/** based on http://www.exampledepot.com/egs/java.net/Post.html */
private long getNewRobotUID() {
long new_uid = 0;
try {
// Send data
URL url = new URL("https://marginallyclever.com/stewart_platform_getuid.php");
URLConnection conn = url.openConnection();
try (final InputStream connectionInputStream = conn.getInputStream();
final Reader inputStreamReader = new InputStreamReader(connectionInputStream);
final BufferedReader rd = new BufferedReader(inputStreamReader)) {
String line = rd.readLine();
new_uid = Long.parseLong(line);
}
} catch (Exception e) {
e.printStackTrace();
return 0;
}
// did read go ok?
if (new_uid != 0) {
// make sure a topLevelMachinesPreferenceNode node is created
// tell the robot it's new UID.
this.sendLineToRobot("UID " + new_uid);
}
return new_uid;
}
@Override
// override this method to check that the software is connected to the right type of robot.
public void dataAvailable(AbstractConnection arg0, String line) {
if (line.contains(hello)) {
isPortConfirmed = true;
// finalizeMove();
setModeAbsolute();
this.sendLineToRobot("R1");
String uidString = line.substring(hello.length()).trim();
System.out.println(">>> UID=" + uidString);
try {
long uid = Long.parseLong(uidString);
if (uid == 0) {
robotUID = getNewRobotUID();
} else {
robotUID = uid;
}
updateGUI();
} catch (Exception e) {
e.printStackTrace();
}
displayName = "Rotary Stewart Platform 2 #" + robotUID;
}
}