package communication;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Method;
import java.util.UUID;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.util.Log;
import com.ezio.multiwii.R;
public class BT_New extends Communication {
private static int ConnectingMethod = 2; // 2 to invoke
// Debugging
private static final String TAG = "BluetoothReadService";
private static final boolean D = true;
private static final UUID SerialPortServiceClass_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
private final BluetoothAdapter mAdapter;
private ConnectThread mConnectThread;
private ConnectedThread mConnectedThread;
private InputStream mmInStream;
private OutputStream mmOutStream;
SimpleQueue<Integer> fifo = new SimpleQueue<Integer>();
public synchronized void start() {
if (D)
Log.d(TAG, "start");
// Cancel any thread attempting to make a connection
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
// Cancel any thread currently running a connection
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
setState(STATE_NONE);
Connected = false;
}
public synchronized void connect(BluetoothDevice device) {
if (D)
Log.d(TAG, "connecting to: " + device);
// Cancel any thread attempting to make a connection
if (mState == STATE_CONNECTING) {
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
}
// Cancel any thread currently running a connection
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
// Start the thread to connect with the given device
mConnectThread = new ConnectThread(device);
mConnectThread.start();
setState(STATE_CONNECTING);
}
/**
* Start the ConnectedThread to begin managing a Bluetooth connection
*
* @param socket
* The BluetoothSocket on which the connection was made
* @param device
* The BluetoothDevice that has been connected
*/
public synchronized void connected(BluetoothSocket socket, BluetoothDevice device) {
if (D)
Log.d(TAG, "connected");
// Cancel the thread that completed the connection
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
// Cancel any thread currently running a connection
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
// Start the thread to manage the connection and perform transmissions
mConnectedThread = new ConnectedThread(socket);
mConnectedThread.start();
sendDeviceName(device.getName());
setState(STATE_CONNECTED);
Connected = true;
}
/**
* Stop all threads
*/
public synchronized void stop() {
if (D)
Log.d(TAG, "stop");
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
setState(STATE_NONE);
Connected = false;
// Toast.makeText(context, context.getString(R.string.Disconnected),
// Toast.LENGTH_LONG).show();
sendMessageToUI_Toast(context.getString(R.string.Disconnected));
}
/**
* Indicate that the connection attempt failed and notify the UI Activity.
*/
private void connectionFailed() {
setState(STATE_NONE);
Connected = false;
Log.d(TAG, "connectionFailed");
sendMessageToUI_Toast(context.getString(R.string.Unabletoconnect));
}
/**
* Indicate that the connection was lost and notify the UI Activity.
*/
private void connectionLost() {
setState(STATE_NONE);
Connected = false;
Log.d(TAG, "connectionLost");
sendMessageToUI_Toast(context.getString(R.string.ConnectionLost));
}
/**
* This thread runs while attempting to make an outgoing connection with a
* device. It runs straight through; the connection either succeeds or
* fails.
*/
private class ConnectThread extends Thread {
private final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;
public ConnectThread(BluetoothDevice device) {
Log.d(TAG, "ConnectThread Start - " + device.getAddress());
mmDevice = device;
BluetoothSocket tmp = null;
// Get a BluetoothSocket for a connection with the
// given BluetoothDevice
if (ConnectingMethod == 2) {
try {
Method m = device.getClass().getMethod("createRfcommSocket", new Class[] { int.class });
tmp = (BluetoothSocket) m.invoke(device, 1);
} catch (Exception e) {
try {
tmp = device.createRfcommSocketToServiceRecord(SerialPortServiceClass_UUID);
} catch (IOException e1) {
Log.e(TAG, "createRfcommSocketToServiceRecord failed", e1);
}
}
} else {
try {
tmp = device.createRfcommSocketToServiceRecord(SerialPortServiceClass_UUID);
} catch (IOException e1) {
Log.e(TAG, "createRfcommSocketToServiceRecord failed", e1);
}
}
mmSocket = tmp;
}
public void run() {
Log.i(TAG, "BEGIN mConnectThread");
setName("ConnectThread");
// Always cancel discovery because it will slow down a connection
if (mAdapter.isDiscovering()) {
Log.i(TAG, "cancelDiscovery");
mAdapter.cancelDiscovery();
}
// Make a connection to the BluetoothSocket
try {
// This is a blocking call and will only return on a
// successful connection or an exception
Log.i(TAG, "trying to connect");
mmSocket.connect();
Connected = true;
Log.i(TAG, "BT connection established, data transfer link open.");
} catch (IOException e) {
connectionFailed();
// Close the socket
try {
mmSocket.close();
} catch (IOException e2) {
Log.e(TAG, "unable to close() socket during connection failure", e2);
}
return;
}
// Reset the ConnectThread because we're done
synchronized (this) {
mConnectThread = null;
}
// Start the connected thread
connected(mmSocket, mmDevice);
}
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) {
Log.e(TAG, "close() of connect socket failed", e);
}
}
}
/**
* This thread runs during a connection with a remote device. It handles all
* incoming and outgoing transmissions.
