subscriber.cpp
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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. *
* ***************************************************************************/
#include "subscriber.h"
#include <iostream>
Subscriber::Subscriber( const std::string &client_id )
: m_mqtt_client( client_id )
{
}
void Subscriber::connect( const std::string &hostname, int portnumber, const std::string &username, const std::string &password, const std::string &lwt_topic, const std::string &lwt_message )
{
m_mqtt_client.connect( hostname, portnumber, osdev::components::mqtt::Credentials( username, password ), osdev::components::mqtt::mqtt_LWT( lwt_topic, lwt_message ) );
std::cout << "Client state : " << m_mqtt_client.state() << std::endl;
}
void Subscriber::subscribe( const std::string &message_topic )
{
m_mqtt_client.subscribe( message_topic, 1, [this](const osdev::components::mqtt::MqttMessage &message )
{
this->receive_data( message.topic(), message.payload() );
});
}
void Subscriber::receive_data( const std::string &message_topic, const std::string &message_payload )
{
std::cout << "[Subscriber::receive_data] - Received message : " << message_payload << " from topic : " << message_topic << std::endl;
}