mirror of
https://github.com/astaxie/beego.git
synced 2024-11-29 21:11:28 +00:00
bf836a2126
thanks for the good suggestion
152 lines
2.6 KiB
Go
152 lines
2.6 KiB
Go
package cache
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"github.com/garyburd/redigo/redis"
|
|
)
|
|
|
|
var (
|
|
DefaultKey string = "beecacheRedis"
|
|
)
|
|
|
|
type RedisCache struct {
|
|
c redis.Conn
|
|
conninfo string
|
|
key string
|
|
}
|
|
|
|
func NewRedisCache() *RedisCache {
|
|
return &RedisCache{key: DefaultKey}
|
|
}
|
|
|
|
func (rc *RedisCache) Get(key string) interface{} {
|
|
if rc.c == nil {
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
}
|
|
v, err := rc.c.Do("HGET", rc.key, key)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
return v
|
|
}
|
|
|
|
func (rc *RedisCache) Put(key string, val interface{}, timeout int64) error {
|
|
if rc.c == nil {
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
_, err := rc.c.Do("HSET", rc.key, key, val)
|
|
return err
|
|
}
|
|
|
|
func (rc *RedisCache) Delete(key string) error {
|
|
if rc.c == nil {
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
_, err := rc.c.Do("HDEL", rc.key, key)
|
|
return err
|
|
}
|
|
|
|
func (rc *RedisCache) IsExist(key string) bool {
|
|
if rc.c == nil {
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return false
|
|
}
|
|
}
|
|
v, err := redis.Bool(rc.c.Do("HEXISTS", rc.key, key))
|
|
if err != nil {
|
|
return false
|
|
}
|
|
return v
|
|
}
|
|
|
|
func (rc *RedisCache) Incr(key string) error {
|
|
if rc.c == nil {
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
_, err := redis.Bool(rc.c.Do("HINCRBY", rc.key, key, 1))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rc *RedisCache) Decr(key string) error {
|
|
if rc.c == nil {
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
_, err := redis.Bool(rc.c.Do("HINCRBY", rc.key, key, -1))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rc *RedisCache) ClearAll() error {
|
|
if rc.c == nil {
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
_, err := rc.c.Do("DEL", rc.key)
|
|
return err
|
|
}
|
|
|
|
func (rc *RedisCache) StartAndGC(config string) error {
|
|
var cf map[string]string
|
|
json.Unmarshal([]byte(config), &cf)
|
|
if _, ok := cf["key"]; !ok {
|
|
cf["key"] = DefaultKey
|
|
}
|
|
if _, ok := cf["conn"]; !ok {
|
|
return errors.New("config has no conn key")
|
|
}
|
|
rc.key = cf["key"]
|
|
rc.conninfo = cf["conn"]
|
|
var err error
|
|
rc.c, err = rc.connectInit()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if rc.c == nil {
|
|
return errors.New("dial tcp conn error")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (rc *RedisCache) connectInit() (redis.Conn, error) {
|
|
c, err := redis.Dial("tcp", rc.conninfo)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return c, nil
|
|
}
|
|
|
|
func init() {
|
|
Register("redis", NewRedisCache())
|
|
}
|