Example #1
0
func (ts *tribServer) AddSubscription(args *tribrpc.SubscriptionArgs, reply *tribrpc.SubscriptionReply) error {
	userkey := util.FormatUserKey(args.UserID)
	targetkey := util.FormatUserKey(args.TargetUserID)

	usersubs := util.FormatSubListKey(args.UserID)
	target := args.TargetUserID

	// Make sure user exists
	if _, eu := ts.ls.Get(userkey); eu != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}
	// Make sure targetUser exists
	if _, et := ts.ls.Get(targetkey); et != nil {
		reply.Status = tribrpc.NoSuchTargetUser
		return nil
	}
	// Make sure user isn't already subscribed to target
	err := ts.ls.AppendToList(usersubs, target)
	if err == nil {
		reply.Status = tribrpc.OK
	} else {
		reply.Status = tribrpc.Exists
	}
	return nil
}
Example #2
0
func (ts *tribServer) AddSubscription(args *tribrpc.SubscriptionArgs, reply *tribrpc.SubscriptionReply) error {
	user_id := util.FormatUserKey(args.UserID)
	target_user_id := util.FormatUserKey(args.TargetUserID)

	// If the user_id doesn't exist
	// Return error
	_, err := ts.lib_store.Get(user_id)
	if err != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}

	// If the target_user_id doesn't exist
	// Return error
	_, err = ts.lib_store.Get(target_user_id)
	if err != nil {
		reply.Status = tribrpc.NoSuchTargetUser
		return nil
	}

	user_sub := util.FormatSubListKey(args.UserID)
	err = ts.lib_store.AppendToList(user_sub, args.TargetUserID)
	if err != nil {
		reply.Status = tribrpc.Exists
		return nil
	}
	reply.Status = tribrpc.OK
	return nil
}
Example #3
0
func (ts *tribServer) RemoveSubscription(args *tribrpc.SubscriptionArgs, reply *tribrpc.SubscriptionReply) error {
	userkey := util.FormatUserKey(args.UserID)
	targetkey := util.FormatUserKey(args.TargetUserID)

	usersubs := util.FormatSubListKey(args.UserID)
	target := args.TargetUserID

	// Make sure user exists
	if _, eu := ts.ls.Get(userkey); eu != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}
	// Make sure target exists
	if _, et := ts.ls.Get(targetkey); et != nil {
		reply.Status = tribrpc.NoSuchTargetUser
		return nil
	}
	// Make sure user is subscribed to target
	if err := ts.ls.RemoveFromList(usersubs, target); err != nil {
		reply.Status = tribrpc.NoSuchTargetUser
	} else {
		reply.Status = tribrpc.OK
	}
	return nil
}
// AddSubscription adds TargerUserID to UserID's list of subscriptions.
// Replies with status NoSuchUser if the specified UserID does not exist, and NoSuchTargerUser
// if the specified TargerUserID does not exist.
func (ts *tribServer) AddSubscription(args *tribrpc.SubscriptionArgs, reply *tribrpc.SubscriptionReply) error {

	userId := args.UserID
	targetId := args.TargetUserID

	userIdKey := util.FormatUserKey(userId)
	targetIdKey := util.FormatUserKey(targetId)

	_, ok_user := ts.libstore.Get(userIdKey)
	_, ok_target := ts.libstore.Get(targetIdKey)
	if ok_user != nil {
		reply.Status = tribrpc.NoSuchUser
	} else if ok_target != nil {
		reply.Status = tribrpc.NoSuchTargetUser
	} else {
		subKey := util.FormatSubListKey(userId)

		err := ts.libstore.AppendToList(subKey, targetId)
		if err != nil {
			reply.Status = tribrpc.Exists
		} else {
			reply.Status = tribrpc.OK
		}
	}
	return nil
}
func (ts *tribServer) CreateUser(args *tribrpc.CreateUserArgs, reply *tribrpc.CreateUserReply) error {
	if DBG {
		fmt.Println("-----> CreateUser")
	}
	var usrID string = args.UserID

