feat: local cache

pkg/common/db/localcache/group.go

@@ -1,78 +0,0 @@
-// Copyright © 2023 OpenIM. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package localcache
-
-import (
-	"context"
-	"sync"
-
-	"github.com/OpenIMSDK/protocol/group"
-	"github.com/OpenIMSDK/tools/errs"
-
-	"github.com/openimsdk/open-im-server/v3/pkg/rpcclient"
-)
-
-type GroupLocalCache struct {
-	lock   sync.Mutex
-	cache  map[string]GroupMemberIDsHash
-	client *rpcclient.GroupRpcClient
-}
-
-type GroupMemberIDsHash struct {
-	memberListHash uint64
-	userIDs        []string
-}
-
-func NewGroupLocalCache(client *rpcclient.GroupRpcClient) *GroupLocalCache {
-	return &GroupLocalCache{
-		cache:  make(map[string]GroupMemberIDsHash, 0),
-		client: client,
-	}
-}
-
-func (g *GroupLocalCache) GetGroupMemberIDs(ctx context.Context, groupID string) ([]string, error) {
-	resp, err := g.client.Client.GetGroupAbstractInfo(ctx, &group.GetGroupAbstractInfoReq{
-		GroupIDs: []string{groupID},
-	})
-	if err != nil {
-		return nil, err
-	}
-	if len(resp.GroupAbstractInfos) < 1 {
-		return nil, errs.ErrGroupIDNotFound
-	}
-
-	g.lock.Lock()
-	localHashInfo, ok := g.cache[groupID]
-	if ok && localHashInfo.memberListHash == resp.GroupAbstractInfos[0].GroupMemberListHash {
-		g.lock.Unlock()
-		return localHashInfo.userIDs, nil
-	}
-	g.lock.Unlock()
-
-	groupMembersResp, err := g.client.Client.GetGroupMemberUserIDs(ctx, &group.GetGroupMemberUserIDsReq{
-		GroupID: groupID,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	g.lock.Lock()
-	defer g.lock.Unlock()
-	g.cache[groupID] = GroupMemberIDsHash{
-		memberListHash: resp.GroupAbstractInfos[0].GroupMemberListHash,
-		userIDs:        groupMembersResp.UserIDs,
-	}
-	return g.cache[groupID].userIDs, nil
-}