a9c07acbfa
refactor to share code in emulated batch refactor to share code in emulated merge refactor index kvstore benchmarks to share more code refactor index kvstore benchmarks to be more repeatable
113 lines
2.2 KiB
Go
113 lines
2.2 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package boltdb
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import (
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"fmt"
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"sync"
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"github.com/blevesearch/bleve/index/store"
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"github.com/blevesearch/bleve/registry"
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"github.com/boltdb/bolt"
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)
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const Name = "boltdb"
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type Store struct {
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path string
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bucket string
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db *bolt.DB
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writer sync.Mutex
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mo store.MergeOperator
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}
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func New(path string, bucket string) *Store {
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rv := Store{
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path: path,
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bucket: bucket,
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}
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return &rv
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}
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func (bs *Store) Open() error {
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var err error
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bs.db, err = bolt.Open(bs.path, 0600, nil)
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if err != nil {
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return err
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}
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err = bs.db.Update(func(tx *bolt.Tx) error {
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_, err := tx.CreateBucketIfNotExists([]byte(bs.bucket))
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return err
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})
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if err != nil {
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return err
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}
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return nil
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}
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func (bs *Store) SetMergeOperator(mo store.MergeOperator) {
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bs.mo = mo
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}
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func (bs *Store) Close() error {
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return bs.db.Close()
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}
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func (bs *Store) Reader() (store.KVReader, error) {
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tx, err := bs.db.Begin(false)
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if err != nil {
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return nil, err
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}
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return &Reader{
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store: bs,
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tx: tx,
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}, nil
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}
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func (bs *Store) Writer() (store.KVWriter, error) {
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bs.writer.Lock()
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tx, err := bs.db.Begin(true)
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if err != nil {
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bs.writer.Unlock()
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return nil, err
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}
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reader := &Reader{
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store: bs,
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tx: tx,
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}
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return &Writer{
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store: bs,
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tx: tx,
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reader: reader,
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}, nil
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}
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func StoreConstructor(config map[string]interface{}) (store.KVStore, error) {
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path, ok := config["path"].(string)
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if !ok {
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return nil, fmt.Errorf("must specify path")
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}
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bucket, ok := config["bucket"].(string)
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if !ok {
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bucket = "bleve"
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}
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return New(path, bucket), nil
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}
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func init() {
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registry.RegisterKVStore(Name, StoreConstructor)
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}
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