SubProtocolFactory.cpp

Go to the documentation of this file.

/*
 * MQTTSuite - A lightweight MQTT Integration System
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2022, 2023, 2024, 2025
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * This program 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 General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <https://www.gnu.org/licenses/>.
 */
 
/*
 * MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
 
#include "SubProtocolFactory.h"
 
#include "lib/JsonMappingReader.h"
#include "lib/Mqtt.h"
 
#include <core/socket/stream/SocketConnection.h>
#include <web/websocket/SubProtocolContext.h>
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include <map>
#include <nlohmann/json.hpp>
#include <utils/Config.h>
 
#endif
 
namespace mqtt::mqttintegrator::websocket {
 
#define NAME "mqtt"
 
    SubProtocolFactory::SubProtocolFactory()
        : web::websocket::SubProtocolFactory<iot::mqtt::client::SubProtocol>::SubProtocolFactory(NAME) {
    }
 
    iot::mqtt::client::SubProtocol* SubProtocolFactory::create(web::websocket::SubProtocolContext* subProtocolContext) {
        iot::mqtt::client::SubProtocol* subProtocol = nullptr;
 
        nlohmann::json& mappingJson =
            mqtt::lib::JsonMappingReader::readMappingFromFile(utils::Config::getStringOptionValue("--mqtt-mapping-file"));
 
        if (mappingJson.contains("connection")) {
            subProtocol = new iot::mqtt::client::SubProtocol(
                subProtocolContext,
                getName(),
                new mqtt::mqttintegrator::lib::Mqtt(subProtocolContext->getSocketConnection()->getConnectionName(),
                                                    mappingJson["connection"],
                                                    mappingJson["mapping"],
                                                    utils::Config::getStringOptionValue("--mqtt-session-store")));
        }
 
        return subProtocol;
    }
 
} // namespace mqtt::mqttintegrator::websocket
 
extern "C" mqtt::mqttintegrator::websocket::SubProtocolFactory* mqttClientSubProtocolFactory() {
    return new mqtt::mqttintegrator::websocket::SubProtocolFactory();
}