mirror of
https://gitee.com/milvus-io/milvus.git
synced 2025-12-30 15:35:33 +08:00
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
// 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.
|
|
|
|
#pragma once
|
|
|
|
#include <vector>
|
|
#include <memory>
|
|
#include <utility>
|
|
|
|
#include "storage/Types.h"
|
|
#include "storage/FieldData.h"
|
|
#include "storage/PayloadStream.h"
|
|
#include "storage/BinlogReader.h"
|
|
|
|
namespace milvus::storage {
|
|
|
|
class DataCodec {
|
|
public:
|
|
explicit DataCodec(FieldDataPtr data, CodecType type)
|
|
: field_data_(data), codec_type_(type) {
|
|
}
|
|
|
|
virtual ~DataCodec() = default;
|
|
|
|
// Serialized data can be written directly to remote or local disk
|
|
virtual std::vector<uint8_t>
|
|
Serialize(StorageType medium) = 0;
|
|
|
|
virtual void
|
|
SetFieldDataMeta(const FieldDataMeta& meta) = 0;
|
|
|
|
void
|
|
SetTimestamps(Timestamp start_timestamp, Timestamp end_timestamp) {
|
|
assert(start_timestamp <= end_timestamp);
|
|
time_range_ = std::make_pair(start_timestamp, end_timestamp);
|
|
}
|
|
|
|
std::pair<Timestamp, Timestamp>
|
|
GetTimeRage() const {
|
|
return time_range_;
|
|
}
|
|
|
|
CodecType
|
|
GetCodecType() const {
|
|
return codec_type_;
|
|
}
|
|
|
|
DataType
|
|
GetDataType() {
|
|
return field_data_->get_data_type();
|
|
}
|
|
|
|
FieldDataPtr
|
|
GetFieldData() const {
|
|
return field_data_;
|
|
}
|
|
|
|
protected:
|
|
CodecType codec_type_;
|
|
std::pair<Timestamp, Timestamp> time_range_;
|
|
FieldDataPtr field_data_;
|
|
};
|
|
|
|
// Deserialize the data stream of the file obtained from remote or local
|
|
std::unique_ptr<DataCodec>
|
|
DeserializeFileData(const std::shared_ptr<uint8_t[]> input, int64_t length);
|
|
|
|
std::unique_ptr<DataCodec>
|
|
DeserializeRemoteFileData(BinlogReaderPtr reader);
|
|
|
|
std::unique_ptr<DataCodec>
|
|
DeserializeLocalFileData(BinlogReaderPtr reader);
|
|
|
|
} // namespace milvus::storage
|