Add redis

redis.go

@@ -0,0 +1,57 @@
+package storage
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/gomodule/redigo/redis"
+)
+
+type Redis struct {
+	client redis.Conn
+}
+
+func NewRedis(addr, user, pass string) (*Redis, error) {
+	opts := []redis.DialOption{}
+	if pass != "" {
+		opts = append(opts, redis.DialPassword(pass))
+	}
+	opts = append(opts, redis.DialConnectTimeout(time.Second*10))
+	client, err := redis.Dial("tcp", addr, opts...)
+	return &Redis{
+		client: client,
+	}, err
+}
+
+func (m *Redis) String() string {
+	return fmt.Sprintf("%v", *m)
+}
+
+func (m *Redis) Close() error {
+	return m.client.Close()
+}
+
+func (m *Redis) Get(key string, ns ...string) ([]byte, error) {
+	key = resolveNamespace(append(ns, key))
+	log.Println(key)
+	resp, err := m.client.Do("GET", key)
+	if err != nil {
+		return nil, err
+	}
+	if resp == nil {
+		return nil, ErrNotFound
+	}
+	b, ok := resp.([]byte)
+	if !ok {
+		return nil, errors.New("resp not a []byte")
+	}
+	return b, nil
+}
+
+func (m *Redis) Set(key string, value []byte, ns ...string) error {
+	namespace := resolveNamespace(append(ns, key))
+	_, err := m.client.Do("SET", namespace, value)
+	return err
+}