/
redis.go
132 lines (122 loc) · 3.38 KB
/
redis.go
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package main
import (
"bytes"
"compress/zlib"
"encoding/json"
"fmt"
"io/ioutil"
"time"
"github.com/garyburd/redigo/redis"
"github.com/op/go-logging"
)
type RedisWrapper struct {
redisPool *redis.Pool
configure *Configure
logger *logging.Logger
}
func NewRedisWrapper(configure *Configure, logger *logging.Logger) *RedisWrapper {
return &RedisWrapper{
configure: configure,
redisPool: &redis.Pool{
MaxIdle: 64,
IdleTimeout: 60 * time.Second,
Dial: func() (redis.Conn, error) {
c, err := redis.Dial("tcp", configure.RedisAddress)
if err != nil {
return nil, err
}
return c, err
},
TestOnBorrow: func(c redis.Conn, t time.Time) error {
_, err := c.Do("PING")
return err
},
},
logger: logger,
}
}
func (rw *RedisWrapper) GetFrequency(req *ParsedRequest, creatives *InventoryCollection) (response []int, err error) {
conn := rw.redisPool.Get()
defer conn.Close()
frIds := make([]interface{}, creatives.Len())
for index, value := range creatives.Data {
frIds[index] = fmt.Sprintf("%v%v_%v",
rw.configure.RedisFrequencyPrefix, req.Cid, value.ModelSign1)
}
if response, err = redis.Ints(conn.Do("mget", frIds...)); err != nil {
rw.logger.Warning("redis error: %v", err.Error())
}
return
}
func (rw *RedisWrapper) IncrFrequency(req *ParsedRequest, modelSign1 int) (err error) {
conn := rw.redisPool.Get()
defer conn.Close()
frId := fmt.Sprintf("%v%v_%v",
rw.configure.RedisFrequencyPrefix, req.Cid, modelSign1)
if _, err = conn.Do("incr", frId); err != nil {
rw.logger.Warning("redis error: %v", err.Error())
}
return
}
func (rw *RedisWrapper) SaveRequest(req *ParsedRequest, creatives []*Inventory, timeout int) error {
conn := rw.redisPool.Get()
defer conn.Close()
creativesForRedis := make([]*InventoryForRedis, len(creatives))
for index, value := range creatives {
creativesForRedis[index] = &InventoryForRedis{
AdId: value.AdId,
Frequency: value.Frequency,
}
}
req.Creatives = creativesForRedis
body, err := json.Marshal(*req)
if err != nil {
return err
}
var buf bytes.Buffer
zlibWriter, err := zlib.NewWriterLevel(&buf, zlib.BestSpeed)
if err != nil {
return err
}
if _, err := zlibWriter.Write(body); err != nil {
return err
}
zlibWriter.Close()
if _, err := conn.Do("setex", rw.configure.RedisCachePrefix+req.Id, timeout, buf.Bytes()); err != nil {
rw.logger.Warning("redis error: %v", err.Error())
return err
}
return nil
}
func (rw *RedisWrapper) GetRequest(id string) (*ParsedRequest, error) {
conn := rw.redisPool.Get()
defer conn.Close()
if response, err := redis.Bytes(conn.Do("get", rw.configure.RedisCachePrefix+id)); err != nil {
if err == redis.ErrNil {
// 查不到数据算正常
} else {
rw.logger.Warning("redis error: %v", err.Error())
}
return nil, err
} else {
req := &ParsedRequest{}
buf := bytes.NewReader(response)
if zlibReader, err := zlib.NewReader(buf); err != nil {
return nil, err
} else if body, err := ioutil.ReadAll(zlibReader); err != nil {
return nil, err
} else if err := json.Unmarshal(body, req); err != nil {
return nil, err
} else {
return req, nil
}
}
}
func (rw *RedisWrapper) SetExpire(requestId string, expiredTime int) (err error) {
conn := rw.redisPool.Get()
defer conn.Close()
if _, err = conn.Do("expire", "param:"+requestId, expiredTime); err != nil {
rw.logger.Warning("redis error: %v", err.Error())
}
return
}