subscriber.h
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/* ****************************************************************************
* Copyright 2019 Open Systems Development BV *
* *
* 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. *
* ***************************************************************************/
#pragma once
// std
#include <memory>
#include <string>
// mqtt-cpp
#include "mqttclient.h"
#include "compat-c++14.h"
class Subscriber
{
public:
Subscriber(const std::string &client_id);
virtual ~Subscriber() {}
void connect( const std::string &hostname, int portnumber = 1883, const std::string &username = std::string(), const std::string &password = std::string(),
const std::string &lwt_topic = std::string(), const std::string &lwt_message = std::string() );
void subscribe( const std::string &message_topic );
void unsubscribe( const std::string &message_topic );
protected:
void receive_data( const std::string &message_topic, const std::string &message_payload );
private:
osdev::components::mqtt::MqttClient m_mqtt_client;
};