@Override
public void stopPolling() {
if (_comPort != null && _usable && _isQuestionSupported) {
((SerialPort) _comPort).removeEventListener();
_comPort.close();
}
}
/**
* @return A HashSet containing the CommPortIdentifier for all serial ports that are not currently
* being used.
*/
@SuppressWarnings({"rawtypes"})
private static HashSet<CommPortIdentifier> getAvailableSerialPorts() {
HashSet<CommPortIdentifier> h = new HashSet<CommPortIdentifier>();
Enumeration thePorts = CommPortIdentifier.getPortIdentifiers();
while (thePorts.hasMoreElements()) {
CommPortIdentifier com = (CommPortIdentifier) thePorts.nextElement();
switch (com.getPortType()) {
case CommPortIdentifier.PORT_SERIAL:
try {
CommPort thePort = com.open("CommUtil", 50);
thePort.close();
h.add(com);
} catch (PortInUseException e) {
System.out.println("Port, " + com.getName() + ", is in use.");
} catch (Exception e) {
System.err.println("Failed to open port " + com.getName());
e.printStackTrace();
}
}
}
return h;
}
