mirror of
https://gitee.com/milvus-io/milvus.git
synced 2026-01-01 16:35:29 +08:00
68 lines
1.8 KiB
C++
68 lines
1.8 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 <memory>
|
|
#include <vector>
|
|
|
|
#include "storage/PayloadStream.h"
|
|
#include <parquet/arrow/writer.h>
|
|
|
|
namespace milvus::storage {
|
|
class PayloadWriter {
|
|
public:
|
|
explicit PayloadWriter(const DataType column_type);
|
|
explicit PayloadWriter(const DataType column_type, int dim);
|
|
~PayloadWriter() = default;
|
|
|
|
void
|
|
add_payload(const Payload& raw_data);
|
|
|
|
void
|
|
add_one_string_payload(const char* str, int str_size);
|
|
|
|
void
|
|
add_one_binary_payload(const uint8_t* data, int length);
|
|
|
|
void
|
|
finish();
|
|
|
|
bool
|
|
has_finished();
|
|
|
|
const std::vector<uint8_t>&
|
|
get_payload_buffer() const;
|
|
|
|
int
|
|
get_payload_length() const {
|
|
return rows_;
|
|
}
|
|
|
|
private:
|
|
void
|
|
init_dimension(int dim);
|
|
|
|
private:
|
|
DataType column_type_;
|
|
std::shared_ptr<arrow::ArrayBuilder> builder_;
|
|
std::shared_ptr<arrow::Schema> schema_;
|
|
std::shared_ptr<PayloadOutputStream> output_;
|
|
std::atomic<int> rows_ = 0;
|
|
std::optional<int> dimension_; // binary vector, float vector
|
|
};
|
|
} // namespace milvus::storage
|