You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.6 KiB
60 lines
1.6 KiB
package localcache
|
|
|
|
import (
|
|
"context"
|
|
"sync"
|
|
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/discoveryregistry"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/errs"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/proto/group"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/rpcclient"
|
|
)
|
|
|
|
type GroupLocalCache struct {
|
|
lock sync.Mutex
|
|
cache map[string]GroupMemberIDsHash
|
|
client *rpcclient.Group
|
|
}
|
|
|
|
type GroupMemberIDsHash struct {
|
|
memberListHash uint64
|
|
userIDs []string
|
|
}
|
|
|
|
func NewGroupLocalCache(discov discoveryregistry.SvcDiscoveryRegistry) *GroupLocalCache {
|
|
client := rpcclient.NewGroup(discov)
|
|
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()
|
|
defer g.lock.Unlock()
|
|
localHashInfo, ok := g.cache[groupID]
|
|
if ok && localHashInfo.memberListHash == resp.GroupAbstractInfos[0].GroupMemberListHash {
|
|
return localHashInfo.userIDs, nil
|
|
}
|
|
groupMembersResp, err := g.client.Client.GetGroupMemberUserIDs(ctx, &group.GetGroupMemberUserIDsReq{
|
|
GroupID: groupID,
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
g.cache[groupID] = GroupMemberIDsHash{
|
|
memberListHash: resp.GroupAbstractInfos[0].GroupMemberListHash,
|
|
userIDs: groupMembersResp.UserIDs,
|
|
}
|
|
return g.cache[groupID].userIDs, nil
|
|
}
|