erasure encoded demo

cmd/erasure-demo/erasure.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"errors"
+	"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) {
+	// do nothing
+	return nil, errors.New("Not Implemented")
+}
+
+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, 10, 6, 1024*1024)
+	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, 10, 6, 1024*1024); err != nil {
+		return err
+	}
+	if err = objectStorage.Put(objectPath, reader); err != nil {
+		return err
+	}
+	return nil
+}

cmd/erasure-demo/get.go

@@ -29,6 +29,12 @@ func get(c *cli.Context) {
 				}
 			}
 		}
+	case "erasure":
+		{
+			if objectReader, err = erasureGet(config, objectName); err != nil {
+				log.Fatal(err)
+			}
+		}
 	default:
 		{
 			log.Fatal("Unknown driver")

cmd/erasure-demo/put.go

@@ -29,7 +29,15 @@ func put(c *cli.Context) {
 	switch config.storageDriver {
 	case "fs":
 		{
-			fsPut(config, c.Args().Get(0), inputFile)
+			if err := fsPut(config, c.Args().Get(0), inputFile); err != nil {
+				log.Fatal(err)
+			}
+		}
+	case "erasure":
+		{
+			if err := erasurePut(config, c.Args().Get(0), inputFile); err != nil {
+				log.Fatal(err)
+			}
 		}
 	default:
 		{