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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package bleve
import (
"github.com/blevesearch/bleve/v2"
)
// FlushingBatch is a batch of operations that automatically flushes to the
// underlying index once it reaches a certain size.
type FlushingBatch struct {
maxBatchSize int
batch *bleve.Batch
index bleve.Index
}
// NewFlushingBatch creates a new flushing batch for the specified index. Once
// the number of operations in the batch reaches the specified limit, the batch
// automatically flushes its operations to the index.
func NewFlushingBatch(index bleve.Index, maxBatchSize int) *FlushingBatch {
return &FlushingBatch{
maxBatchSize: maxBatchSize,
batch: index.NewBatch(),
index: index,
}
}
// Index add a new index to batch
func (b *FlushingBatch) Index(id string, data any) error {
if err := b.batch.Index(id, data); err != nil {
return err
}
return b.flushIfFull()
}
// Delete add a delete index to batch
func (b *FlushingBatch) Delete(id string) error {
b.batch.Delete(id)
return b.flushIfFull()
}
func (b *FlushingBatch) flushIfFull() error {
if b.batch.Size() < b.maxBatchSize {
return nil
}
return b.Flush()
}
// Flush submit the batch and create a new one
func (b *FlushingBatch) Flush() error {
err := b.index.Batch(b.batch)
if err != nil {
return err
}
b.batch = b.index.NewBatch()
return nil
}
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