/*A well-written implementation will not store a gigantic list of all
Tribbles for a user in a single key/value entry. Your system should be able to handle
users with thousands of Tribbles without excessive bloat or slowdown. We suggest
storing a list of Tribble IDs (which you will have to define) in some way, and then
storing each Tribble as a separate key/value item stored on the same partition as the
user ID.
Assuming you implement your storage server in this way, we recommend using the Get/Put methods
to store Tribbles and the AppendToList/RemoveFromList methods to store lists of IDs that reference the
actual Tribble objects.*/
func (ts *tribServer) PostTribble(args *tribrpc.PostTribbleArgs, reply *tribrpc.PostTribbleReply) error {
LOGE.Printf("PostTribble:: args=%s\n", string(marshal(*args)))
userIDKey := GetUserKey(args.UserID)
_, err := ts.lib.Get(userIDKey)
if err != nil {
reply.Status = tribrpc.NoSuchUser
return nil
}
var trible tribrpc.Tribble
trible.UserID = args.UserID
trible.Posted = time.Now()
trible.Contents = args.Contents
tribleIDKey := GetTribelPutKey(args.UserID, strconv.Itoa(ts.index), ts.hostPort)
tribleValue, err := json.Marshal(trible)
err = ts.lib.Put(tribleIDKey, string(tribleValue))
if err != nil {
reply.Status = tribrpc.Exists
return nil
}
userTribleListKey := GetsTribleListKey(args.UserID)
err = ts.lib.AppendToList(userTribleListKey, tribleIDKey)
if err != nil {
reply.Status = tribrpc.Exists
return nil
}
reply.Status = tribrpc.OK
ts.index++
LOGE.Printf("PostTribble:: reply=%s\n", string(marshal(reply)))
return nil
}
func (ts *tribServer) PostTribble(args *tribrpc.PostTribbleArgs, reply *tribrpc.PostTribbleReply) error {
fmt.Println(args.Contents)
UserKey := GenerateUserKey(args.UserID)
_, err := ts.lib.Get(UserKey)
if err != nil {
reply.Status = tribrpc.NoSuchUser
return nil
}
TribListKey := GenerateTribListKey(args.UserID)
//err = ts.lib.AppendToList(TribListKey, strconv.Itoa(ts.id))
//if err != nil {
// reply.Status = tribrpc.Exists
// return nil
//}
var trib tribrpc.Tribble
trib.UserID = args.UserID
trib.Posted = time.Now()
trib.Contents = args.Contents
TribIDKey := GenerateTribIDKey(args.UserID, strconv.Itoa(ts.id), ts.hostport)
val, _ := json.Marshal(trib)
err = ts.lib.Put(TribIDKey, string(val))
if err != nil {
reply.Status = tribrpc.Exists
fmt.Println("trib id already exist!")
return nil
}
err = ts.lib.AppendToList(TribListKey, TribIDKey)
if err != nil {
reply.Status = tribrpc.Exists
return nil
}
reply.Status = tribrpc.OK
ts.id++
return nil
}