// 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 <memory>

#include <utility>

#include <vector>

#include "format/orc/vorc_reader.h"

#include "format/parquet/vparquet_reader.h"

#include "format/table/table_schema_change_helper.h"

namespace doris {

class HiveOrcReader final : public OrcReader, public TableSchemaChangeHelper {

public:

    ENABLE_FACTORY_CREATOR(HiveOrcReader);

    HiveOrcReader(RuntimeProfile* profile, RuntimeState* state, const TFileScanRangeParams& params,

                  const TFileRangeDesc& range, size_t batch_size, const std::string& ctz,

                  io::IOContext* io_ctx, const std::set<TSlotId>* is_file_slot,

                  FileMetaCache* meta_cache = nullptr, bool enable_lazy_mat = true)

            : OrcReader(profile, state, params, range, batch_size, ctz, io_ctx, meta_cache,

                        enable_lazy_mat),

              _is_file_slot(is_file_slot) {}

    HiveOrcReader(RuntimeProfile* profile, RuntimeState* state, const TFileScanRangeParams& params,

                  const TFileRangeDesc& range, size_t batch_size, const std::string& ctz,

                  std::shared_ptr<io::IOContext> io_ctx_holder,

                  const std::set<TSlotId>* is_file_slot, FileMetaCache* meta_cache = nullptr,

                  bool enable_lazy_mat = true)

            : OrcReader(profile, state, params, range, batch_size, ctz, std::move(io_ctx_holder),

                        meta_cache, enable_lazy_mat),

              _is_file_slot(is_file_slot) {}

    ~HiveOrcReader() final = default;

protected:

    Status on_before_init_reader(ReaderInitContext* ctx) override;

private:

    static ColumnIdResult _create_column_ids(const orc::Type* orc_type,

                                             const TupleDescriptor* tuple_descriptor);

    static ColumnIdResult _create_column_ids_by_top_level_col_index(

            const orc::Type* orc_type, const TupleDescriptor* tuple_descriptor);

    const std::set<TSlotId>* _is_file_slot = nullptr;

};

class HiveParquetReader final : public ParquetReader, public TableSchemaChangeHelper {

public:

    ENABLE_FACTORY_CREATOR(HiveParquetReader);

    HiveParquetReader(RuntimeProfile* profile, const TFileScanRangeParams& params,

                      const TFileRangeDesc& range, size_t batch_size, const cctz::time_zone* ctz,

                      io::IOContext* io_ctx, RuntimeState* state,

                      const std::set<TSlotId>* is_file_slot, FileMetaCache* meta_cache = nullptr,

                      bool enable_lazy_mat = true)

            : ParquetReader(profile, params, range, batch_size, ctz, io_ctx, state, meta_cache,

                            enable_lazy_mat),

              _is_file_slot(is_file_slot) {}

    HiveParquetReader(RuntimeProfile* profile, const TFileScanRangeParams& params,

                      const TFileRangeDesc& range, size_t batch_size, const cctz::time_zone* ctz,

                      std::shared_ptr<io::IOContext> io_ctx_holder, RuntimeState* state,

                      const std::set<TSlotId>* is_file_slot, FileMetaCache* meta_cache = nullptr,

                      bool enable_lazy_mat = true)

            : ParquetReader(profile, params, range, batch_size, ctz, std::move(io_ctx_holder),

                            state, meta_cache, enable_lazy_mat),

              _is_file_slot(is_file_slot) {}

    ~HiveParquetReader() final = default;

protected:

    Status on_before_init_reader(ReaderInitContext* ctx) override;

private:

    static ColumnIdResult _create_column_ids(const FieldDescriptor* field_desc,

                                             const TupleDescriptor* tuple_descriptor);

    static ColumnIdResult _create_column_ids_by_top_level_col_index(

            const FieldDescriptor* field_desc, const TupleDescriptor* tuple_descriptor);

    const std::set<TSlotId>* _is_file_slot = nullptr;

};

} // namespace doris