mirror of
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4915433bd2
- Implement a new xl.json 2.0.0 format to support, this moves the entire marshaling logic to POSIX layer, top layer always consumes a common FileInfo construct which simplifies the metadata reads. - Implement list object versions - Migrate to siphash from crchash for new deployments for object placements. Fixes #2111
82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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jsoniter "github.com/json-iterator/go"
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)
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func getFileInfoVersions(xlMetaBuf []byte, volume, path string) (FileInfoVersions, error) {
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if isXL2V1Format(xlMetaBuf) {
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var xlMeta xlMetaV2
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if err := xlMeta.Load(xlMetaBuf); err != nil {
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return FileInfoVersions{}, err
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}
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versions, deletedVersions, latestModTime, err := xlMeta.ListVersions(volume, path)
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if err != nil {
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return FileInfoVersions{}, err
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}
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return FileInfoVersions{
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Volume: volume,
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Name: path,
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Versions: versions,
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Deleted: deletedVersions,
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LatestModTime: latestModTime,
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}, nil
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}
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xlMeta := &xlMetaV1Object{}
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var json = jsoniter.ConfigCompatibleWithStandardLibrary
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if err := json.Unmarshal(xlMetaBuf, xlMeta); err != nil {
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return FileInfoVersions{}, errFileCorrupt
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}
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fi, err := xlMeta.ToFileInfo(volume, path)
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if err != nil {
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return FileInfoVersions{}, err
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}
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fi.IsLatest = true // No versions so current version is latest.
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return FileInfoVersions{
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Volume: volume,
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Name: path,
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Versions: []FileInfo{fi},
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LatestModTime: fi.ModTime,
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}, nil
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}
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func getFileInfo(xlMetaBuf []byte, volume, path, versionID string) (FileInfo, error) {
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if isXL2V1Format(xlMetaBuf) {
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var xlMeta xlMetaV2
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if err := xlMeta.Load(xlMetaBuf); err != nil {
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return FileInfo{}, err
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}
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return xlMeta.ToFileInfo(volume, path, versionID)
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}
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xlMeta := &xlMetaV1Object{}
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var json = jsoniter.ConfigCompatibleWithStandardLibrary
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if err := json.Unmarshal(xlMetaBuf, xlMeta); err != nil {
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return FileInfo{}, errFileCorrupt
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}
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fi, err := xlMeta.ToFileInfo(volume, path)
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if err == errFileNotFound && versionID != "" {
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return fi, errFileVersionNotFound
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}
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return fi, err
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}
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