88 lines
1.8 KiB
Go
88 lines
1.8 KiB
Go
// Copyright (c) 2016 Couchbase, Inc.
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//
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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 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 Batch struct {
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store *Store
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merge *store.EmulatedMerge
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batch moss.Batch
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buf []byte // Non-nil when using pre-alloc'ed / NewBatchEx().
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bufUsed int
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}
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func (b *Batch) Set(key, val []byte) {
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var err error
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if b.buf != nil {
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b.bufUsed += len(key) + len(val)
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err = b.batch.AllocSet(key, val)
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} else {
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err = b.batch.Set(key, val)
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}
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if err != nil {
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b.store.Logf("bleve moss batch.Set err: %v", err)
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}
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}
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func (b *Batch) Delete(key []byte) {
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var err error
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if b.buf != nil {
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b.bufUsed += len(key)
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err = b.batch.AllocDel(key)
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} else {
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err = b.batch.Del(key)
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}
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if err != nil {
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b.store.Logf("bleve moss batch.Delete err: %v", err)
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}
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}
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func (b *Batch) Merge(key, val []byte) {
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if b.buf != nil {
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b.bufUsed += len(key) + len(val)
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}
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b.merge.Merge(key, val)
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}
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func (b *Batch) Reset() {
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err := b.Close()
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if err != nil {
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b.store.Logf("bleve moss batch.Close err: %v", err)
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return
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}
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batch, err := b.store.ms.NewBatch(0, 0)
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if err == nil {
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b.batch = batch
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b.merge = store.NewEmulatedMerge(b.store.mo)
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b.buf = nil
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b.bufUsed = 0
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}
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}
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func (b *Batch) Close() error {
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b.merge = nil
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err := b.batch.Close()
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b.batch = nil
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return err
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}
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