go-common/app/interface/main/web/dao/wechat.go
2019-04-22 18:49:16 +08:00

121 lines
3.0 KiB
Go

package dao
import (
"context"
"encoding/json"
"net/url"
"go-common/app/interface/main/web/model"
"go-common/library/cache/redis"
"go-common/library/ecode"
"go-common/library/log"
"go-common/library/net/metadata"
)
const (
_wxHotURI = "hot-weixin.json"
_wxCacheKey = "wx_hot"
_wxBkCacheKey = _keyBakPrefix + _wxCacheKey
)
// WxHot get wx hot aids.
func (d *Dao) WxHot(c context.Context) (aids []int64, err error) {
ip := metadata.String(c, metadata.RemoteIP)
var res struct {
Code int `json:"code"`
List []*model.NewArchive `json:"list"`
}
if err = d.httpBigData.Get(c, d.wxHotURL, ip, url.Values{}, &res); err != nil {
log.Error("d.httpBigData.Get(%s) error(%v)", d.wxHotURL, err)
return
}
if res.Code != ecode.OK.Code() {
log.Error("d.httpBigData.Get(%s) error(%v)", d.wxHotURL, err)
err = ecode.Int(res.Code)
return
}
for _, v := range res.List {
if v.Aid > 0 {
aids = append(aids, v.Aid)
}
}
return
}
// WxHotCache get wx hot cache.
func (d *Dao) WxHotCache(c context.Context) (arcs []*model.WxArchive, err error) {
key := _wxCacheKey
conn := d.redis.Get(c)
defer conn.Close()
arcs, err = wxHotCache(conn, key)
return
}
// WxHotBakCache get wx hot bak cache.
func (d *Dao) WxHotBakCache(c context.Context) (arcs []*model.WxArchive, err error) {
key := _wxBkCacheKey
conn := d.redisBak.Get(c)
defer conn.Close()
arcs, err = wxHotCache(conn, key)
return
}
func wxHotCache(conn redis.Conn, key string) (res []*model.WxArchive, err error) {
var value []byte
if value, err = redis.Bytes(conn.Do("GET", key)); err != nil {
if err == redis.ErrNil {
err = nil
} else {
log.Error("conn.Do(GET, %s) error(%v)", key, err)
}
return
}
res = []*model.WxArchive{}
if err = json.Unmarshal(value, &res); err != nil {
log.Error("json.Unmarshal(%v) error(%v)", value, err)
}
return
}
// SetWxHotCache set wx hot to cache.
func (d *Dao) SetWxHotCache(c context.Context, arcs []*model.WxArchive) (err error) {
key := _wxCacheKey
conn := d.redis.Get(c)
defer conn.Close()
if err = d.setWxHotCache(c, conn, key, d.redisWxHotExpire, arcs); err != nil {
return
}
key = _wxBkCacheKey
connBak := d.redisBak.Get(c)
err = d.setWxHotCache(c, connBak, key, d.redisWxHotBakExpire, arcs)
connBak.Close()
return
}
func (d *Dao) setWxHotCache(c context.Context, conn redis.Conn, key string, expire int32, arcs []*model.WxArchive) (err error) {
var bs []byte
if bs, err = json.Marshal(arcs); err != nil {
log.Error("json.Marshal(%v) error (%v)", arcs, err)
return
}
if err = conn.Send("SET", key, bs); err != nil {
log.Error("conn.Send(SET, %s, %s) error(%v)", key, string(bs), err)
return
}
if err = conn.Send("EXPIRE", key, expire); err != nil {
log.Error("conn.Send(Expire, %s, %d) error(%v)", key, expire, 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
}