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a602171d06
#28165 Signed-off-by: luzhang <luzhang@zilliz.com> Co-authored-by: luzhang <luzhang@zilliz.com>
89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <vector>
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#include <memory>
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#include <utility>
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#include "common/FieldData.h"
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#include "storage/Types.h"
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#include "storage/PayloadStream.h"
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#include "storage/BinlogReader.h"
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namespace milvus::storage {
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class DataCodec {
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public:
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explicit DataCodec(FieldDataPtr data, CodecType type)
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: field_data_(std::move(data)), codec_type_(type) {
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}
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virtual ~DataCodec() = default;
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// Serialized data can be written directly to remote or local disk
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virtual std::vector<uint8_t>
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Serialize(StorageType medium) = 0;
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virtual void
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SetFieldDataMeta(const FieldDataMeta& meta) = 0;
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void
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SetTimestamps(Timestamp start_timestamp, Timestamp end_timestamp) {
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// if milvus version <= 2.2.5
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// assert(start_timestamp <= end_timestamp) condition may not be satisfied
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time_range_ = std::make_pair(start_timestamp, end_timestamp);
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}
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std::pair<Timestamp, Timestamp>
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GetTimeRage() const {
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return time_range_;
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}
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CodecType
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GetCodecType() const {
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return codec_type_;
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}
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DataType
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GetDataType() {
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return field_data_->get_data_type();
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}
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FieldDataPtr
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GetFieldData() const {
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return field_data_;
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}
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protected:
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CodecType codec_type_;
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std::pair<Timestamp, Timestamp> time_range_;
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FieldDataPtr field_data_;
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};
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// Deserialize the data stream of the file obtained from remote or local
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std::unique_ptr<DataCodec>
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DeserializeFileData(const std::shared_ptr<uint8_t[]> input, int64_t length);
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std::unique_ptr<DataCodec>
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DeserializeRemoteFileData(BinlogReaderPtr reader);
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std::unique_ptr<DataCodec>
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DeserializeLocalFileData(BinlogReaderPtr reader);
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} // namespace milvus::storage
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