json_array.hpp

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// Copyright 2024 Man Group Operations Limited
//
// Licensed 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 "sparrow/utils/extension.hpp"
#include "sparrow/variable_size_binary_array.hpp"
#include "sparrow/variable_size_binary_view_array.hpp"
 
namespace sparrow_extensions
{
 
    using json_extension = sparrow::simple_extension<"arrow.json">;
    using json_array = sparrow::variable_size_binary_array_impl<
        sparrow::arrow_traits<std::string>::value_type,
        sparrow::arrow_traits<std::string>::const_reference,
        std::int32_t,
        json_extension>;

    using big_json_array = sparrow::variable_size_binary_array_impl<
        sparrow::arrow_traits<std::string>::value_type,
        sparrow::arrow_traits<std::string>::const_reference,
        std::int64_t,
        json_extension>;

    using json_view_array = sparrow::variable_size_binary_view_array_impl<
        sparrow::arrow_traits<std::string>::value_type,
        sparrow::arrow_traits<std::string>::const_reference,
        json_extension>;
}
 
namespace sparrow::detail
{
    template <>
    struct get_data_type_from_array<sparrow_extensions::json_array>
    {
        [[nodiscard]] static constexpr sparrow::data_type get()
        {
            return sparrow::data_type::STRING;
        }
    };
 
    template <>
    struct get_data_type_from_array<sparrow_extensions::big_json_array>
    {
        [[nodiscard]] static constexpr sparrow::data_type get()
        {
            return sparrow::data_type::LARGE_STRING;
        }
    };
 
    template <>
    struct get_data_type_from_array<sparrow_extensions::json_view_array>
    {
        [[nodiscard]] static constexpr sparrow::data_type get()
        {
            return sparrow::data_type::STRING_VIEW;
        }
    };
}