80623f4a8a
The moss KV store adapter's Get() implementation was incorrectly
transforming a 0-length val (e.g., []byte{}) into a nil val.
83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
// Copyright (c) 2016 Couchbase, Inc.
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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
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// 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,
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// software distributed under the License is distributed on an "AS
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// IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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// express or implied. See the License for the specific language
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// governing permissions and limitations under the License.
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package moss
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import (
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"github.com/couchbase/moss"
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"github.com/blevesearch/bleve/index/store"
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)
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type Reader struct {
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store *Store
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ss moss.Snapshot
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}
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func (r *Reader) Get(k []byte) (v []byte, err error) {
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v, err = r.ss.Get(k, moss.ReadOptions{})
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if err != nil {
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return nil, err
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}
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if v != nil {
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return append(make([]byte, 0, len(v)), v...), nil
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}
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return nil, nil
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}
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func (r *Reader) MultiGet(keys [][]byte) ([][]byte, error) {
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return store.MultiGet(r, keys)
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}
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func (r *Reader) PrefixIterator(k []byte) store.KVIterator {
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iter, err := r.ss.StartIterator(k, nil, moss.IteratorOptions{})
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if err != nil {
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return nil
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}
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rv := &Iterator{
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store: r.store,
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ss: r.ss,
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iter: iter,
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prefix: k,
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start: k,
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end: nil,
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}
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rv.checkDone()
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return rv
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}
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func (r *Reader) RangeIterator(start, end []byte) store.KVIterator {
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iter, err := r.ss.StartIterator(start, end, moss.IteratorOptions{})
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if err != nil {
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return nil
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}
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rv := &Iterator{
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store: r.store,
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ss: r.ss,
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iter: iter,
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prefix: nil,
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start: start,
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end: end,
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}
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rv.checkDone()
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return rv
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}
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func (r *Reader) Close() error {
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return r.ss.Close()
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}
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