86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
|
// Copyright (c) 2016 Couchbase, Inc.
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the
|
||
|
|
// License. You may obtain a copy of the License at
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
// Unless required by applicable law or agreed to in writing,
|
||
|
|
// software distributed under the License is distributed on an "AS
|
||
|
|
// IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
|
||
|
|
// express or implied. See the License for the specific language
|
||
|
|
// governing permissions and limitations under the License.
|
||
|
|
|
||
|
|
package moss
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
|
||
|
|
"github.com/blevesearch/bleve/index/store"
|
||
|
|
|
||
|
|
"github.com/couchbase/moss"
|
||
|
|
)
|
||
|
|
|
||
|
|
type Writer struct {
|
||
|
|
s *Store
|
||
|
|
}
|
||
|
|
|
||
|
|
func (w *Writer) NewBatch() store.KVBatch {
|
||
|
|
b, err := w.s.ms.NewBatch(0, 0)
|
||
|
|
if err != nil {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
return &Batch{
|
||
|
|
store: w.s,
|
||
|
|
merge: store.NewEmulatedMerge(w.s.mo),
|
||
|
|
batch: b,
|
||
|
|
alloced: false,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (w *Writer) NewBatchEx(options store.KVBatchOptions) (
|
||
|
|
[]byte, store.KVBatch, error) {
|
||
|
|
numOps := options.NumSets + options.NumDeletes + options.NumMerges
|
||
|
|
|
||
|
|
b, err := w.s.ms.NewBatch(numOps, options.TotalBytes)
|
||
|
|
if err != nil {
|
||
|
|
return nil, nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
buf, err := b.Alloc(options.TotalBytes)
|
||
|
|
if err != nil {
|
||
|
|
return nil, nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return buf, &Batch{
|
||
|
|
store: w.s,
|
||
|
|
merge: store.NewEmulatedMerge(w.s.mo),
|
||
|
|
batch: b,
|
||
|
|
alloced: true,
|
||
|
|
}, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (w *Writer) ExecuteBatch(b store.KVBatch) error {
|
||
|
|
batch, ok := b.(*Batch)
|
||
|
|
if !ok {
|
||
|
|
return fmt.Errorf("wrong type of batch")
|
||
|
|
}
|
||
|
|
|
||
|
|
for kStr, mergeOps := range batch.merge.Merges {
|
||
|
|
k := []byte(kStr)
|
||
|
|
|
||
|
|
for _, v := range mergeOps {
|
||
|
|
err := batch.batch.Merge(k, v)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return w.s.ms.ExecuteBatch(batch.batch, moss.WriteOptions{})
|
||
|
|
}
|
||
|
|
|
||
|
|
func (w *Writer) Close() error {
|
||
|
|
w.s = nil
|
||
|
|
return nil
|
||
|
|
}
|