81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
// Copyright 2013 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package leveldb
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import (
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"code.google.com/p/goprotobuf/proto"
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"github.com/prometheus/prometheus/storage/raw"
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"github.com/prometheus/prometheus/storage/raw/leveldb"
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dto "github.com/prometheus/prometheus/model/generated"
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)
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var existenceValue = new(dto.MembershipIndexValue)
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type LevelDBMembershipIndex struct {
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persistence *leveldb.LevelDBPersistence
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}
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func (l *LevelDBMembershipIndex) Close() {
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l.persistence.Close()
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}
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func (l *LevelDBMembershipIndex) Has(k proto.Message) (bool, error) {
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return l.persistence.Has(k)
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}
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func (l *LevelDBMembershipIndex) Drop(k proto.Message) error {
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return l.persistence.Drop(k)
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}
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func (l *LevelDBMembershipIndex) Put(k proto.Message) error {
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return l.persistence.Put(k, existenceValue)
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}
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type LevelDBIndexOptions struct {
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leveldb.LevelDBOptions
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}
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func NewLevelDBMembershipIndex(o LevelDBIndexOptions) (i *LevelDBMembershipIndex, err error) {
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leveldbPersistence, err := leveldb.NewLevelDBPersistence(o.LevelDBOptions)
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if err != nil {
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return nil, err
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}
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return &LevelDBMembershipIndex{
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persistence: leveldbPersistence,
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}, nil
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}
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func (l *LevelDBMembershipIndex) Commit(batch raw.Batch) error {
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return l.persistence.Commit(batch)
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}
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// CompactKeyspace compacts the entire database's keyspace.
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//
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// Beware that it would probably be imprudent to run this on a live user-facing
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// server due to latency implications.
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func (l *LevelDBMembershipIndex) Prune() {
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l.persistence.Prune()
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}
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func (l *LevelDBMembershipIndex) Size() (uint64, error) {
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return l.persistence.Size()
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}
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func (l *LevelDBMembershipIndex) State() *raw.DatabaseState {
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return l.persistence.State()
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}
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