milvus/internal/flushcommon/metacache/bm25_stats.go

75 lines
2.0 KiB
Go

// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 metacache
import (
"sync"
"github.com/pingcap/log"
"go.uber.org/zap"
"github.com/milvus-io/milvus/internal/storage"
)
type SegmentBM25Stats struct {
mut sync.RWMutex
stats map[int64]*storage.BM25Stats
}
func (s *SegmentBM25Stats) Merge(stats map[int64]*storage.BM25Stats) {
s.mut.Lock()
defer s.mut.Unlock()
for fieldID, current := range stats {
if history, ok := s.stats[fieldID]; !ok {
s.stats[fieldID] = current.Clone()
} else {
history.Merge(current)
}
}
}
func (s *SegmentBM25Stats) Serialize() (map[int64][]byte, map[int64]int64, error) {
s.mut.Lock()
defer s.mut.Unlock()
result := make(map[int64][]byte)
numRow := make(map[int64]int64)
for fieldID, stats := range s.stats {
bytes, err := stats.Serialize()
if err != nil {
log.Warn("serialize history bm25 stats failed", zap.Int64("fieldID", fieldID))
return nil, nil, err
}
result[fieldID] = bytes
numRow[fieldID] = stats.NumRow()
}
return result, numRow, nil
}
func NewEmptySegmentBM25Stats() *SegmentBM25Stats {
return &SegmentBM25Stats{
stats: make(map[int64]*storage.BM25Stats),
}
}
func NewSegmentBM25Stats(stats map[int64]*storage.BM25Stats) *SegmentBM25Stats {
return &SegmentBM25Stats{
stats: stats,
}
}