51becbde
 Peter M. Groen
Committed the ent...
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#ifndef OSDEV_COMPONENTS_MQTT_MQTTUTIL_H
#define OSDEV_COMPONENTS_MQTT_MQTTUTIL_H
// std
#include <string>
namespace osdev {
namespace components {
namespace mqtt {
/*!
* \brief Determine if topic is a valid mqtt topic filter.
* \param topic - The topic to test.
* \return True when topic is valid, false otherwise.
*/
bool isValidTopic( const std::string &topic );
/*!
* \brief Test a topic against another topicfilter for overlap.
* \param existingTopic - The topic to test against
* \param newTopic - The topic to test.
* \return True when topics overlap, false otherwise
*/
bool testForOverlap( const std::string & existingTopic, const std::string &newTopic );
/*!
* \brief Test a topic for occurence of wildcards
* \param topic - The topic to test
* \return True if topics contains wildcards, false otherwise
*/
bool hasWildcard( const std::string &topic );
/*!
* \brief Create a regular expression string based on a topicfilter that can be used
* to match topic strings against topics with no wildcards.
* \pre The topic filter is valid.
* \return The regular expression string. If the topic filter is not valid then the
* returned string is also not valid.
*/
std::string convertTopicToRegex( const std::string &topic );
} // End namespace mqtt
} // End namespace components
} // osdev
#endif // OSDEV_COMPONENTS_MQTT_MQTTUTIL_H
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