	_, err := ts.libStore.Get(util.FormatUserKey(usrID))

	if err == nil {
		//user not found
		reply.Status = tribrpc.Exists
		return nil
		//return err
	}

	err = ts.libStore.Put(util.FormatUserKey(usrID), "exists")

	if err != nil {

		return nil
	}

	//populate reply struct
	reply.Status = tribrpc.OK
	return nil
}
Example #6
0
func (ts *tribServer) AddSubscription(args *tribrpc.SubscriptionArgs, reply *tribrpc.SubscriptionReply) error {
	userid := args.UserID
	targetid := args.TargetUserID
	useridkey := util.FormatUserKey(userid)
	targetidkey := util.FormatUserKey(targetid)

	_, userExists := ts.ls.Get(useridkey)

	if userExists != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}

	_, targetExists := ts.ls.Get(targetidkey)

	if targetExists != nil {
		reply.Status = tribrpc.NoSuchTargetUser
		return nil
	}

	userSubListKey := util.FormatSubListKey(userid)
	appendErr := ts.ls.AppendToList(userSubListKey, targetid)

	if appendErr != nil {
		reply.Status = tribrpc.Exists
		return nil
	}

	reply.Status = tribrpc.OK
	return nil
}
Example #7
0
func (ts *tribServer) CreateUser(args *tribrpc.CreateUserArgs, reply *tribrpc.CreateUserReply) error {
	if ts.userExist(args.UserID) == true {
		reply.Status = tribrpc.Exists
		return nil
	}
	reply.Status = tribrpc.OK
	ts.ls.Put(util.FormatUserKey(args.UserID), util.FormatUserKey(args.UserID))
	return nil
}
Example #8
0
func (ts *tribServer) DeleteTribble(args *tribrpc.DeleteTribbleArgs, reply *tribrpc.DeleteTribbleReply) error {
	if args == nil {
		return errors.New("ts: Can't delete nil")
	}
	if reply == nil {
		return errors.New("ts: Can't reply with nil in Delete")
	}

	_, err := ts.ls.Get(util.FormatUserKey(args.UserID))
	if err != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}

	err = ts.ls.RemoveFromList(util.FormatTribListKey(args.UserID), args.PostKey)
	if err != nil {
		reply.Status = tribrpc.NoSuchPost
		return nil
	}
	if ts.ls.Delete(args.PostKey) != nil {
		reply.Status = tribrpc.NoSuchPost
		return errors.New("Fatal, failed to delete a key")
	}

	reply.Status = tribrpc.OK
	return nil
}
func (ts *tribServer) DeleteTribble(args *tribrpc.DeleteTribbleArgs, reply *tribrpc.DeleteTribbleReply) error {
	userkey := util.FormatUserKey(args.UserID)
	_, userErr := ts.libstore.Get(userkey)
	if userErr != nil {
		reply.Status = tribrpc.NoSuchUser
	} else {

		delErr := ts.libstore.Delete(args.PostKey)
		if delErr != nil {
			reply.Status = tribrpc.NoSuchPost
			return nil
		}

		tribkey := util.FormatTribListKey(args.UserID)
		delListErr := ts.libstore.RemoveFromList(tribkey, args.PostKey)
		if delListErr != nil {
			reply.Status = tribrpc.NoSuchPost
			return nil
		}

