milvus/pkg/mq/msgstream/repack_func.go
SimFG 26f06dd732
Format the code (#27275)
Signed-off-by: SimFG <bang.fu@zilliz.com>
2023-09-21 09:45:27 +08:00

111 lines
3.3 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 msgstream
import (
"fmt"
"github.com/cockroachdb/errors"
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
)
// InsertRepackFunc is used to repack messages after hash by primary key
func InsertRepackFunc(tsMsgs []TsMsg, hashKeys [][]int32) (map[int32]*MsgPack, error) {
result := make(map[int32]*MsgPack)
for i, request := range tsMsgs {
if request.Type() != commonpb.MsgType_Insert {
return nil, errors.New("msg's must be Insert")
}
insertRequest := request.(*InsertMsg)
keys := hashKeys[i]
keysLen := len(keys)
if err := insertRequest.CheckAligned(); err != nil {
return nil, err
}
if insertRequest.NRows() != uint64(keysLen) {
return nil, errors.New("the length of hashValue, timestamps, rowIDs, RowData are not equal")
}
for index, key := range keys {
_, ok := result[key]
if !ok {
msgPack := MsgPack{}
result[key] = &msgPack
}
insertMsg := insertRequest.IndexMsg(index)
result[key].Msgs = append(result[key].Msgs, insertMsg)
}
}
return result, nil
}
// DeleteRepackFunc is used to repack messages after hash by primary key
func DeleteRepackFunc(tsMsgs []TsMsg, hashKeys [][]int32) (map[int32]*MsgPack, error) {
result := make(map[int32]*MsgPack)
for i, request := range tsMsgs {
if request.Type() != commonpb.MsgType_Delete {
return nil, errors.New("msg's must be Delete")
}
deleteRequest := request.(*DeleteMsg)
keys := hashKeys[i]
timestampLen := len(deleteRequest.Timestamps)
keysLen := len(keys)
if keysLen != timestampLen || int64(keysLen) != deleteRequest.NumRows {
return nil, errors.New("the length of hashValue, timestamps, primaryKeys are not equal")
}
key := keys[0]
_, ok := result[key]
if !ok {
result[key] = &MsgPack{}
}
result[key].Msgs = append(result[key].Msgs, request)
}
return result, nil
}
// DefaultRepackFunc is used to repack messages after hash by primary key
func DefaultRepackFunc(tsMsgs []TsMsg, hashKeys [][]int32) (map[int32]*MsgPack, error) {
if len(hashKeys) < len(tsMsgs) {
return nil, fmt.Errorf(
"the length of hash keys (%d) is less than the length of messages (%d)",
len(hashKeys),
len(tsMsgs),
)
}
// after assigning segment id to msg, tsMsgs was already re-bucketed
pack := make(map[int32]*MsgPack)
for idx, msg := range tsMsgs {
if len(hashKeys[idx]) <= 0 {
return nil, fmt.Errorf("no hash key for %dth message", idx)
}
key := hashKeys[idx][0]
_, ok := pack[key]
if !ok {
pack[key] = &MsgPack{}
}
pack[key].Msgs = append(pack[key].Msgs, msg)
}
return pack, nil
}