Bluetooth LE Wireless Peripheral Advertising connects to a central Bluetooth LE device

I want to develop an application such as a Bluetooth LE peripheral that stops ads when connected to a central Bluetooth LE and restricts a Bluetooth LE peripheral that connects to multiple central Bluetooth LEs.

One Bluetooth LE peripheral only connects to one Bluetooth LE at a time. Another Bluetooth LE host failed to scan after successfully pairing the Bluetooth LE peripheral and the Bluetooth LE host

So far I am trying to make the code below:

private final BluetoothGattServerCallback mGattServerCallback = new BluetoothGattServerCallback() {

        @Override
        public void onServiceAdded(int status, BluetoothGattService service) {
                                                                                                            super.onServiceAdded(status, service);
        }

        @Override
        public void onConnectionStateChange(BluetoothDevice device, final int status, int newState) {
            super.onConnectionStateChange(device, status, newState);
            if (status == BluetoothGatt.GATT_SUCCESS) {
                if (newState == BluetoothGatt.STATE_CONNECTED) {
                    mBluetoothDevices.add(device);

                    // Bluetooth LE peripheral stop advertising on connect with Bluetooth LE central device
                    mAdvertiser.stopAdvertising(mAdvCallback);

                    Log.v(TAG, "Connected to device: " + device.getAddress());
                } else if (newState == BluetoothGatt.STATE_DISCONNECTED) {
                    mBluetoothDevices.remove(device);
                    Log.v(TAG, "Disconnected from device");
                }
            } else {
                mBluetoothDevices.remove(device);
                // There are too many gatt errors (some of them not even in the documentation) so we just
                // show the error to the user.
                final String errorMessage = getString(R.string.status_errorWhenConnecting) + ": " + status;
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(MainActivity.this, errorMessage, Toast.LENGTH_LONG).show();
                    }
                });
                Log.e(TAG, "Error when connecting: " + status);
            }
        }

        @Override
        public void onCharacteristicReadRequest(BluetoothDevice device, int requestId, int offset,
                                                BluetoothGattCharacteristic characteristic) {
        }

        @Override
        public void onNotificationSent(BluetoothDevice device, int status) {
            super.onNotificationSent(device, status);
            Log.v(TAG, "Notification sent. Status: " + status);
        }

        @Override
        public void onCharacteristicWriteRequest(BluetoothDevice device, int requestId,
                                                 BluetoothGattCharacteristic characteristic, boolean preparedWrite, boolean responseNeeded, int offset, byte[] value) {
        }

        @Override
        public void onDescriptorWriteRequest(BluetoothDevice device, int requestId,
                                             BluetoothGattDescriptor descriptor, boolean preparedWrite, boolean responseNeeded,
                                             int offset,
                                             byte[] value) {
        }
    };

      

        
        
        
      

    

I stop ads when connected with central BLE device mAdvertiser.stopAdvertising(mAdvCallback);

Disconnects the connection.

Please help me with this use case. THANKS FOR THE EXPANSION