DatabaseAddress: config.DBHost,
CertPath: config.DBCertPath,
HostAddress: config.NodeIpv4Address,
}); err != nil {
return err
}
yue.Register("/hello", yue.ActorConfig{
SpawnConfig: yue.SpawnConfig{
Factory: yue.InmemoryExecuterFactory{
Constructor: actors.NewHelloActor,
},
},
Size: 1,
}, "channer")
go func() {
var r string
if err := yue.Call("/hello", "Hello", "actor-caller", &r); err != nil {
log.Fatalf("err should not happen: %v %v", err)
} else if r != "hello, actor-caller! from channer" {
log.Fatalf("unexpected response: %v", r)
}
}()
return nil
}
func ListTopic(dbif Dbif, req *proto.TopicListRequest) ([]*proto.Model_Topic, error) {
var limit int32
if req.Limit > 0 {
limit = req.Limit
if limit > TOPIC_FETCH_LIMIT {
limit = TOPIC_FETCH_LIMIT
}
} else {
limit = TOPIC_FETCH_LIMIT
}
locale := req.Locale
if len(locale) <= 0 {
locale = "all"
}
var entries []HotEntry
if err := yue.Call(fmt.Sprintf("/hot/%s", locale), "Query",
req.Bucket, req.Query, nil, req.OffsetScore, req.OffsetId, limit, &entries); err != nil {
return nil, err
}
if len(entries) <= 0 {
return make([]*proto.Model_Topic, 0), nil
}
ids := make([]string, len(entries))
for i, ent := range entries {
ids[i] = strconv.FormatUint(uint64(ent.Id), 10)
}
tps, err := dbif.Select(Topic{}, dbm.Stmt(`select * from %s.topics where id in (%s)`, strings.Join(ids, ",")))
if err != nil {
return nil, err
}
ret := make([]*proto.Model_Topic, len(tps))
for i, tp := range tps {
tpp := tp.(*Topic).Model_Topic
tpp.Point = entries[i].Score
tpp.Vote = entries[i].Vote
ret[i] = &tpp
}
return ret, nil
}