RequestHandler.h

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/*
 * Copyright (C) 2019-2021 Tobias Flaig.
 *
 * This file is part of nawa.
 *
 * nawa is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License,
 * version 3, as published by the Free Software Foundation.
 *
 * nawa is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with nawa.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef NAWA_REQUESTHANDLER_H
#define NAWA_REQUESTHANDLER_H
 
#include <memory>
#include <nawa/RequestHandler/HandleRequestFunction.h>
#include <nawa/config/Config.h>
#include <nawa/filter/AccessFilterList.h>
#include <nawa/internal/fwdecl.h>
#include <nawa/internal/macros.h>
#include <optional>
 
namespace nawa {
    class RequestHandler {
        NAWA_PRIVATE_DATA()
 
    protected:
        NAWA_DEFAULT_CONSTRUCTOR_DEF(RequestHandler);
 
    public:
        virtual ~RequestHandler();
 
        static std::unique_ptr<RequestHandler>
        newRequestHandler(std::shared_ptr<HandleRequestFunctionWrapper> const& handleRequestFunction, Config config,
                          int concurrency);
 
        static std::unique_ptr<RequestHandler>
        newRequestHandler(HandleRequestFunction handleRequestFunction, Config config, int concurrency);
 
        void setAppRequestHandler(std::shared_ptr<HandleRequestFunctionWrapper> handleRequestFunction) noexcept;
 
        void setAccessFilters(AccessFilterList accessFilters) noexcept;
 
        [[nodiscard]] std::shared_ptr<Config const> getConfig() const noexcept;
 
        void setConfig(Config config) noexcept;
 
        void reconfigure(std::optional<std::shared_ptr<HandleRequestFunctionWrapper>> handleRequestFunction,
                         std::optional<AccessFilterList> accessFilters, std::optional<Config> config) noexcept;
 
        void reconfigure(HandleRequestFunction handleRequestFunction, std::optional<AccessFilterList> accessFilters,
                         std::optional<Config> config) noexcept;
 
        virtual void start() = 0;
 
        virtual void stop() noexcept = 0;
 
        virtual void terminate() noexcept = 0;
 
        virtual void restart() noexcept {}
 
        virtual void join() noexcept = 0;
 
        void handleRequest(Connection& connection);
    };
}// namespace nawa
 
#endif//NAWA_REQUESTHANDLER_H