bilibili-backup/app/service/main/history/dao/redis.go
2019-04-22 02:59:20 +00:00

395 lines
10 KiB
Go

package dao
import (
"context"
"encoding/json"
"fmt"
"strconv"
pb "go-common/app/service/main/history/api/grpc"
"go-common/app/service/main/history/model"
"go-common/library/cache/redis"
"go-common/library/log"
)
const (
_keySwitch = "s_" // mid -> bit(value)
_bucket = 1000 // bit bucket
)
// keyHistory return history key.
func keyHistory(business string, mid int64) string {
return fmt.Sprintf("h_%d_%s", mid, business)
}
// keyIndex return history index key.
func keyIndex(business string, mid int64) string {
return fmt.Sprintf("i_%d_%s", mid, business)
}
// keySwitch return Switch key.
func keySwitch(mid int64) string {
return _keySwitch + strconv.FormatInt(mid/_bucket, 10)
}
// ListCacheByTime get aids from redis where score.
func (d *Dao) ListCacheByTime(c context.Context, business string, mid int64, start int64) (aids []int64, err error) {
conn := d.redis.Get(c)
defer conn.Close()
values, err := redis.Values(conn.Do("ZRANGEBYSCORE", keyIndex(business, mid), start, "INF", "WITHSCORES"))
if err != nil {
log.Error("conn.Do(ZRANGEBYSCORE %v) error(%v)", keyIndex(business, mid), err)
return
}
if len(values) == 0 {
return
}
var aid, unix int64
for len(values) > 0 {
if values, err = redis.Scan(values, &aid, &unix); err != nil {
log.Error("redis.Scan(%v) error(%v)", values, err)
return
}
aids = append(aids, aid)
}
return
}
// ListsCacheByTime get aids from redis where score.
func (d *Dao) ListsCacheByTime(c context.Context, businesses []string, mid int64, viewAt, ps int64) (res map[string][]int64, err error) {
conn := d.redis.Get(c)
defer conn.Close()
var count int
for _, business := range businesses {
if err = conn.Send("ZREVRANGEBYSCORE", keyIndex(business, mid), viewAt, "-INF", "LIMIT", 0, ps); err != nil {
log.Error("conn.Do(ZRANGEBYSCORE %v) error(%v)", keyIndex(business, mid), err)
return
}
count++
}
if err = conn.Flush(); err != nil {
log.Error("conn.Flush() error(%v)", err)
return
}
for i := 0; i < count; i++ {
var values []int64
values, err = redis.Int64s(conn.Receive())
if err != nil {
if err == redis.ErrNil {
err = nil
continue
}
log.Error("receive error(%v)", err)
return
}
if len(values) == 0 {
continue
}
if res == nil {
res = make(map[string][]int64)
}
res[businesses[i]] = values
}
return
}
// SetUserHideCache set the user hide to redis.
func (d *Dao) SetUserHideCache(c context.Context, mid, value int64) (err error) {
key := keySwitch(mid)
conn := d.redis.Get(c)
if _, err = conn.Do("HSET", key, mid%_bucket, value); err != nil {
log.Error("conn.Do(HSET %s,%d) error(%v)", key, value, err)
}
conn.Close()
return
}
// UserHideCache return user hide state from redis.
func (d *Dao) UserHideCache(c context.Context, mid int64) (value int64, err error) {
key := keySwitch(mid)
conn := d.redis.Get(c)
defer conn.Close()
if value, err = redis.Int64(conn.Do("HGET", key, mid%_bucket)); err != nil {
if err == redis.ErrNil {
return model.HideStateNotFound, nil
}
log.Error("conn.Do(HGET %s) error(%v)", key, err)
}
return
}
// HistoriesCache return the user histories from redis.
