/
commitlogger_parser_roaringset.go
81 lines (67 loc) · 1.91 KB
/
commitlogger_parser_roaringset.go
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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2023 Weaviate B.V. All rights reserved.
//
// CONTACT: hello@weaviate.io
//
package lsmkv
import (
"bufio"
"encoding/binary"
"io"
"os"
"github.com/pkg/errors"
"github.com/weaviate/weaviate/adapters/repos/db/lsmkv/roaringset"
"github.com/weaviate/weaviate/entities/diskio"
)
func (p *commitloggerParser) doRoaringSet() error {
f, err := os.Open(p.path)
if err != nil {
return err
}
metered := diskio.NewMeteredReader(f, nil)
p.reader = bufio.NewReaderSize(metered, 1*1024*1024)
for {
var commitType CommitType
err := binary.Read(p.reader, binary.LittleEndian, &commitType)
if err == io.EOF {
break
}
if err != nil {
f.Close()
return errors.Wrap(err, "read commit type")
}
if CommitTypeRoaringSet.Is(commitType) {
if err := p.parseRoaringSetNode(); err != nil {
f.Close()
return errors.Wrap(err, "read collection node")
}
} else {
f.Close()
return errors.Errorf("found a %s commit on collection bucket", commitType.String())
}
}
return f.Close()
}
func (p *commitloggerParser) parseRoaringSetNode() error {
lenBuf := make([]byte, 8)
if _, err := io.ReadFull(p.reader, lenBuf); err != nil {
return errors.Wrap(err, "read segment len")
}
segmentLen := binary.LittleEndian.Uint64(lenBuf)
segBuf := make([]byte, segmentLen)
copy(segBuf, lenBuf)
if _, err := io.ReadFull(p.reader, segBuf[8:]); err != nil {
return errors.Wrap(err, "read segment contents")
}
segment := roaringset.NewSegmentNodeFromBuffer(segBuf)
key := segment.PrimaryKey()
if err := p.memtable.roaringSetAddRemoveBitmaps(key, segment.Additions(), segment.Deletions()); err != nil {
return errors.Wrap(err, "add/remove bitmaps")
}
return nil
}