64 lines
1.1 KiB
Go
64 lines
1.1 KiB
Go
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package cache
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import (
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"encoding/json"
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"github.com/bradfitz/gomemcache/memcache"
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"time"
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)
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type MemcacheSettings struct {
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Servers []string
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}
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type MemcacheCache struct {
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backend *memcache.Client
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}
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func NewMemcacheCache(s MemcacheSettings) (CacheInterface, error) {
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c := memcache.New(s.Servers...)
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return &MemcacheCache{
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backend: c,
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}, nil
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}
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func (mc *MemcacheCache) Has(key string) bool {
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_, err := mc.backend.Get(key)
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return err != nil
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}
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func (mc *MemcacheCache) Get(key string) ([]byte, error) {
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item, err := mc.backend.Get(key)
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if err != nil {
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return nil, err
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}
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return item.Value, nil
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}
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func (mc *MemcacheCache) Set(key string, val interface{}, ttl time.Duration) error {
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var v []byte
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if b, ok := val.([]byte); ok {
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v = b
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} else if s, ok := val.(string); ok {
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b = []byte(s)
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} else {
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b, err := json.Marshal(val)
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if err != nil {
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return err
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}
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v = b
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}
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return mc.backend.Set(&memcache.Item{Key: key, Value: v, Expiration: int32(ttl.Seconds())})
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}
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func (mc *MemcacheCache) Del(key string) error {
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return mc.backend.Delete(key)
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}
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