Add everything back into one project hood, still missing iodine

pkg/storage/donut/donut_internal_interfaces.go

@@ -0,0 +1,69 @@
+/*
+ * Minimalist Object Storage, (C) 2015 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package donut
+
+import (
+	"io"
+	"os"
+)
+
+// Encoder interface
+type Encoder interface {
+	GetEncodedBlockLen(dataLength int) (int, error)
+	Encode(data []byte) (encodedData [][]byte, err error)
+	Decode(encodedData [][]byte, dataLength int) (data []byte, err error)
+}
+
+// Bucket interface
+type Bucket interface {
+	ListObjects() (map[string]Object, error)
+
+	GetObject(object string) (io.ReadCloser, int64, error)
+	PutObject(object string, contents io.Reader, expectedMD5Sum string, metadata map[string]string) error
+}
+
+// Object interface
+type Object interface {
+	GetObjectMetadata() (map[string]string, error)
+	GetDonutObjectMetadata() (map[string]string, error)
+}
+
+// Node interface
+type Node interface {
+	ListDisks() (map[string]Disk, error)
+	AttachDisk(disk Disk) error
+	DetachDisk(disk Disk) error
+
+	GetNodeName() string
+	SaveConfig() error
+	LoadConfig() error
+}
+
+// Disk interface
+type Disk interface {
+	MakeDir(dirname string) error
+
+	ListDir(dirname string) ([]os.FileInfo, error)
+	ListFiles(dirname string) ([]os.FileInfo, error)
+
+	MakeFile(path string) (*os.File, error)
+	OpenFile(path string) (*os.File, error)
+
+	GetPath() string
+	GetOrder() int
+	GetFSInfo() map[string]string
+}