fixing bluetooth was being asked everytime

Author: mageddo

src/main/java/com/mageddo/linux/bluetoothfix/BluetoothConnector.java

@@ -8,11 +8,15 @@
 import org.apache.commons.exec.CommandLine;
 import org.apache.commons.lang3.time.StopWatch;
 
+import javax.swing.*;
+
 @Slf4j
 public class BluetoothConnector {
+
  public static final boolean PRINT_OUT = false;
  public static final int BLUETOOTH_POWER_ON_DELAY = 1000;
  private final int timeoutSecs = 10;
+ private char[] sudoPassword;
 
  public void connect(String deviceId) {
 
@@ -70,15 +74,28 @@ boolean disconnect(String deviceId) {
  CommandLines.Result restartService() {
 
  log.warn("systemctl will ask you for root password to restart bluetooth service ...");
+ if (this.sudoPassword == null) {
+ while (true) {
+ JPasswordField pf = new JPasswordField();
+ final int res = JOptionPane.showConfirmDialog(null, pf, "Enter Password", JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
+ if (res == JOptionPane.OK_OPTION) {
+ this.sudoPassword = pf.getPassword();
+ break;
+ }
+ }
+ }
 
  final CommandLine cmd = new CommandLine("/bin/sh")
  .addArguments(new String[]{
  "-c",
- "systemctl restart bluetooth.service",
+ String.format(
+ "echo %s | /usr/bin/sudo -S systemctl restart bluetooth.service",
+ new String(this.sudoPassword)
+ )
  }, false);
  final CommandLines.Result result = CommandLines.exec(cmd)
  .checkExecution();
- log.info("status=restarted, {}", result.toString(PRINT_OUT));
+ log.debug("status=restarted, {}", result.toString(PRINT_OUT));
  Threads.sleep(BLUETOOTH_POWER_ON_DELAY); // wait some time to bluetooth power on
  return result;
  }