s3browser-backend/internal/cache/ttl_cache.go

package cache

import (
	"context"
	"time"

	"github.com/graph-gophers/dataloader"
	gocache "github.com/patrickmn/go-cache"
)

type TTLCache struct {
	c *gocache.Cache
}

// Create new ttl cache
func NewTTLCache(ttl, cleanupInterval time.Duration) *TTLCache {
	return &TTLCache{
		c: gocache.New(ttl, cleanupInterval),
	}
}

func (c *TTLCache) Get(_ context.Context, key dataloader.Key) (dataloader.Thunk, bool) {
	v, ok := c.c.Get(key.String())
	if ok {
		return v.(dataloader.Thunk), ok
	}
	return nil, ok
}

func (c *TTLCache) Set(_ context.Context, key dataloader.Key, value dataloader.Thunk) {
	c.c.Set(key.String(), value, 0)
}

func (c *TTLCache) Delete(_ context.Context, key dataloader.Key) bool {
	if _, found := c.c.Get(key.String()); found {
		c.c.Delete(key.String())
		return true
	}
	return false
}

func (c *TTLCache) Clear() {
	c.c.Flush()
}