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pool.go
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pool.go
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package myredis
import (
"fmt"
"time"
"github.com/gomodule/redigo/redis"
"github.com/xxjwxc/public/mylog"
)
type redisConPool struct {
base
}
func (mc *redisConPool) Destory() {
mc.mtx.Lock()
defer mc.mtx.Unlock()
if mc.pool != nil {
mc.pool.Close()
}
}
func (mc *redisConPool) GetRedisClient() redis.Conn {
if mc.pool == nil { // 创建连接
mc.mtx.Lock()
defer mc.mtx.Unlock()
mc.pool = &redis.Pool{
MaxIdle: mc.conf.maxIdle,
MaxActive: mc.conf.maxActive,
IdleTimeout: mc.conf.timeout,
Dial: func() (redis.Conn, error) {
return mc.Dial()
},
Wait: (mc.conf.maxActive == 0),
TestOnBorrow: func(c redis.Conn, t time.Time) error {
_, err := c.Do("PING")
if err != nil {
mylog.Errorf("ping redis error: %s", err)
return err
}
return nil
},
}
}
return mc.pool.Get()
}
// Ping 判断是否能ping通
func (mc *redisConPool) Ping() bool {
return mc.ping(mc.GetRedisClient())
}
// Add 添加一个缓存 lifeSpan:缓存时间,0表示永不超时
func (mc *redisConPool) Add(key interface{}, value interface{}, lifeSpan time.Duration) error {
var args []interface{}
args = append(args, mc.getKey(key), mc.encodeValue(value))
if lifeSpan > 0 {
if usePrecise(lifeSpan) {
args = append(args, "px", formatMs(lifeSpan))
} else {
args = append(args, "ex", formatSec(lifeSpan))
}
} else if lifeSpan == keepTTL {
args = append(args, "keepttl")
}
con := mc.GetRedisClient()
defer con.Close()
repy, err := mc.DO(con, "SET", args...)
if mc.conf.isLog {
mylog.Info(redis.String(repy, err))
}
if err != nil {
mylog.Error(err)
}
return err
}
// Value 查找一个cache
func (mc *redisConPool) Value(key interface{}, value interface{}) (err error) {
con := mc.GetRedisClient()
defer con.Close()
repy, err := mc.DO(con, "GET", mc.getKey(key))
if err != nil {
mylog.Error(err)
return err
}
return mc.decodeValue(repy, value)
}
// IsExist 判断key是否存在
func (mc *redisConPool) IsExist(key interface{}) bool {
con := mc.GetRedisClient()
defer con.Close()
repy, err := mc.DO(con, "EXISTS", mc.getKey(key))
if err != nil {
mylog.Error(err)
return false
}
exist, err := redis.Bool(repy, err) // 转化bool格式
if err != nil {
mylog.Error(err)
return false
}
return exist
}
// Delete 删除一个cache
func (mc *redisConPool) Delete(key interface{}) error {
con := mc.GetRedisClient()
defer con.Close()
_, err := mc.DO(con, "del", mc.getKey(key))
if err != nil {
mylog.Error(err)
return err
}
return err
}
// Clear 清空表內容
func (mc *redisConPool) Clear() error {
out, err := mc.GetKeyS("*")
if err != nil {
return err
}
for _, v := range out {
err = mc.Delete(v)
if err != nil {
return err
}
}
return err
}
// GetKeyS 查询所有key
func (mc *redisConPool) GetKeyS(key interface{}) ([]string, error) {
con := mc.GetRedisClient()
defer con.Close()
var keys []string
repy, err := mc.DO(con, "keys", mc.getKey(key))
if err != nil {
mylog.Error(err)
return keys, err
}
switch t := repy.(type) {
case []interface{}:
for _, v := range t {
out, err := redis.String(v, nil)
if err != nil {
mylog.Error(err)
}
keys = append(keys, mc.fixKeyGroupName(out))
}
default:
return keys, fmt.Errorf("decodeValue err in type not find:%v", t)
}
return keys, err
}
func (mc *redisConPool) Do(commandName string, args ...interface{}) (reply interface{}, err error) {
con := mc.GetRedisClient()
defer con.Close()
return mc.DO(con, commandName, args...)
}
// Close 关闭一个连接
func (mc *redisConPool) Close() (err error) {
return nil
}
// Refresh 更新时间
func (mc *redisConPool) Refresh(key interface{}, lifeSpan time.Duration) error {
expire := "EXPIRE"
var args []interface{}
args = append(args, mc.getKey(key))
if lifeSpan > 0 {
if usePrecise(lifeSpan) {
expire = "PEXPIRE"
args = append(args, formatMs(lifeSpan))
} else {
expire = "EXPIRE"
args = append(args, formatSec(lifeSpan))
}
} else if lifeSpan == keepTTL {
expire = "EXPIRE"
args = append(args, 2147483647)
}
con := mc.GetRedisClient()
defer con.Close()
repy, err := mc.DO(con, expire, args...)
if mc.conf.isLog {
mylog.Info(redis.String(repy, err))
}
if err != nil {
mylog.Error(err)
}
return err
}