*/
private class ConnectedThread extends Thread {
private final BluetoothSocket mmSocket;
public ConnectedThread(BluetoothSocket socket) {
Log.i(TAG, "create ConnectedThread");
mmSocket = socket;
InputStream tmpIn = null;
OutputStream tmpOut = null;
// Get the BluetoothSocket input and output streams
try {
Log.i(TAG, "Geting Streams..");
tmpIn = socket.getInputStream();
tmpOut = socket.getOutputStream();
Log.i(TAG, "Streams OK");
} catch (IOException e) {
Log.e(TAG, "Geting Streams failed", e);
}
mmInStream = tmpIn;
mmOutStream = tmpOut;
}
public void run() {
Log.i(TAG, "BEGIN mConnectedThread");
byte[] buffer = new byte[1024];
int bytes;
// Keep listening to the InputStream while connected
while (true) {
try {
// Read from the InputStream
bytes = mmInStream.read(buffer);
for (int i = 0; i < bytes; i++)
fifo.put(Integer.valueOf(buffer[i]));
// Send the obtained bytes to the UI Activity
mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer).sendToTarget();
// String a = buffer.toString();
} catch (IOException e) {
Log.e(TAG, "disconnected", e);
connectionLost();
break;
}
}
}
/**
* Write to the connected OutStream.
*
* @param buffer
* The bytes to write
*/
public void write(byte[] buffer) {
try {
mmOutStream.write(buffer);
// Share the sent message back to the UI Activity
// mHandler.obtainMessage(BlueTerm.MESSAGE_WRITE, buffer.length,
// -1, buffer).sendToTarget();
} catch (IOException e) {
Log.e(TAG, "Exception during write", e);
}
}
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) {
Log.e(TAG, "close() of connect socket failed", e);
}
}
}
// //////////////////////////////////////////////////////////////////////////
public BT_New(Context context) {
super(context);
if (D)
Log.d(TAG, "BT_New");
mAdapter = BluetoothAdapter.getDefaultAdapter();
if (mAdapter == null) {
// Toast.makeText(context,
// context.getString(R.string.Bluetoothisnotavailable),
// Toast.LENGTH_LONG).show();
return;
}
Enable();
}
@Override
public void Enable() {
if (D)
Log.d(TAG, "Enable BT");
mState = STATE_NONE;
if (!mAdapter.isEnabled()) {
// Toast.makeText(context, "Turning On Bluetooth...",
// Toast.LENGTH_SHORT).show();
mAdapter.enable();
return;
}
start();
}
@Override
public void Connect(String address, int speed) {
if (D)
Log.d(TAG, "Connect()");
BluetoothDevice device = mAdapter.getRemoteDevice(address);
// Toast.makeText(context, context.getString(R.string.Connecting) + " "
// + device.getName(), Toast.LENGTH_LONG).show();
setState(STATE_CONNECTING);
connect(device);
}
@Override
public synchronized boolean dataAvailable() {
return !fifo.isEmpty();
}
@Override
public synchronized byte Read() {
BytesRecieved+=1;
return (byte) (fifo.get() & 0xff);
}
@Override
public synchronized void Write(byte[] arr) {
super.Write(arr);
// Create temporary object
ConnectedThread r;
// Synchronize a copy of the ConnectedThread
synchronized (this) {
if (mState != STATE_CONNECTED)
return;
r = mConnectedThread;
}
// Perform the write unsynchronized
r.write(arr);
}
@Override
public synchronized void Close() {
// Toast.makeText(context, "Disconnecting...",
// Toast.LENGTH_SHORT).show();
if (D)
Log.d(TAG, "Close");
if (mmOutStream != null) {
try {
mmOutStream.flush();
} catch (IOException e) {
Log.e(TAG, "ON PAUSE: Couldn't flush output stream.", e);
}
}
stop();
}
@Override
public synchronized void Disable() {
try {
if (mAdapter.isEnabled())
if (D)
Log.d(TAG, "Disable BT");
mAdapter.disable();
} catch (Exception e) {
// Toast.makeText(context, "Can't dissable BT",
// Toast.LENGTH_LONG).show();
}
}
}