common_utils/chainedCache.go

package common_utils

import (
	"context"
	"github.com/allegro/bigcache"
	"github.com/eko/gocache/lib/v4/cache"
	"github.com/eko/gocache/lib/v4/store"
	bigcache_store "github.com/eko/gocache/store/bigcache/v4"
	redis_store "github.com/eko/gocache/store/redis/v4"
	"github.com/redis/go-redis/v9"
	"log"
	"time"
)

type ChainedCache struct {
	LoadableChinCache *cache.LoadableCache[any]
}

func NewChainedCache(redisAddr string) *ChainedCache {

	bigCacheClient, _ := bigcache.NewBigCache(bigcache.DefaultConfig(2 * time.Minute))
	bigCacheStore := bigcache_store.NewBigcache(bigCacheClient)
	redisStore := redis_store.NewRedis(redis.NewClient(&redis.Options{
		Addr: redisAddr,
	}), store.WithExpiration(2*time.Minute))
	cacheManager := cache.NewChain[any](
		cache.New[any](bigCacheStore),
		cache.New[any](redisStore),
	)
	loadFunction := func(ctx context.Context, key any) (any, error) {
		// ... retrieve value from available source
		log.Printf("缓存击穿!!!,key=%s", key.(string))
		return nil, nil
	}
	cacheManagerWithLoad := cache.NewLoadable[any](
		loadFunction,
		cacheManager,
	)

	return &ChainedCache{
		LoadableChinCache: cacheManagerWithLoad,
	}
}