		reply.Status = tribrpc.OK

	}
	return nil
}
Example #10
0
func (ts *tribServer) GetTribbles(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {
	key := util.FormatUserKey(args.UserID)
	if ts.checkIfKnown(key) {
		triblist_key := util.FormatTribListKey(args.UserID)
		post_ids, err := ts.storage.GetList(triblist_key)
		if err != nil {
			post_ids = []string{}
		}
		sort.Sort(ByChrono(post_ids))
		bound := min(100, len(post_ids))
		tribs := make([]tribrpc.Tribble, bound)
		for i, v := range post_ids[0:bound] {
			postStr, err := ts.storage.Get(v)
			if err != nil {
				return err
			}
			trib := tribrpc.Tribble{}
			json.Unmarshal([]byte(postStr), &trib)
			tribs[i] = trib
		}
		reply.Tribbles = tribs
		reply.Status = tribrpc.OK
	} else {
		reply.Status = tribrpc.NoSuchUser
	}
	return nil
}
Example #11
0
func (ts *tribServer) PostTribble(args *tribrpc.PostTribbleArgs, reply *tribrpc.PostTribbleReply) error {
	key := util.FormatUserKey(args.UserID)
	if ts.checkIfKnown(key) {
		newTrib := tribrpc.Tribble{args.UserID, time.Now(), args.Contents}
		tribStr, err := json.Marshal(newTrib)
		if err != nil {
			return err
		}

		id := newTrib.UserID
		time := newTrib.Posted.UnixNano()
		post_key := util.FormatPostKey(id, time)
		for ts.checkIfKnown(post_key) {
			post_key = util.FormatPostKey(id, time)
		}
		err = ts.storage.Put(post_key, string(tribStr))
		if err != nil {
			return err
		}

		triblist_key := util.FormatTribListKey(args.UserID)
		err = ts.storage.AppendToList(triblist_key, post_key)
		if err != nil {
			return err
		}

		reply.PostKey = post_key
		reply.Status = tribrpc.OK
	} else {
		reply.Status = tribrpc.NoSuchUser
	}
	return nil
}
Example #12
0
func (ts *tribServer) DeleteTribble(args *tribrpc.DeleteTribbleArgs, reply *tribrpc.DeleteTribbleReply) error {
	key := util.FormatUserKey(args.UserID)
	post_key := args.PostKey

	if !ts.checkIfKnown(key) {
		reply.Status = tribrpc.NoSuchUser
	} else if !ts.checkIfKnown(post_key) {
		reply.Status = tribrpc.NoSuchPost
	} else {
		err := ts.storage.Delete(post_key)
		if err != nil {
			return err
		}

		triblist_key := util.FormatTribListKey(args.UserID)
		err = ts.storage.RemoveFromList(triblist_key, post_key)
		if err != nil {
			return err
		}

		reply.Status = tribrpc.OK

	}
	return nil
}
func (ts *tribServer) GetTribblesBySubscription(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {
	userkey := util.FormatUserKey(args.UserID)
	_, userErr := ts.libstore.Get(userkey)

	if userErr != nil {
		reply.Status = tribrpc.NoSuchUser
	} else {
		reply.Status = tribrpc.OK
		subskey := util.FormatSubListKey(args.UserID)
		subsList, _ := ts.libstore.GetList(subskey)

		totalTribList := make(Tribbles, 0)
		for i := 0; i < len(subsList); i++ {
			curUser := subsList[i]
			curtribList := ts.GetTribblesOneUser(curUser)

			for j := 0; j < len(curtribList); j++ {
				totalTribList = append(totalTribList, curtribList[j])
			}
			//totalTribList = append(totalTribList, curtribList)
		}

		sort.Sort(totalTribList)
		totalLen := len(totalTribList)
		if totalLen > 100 {
			totalLen = 100
		}
		reply.Tribbles = make(Tribbles, totalLen)
		for j := 0; j < totalLen; j++ {
			reply.Tribbles[j] = totalTribList[j]
		}
	}
	return nil

}
/*
-format sublist
*/
func (ts *tribServer) GetTribblesBySubscription(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {

	if DBG {
		fmt.Println("-----> GetTribblesBySubscription")
	}
	var usrID string = args.UserID

	//check if user present in server
	_, err := ts.libStore.Get(util.FormatUserKey(usrID))

	if err != nil {
		switch err.Error() {
		case WRONG_SERVER:
			fmt.Println("ERROR: WRONG SERVER in tribserver")
			return errors.New("Wrong server contacted!")

