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minio/pkg/storage/donut/donut_object.go

70 lines
2.1 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 donut
import (
"encoding/json"
"io/ioutil"
"path/filepath"
"github.com/minio/minio/pkg/iodine"
)
// object internal struct
type object struct {
name string
objectPath string
objectMetadata map[string]string
donutObjectMetadata map[string]string
}
// NewObject - instantiate a new object
func NewObject(objectName, p string) (Object, error) {
if objectName == "" {
return nil, iodine.New(InvalidArgument{}, nil)
}
o := object{}
o.name = objectName
o.objectPath = filepath.Join(p, objectName)
return o, nil
}
func (o object) GetObjectMetadata() (map[string]string, error) {
objectMetadata := make(map[string]string)
objectMetadataBytes, err := ioutil.ReadFile(filepath.Join(o.objectPath, objectMetadataConfig))
if err != nil {
return nil, iodine.New(err, nil)
}
if err := json.Unmarshal(objectMetadataBytes, &objectMetadata); err != nil {
return nil, iodine.New(err, nil)
}
o.objectMetadata = objectMetadata
return o.objectMetadata, nil
}
func (o object) GetDonutObjectMetadata() (map[string]string, error) {
donutObjectMetadata := make(map[string]string)
donutObjectMetadataBytes, err := ioutil.ReadFile(filepath.Join(o.objectPath, donutObjectMetadataConfig))
if err != nil {
return nil, iodine.New(err, nil)
}
if err := json.Unmarshal(donutObjectMetadataBytes, &donutObjectMetadata); err != nil {
return nil, iodine.New(err, nil)
}
o.donutObjectMetadata = donutObjectMetadata
return o.donutObjectMetadata, nil
}