in cloudwatch_metrics_collector/src/metrics_collector_parameter_helper.cpp [163:174]
void ReadTopics(std::vector<std::string> & topics) {
std::string param_key;
if (ros::param::search(kNodeParamMonitorTopicsListKey, param_key)) {
ros::param::get(param_key, topics);
}
if (topics.empty()) {
AWS_LOGSTREAM_INFO(
__func__, "Topic list not defined or empty. Listening on topic: " << kNodeDefaulMetricsTopic);
topics.push_back(kNodeDefaulMetricsTopic);
}
}