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87 lines
2.4 KiB
87 lines
2.4 KiB
package service
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import (
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"context"
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"encoding/json"
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"fmt"
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"github.com/IBM/sarama"
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"github.com/TremblingV5/DouTok/applications/relation/pack"
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"github.com/TremblingV5/DouTok/kitex_gen/relation"
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"github.com/TremblingV5/DouTok/pkg/constants"
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"github.com/cloudwego/kitex/pkg/klog"
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)
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type RelationActionService struct {
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ctx context.Context
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}
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func NewRelationActionService(ctx context.Context) *RelationActionService {
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return &RelationActionService{ctx: ctx}
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}
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// 关注 || 取关动作
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func (s *RelationActionService) RelationAction(req *relation.DouyinRelationActionRequest) error {
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// 在 SafeMap 中更新局部关注数和粉丝数
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followKey := fmt.Sprintf("%s%d", constants.FollowCount, req.UserId)
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followerKey := fmt.Sprintf("%s%d", constants.FollowerCount, req.ToUserId)
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follow, ok := ConcurrentMap.Get(followKey)
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if !ok {
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klog.Infof("get follow count from concurrentMap false")
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}
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follower, ok := ConcurrentMap.Get(followerKey)
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if !ok {
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klog.Infof("get follow count from concurrentMap false")
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}
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op := int64(0)
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if req.ActionType == 1 {
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op = 1
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} else {
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op = -1
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}
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// TODO 如果关注或者取关对应的增加 safemap 值,前提是需要验证重复性操作
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mu.Lock()
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if follow == nil {
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klog.Infof("set follow %s, %d\n", followKey, op)
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ConcurrentMap.Set(followKey, op)
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} else {
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klog.Infof("set follow %s, %d\n", followKey, follow.(int64)+op)
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ConcurrentMap.Set(followKey, follow.(int64)+op)
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}
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if follower == nil {
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klog.Infof("set follower %s, %d\n", followerKey, op)
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ConcurrentMap.Set(followerKey, op)
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} else {
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klog.Infof("set follower %s, %d\n", followerKey, follower.(int64)+op)
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ConcurrentMap.Set(followerKey, follower.(int64)+op)
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}
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follow, ok = ConcurrentMap.Get(followKey)
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if !ok {
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klog.Errorf("concurrentMap get false")
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}
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follower, ok = ConcurrentMap.Get(followerKey)
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if !ok {
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klog.Errorf("concurrentMap get false")
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}
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klog.Infof("%s follow = %d\n", followKey, follow.(int64))
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klog.Infof("%s follower = %d\n", followerKey, follower.(int64))
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mu.Unlock()
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// 使用同步producer,将消息存入 kafka
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// 构建消息
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val, err := json.Marshal(pack.NewRelation(req))
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if err != nil {
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return err
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}
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msg := &sarama.ProducerMessage{
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Topic: ViperConfig.Viper.GetStringSlice("Kafka.Topics")[0],
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Value: sarama.StringEncoder(val),
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}
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partition, offset, err := SyncProducer.SendMessage(msg)
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if err == nil {
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klog.Infof("produce success, partition: %d, offset: %d\n", partition, offset)
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} else {
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return err
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}
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return nil
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}
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