func (d *Dao) HistoriesCache(c context.Context, mid int64, hs map[string][]int64) (res map[string]map[int64]*model.History, err error) {
var (
values, businesses []string
aid int64
k int
)
conn := d.redis.Get(c)
defer conn.Close()
for business, aids := range hs {
businesses = append(businesses, business)
key := keyHistory(business, mid)
args := []interface{}{key}
for _, aid := range aids {
args = append(args, aid)
}
if err = conn.Send("HMGET", args...); err != nil {
log.Error("conn.Send(HMGET %v %v) error(%v)", key, aids, err)
return
}
}
if err = conn.Flush(); err != nil {
log.Error("conn.Flush() error(%v)", err)
return
}
for i := 0; i < len(hs); i++ {
if values, err = redis.Strings(conn.Receive()); err != nil {
log.Error("conn.Receive error(%v)", err)
if err == redis.ErrNil {
continue
}
return
}
if res == nil {
res = make(map[string]map[int64]*model.History)
}
business := businesses[i]
for k, aid = range hs[business] {
if values[k] == "" {
continue
}
h := &model.History{}
if err = json.Unmarshal([]byte(values[k]), h); err != nil {
log.Error("json.Unmarshal(%s) error(%v)", values[k], err)
err = nil
continue
}
h.BusinessID = d.BusinessNames[h.Business].ID
if res[business] == nil {
res[business] = make(map[int64]*model.History)
}
res[business][aid] = h
}
}
return
}
// ClearHistoryCache clear the user redis.
func (d *Dao) ClearHistoryCache(c context.Context, mid int64, businesses []string) (err error) {
var conn = d.redis.Get(c)
var count int
defer conn.Close()
for _, business := range businesses {
idxKey := keyIndex(business, mid)
key := keyHistory(business, mid)
if err = conn.Send("DEL", idxKey); err != nil {
log.Error("conn.Send(DEL %s) error(%v)", idxKey, err)
return
}
count++
if err = conn.Send("DEL", key); err != nil {
log.Error("conn.Send(DEL %s) error(%v)", key, err)
return
}
count++
}
if err = conn.Flush(); err != nil {
log.Error("conn.Flush() error(%v)", err)
return
}
for i := 0; i < count; i++ {
if _, err = conn.Receive(); err != nil {
log.Error("conn.Receive() error(%v)", err)
return
}
}
return
}
// DelHistoryCache delete the history redis.
func (d *Dao) DelHistoryCache(c context.Context, arg *pb.DelHistoriesReq) (err error) {
conn := d.redis.Get(c)
defer conn.Close()
var count int
for _, r := range arg.Records {
var (
indxKey = keyIndex(r.Business, arg.Mid)
key = keyHistory(r.Business, arg.Mid)
)
if err = conn.Send("ZREM", indxKey, r.ID); err != nil {
log.Error("conn.Send(ZREM %s,%v) error(%v)", indxKey, r.ID, err)
return
}
count++
if err = conn.Send("HDEL", key, r.ID); err != nil {
log.Error("conn.Send(HDEL %s,%v) error(%v)", key, r.ID, err)
return
}
count++
}
if err = conn.Flush(); err != nil {
log.Error("conn.Flush() error(%v)", err)
return
}
for i := 0; i < count; i++ {
if _, err = conn.Receive(); err != nil {
log.Error("conn.Receive() error(%v)", err)
return
}
}
return
}
// AddHistoryCache add the history to redis.
func (d *Dao) AddHistoryCache(c context.Context, h *pb.AddHistoryReq) (err error) {
var (
b []byte
mid = h.Mid
idxKey, key = keyIndex(h.Business, mid), keyHistory(h.Business, mid)
)
if b, err = json.Marshal(h); err != nil {
return
}
conn := d.redis.Get(c)
defer conn.Close()
if err = conn.Send("ZADD", idxKey, h.ViewAt, h.Kid); err != nil {
log.Error("conn.Send(ZADD %s,%d) error(%v)", key, h.Kid, err)
return
}
if err = conn.Send("HSET", key, h.Kid, string(b)); err != nil {
log.Error("conn.Send(HSET %s,%d) error(%v)", key, h.Kid, err)
return
}
if err = conn.Send("EXPIRE", idxKey, d.redisExpire); err != nil {
log.Error("conn.Send(EXPIRE) error(%v)", err)
return
}
if err = conn.Send("EXPIRE", key, d.redisExpire); err != nil {
log.Error("conn.Send(EXPIRE) error(%v)", err)
return
}
if err = conn.Flush(); err != nil {
log.Error("conn.Flush() error(%v)", err)
return
}
for i := 0; i < 2+2; i++ {
if _, err = conn.Receive(); err != nil {
log.Error("conn.Receive() error(%v)", err)
return
}
}
return
}
// AddHistoriesCache add the user to redis.
