replace zxq.co/ripple/hanayo

vendor/github.com/gin-gonic/contrib/cache/memcached.go

@@ -0,0 +1,87 @@
+package cache
+
+import (
+	"github.com/bradfitz/gomemcache/memcache"
+	"time"
+)
+
+type MemcachedStore struct {
+	*memcache.Client
+	defaultExpiration time.Duration
+}
+
+func NewMemcachedStore(hostList []string, defaultExpiration time.Duration) *MemcachedStore {
+	return &MemcachedStore{memcache.New(hostList...), defaultExpiration}
+}
+
+func (c *MemcachedStore) Set(key string, value interface{}, expires time.Duration) error {
+	return c.invoke((*memcache.Client).Set, key, value, expires)
+}
+
+func (c *MemcachedStore) Add(key string, value interface{}, expires time.Duration) error {
+	return c.invoke((*memcache.Client).Add, key, value, expires)
+}
+
+func (c *MemcachedStore) Replace(key string, value interface{}, expires time.Duration) error {
+	return c.invoke((*memcache.Client).Replace, key, value, expires)
+}
+
+func (c *MemcachedStore) Get(key string, value interface{}) error {
+	item, err := c.Client.Get(key)
+	if err != nil {
+		return convertMemcacheError(err)
+	}
+	return deserialize(item.Value, value)
+}
+
+func (c *MemcachedStore) Delete(key string) error {
+	return convertMemcacheError(c.Client.Delete(key))
+}
+
+func (c *MemcachedStore) Increment(key string, delta uint64) (uint64, error) {
+	newValue, err := c.Client.Increment(key, delta)
+	return newValue, convertMemcacheError(err)
+}
+
+func (c *MemcachedStore) Decrement(key string, delta uint64) (uint64, error) {
+	newValue, err := c.Client.Decrement(key, delta)
+	return newValue, convertMemcacheError(err)
+}
+
+func (c *MemcachedStore) Flush() error {
+	return ErrNotSupport
+}
+
+func (c *MemcachedStore) invoke(storeFn func(*memcache.Client, *memcache.Item) error,
+	key string, value interface{}, expire time.Duration) error {
+
+	switch expire {
+	case DEFAULT:
+		expire = c.defaultExpiration
+	case FOREVER:
+		expire = time.Duration(0)
+	}
+
+	b, err := serialize(value)
+	if err != nil {
+		return err
+	}
+	return convertMemcacheError(storeFn(c.Client, &memcache.Item{
+		Key:        key,
+		Value:      b,
+		Expiration: int32(expire / time.Second),
+	}))
+}
+
+func convertMemcacheError(err error) error {
+	switch err {
+	case nil:
+		return nil
+	case memcache.ErrCacheMiss:
+		return ErrCacheMiss
+	case memcache.ErrNotStored:
+		return ErrNotStored
+	}
+
+	return err
+}