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minio/pkg/drivers/file/file_common.go

89 lines
2.0 KiB

/*
* 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 file
import (
"bufio"
"bytes"
"os"
"strings"
"sync"
"github.com/minio-io/minio/pkg/drivers"
)
// fileDriver - file local variables
type fileDriver struct {
root string
lock *sync.Mutex
}
// fileMetadata - carries metadata about object
type fileMetadata struct {
Md5sum []byte
ContentType string
}
func appendUniq(slice []string, i string) []string {
for _, ele := range slice {
if ele == i {
return slice
}
}
return append(slice, i)
}
type bucketDir struct {
files map[string]os.FileInfo
root string
}
func (p *bucketDir) getAllFiles(object string, fl os.FileInfo, err error) error {
if err != nil {
return err
}
if fl.Mode().IsRegular() {
if strings.HasSuffix(object, "$metadata") {
return nil
}
_p := strings.Split(object, p.root+"/")
if len(_p) > 1 {
p.files[_p[1]] = fl
}
}
return nil
}
func delimiter(object, delimiter string) string {
readBuffer := bytes.NewBufferString(object)
reader := bufio.NewReader(readBuffer)
stringReader := strings.NewReader(delimiter)
delimited, _ := stringReader.ReadByte()
delimitedStr, _ := reader.ReadString(delimited)
return delimitedStr
}
type byObjectKey []drivers.ObjectMetadata
// Len
func (b byObjectKey) Len() int { return len(b) }
// Swap
func (b byObjectKey) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
// Less
func (b byObjectKey) Less(i, j int) bool { return b[i].Key < b[j].Key }