		case KEY_NOT_FOUND:
			reply.Status = tribrpc.NoSuchUser
			return nil

		default:
			fmt.Println("ERROR in tribserver: wrong error message received")
		}
	}

	//get list of subscribers
	subscrList, err := ts.libStore.GetList(util.FormatSubListKey(usrID))

	if err != nil {
		//return err
		fmt.Println("No subscribers, or error getting list of subscribers")
		reply.Status = tribrpc.OK
		return nil
	}

	//initialise empty slice of all postKeys from subscribers
	var allPostKeys []string = make([]string, 0)

	//populate allPostKeys
	for _, currUser := range subscrList {
		currPostKeys, err := ts.libStore.GetList(util.FormatTribListKey(currUser))

		if err == nil {
			allPostKeys = append(allPostKeys, currPostKeys...)

		} else {
			//fmt.Println("0 tribs for user detected")
		}
	}

	sort.Sort(PostByTime(allPostKeys))

	//choose most recent posts, and get tribbles
	var tribList []tribrpc.Tribble = ts.getTribbleList(allPostKeys)

	reply.Tribbles = tribList
	reply.Status = tribrpc.OK
	return nil

}
func (ts *tribServer) PostTribble(args *tribrpc.PostTribbleArgs, reply *tribrpc.PostTribbleReply) error {

	userkey := util.FormatUserKey(args.UserID)

	_, userErr := ts.libstore.Get(userkey)
	if userErr != nil {
		reply.Status = tribrpc.NoSuchUser
	} else {
		postTime := time.Now()
		tribble := &tribrpc.Tribble{
			UserID:   args.UserID,
			Posted:   postTime,
			Contents: args.Contents,
		}
		marshalTribble, _ := json.Marshal(tribble)

		unixTime := int64(postTime.UnixNano())
		postKey := util.FormatPostKey(args.UserID, unixTime)

		putErr := ts.libstore.Put(postKey, string(marshalTribble))
		if putErr != nil {
			return errors.New("Fail to put postkey and tribble")
		}

		tribListKey := util.FormatTribListKey(args.UserID)
		appendErr := ts.libstore.AppendToList(tribListKey, postKey)
		if appendErr != nil {
			return errors.New("Fail to append tribble to user")
		}
		reply.Status = tribrpc.OK
		reply.PostKey = postKey
	}

	return nil
}
Example #16
0
func (ts *tribServer) userExist(UserID string) bool {
	_, err := ts.ls.Get(util.FormatUserKey(UserID))
	if err != nil {
		return false
	}
	return true
}
Example #17
0
func (ts *tribServer) DeleteTribble(args *tribrpc.DeleteTribbleArgs, reply *tribrpc.DeleteTribbleReply) error {
	user_id := util.FormatUserKey(args.UserID)

	// If the user_id doesn't exist
	// Reture NoSuchUser
	_, err := ts.lib_store.Get(user_id)
	if err != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}

	user_trib_list_key := util.FormatTribListKey(args.UserID)
	err = ts.lib_store.RemoveFromList(user_trib_list_key, args.PostKey)
	if err != nil {
		reply.Status = tribrpc.NoSuchPost
		fmt.Println(2)
		return nil
	}

	err = ts.lib_store.Delete(args.PostKey)
	if err != nil {
		reply.Status = tribrpc.NoSuchPost
		return nil
	}

