62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
/*
|
|
* 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"`
|
|
} `json:"erasure"`
|
|
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
|
|
}
|