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92 lines
2.4 KiB
92 lines
2.4 KiB
// Copyright 2013 Beego Authors
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// Copyright 2014 The Macaron Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package cache
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import (
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"strings"
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"github.com/Unknwon/com"
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"github.com/bradfitz/gomemcache/memcache"
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"github.com/go-macaron/cache"
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)
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// MemcacheCacher represents a memcache cache adapter implementation.
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type MemcacheCacher struct {
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c *memcache.Client
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}
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func NewItem(key string, data []byte, expire int32) *memcache.Item {
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return &memcache.Item{
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Key: key,
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Value: data,
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Expiration: expire,
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}
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}
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// Put puts value into cache with key and expire time.
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// If expired is 0, it lives forever.
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func (c *MemcacheCacher) Put(key string, val interface{}, expire int64) error {
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return c.c.Set(NewItem(key, []byte(com.ToStr(val)), int32(expire)))
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}
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// Get gets cached value by given key.
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func (c *MemcacheCacher) Get(key string) interface{} {
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item, err := c.c.Get(key)
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if err != nil {
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return nil
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}
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return string(item.Value)
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}
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// Delete deletes cached value by given key.
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func (c *MemcacheCacher) Delete(key string) error {
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return c.c.Delete(key)
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}
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// Incr increases cached int-type value by given key as a counter.
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func (c *MemcacheCacher) Incr(key string) error {
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_, err := c.c.Increment(key, 1)
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return err
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}
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// Decr decreases cached int-type value by given key as a counter.
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func (c *MemcacheCacher) Decr(key string) error {
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_, err := c.c.Decrement(key, 1)
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return err
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}
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// IsExist returns true if cached value exists.
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func (c *MemcacheCacher) IsExist(key string) bool {
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_, err := c.c.Get(key)
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return err == nil
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}
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// Flush deletes all cached data.
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func (c *MemcacheCacher) Flush() error {
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return c.c.FlushAll()
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}
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// StartAndGC starts GC routine based on config string settings.
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// AdapterConfig: 127.0.0.1:9090;127.0.0.1:9091
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func (c *MemcacheCacher) StartAndGC(opt cache.Options) error {
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c.c = memcache.New(strings.Split(opt.AdapterConfig, ";")...)
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return nil
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}
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func init() {
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cache.Register("memcache", &MemcacheCacher{})
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}
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