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103 lines
2.5 KiB
103 lines
2.5 KiB
package redis
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import (
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"encoding/json"
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"github.com/bitly/go-simplejson"
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"time"
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)
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const (
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SerializerJson = "json"
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SerializerSimpleJson = "simplejson"
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SerializerString = "string"
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)
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type JsonGttFunc func() interface{}
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type SimpleJsonGttFunc func() *simplejson.Json
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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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SimpleJsonGetter SimpleJsonGttFunc // 缓存不存在的操作 SimpleJson
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Serializer string // 序列化方式
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}
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func NewSimpleCache(operation *StringOperation, expire time.Duration, serializer string) *SimpleCache {
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return &SimpleCache{Operation: operation, Expire: expire, Serializer: serializer}
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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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} else if c.Serializer == SerializerSimpleJson {
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f := func() string {
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obj := c.SimpleJsonGetter()
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encode, err := obj.Encode()
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if err != nil {
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return ""
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}
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return string(encode)
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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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// GetCacheSimpleJson 获取缓存配合SimpleJson插件
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func (c *SimpleCache) GetCacheSimpleJson(key string) (js *simplejson.Json) {
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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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js, _ = simplejson.NewJson([]byte(ret))
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} else if c.Serializer == SerializerSimpleJson {
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f := func() string {
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obj := c.SimpleJsonGetter()
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encode, err := obj.Encode()
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if err != nil {
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return ""
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}
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return string(encode)
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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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js, _ = simplejson.NewJson([]byte(ret))
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}
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return
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}
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