	reply.Status = tribrpc.OK
	return nil
}
Example #18
0
func (ts *tribServer) AddSubscription(args *tribrpc.SubscriptionArgs, reply *tribrpc.SubscriptionReply) error {
	user_key := util.FormatUserKey(args.UserID)
	target_key := util.FormatUserKey(args.TargetUserID)
	if !ts.checkIfKnown(user_key) {
		reply.Status = tribrpc.NoSuchUser
	} else if !ts.checkIfKnown(target_key) {
		reply.Status = tribrpc.NoSuchTargetUser
	} else {
		sublist_key := util.FormatSubListKey(args.UserID)
		err := ts.storage.AppendToList(sublist_key, args.TargetUserID)
		if err != nil {
			reply.Status = tribrpc.Exists
		} else {
			reply.Status = tribrpc.OK
		}
	}
	return nil
}
Example #19
0
func (ts *tribServer) GetTribblesBySubscription(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {
	if args == nil {
		return errors.New("ts: Can't getSubscription nil")
	}
	if reply == nil {
		return errors.New("ts: Can't reply with nil in getSubscription")
	}

	_, err := ts.ls.Get(util.FormatUserKey(args.UserID))
	if err != nil {
		reply.Status = tribrpc.NoSuchUser
		reply.Tribbles = make([]tribrpc.Tribble, 0, 0)
		return nil
	}

	users, err := ts.ls.GetList(util.FormatSubListKey(args.UserID))
	if err != nil {
		reply.Status = tribrpc.OK
		reply.Tribbles = make([]tribrpc.Tribble, 0, 0)
		return nil
	}

	postIDs := make([]string, 0)
	for _, userID := range users {
		lst, err := ts.ls.GetList(util.FormatTribListKey(userID))
		if err == nil {
			postIDs = append(postIDs, lst...)
		}
	}

	tmp := tribbleIDs(postIDs)

	sort.Sort(tmp)
	tribbleIdsChrono := []string(tmp)

	length := 100
	if len(tribbleIdsChrono) < 100 {
		length = len(tribbleIdsChrono)
	}

	tribbles := make([]tribrpc.Tribble, length)
	var tribTmp tribrpc.Tribble
	i := 0
	for i < length {
		trib, err := ts.ls.Get(tribbleIdsChrono[i])
		if err == nil {
			json.Unmarshal([]byte(trib), &tribTmp)
			tribbles[i] = tribTmp
			i += 1 // If error occurs, we do NOT increment i
		}
	}
	reply.Status = tribrpc.OK
	reply.Tribbles = tribbles
	return nil
}
Example #20
0
func (ts *tribServer) GetTribblesBySubscription(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {
	// Getsublist by key
	// Get tribble list by user_ids in sublist
	// sort the tribble list by the timestamp
	// retrive the first 100 tribble (Be careful about the delete operation)
	user_id := util.FormatUserKey(args.UserID)

	// If the user_id doesn't exist
	// Reture NoSuchUser
	_, err := ts.lib_store.Get(user_id)
	if err != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}

	// Get user's subscription_list
	user_id_list := util.FormatSubListKey(args.UserID)
	// list of IDs
	user_list, _ := ts.lib_store.GetList(user_id_list)

	if user_list == nil {
		reply.Status = tribrpc.OK
		return nil
	}

	// Get tribble_ids from the user_ids in the subscription list
	tribble_id_list := make([]string, 0)
	for _, usr_id := range user_list {
		t_id_list, err := ts.lib_store.GetList(util.FormatTribListKey(usr_id))
		if err == nil {
			tribble_id_list = append(tribble_id_list, t_id_list...)
		}
	}

	sort.Sort(SortTribbleByTimestamp(tribble_id_list))

	counter := 0
	tribble_list := make([]tribrpc.Tribble, 100)
	for _, tid := range tribble_id_list {
		tribble, err := ts.lib_store.Get(tid)
		if err == nil {
			json.Unmarshal([]byte(tribble), &tribble_list[counter])
			counter += 1
		}
		if counter >= 100 {
			break
		}
	}

	reply.Status = tribrpc.OK
	reply.Tribbles = tribble_list[:counter]
	return nil
}
Example #21
0
func (ts *tribServer) CreateUser(args *tribrpc.CreateUserArgs, reply *tribrpc.CreateUserReply) error {
	key := util.FormatUserKey(args.UserID)
	if ts.checkIfKnown(key) {
		reply.Status = tribrpc.Exists
	} else {
		err := ts.storage.Put(key, args.UserID)
		if err != nil {
			return err
		}
		reply.Status = tribrpc.OK
	}
	return nil
}
Example #22
0
func (ts *tribServer) CreateUser(args *tribrpc.CreateUserArgs, reply *tribrpc.CreateUserReply) error {

	user := util.FormatUserKey(args.UserID)

