X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altosdroid%2Fsrc%2Forg%2Faltusmetrum%2FAltosDroid%2FTelemetryService.java;h=a1b1915a9fefd4b08d9cf248238ecc7e166fd28c;hp=95b655c2f7d9bfaeca1ea59ef4d551659fe4b1a3;hb=ed653a1e6dc8884cb171af1406fd0999ef125a4d;hpb=372840b4ebfd3da3cd713b6bc6a8ffc8cd6b6b8c diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java index 95b655c2..a1b1915a 100644 --- a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java +++ b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java @@ -17,43 +17,159 @@ 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 { + private static final String TAG = "TelemetryService"; + private static final boolean D = true; -public class TelemetryService extends Service { + static final int MSG_REGISTER_CLIENT = 1; + static final int MSG_UNREGISTER_CLIENT = 2; + 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; - /** - * Class for clients to access. Because we know this service always - * runs in the same process as its clients, we don't need to deal with - * IPC. - */ - public class TelemetryBinder extends Binder { - TelemetryService getService() { - return TelemetryService.this; - } - } // 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 mClients = new ArrayList(); // Keeps track of all current registered clients. + 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 BluetoothDevice device = null; + private AltosBluetooth mAltosBluetooth = null; + private int state = STATE_NONE; + LinkedBlockingQueue telem; + + // Handler of incoming messages from clients. + static class IncomingHandler extends Handler { + private final WeakReference service; + IncomingHandler(TelemetryService s) { service = new WeakReference(s); } + + @Override + public void handleMessage(Message msg) { + TelemetryService s = service.get(); + switch (msg.what) { + case MSG_REGISTER_CLIENT: + 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: + s.mClients.remove(msg.replyTo); + if (D) Log.d(TAG, "Client unbound from service"); + break; + case MSG_CONNECT: + if (D) Log.d(TAG, "Connect command received"); + 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 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 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(); + setState(STATE_READY); } @Override @@ -86,6 +202,8 @@ public class TelemetryService extends Service { @Override public void onDestroy() { + // Stop the bluetooth Comms threads + stopAltosBluetooth(); // Demote us from the foreground, and cancel the persistent notification. stopForeground(true); @@ -96,11 +214,8 @@ public class TelemetryService extends Service { @Override public IBinder onBind(Intent intent) { - return mBinder; + return mMessenger.getBinder(); } - // This is the object that receives interactions from clients. See - // RemoteService for a more complete example. - private final IBinder mBinder = new TelemetryBinder(); }