/
cache.go
81 lines (63 loc) · 1.35 KB
/
cache.go
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package lib
import (
"fmt"
"log"
"github.com/gomodule/redigo/redis"
)
type Cache struct {
Connection *redis.Pool
}
type ICache interface {
Save(string) error
Exists(string) (bool, error)
Delete(string) (bool, error)
}
func NewCache(env Env) ICache {
host := env.CacheHost
port := env.CachePort
password := env.CachePassword
RedisConn := &redis.Pool{
MaxIdle: 80,
MaxActive: 12000,
Dial: func() (redis.Conn, error) {
c, err := redis.Dial("tcp", fmt.Sprintf("%s:%s", host, port))
if err != nil {
return nil, err
}
if password != "" {
if _, err = c.Do("AUTH", password); err != nil {
c.Close()
return nil, err
}
}
return c, err
},
}
log.Print("Cache connection established")
return &Cache{RedisConn}
}
// Set a key/value
func (c Cache) Save(key string) error {
log.Println("cache:: save")
conn := c.Connection.Get()
defer conn.Close()
_, err := conn.Do("SET", key, true)
if err != nil {
return err
}
return nil
}
// Get gets a key
func (c Cache) Exists(key string) (bool, error) {
log.Println("cache:: exists")
conn := c.Connection.Get()
defer conn.Close()
return redis.Bool(conn.Do("EXISTS", key))
}
// Delete delete a key
func (c Cache) Delete(key string) (bool, error) {
log.Println("cache:: Delete")
conn := c.Connection.Get()
defer conn.Close()
return redis.Bool(conn.Do("DEL", key))
}