	// Check that this user doesn't already exist
	if _, err := ts.ls.Get(user); err != nil {
		ts.ls.Put(user, user)
		reply.Status = tribrpc.OK
	} else {
		reply.Status = tribrpc.Exists
	}
	return nil
}
func (ts *tribServer) GetSubscriptions(args *tribrpc.GetSubscriptionsArgs, reply *tribrpc.GetSubscriptionsReply) error {
	subkey := util.FormatSubListKey(args.UserID)
	userkey := util.FormatUserKey(args.UserID)
	_, userErr := ts.libstore.Get(userkey)
	if userErr != nil {
		reply.Status = tribrpc.NoSuchUser
	} else {
		list, _ := ts.libstore.GetList(subkey)
		reply.Status = tribrpc.OK
		reply.UserIDs = list
	}
	return nil
}
/*
-getList, formatTribListKey to get all the post keys
-Slice it off at 100
-reverse it or wtv (if needed)
-Get() with that post key, and get the marshalled tribble
*/
func (ts *tribServer) GetTribbles(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {

	if DBG {
		fmt.Println("-----> GetTribbles")
	}
	var usrID string = args.UserID

	//check if user present in server
	_, err := ts.libStore.Get(util.FormatUserKey(usrID))

	if err != nil {
		switch err.Error() {
		case WRONG_SERVER:
			fmt.Println("ERROR: WRONG SERVER in tribserver")
			return errors.New("Wrong server contacted!")

		case KEY_NOT_FOUND:
			reply.Status = tribrpc.NoSuchUser
			return nil

		default:
			fmt.Println("ERROR in tribserver: wrong error message received")
		}
	}

	postKeysList, err := ts.libStore.GetList(util.FormatTribListKey(usrID))

	if err != nil {
		//fmt.Println("Could not get list of postKeys for user")
		//return empty tribble list, as the list is not yet created (0 tribbles)

		switch err.Error() {
		case KEY_NOT_FOUND:
			reply.Status = tribrpc.OK
			reply.Tribbles = make([]tribrpc.Tribble, 0)
			return nil
		case WRONG_SERVER:
			fmt.Println("WRONG SERVER CONTACTED!")
			return nil
		default:
			fmt.Println("ERROR in tribserver: wrong error message received!")
			return nil
		}

	}

	reply.Status = tribrpc.OK
	reply.Tribbles = ts.getTribbleList(postKeysList)

	return nil
}
Example #25
0
func (ts *tribServer) GetSubscriptions(args *tribrpc.GetSubscriptionsArgs, reply *tribrpc.GetSubscriptionsReply) error {
	key := util.FormatUserKey(args.UserID)
	if ts.checkIfKnown(key) {
		sublist_key := util.FormatSubListKey(args.UserID)
		sub_ids, err := ts.storage.GetList(sublist_key)
		if err != nil {
			sub_ids = []string{}
		}
		reply.UserIDs = sub_ids
		reply.Status = tribrpc.OK
	} else {
		reply.Status = tribrpc.NoSuchUser
	}
	return nil
}
Example #26
0
func (ts *tribServer) GetTribbles(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {
	userid := args.UserID
	useridkey := util.FormatUserKey(userid)

