51becbde
 Peter M. Groen
Committed the ent...
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#ifndef OSDEV_COMPONENTS_MQTT_MLOGICTYPECONVERTER_H
#define OSDEV_COMPONENTS_MQTT_MLOGICTYPECONVERTER_H
// std
#include <chrono>
#include <ctime>
#include "date.h"
#include <string>
// boost
#include <boost/uuid/uuid.hpp>
#include "commondefs.h"
namespace osdev {
namespace components {
namespace mqtt {
/**
* @brief Utility namespace to convert between mqtt common types and other frequently used types.
*/
namespace MqttTypeConverter {
/**
* @brief Converts from MqttId to std::string.
* @param mqttId The mqttId to convert.
* @return The std::string with contents of the provided mqttId. Format is 12345678-9abc-def0-1234-56789abcdef0.
*/
std::string toStdString(const MqttId& mqttId);
/**
* @brief Converts from system clock timepoint to std::string.
* @tparam Duration std::chrono::duration instance.
* Duration::Period is used to determine the precision
* of the subsecond part of the returned ISO8601 string.
* Uses the duration of the StdTime type by default.
* @param tp The timepoint to converter.
* @return ISO8601 string representation of stdTime.
*/
template <typename Duration>
std::string toStdString(const std::chrono::time_point<std::chrono::system_clock, Duration>& tp)
{
return date::format("%FT%T%Ez", tp);
}
/**
* @brief Converts from std::string to MqttId.
* @param mqttId The MqttId string to convert.
* @return the converted string to MqttId.
*/
MqttId toMqttId(const std::string& mqttId);
/**
* @brief Creates a descriptive string based on the specified input parameters.
* @param str The prefix of the string.
* @param mqttId The id of which to use the first 4 characters.
* @return str + "-" + <first 4 characters of mqttId>
* Example: "Unassigned-a2c4".
*/
std::string toShortGuidAppendedString(const std::string& str, const MqttId& mqttId);
/**
* @brief Converts from PosixTime (time_t) to StdTime.
* @param posixTime The Posix Time (time_t) to convert.
* @return The StdTime with same value as the provided posixTime.
*/
StdTime toStdTime(const std::time_t& posixTime);
/**
* @brief Converts from StdTime to PosixTime (time_t).
* @param stdTime The StdTime to convert.
* @return The PosixTime with the same value as the provided stdTime.
*/
time_t toPosixTime(const osdev::components::mqtt::StdTime& stdTime);
/**
* @brief Converts the specified posixTimeString to an OptionalTime.
* @param posixTimeString A posix time as string.
* @return The converted posixTimeString.
* @retval boost::none if the specified posixTimeString could not be converted to a StdTime.
*/
osdev::components::mqtt::OptionalTime toOptionalTime(const std::string& posixTimeString);
} // End namespace MqttTypeConverter
} // End namespace mqtt
} // End namespace components
} // End namespace osdev
#endif // OSDEV_COMPONENTS_MQTT_MQTTTYPECONVERTER_H
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