Resolving code conflicts after project directory changes and Add user subscription to the operation from rpc to db layer (#684)
* Resolving code conflicts after project directory changes and Add subscribe and unsubscribe mongodb operations * Organize and update module dependenciespull/692/head
pluto
1 year ago
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0b9ac4bd87
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4d816978ec
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// Copyright © 2023 OpenIM. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package unrelation
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import "context"
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// SubscribeUser collection constant.
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const (
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SubscribeUser = "subscribe_user"
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)
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// UserModel collection structure.
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type UserModel struct {
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UserID string `bson:"user_id" json:"userID"`
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UserIDList []string `bson:"user_id_list" json:"userIDList"`
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}
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func (UserModel) TableName() string {
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return SubscribeUser
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}
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// UserModelInterface Operation interface of user mongodb.
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type UserModelInterface interface {
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// AddSubscriptionList Subscriber's handling of thresholds.
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AddSubscriptionList(ctx context.Context, userID string, userIDList []string) error
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// UnsubscriptionList Handling of unsubscribe.
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UnsubscriptionList(ctx context.Context, userID string, userIDList []string) error
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// RemoveSubscribedListFromUser Among the unsubscribed users, delete the user from the subscribed list.
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RemoveSubscribedListFromUser(ctx context.Context, userID string, userIDList []string) error
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}
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@ -0,0 +1,141 @@
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// Copyright © 2023 OpenIM. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package unrelation
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import (
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"context"
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"github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/table/unrelation"
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"github.com/OpenIMSDK/tools/utils"
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"go.mongodb.org/mongo-driver/bson"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo/options"
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"log"
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)
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// prefixes and suffixes.
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const (
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SubscriptionPrefix = "subscription_prefix"
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SubscribedPrefix = "subscribed_prefix"
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)
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// MaximumSubscription Maximum number of subscriptions.
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const (
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MaximumSubscription = 3000
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)
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func NewUserMongoDriver(database *mongo.Database) unrelation.UserModelInterface {
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return &UserMongoDriver{
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userCollection: database.Collection(unrelation.SubscribeUser),
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}
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}
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type UserMongoDriver struct {
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userCollection *mongo.Collection
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}
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// AddSubscriptionList Subscriber's handling of thresholds.
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func (u *UserMongoDriver) AddSubscriptionList(ctx context.Context, userID string, userIDList []string) error {
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// Check the number of lists in the key.
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filter := bson.M{SubscriptionPrefix + userID: bson.M{"$size": 1}}
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result, err := u.userCollection.Find(context.Background(), filter)
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if err != nil {
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return err
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}
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var newUserIDList []string
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for result.Next(context.Background()) {
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err := result.Decode(&newUserIDList)
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if err != nil {
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log.Fatal(err)
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}
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}
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// If the threshold is exceeded, pop out the previous MaximumSubscription - len(userIDList) and insert it.
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if len(newUserIDList)+len(userIDList) > MaximumSubscription {
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newUserIDList = newUserIDList[MaximumSubscription-len(userIDList):]
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_, err := u.userCollection.UpdateOne(
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ctx,
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bson.M{"user_id": SubscriptionPrefix + userID},
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bson.M{"$set": bson.M{"user_id_list": newUserIDList}},
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)
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if err != nil {
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return err
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}
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//for i := 1; i <= MaximumSubscription-len(userIDList); i++ {
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// _, err := u.userCollection.UpdateOne(
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// ctx,
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// bson.M{"user_id": SubscriptionPrefix + userID},
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// bson.M{SubscriptionPrefix + userID: bson.M{"$pop": -1}},
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// )
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// if err != nil {
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// return err
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// }
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//}
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}
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upsert := true
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opts := &options.UpdateOptions{
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Upsert: &upsert,
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}
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_, err = u.userCollection.UpdateOne(
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ctx,
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bson.M{"user_id": SubscriptionPrefix + userID},
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bson.M{"$addToSet": bson.M{"user_id_list": bson.M{"$each": userIDList}}},
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opts,
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)
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if err != nil {
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return err
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}
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for _, user := range userIDList {
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_, err = u.userCollection.UpdateOne(
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ctx,
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bson.M{"user_id": SubscribedPrefix + user},
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bson.M{"$addToSet": bson.M{"user_id_list": userID}},
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opts,
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)
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if err != nil {
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return utils.Wrap(err, "transaction failed")
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}
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}
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return nil
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}
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// UnsubscriptionList Handling of unsubscribe.
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func (u *UserMongoDriver) UnsubscriptionList(ctx context.Context, userID string, userIDList []string) error {
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_, err := u.userCollection.UpdateOne(
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ctx,
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bson.M{"user_id": SubscriptionPrefix + userID},
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bson.M{"$pull": bson.M{"user_id_list": bson.M{"$in": userIDList}}},
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)
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if err != nil {
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return err
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}
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err = u.RemoveSubscribedListFromUser(ctx, userID, userIDList)
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if err != nil {
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return err
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}
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return nil
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}
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// RemoveSubscribedListFromUser Among the unsubscribed users, delete the user from the subscribed list.
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func (u *UserMongoDriver) RemoveSubscribedListFromUser(ctx context.Context, userID string, userIDList []string) error {
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var newUserIDList []string
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for _, value := range userIDList {
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newUserIDList = append(newUserIDList, SubscribedPrefix+value)
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}
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_, err := u.userCollection.UpdateOne(
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ctx,
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bson.M{"user_id": bson.M{"$in": newUserIDList}},
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bson.M{"$pull": bson.M{"user_id_list": userID}},
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)
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return utils.Wrap(err, "")
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}
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