	_, userExists := ts.ls.Get(useridkey)

	if userExists != nil {
		reply.Status = tribrpc.NoSuchUser
		return nil
	}

	userTribListKey := util.FormatTribListKey(userid)
	tribbleIdList, err := ts.ls.GetList(userTribListKey)

	if err != nil {
		reply.Status = tribrpc.OK
		reply.Tribbles = nil
		return nil
	}

	tmp := tribbleIDs(tribbleIdList)
	sort.Sort(tmp)
	tribbleIdsChrono := []string(tmp)

	// Calculate the length of the tribbles we want to get
	length := 100
	if len(tribbleIdsChrono) < 100 {
		length = len(tribbleIdsChrono)
	}
	allTribbles := make([]tribrpc.Tribble, length)
	var tribTmp tribrpc.Tribble
	i := 0
	for i < length {
		trib, err := ts.ls.Get(tribbleIdsChrono[i])
		if err == nil {
			json.Unmarshal([]byte(trib), &tribTmp)
			allTribbles[i] = tribTmp
			i += 1 // If error occurs, we do NOT increment i
		}
	}

	reply.Status = tribrpc.OK
	reply.Tribbles = allTribbles

	return nil

}
func (ts *tribServer) CreateUser(args *tribrpc.CreateUserArgs, reply *tribrpc.CreateUserReply) error {

	key := util.FormatUserKey(args.UserID)
	_, err := ts.libstore.Get(key)

	if err == nil {
		reply.Status = tribrpc.Exists
	} else {
		err2 := ts.libstore.Put(key, key)
		if err2 != nil {
			return err2
		}
		reply.Status = tribrpc.OK
	}

	return nil
}
Example #28
0
func (ts *tribServer) CreateUser(args *tribrpc.CreateUserArgs, reply *tribrpc.CreateUserReply) error {
	user_id := util.FormatUserKey(args.UserID)

	_, err := ts.lib_store.Get(user_id)
	if err == nil {
		reply.Status = tribrpc.Exists
		return nil
	}

	err = ts.lib_store.Put(user_id, args.UserID)
	if err != nil {
		reply.Status = tribrpc.Exists
		return err
	}
	reply.Status = tribrpc.OK
	return nil
}
Example #29
0
func (ts *tribServer) CreateUser(args *tribrpc.CreateUserArgs, reply *tribrpc.CreateUserReply) error {
	userid := args.UserID
	useridkey := util.FormatUserKey(userid)
	_, err := ts.ls.Get(useridkey)

	if err == nil {
		reply.Status = tribrpc.Exists
		return nil
	}

	err2 := ts.ls.Put(useridkey, userid)
	if err2 != nil {
		reply.Status = tribrpc.Exists
		return err2
	}

	reply.Status = tribrpc.OK
	return nil
}
Example #30
0
func (ts *tribServer) GetTribbles(args *tribrpc.GetTribblesArgs, reply *tribrpc.GetTribblesReply) error {
	user_id := util.FormatUserKey(args.UserID)

	// If the user_id doesn't exist
	// Reture NoSuchUser
	_, err := ts.lib_store.Get(user_id)
	if err != nil {
		fmt.Println(1)
		reply.Status = tribrpc.NoSuchUser
		return nil
	}

	// Return a list of tribble_ids
	raw_tribble_list, _ := ts.lib_store.GetList(util.FormatTribListKey(args.UserID))

	if raw_tribble_list == nil {
		reply.Status = tribrpc.OK
		return nil
	}

	// Sort the tribble_ids by timestamp reversely
	sort.Sort(SortTribbleByTimestamp(raw_tribble_list))

	counter := 0
	tribble_list := make([]tribrpc.Tribble, 100)
	for _, tid := range raw_tribble_list {
		tribble, err := ts.lib_store.Get(tid)
		if err == nil {
			// var t tribrpc.Tribble
			json.Unmarshal([]byte(tribble), &tribble_list[counter])
			counter += 1
		}
		if counter >= 100 {
			break
		}
	}

	reply.Status = tribrpc.OK
	reply.Tribbles = tribble_list[:counter]
	return nil
}