minio/pkg/bucket/lifecycle/noncurrentversion.go
Harshavardhana 4915433bd2
Support bucket versioning (#9377)
- 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
2020-06-12 20:04:01 -07:00

67 lines
2.2 KiB
Go

/*
* MinIO Cloud Storage, (C) 2019 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 lifecycle
import (
"encoding/xml"
)
// NoncurrentVersionExpiration - an action for lifecycle configuration rule.
type NoncurrentVersionExpiration struct {
XMLName xml.Name `xml:"NoncurrentVersionExpiration"`
NoncurrentDays ExpirationDays `xml:"NoncurrentDays,omitempty"`
}
// NoncurrentVersionTransition - an action for lifecycle configuration rule.
type NoncurrentVersionTransition struct {
NoncurrentDays ExpirationDays `xml:"NoncurrentDays"`
StorageClass string `xml:"StorageClass"`
}
var (
errNoncurrentVersionTransitionUnsupported = Errorf("Specifying <NoncurrentVersionTransition></NoncurrentVersionTransition> is not supported")
)
// MarshalXML if non-current days not set returns empty tags
func (n *NoncurrentVersionExpiration) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if n.NoncurrentDays == ExpirationDays(0) {
return nil
}
return e.EncodeElement(&n, start)
}
// IsDaysNull returns true if days field is null
func (n NoncurrentVersionExpiration) IsDaysNull() bool {
return n.NoncurrentDays == ExpirationDays(0)
}
// UnmarshalXML is extended to indicate lack of support for
// NoncurrentVersionTransition xml tag in object lifecycle
// configuration
func (n NoncurrentVersionTransition) UnmarshalXML(d *xml.Decoder, startElement xml.StartElement) error {
return errNoncurrentVersionTransitionUnsupported
}
// MarshalXML is extended to leave out
// <NoncurrentVersionTransition></NoncurrentVersionTransition> tags
func (n NoncurrentVersionTransition) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if n.NoncurrentDays == ExpirationDays(0) {
return nil
}
return e.EncodeElement(&n, start)
}