Method refreshRolesString

flow/Trace.cpp:137–145

		std::string rolesString;

		void refreshRolesString() {
			rolesString = "";
			for (auto itr : roles) {
				if (!rolesString.empty()) {
					rolesString += ",";
				}
				rolesString += itr.first;
			}
		}
	};

	RoleInfo roleInfo;