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remote_store.go
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remote_store.go
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package image
import (
"context"
"encoding/base64"
"encoding/json"
"io"
"strings"
"time"
"github.com/go-pkgz/jrpc"
)
// RPC implements remote engine and delegates all Calls to remote http server
type RPC struct {
jrpc.Client
}
// Save saves image with given id to staging.
func (r *RPC) Save(id string, img []byte) error {
_, err := r.Call("image.save_with_id", id, img)
return err
}
// ResetCleanupTimer resets cleanup timer for the image
func (r *RPC) ResetCleanupTimer(id string) error {
_, err := r.Call("image.reset_cleanup_timer", id)
return err
}
// Load image with given id
func (r *RPC) Load(id string) ([]byte, error) {
resp, err := r.Call("image.load", id)
if err != nil {
return nil, err
}
var rawImg string
if err := json.Unmarshal(*resp.Result, &rawImg); err != nil {
return nil, err
}
return io.ReadAll(base64.NewDecoder(base64.StdEncoding, strings.NewReader(rawImg)))
}
// Delete image from storage
func (r *RPC) Delete(id string) error {
_, err := r.Call("image.delete", id)
return err
}
// Commit file stored in staging location by moving it to permanent location
func (r *RPC) Commit(id string) error {
_, err := r.Call("image.commit", id)
return err
}
// Cleanup runs scan of staging and removes old files based on ttl
func (r *RPC) Cleanup(_ context.Context, ttl time.Duration) error {
_, err := r.Call("image.cleanup", ttl)
return err
}
// Info returns meta information about storage
func (r *RPC) Info() (StoreInfo, error) {
resp, err := r.Call("image.info")
if err != nil {
return StoreInfo{}, err
}
info := StoreInfo{}
if e := json.Unmarshal(*resp.Result, &info); e != nil {
return StoreInfo{}, e
}
return info, err
}