openbilibili/app/service/main/vipinfo/dao/dao.cache.go

// Code generated by $GOPATH/src/go-common/app/tool/cache/gen. DO NOT EDIT.

/*
  Package dao is a generated cache proxy package.
  It is generated from:
  type _cache interface {
		// cache: -batch=50 -max_group=10 -batch_err=continue -nullcache=&model.VipInfoDB{VipType:0} -check_null_code=$!=nil
		Infos(c context.Context, keys []int64) (map[int64]*model.VipInfoDB, error)
		// cache: -nullcache=&model.VipInfoDB{VipType:0} -check_null_code=$!=nil
		Info(c context.Context, key int64) (*model.VipInfoDB, error)
	}
*/

package dao

import (
	"context"
	"sync"

	"go-common/app/service/main/vipinfo/model"
	"go-common/library/net/metadata"
	"go-common/library/stat/prom"
	"go-common/library/sync/errgroup"
)

var _ _cache

// Infos get data from cache if miss will call source method, then add to cache.
func (d *Dao) Infos(c context.Context, keys []int64) (res map[int64]*model.VipUserInfo, err error) {
	if len(keys) == 0 {
		return
	}
	addCache := true
	res, err = d.CacheInfos(c, keys)
	if err != nil {
		addCache = false
		res = nil
		err = nil
	}
	var miss []int64
	for _, key := range keys {
		if (res == nil) || (res[key] == nil) {
			miss = append(miss, key)
		}
	}
	prom.CacheHit.Add("Infos", int64(len(keys)-len(miss)))
	if len(miss) == 0 {
		return
	}
	var missData map[int64]*model.VipUserInfo
	missLen := len(miss)
	prom.CacheMiss.Add("Infos", int64(missLen))
	mutex := sync.Mutex{}
	for i := 0; i < missLen; i += 50 * 10 {
		var subKeys []int64
		group := &errgroup.Group{}
		ctx := c
		if (i + 50*10) > missLen {
			subKeys = miss[i:]
		} else {
			subKeys = miss[i : i+50*10]
		}
		missSubLen := len(subKeys)
		for j := 0; j < missSubLen; j += 50 {
			var ks []int64
			if (j + 50) > missSubLen {
				ks = subKeys[j:]
			} else {
				ks = subKeys[j : j+50]
			}
			group.Go(func() (err error) {
				data, err := d.RawInfos(ctx, ks)
				mutex.Lock()
				for k, v := range data {
					if missData == nil {
						missData = make(map[int64]*model.VipUserInfo, len(keys))
					}
					missData[k] = v
				}
				mutex.Unlock()
				return
			})
		}
		err1 := group.Wait()
		if err1 != nil {
			err = err1
		}
	}
	if res == nil {
		res = make(map[int64]*model.VipUserInfo)
	}
	for k, v := range missData {
		res[k] = v
	}
	if err != nil {
		return
	}
	for _, key := range keys {
		if res[key] == nil {
			if missData == nil {
				missData = make(map[int64]*model.VipUserInfo, len(keys))
			}
			missData[key] = &model.VipUserInfo{VipType: 0, VipStatus: 0}
			res[key] = missData[key]
		}
	}
	if !addCache {
		return
	}
	d.cache.Save(func() {
		d.AddCacheInfos(metadata.WithContext(c), missData)
	})
	return
}

// Info get data from cache if miss will call source method, then add to cache.
func (d *Dao) Info(c context.Context, id int64) (res *model.VipUserInfo, err error) {
	addCache := true
	res, err = d.CacheInfo(c, id)
	if err != nil {
		addCache = false
		err = nil
	}
	if res != nil {
		prom.CacheHit.Incr("Info")
		return
	}
	prom.CacheMiss.Incr("Info")
	res, err = d.RawInfo(c, id)
	if err != nil {
		return
	}
	if res == nil {
		res = &model.VipUserInfo{VipType: 0, VipStatus: 0}
	}
	if !addCache {
		return
	}
	d.cache.Save(func() {
		d.AddCacheInfo(metadata.WithContext(c), id, res)
	})
	return
}