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62 lines
1.4 KiB
62 lines
1.4 KiB
package dorm
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import (
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"encoding/json"
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"time"
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)
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const (
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SerializerJson = "json"
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SerializerString = "string"
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)
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type JsonGttFunc func() interface{}
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type DBGttFunc func() string
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// SimpleCache 缓存
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type SimpleCache struct {
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Operation *StringOperation // 操作类
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Expire time.Duration // 过去时间
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DBGetter DBGttFunc // 缓存不存在的操作 DB
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JsonGetter JsonGttFunc // 缓存不存在的操作 JSON
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Serializer string // 序列化方式
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}
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// NewSimpleCache 构造函数
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func (c *RedisClient) NewSimpleCache(operation *StringOperation, expire time.Duration, serializer string) *SimpleCache {
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return &SimpleCache{
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Operation: operation, // 操作类
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Expire: expire, // 过去时间
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Serializer: serializer, // 缓存不存在的操作 DB
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}
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}
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// SetCache 设置缓存
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func (c *SimpleCache) SetCache(key string, value interface{}) {
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c.Operation.Set(key, value, WithExpire(c.Expire)).Unwrap()
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}
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// GetCache 获取缓存
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func (c *SimpleCache) GetCache(key string) (ret interface{}) {
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if c.Serializer == SerializerJson {
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f := func() string {
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obj := c.JsonGetter()
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b, err := json.Marshal(obj)
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if err != nil {
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return ""
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}
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return string(b)
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}
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ret = c.Operation.Get(key).UnwrapOrElse(f)
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c.SetCache(key, ret)
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} else if c.Serializer == SerializerString {
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f := func() string {
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return c.DBGetter()
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}
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ret = c.Operation.Get(key).UnwrapOrElse(f)
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c.SetCache(key, ret)
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}
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return
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}
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