xl/fs: Split object layer into interface. (#1415)

xl-v1-metadata.go

@@ -1,61 +0,0 @@
-/*
- * Minio Cloud Storage, (C) 2016 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 main
-
-import (
-	"encoding/json"
-	"io"
-	"time"
-)
-
-// A xlMetaV1 represents a metadata header mapping keys to sets of values.
-type xlMetaV1 struct {
-	Version string `json:"version"`
-	Stat    struct {
-		Size    int64     `json:"size"`
-		ModTime time.Time `json:"modTime"`
-		Version int64     `json:"version"`
-	} `json:"stat"`
-	Erasure struct {
-		DataBlocks   int   `json:"data"`
-		ParityBlocks int   `json:"parity"`
-		BlockSize    int64 `json:"blockSize"`
-	}
-	Minio struct {
-		Release string `json:"release"`
-	} `json:"minio"`
-}
-
-// Write writes a metadata in wire format.
-func (m xlMetaV1) Write(writer io.Writer) error {
-	metadataBytes, err := json.Marshal(m)
-	if err != nil {
-		return err
-	}
-	_, err = writer.Write(metadataBytes)
-	return err
-}
-
-// xlMetaV1Decode - file metadata decode.
-func xlMetaV1Decode(reader io.Reader) (metadata xlMetaV1, err error) {
-	decoder := json.NewDecoder(reader)
-	// Unmarshalling failed, file possibly corrupted.
-	if err = decoder.Decode(&metadata); err != nil {
-		return xlMetaV1{}, err
-	}
-	return metadata, nil
-}