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redis.go
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/
redis.go
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package redis
import (
"net/url"
"github.com/botopolis/bot"
"github.com/go-redis/cache"
"github.com/go-redis/redis"
"github.com/vmihailenco/msgpack"
)
// Store conforms to the bot.Store interface
// It uses msgpack to cache records in Redis
type Store struct {
redis *redis.Client
cache *cache.Codec
}
// New allows for configuration of the redis plugin with a
// custom address
func New(address string) *Store {
url, err := url.Parse(address)
if err != nil {
panic(err)
}
redis := redis.NewClient(&redis.Options{Addr: url.Hostname() + ":" + url.Port()})
return &Store{
redis: redis,
cache: &cache.Codec{
Redis: redis,
Marshal: func(v interface{}) ([]byte, error) {
return msgpack.Marshal(v)
},
Unmarshal: func(b []byte, v interface{}) error {
return msgpack.Unmarshal(b, v)
},
},
}
}
// Set writes the given interface to the key as msgpack
func (s *Store) Set(key string, i interface{}) error {
return s.cache.Set(&cache.Item{Key: key, Object: i})
}
// Get reads at the key into the interface from msgpack
func (s *Store) Get(key string, i interface{}) error {
return s.cache.Get(key, i)
}
// Delete removes the record at the key
func (s *Store) Delete(key string) error {
return s.cache.Delete(key)
}
// Load installs this store as a bot.Plugin
func (s *Store) Load(r *bot.Robot) { r.Brain.SetStore(s) }
// Unload disconnects from Redis
func (s *Store) Unload(r *bot.Robot) { s.redis.Close() }