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minio/cmd/erasure-demo/erasure.go

62 lines
1.6 KiB

package main
import (
"bytes"
"encoding/json"
"io"
"os"
"path"
"github.com/minio-io/minio/pkgs/storage"
es "github.com/minio-io/minio/pkgs/storage/encodedstorage"
)
func erasureGetList(config inputConfig) (io.Reader, error) {
var objectStorage storage.ObjectStorage
rootDir := path.Join(config.rootDir, config.storageDriver)
objectStorage, err := es.NewStorage(rootDir, config.k, config.m, config.blockSize)
if err != nil {
return nil, err
}
objectDescList, err := objectStorage.List()
if err != nil {
return nil, err
}
var objectDescListBytes []byte
if objectDescListBytes, err = json.Marshal(objectDescList); err != nil {
return nil, err
}
objectDescListBuffer := bytes.NewBuffer(objectDescListBytes)
return objectDescListBuffer, nil
}
func erasureGet(config inputConfig, objectPath string) (io.Reader, error) {
var objectStorage storage.ObjectStorage
rootDir := path.Join(config.rootDir, config.storageDriver)
objectStorage, err := es.NewStorage(rootDir, config.k, config.m, config.blockSize)
if err != nil {
return nil, err
}
object, err := objectStorage.Get(objectPath)
if err != nil {
return nil, err
}
return object, nil
}
func erasurePut(config inputConfig, objectPath string, reader io.Reader) error {
var err error
rootDir := path.Join(config.rootDir, config.storageDriver)
if err := os.MkdirAll(rootDir, 0700); err != nil {
return err
}
var objectStorage storage.ObjectStorage
if objectStorage, err = es.NewStorage(rootDir, config.k, config.m, config.blockSize); err != nil {
return err
}
if err = objectStorage.Put(objectPath, reader); err != nil {
return err
}
return nil
}