Configurator.h

/*
 * Configurator.h
 *
 *  Created on: 13.01.2018
 *      Author: Micha Mueller
 */

#ifndef SRC_CONFIGURATOR_H_
#define SRC_CONFIGURATOR_H_

#include "Sensor.h"

#include <vector>
#include <string>

typedef struct {
	std::string mqttPrefix;
	std::string	tempdir;
	unsigned int cacheInterval;
} pluginSettings_t;

/**
 * Base class, which defines the interface for the configurators in the shared dynamic libraries.
 * This base class shall not be constructed on itw own.
 */
class Configurator {
public:
	Configurator() : _cacheInterval(900000) {}

	virtual ~Configurator() {
		for (auto s : _sensors) {
			delete s;
		}
	}

	/**
	 * Read in the given configuration
	 * @param	cfgPath Path to the config-file
	 * @return	true on success, false otherwise
	 */
	virtual bool readConfig(std::string cfgPath) {
		_cfgPath = cfgPath;
		return true;
	}

	/**
	 * Clear internal storage and read in the configuration again.
	 */
	virtual bool reReadConfig() {
		for (auto s : _sensors) {
			s->stopPolling();
		}
		for (auto s : _sensors) {
			delete s;
		}
		_sensors.clear();
		return this->readConfig(_cfgPath);
	}

	virtual void setGlobalSettings(const pluginSettings_t& pluginSettings) {
		_mqttPrefix = pluginSettings.mqttPrefix;
		_cacheInterval = pluginSettings.cacheInterval;
	}

	std::vector<Sensor*>& getSensors() {
		return _sensors;
	}

protected:
	std::string _cfgPath;
	std::string _mqttPrefix;
	unsigned int _cacheInterval;
	std::vector<Sensor*> _sensors;
	boost::log::sources::severity_logger<boost::log::trivial::severity_level> lg;
};

//typedef for more readable usage of create()- and destroy()-methods, required for dynamic libraries
typedef Configurator* create_t();
typedef void destroy_t(Configurator*);

#endif /* SRC_CONFIGURATOR_H_ */