package org.altusmetrum.AltosDroid;
+import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.concurrent.LinkedBlockingQueue;
import android.app.Notification;
-import android.app.NotificationManager;
+//import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.bluetooth.BluetoothDevice;
import android.content.Intent;
-//import android.os.Binder;
+//import android.os.Bundle;
import android.os.IBinder;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
+import android.os.RemoteException;
import android.util.Log;
import android.widget.Toast;
-// Need the following import to get access to the app resources, since this
-// class is in a sub-package.
-//import org.altusmetrum.AltosDroid.R;
-
import org.altusmetrum.AltosLib.*;
public class TelemetryService extends Service {
static final int MSG_REGISTER_CLIENT = 1;
static final int MSG_UNREGISTER_CLIENT = 2;
- static final int MSG_CONNECT_TELEBT = 3;
+ static final int MSG_CONNECT = 3;
+ static final int MSG_CONNECTED = 4;
+ static final int MSG_CONNECT_FAILED = 5;
+ static final int MSG_DISCONNECTED = 6;
+
+ public static final int STATE_NONE = 0;
+ public static final int STATE_READY = 1;
+ public static final int STATE_CONNECTING = 2;
+ public static final int STATE_CONNECTED = 3;
// Unique Identification Number for the Notification.
// We use it on Notification start, and to cancel it.
private int NOTIFICATION = R.string.telemetry_service_label;
- private NotificationManager mNM;
+ //private NotificationManager mNM;
ArrayList<Messenger> mClients = new ArrayList<Messenger>(); // Keeps track of all current registered clients.
- final Messenger mMessenger = new Messenger(new IncomingHandler()); // Target we publish for clients to send messages to IncomingHandler.
+ final Handler mHandler = new IncomingHandler(this);
+ final Messenger mMessenger = new Messenger(mHandler); // Target we publish for clients to send messages to IncomingHandler.
// Name of the connected device
- private String mConnectedDeviceName = null;
+ private BluetoothDevice device = null;
private AltosBluetooth mAltosBluetooth = null;
-
+ private int state = STATE_NONE;
LinkedBlockingQueue<AltosLine> telem;
// Handler of incoming messages from clients.
- class IncomingHandler extends Handler {
+ static class IncomingHandler extends Handler {
+ private final WeakReference<TelemetryService> service;
+ IncomingHandler(TelemetryService s) { service = new WeakReference<TelemetryService>(s); }
+
@Override
public void handleMessage(Message msg) {
+ TelemetryService s = service.get();
switch (msg.what) {
case MSG_REGISTER_CLIENT:
- mClients.add(msg.replyTo);
+ s.mClients.add(msg.replyTo);
+ try {
+ msg.replyTo.send(Message.obtain(null, AltosDroid.MSG_DEVNAME, s.device.getName()));
+ msg.replyTo.send(Message.obtain(null, AltosDroid.MSG_STATE_CHANGE, s.state, -1));
+ } catch (RemoteException e) {
+ s.mClients.remove(msg.replyTo);
+ }
if (D) Log.d(TAG, "Client bound to service");
break;
case MSG_UNREGISTER_CLIENT:
- mClients.remove(msg.replyTo);
+ s.mClients.remove(msg.replyTo);
if (D) Log.d(TAG, "Client unbound from service");
break;
- case MSG_CONNECT_TELEBT:
+ case MSG_CONNECT:
if (D) Log.d(TAG, "Connect command received");
- TeleBT_stop();
- TeleBT_start((BluetoothDevice) msg.obj);
+ s.device = (BluetoothDevice) msg.obj;
+ s.startAltosBluetooth();
+ break;
+ case MSG_CONNECTED:
+ if (D) Log.d(TAG, "Connected to device");
+ s.connected();
+ s.mAltosBluetooth.add_monitor(s.telem);
+ break;
+ case MSG_CONNECT_FAILED:
+ if (D) Log.d(TAG, "Connection failed... retrying");
+ s.startAltosBluetooth();
+ break;
+ case MSG_DISCONNECTED:
+ if (D) Log.d(TAG, "Disconnected from " + s.device.getName());
+ s.stopAltosBluetooth();
break;
default:
super.handleMessage(msg);
}
}
- private void TeleBT_stop() {
+ private void sendMessageToClients(Message m) {
+ for (int i=mClients.size()-1; i>=0; i--) {
+ try {
+ mClients.get(i).send(m);
+ } catch (RemoteException e) {
+ mClients.remove(i);
+ }
+ }
+ }
+
+ private void stopAltosBluetooth() {
+ if (D) Log.i(TAG, "Stopping BT");
+ setState(STATE_READY);
if (mAltosBluetooth != null) {
+ if (D) Log.i(TAG, "Closing AltosBluetooth");
mAltosBluetooth.close();
mAltosBluetooth = null;
}
+ device = null;
telem.clear();
}
- private void TeleBT_start(BluetoothDevice d) {
- mAltosBluetooth = new AltosBluetooth(d);
- mAltosBluetooth.add_monitor(telem);
+ private void startAltosBluetooth() {
+ if (mAltosBluetooth == null) {
+ if (D) Log.i(TAG, "Connecting to " + device.getName());
+ mAltosBluetooth = new AltosBluetooth(device, mHandler);
+ setState(STATE_CONNECTING);
+ } else {
+ stopAltosBluetooth();
+ mHandler.sendMessageDelayed(Message.obtain(null, MSG_CONNECT, device), 1000);
+ }
+ }
+
+ private synchronized void setState(int s) {
+ if (D) Log.d(TAG, "setState() " + state + " -> " + s);
+ state = s;
+
+ sendMessageToClients(Message.obtain(null, AltosDroid.MSG_STATE_CHANGE, state, -1));
}
+ private void connected() {
+ sendMessageToClients(Message.obtain(null, AltosDroid.MSG_DEVNAME, device.getName()));
+ setState(STATE_CONNECTED);
+ }
+
+
@Override
public void onCreate() {
// Create a reference to the NotificationManager so that we can update our notifcation text later
- mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
+ //mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
+
+ telem = new LinkedBlockingQueue<AltosLine>();
+ setState(STATE_READY);
}
@Override
public void onDestroy() {
// Stop the bluetooth Comms threads
- TeleBT_stop();
+ stopAltosBluetooth();
// Demote us from the foreground, and cancel the persistent notification.
stopForeground(true);
projects / fw / altos / blobdiff