reflector.go/store/cloudfront_rw.go
Niko Storni b4913ecedf cleanup
2021-07-24 01:03:51 +02:00

63 lines
1.6 KiB
Go

package store
import (
"time"
"github.com/lbryio/reflector.go/shared"
"github.com/lbryio/lbry.go/v2/stream"
)
// CloudFrontRWStore combines a Cloudfront and an S3 store. Reads go to Cloudfront/Wasabi, writes go to S3.
type CloudFrontRWStore struct {
cf *ITTTStore
s3 *S3Store
}
// NewCloudFrontRWStore returns an initialized CloudFrontRWStore store pointer.
// NOTE: It panics if either argument is nil.
func NewCloudFrontRWStore(cf *ITTTStore, s3 *S3Store) *CloudFrontRWStore {
if cf == nil || s3 == nil {
panic("both stores must be set")
}
return &CloudFrontRWStore{cf: cf, s3: s3}
}
const nameCloudFrontRW = "cloudfront_rw"
// Name is the cache type name
func (c *CloudFrontRWStore) Name() string { return nameCloudFrontRW }
// Has checks if the hash is in the store.
func (c *CloudFrontRWStore) Has(hash string) (bool, error) {
return c.cf.Has(hash)
}
// Get gets the blob from Cloudfront.
func (c *CloudFrontRWStore) Get(hash string) (stream.Blob, shared.BlobTrace, error) {
start := time.Now()
blob, trace, err := c.cf.Get(hash)
return blob, trace.Stack(time.Since(start), c.Name()), err
}
// Put stores the blob on S3
func (c *CloudFrontRWStore) Put(hash string, blob stream.Blob) error {
return c.s3.Put(hash, blob)
}
// PutSD stores the sd blob on S3
func (c *CloudFrontRWStore) PutSD(hash string, blob stream.Blob) error {
return c.s3.PutSD(hash, blob)
}
// Delete deletes the blob from S3
func (c *CloudFrontRWStore) Delete(hash string) error {
return c.s3.Delete(hash)
}
// Shutdown shuts down the store gracefully
func (c *CloudFrontRWStore) Shutdown() {
c.s3.Shutdown()
c.cf.Shutdown()
}