mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-28 23:19:41 -08:00
63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
// Copyright 2013 Prometheus Team
|
|
// 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 leveldb
|
|
|
|
import (
|
|
"github.com/prometheus/prometheus/coding"
|
|
dto "github.com/prometheus/prometheus/model/generated"
|
|
"github.com/prometheus/prometheus/storage/raw/leveldb"
|
|
)
|
|
|
|
var (
|
|
existenceValue = coding.NewProtocolBufferEncoder(&dto.MembershipIndexValue{})
|
|
)
|
|
|
|
type LevelDBMembershipIndex struct {
|
|
persistence *leveldb.LevelDBPersistence
|
|
}
|
|
|
|
func (l *LevelDBMembershipIndex) Close() error {
|
|
return l.persistence.Close()
|
|
}
|
|
|
|
func (l *LevelDBMembershipIndex) Has(key coding.Encoder) (bool, error) {
|
|
return l.persistence.Has(key)
|
|
}
|
|
|
|
func (l *LevelDBMembershipIndex) Drop(key coding.Encoder) error {
|
|
return l.persistence.Drop(key)
|
|
}
|
|
|
|
func (l *LevelDBMembershipIndex) Put(key coding.Encoder) error {
|
|
return l.persistence.Put(key, existenceValue)
|
|
}
|
|
|
|
func NewLevelDBMembershipIndex(storageRoot string, cacheCapacity, bitsPerBloomFilterEncoded int) (i *LevelDBMembershipIndex, err error) {
|
|
|
|
leveldbPersistence, err := leveldb.NewLevelDBPersistence(storageRoot, cacheCapacity, bitsPerBloomFilterEncoded)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
i = &LevelDBMembershipIndex{
|
|
persistence: leveldbPersistence,
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func (l *LevelDBMembershipIndex) Commit(batch leveldb.Batch) error {
|
|
return l.persistence.Commit(batch)
|
|
}
|