dv_writer.h

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/*
 * Licensed to the Apache Software Foundation (ASF) 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 <cstdint>
#include <functional>
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
 
#include "iceberg/deletes/position_delete_index.h"
#include "iceberg/iceberg_export.h"
#include "iceberg/result.h"
#include "iceberg/row/partition_values.h"
#include "iceberg/type_fwd.h"
 
namespace iceberg {
 
struct ICEBERG_EXPORT DeleteWriteResult {
  std::vector<std::shared_ptr<DataFile>> data_files;
  std::vector<std::string> referenced_data_files;
  std::vector<std::shared_ptr<DataFile>> rewritten_delete_files;
};
 
struct ICEBERG_EXPORT DVWriterOptions {
  std::string path;
  std::shared_ptr<FileIO> io;
  std::function<Result<std::optional<PositionDeleteIndex>>(std::string_view)>
      load_previous_deletes;
};
 
class ICEBERG_EXPORT DVWriter {
 public:
  ~DVWriter();
 
  static Result<std::unique_ptr<DVWriter>> Make(DVWriterOptions options);
 
  Status Delete(std::string_view referenced_data_file, int64_t pos,
                const std::shared_ptr<PartitionSpec>& spec,
                const PartitionValues& partition);
 
  Status Delete(std::string_view referenced_data_file,
                const PositionDeleteIndex& positions,
                const std::shared_ptr<PartitionSpec>& spec,
                const PartitionValues& partition);
 
  Status Close();
 
  Result<DeleteWriteResult> Metadata();
 
 private:
  class Impl;
  std::unique_ptr<Impl> impl_;
 
  explicit DVWriter(std::unique_ptr<Impl> impl);
};
 
}  // namespace iceberg