2018-03-15 21:03:41 +01:00
|
|
|
/*
|
2019-04-09 20:39:42 +02:00
|
|
|
* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
|
2018-03-15 21:03:41 +01:00
|
|
|
*
|
|
|
|
* 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 event
|
|
|
|
|
|
|
|
// TargetIDSet - Set representation of TargetIDs.
|
|
|
|
type TargetIDSet map[TargetID]struct{}
|
|
|
|
|
2020-04-27 15:25:05 +02:00
|
|
|
// IsEmpty returns true if the set is empty.
|
|
|
|
func (set TargetIDSet) IsEmpty() bool {
|
|
|
|
return len(set) != 0
|
2018-03-15 21:03:41 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
// Clone - returns copy of this set.
|
|
|
|
func (set TargetIDSet) Clone() TargetIDSet {
|
|
|
|
setCopy := NewTargetIDSet()
|
|
|
|
for k, v := range set {
|
|
|
|
setCopy[k] = v
|
|
|
|
}
|
|
|
|
return setCopy
|
|
|
|
}
|
|
|
|
|
|
|
|
// add - adds TargetID to the set.
|
|
|
|
func (set TargetIDSet) add(targetID TargetID) {
|
|
|
|
set[targetID] = struct{}{}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Union - returns union with given set as new set.
|
|
|
|
func (set TargetIDSet) Union(sset TargetIDSet) TargetIDSet {
|
|
|
|
nset := set.Clone()
|
|
|
|
|
|
|
|
for k := range sset {
|
|
|
|
nset.add(k)
|
|
|
|
}
|
|
|
|
|
|
|
|
return nset
|
|
|
|
}
|
|
|
|
|
|
|
|
// Difference - returns diffrence with given set as new set.
|
|
|
|
func (set TargetIDSet) Difference(sset TargetIDSet) TargetIDSet {
|
|
|
|
nset := NewTargetIDSet()
|
|
|
|
for k := range set {
|
|
|
|
if _, ok := sset[k]; !ok {
|
|
|
|
nset.add(k)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return nset
|
|
|
|
}
|
|
|
|
|
|
|
|
// NewTargetIDSet - creates new TargetID set with given TargetIDs.
|
|
|
|
func NewTargetIDSet(targetIDs ...TargetID) TargetIDSet {
|
|
|
|
set := make(TargetIDSet)
|
|
|
|
for _, targetID := range targetIDs {
|
|
|
|
set.add(targetID)
|
|
|
|
}
|
|
|
|
return set
|
|
|
|
}
|