62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
/*
|
|
* 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 replication
|
|
|
|
import (
|
|
"encoding/xml"
|
|
)
|
|
|
|
// And - a tag to combine a prefix and multiple tags for replication configuration rule.
|
|
type And struct {
|
|
XMLName xml.Name `xml:"And" json:"And"`
|
|
Prefix string `xml:"Prefix,omitempty" json:"Prefix,omitempty"`
|
|
Tags []Tag `xml:"Tag,omitempty" json:"Tag,omitempty"`
|
|
}
|
|
|
|
var errDuplicateTagKey = Errorf("Duplicate Tag Keys are not allowed")
|
|
|
|
// isEmpty returns true if Tags field is null
|
|
func (a And) isEmpty() bool {
|
|
return len(a.Tags) == 0 && a.Prefix == ""
|
|
}
|
|
|
|
// Validate - validates the And field
|
|
func (a And) Validate() error {
|
|
if a.ContainsDuplicateTag() {
|
|
return errDuplicateTagKey
|
|
}
|
|
for _, t := range a.Tags {
|
|
if err := t.Validate(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// ContainsDuplicateTag - returns true if duplicate keys are present in And
|
|
func (a And) ContainsDuplicateTag() bool {
|
|
x := make(map[string]struct{}, len(a.Tags))
|
|
|
|
for _, t := range a.Tags {
|
|
if _, has := x[t.Key]; has {
|
|
return true
|
|
}
|
|
x[t.Key] = struct{}{}
|
|
}
|
|
|
|
return false
|
|
}
|