minio/pkg/bucket/lifecycle/prefix.go

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/*
* MinIO Cloud Storage, (C) 2020 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"
)
// Prefix holds the prefix xml tag in <Rule> and <Filter>
type Prefix struct {
string
set bool
}
// UnmarshalXML - decodes XML data.
func (p *Prefix) UnmarshalXML(d *xml.Decoder, start xml.StartElement) (err error) {
var s string
if err = d.DecodeElement(&s, &start); err != nil {
return err
}
*p = Prefix{string: s, set: true}
return nil
}
// MarshalXML - decodes XML data.
func (p Prefix) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
if !p.set {
return nil
}
return e.EncodeElement(p.string, startElement)
}
// String returns the prefix string
func (p Prefix) String() string {
return p.string
}