server_exception.h

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/*
 * Copyright 2023 MusicScience37 (Kenta Kabashima)
 *
 * 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 <memory>
 
#include <msgpack.hpp>
 
#include "msgpack_rpc/common/msgpack_rpc_exception.h"
#include "msgpack_rpc/common/status_code.h"
#include "msgpack_rpc/impl/msgpack_rpc_export.h"
 
namespace msgpack_rpc::clients {

class MSGPACK_RPC_EXPORT ServerException : public MsgpackRPCException {
public:
    // Exceptions must be exported in libraries. If not exported, exceptions
    // cannot be caught correctly.

    ServerException(
        msgpack::object object, std::shared_ptr<msgpack::zone> zone);

    [[nodiscard]] const msgpack::object& object() const noexcept;

    template <typename T>
    [[nodiscard]] T error_as() const {
        try {
            return object().as<T>();
        } catch (const msgpack::type_error&) {
            throw MsgpackRPCException(
                StatusCode::TYPE_ERROR, "Invalid type of the error.");
        }
    }

    ServerException(const ServerException&) noexcept;

    ServerException(ServerException&&) noexcept;

    ServerException& operator=(const ServerException&) noexcept;

    ServerException& operator=(ServerException&&) noexcept;

    ~ServerException() noexcept override;
 
private:
    std::shared_ptr<msgpack::zone> zone_;

    msgpack::object object_;
};
 
}  // namespace msgpack_rpc::clients