85 lines
2.2 KiB
Go
85 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 gouchstore
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import (
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"github.com/blevesearch/bleve/index/store"
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"github.com/mschoch/gouchstore"
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)
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type GouchstoreStore struct {
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path string
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db *gouchstore.Gouchstore
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}
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func Open(path string) (*GouchstoreStore, error) {
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rv := GouchstoreStore{
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path: path,
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}
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var err error
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rv.db, err = gouchstore.Open(path, gouchstore.OPEN_CREATE)
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if err != nil {
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return nil, err
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}
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return &rv, nil
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}
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func (gs *GouchstoreStore) Get(key []byte) ([]byte, error) {
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var docInfo gouchstore.DocumentInfo
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err := gs.db.DocumentInfoByIdNoAlloc(string(key), &docInfo)
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if err != nil && err.Error() != "document not found" {
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return nil, err
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}
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if err != nil && err.Error() == "document not found" {
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return nil, nil
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}
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var doc gouchstore.Document
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if !docInfo.Deleted {
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err := gs.db.DocumentByIdNoAlloc(string(key), &doc)
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if err != nil {
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return nil, err
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}
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return doc.Body, nil
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}
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return nil, nil
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}
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func (gs *GouchstoreStore) Set(key, val []byte) error {
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doc := gouchstore.NewDocument(string(key), val)
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docInfo := gouchstore.NewDocumentInfo(string(key))
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return gs.db.SaveDocument(doc, docInfo)
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}
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func (gs *GouchstoreStore) Delete(key []byte) error {
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doc := gouchstore.NewDocument(string(key), nil)
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docInfo := gouchstore.NewDocumentInfo(string(key))
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docInfo.Deleted = true
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return gs.db.SaveDocument(doc, docInfo)
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}
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func (gs *GouchstoreStore) Commit() error {
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return gs.db.Commit()
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}
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func (gs *GouchstoreStore) Close() error {
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return gs.db.Close()
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}
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func (gs *GouchstoreStore) Iterator(key []byte) store.KVIterator {
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rv := newGouchstoreIterator(gs)
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rv.Seek(key)
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return rv
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}
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func (gs *GouchstoreStore) NewBatch() store.KVBatch {
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return newGouchstoreBatch(gs)
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}
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