func (d *Dao) AddHistoriesCache(c context.Context, hs []*pb.AddHistoryReq) (err error) {
if len(hs) == 0 {
return
}
conn := d.redis.Get(c)
defer conn.Close()
var count int
for _, h := range hs {
var (
b []byte
mid = h.Mid
idxKey, key = keyIndex(h.Business, mid), keyHistory(h.Business, mid)
)
if b, err = json.Marshal(h); err != nil {
continue
}
if err = conn.Send("ZADD", idxKey, h.ViewAt, h.Kid); err != nil {
log.Error("conn.Send(ZADD %s,%d) error(%v)", key, h.Kid, err)
continue
}
count++
if err = conn.Send("HSET", key, h.Kid, string(b)); err != nil {
log.Error("conn.Send(HSET %s,%d) error(%v)", key, h.Kid, err)
continue
}
count++
if err = conn.Send("EXPIRE", idxKey, d.redisExpire); err != nil {
log.Error("conn.Send(EXPIRE) error(%v)", err)
continue
}
count++
if err = conn.Send("EXPIRE", key, d.redisExpire); err != nil {
log.Error("conn.Send(EXPIRE) error(%v)", err)
continue
}
count++
}
if err = conn.Flush(); err != nil {
log.Error("conn.Flush() error(%v)", err)
return
}
for i := 0; i < count; i++ {
if _, err = conn.Receive(); err != nil {
log.Error("conn.Receive() error(%v)", err)
return
}
}
return
}
// TrimCache trim history.
func (d *Dao) TrimCache(c context.Context, business string, mid int64, limit int) (err error) {
conn := d.redis.Get(c)
defer conn.Close()
aids, err := redis.Int64s(conn.Do("ZRANGE", keyIndex(business, mid), 0, -limit-1))
if err != nil {
log.Error("conn.Do(ZRANGE %v) error(%v)", keyIndex(business, mid), err)
return
}
if len(aids) == 0 {
return
}
return d.DelCache(c, business, mid, aids)
}
// DelCache delete the history redis.
func (d *Dao) DelCache(c context.Context, business string, mid int64, aids []int64) (err error) {
var (
key1 = keyIndex(business, mid)
key2 = keyHistory(business, mid)
args1 = []interface{}{key1}
args2 = []interface{}{key2}
)
for _, aid := range aids {
args1 = append(args1, aid)
args2 = append(args2, aid)
}
conn := d.redis.Get(c)
defer conn.Close()
if err = conn.Send("ZREM", args1...); err != nil {
log.Error("conn.Send(ZREM %s,%v) error(%v)", key1, aids, err)
return
}
if err = conn.Send("HDEL", args2...); err != nil {
log.Error("conn.Send(HDEL %s,%v) error(%v)", key2, aids, err)
return
}
if err = conn.Flush(); err != nil {
log.Error("conn.Flush() error(%v)", err)
return
}
for i := 0; i < 2; i++ {
if _, err = conn.Receive(); err != nil {
log.Error("conn.Receive() error(%v)", err)
return
}
}
return
}
// pingRedis ping redis.
func (d *Dao) pingRedis(c context.Context) (err error) {
conn := d.redis.Get(c)
if _, err = conn.Do("SET", "PING", "PONG"); err != nil {
log.Error("redis: conn.Do(SET,PING,PONG) error(%v)", err)
}
conn.Close()
return
}