227 lines
8.8 KiB
Java
227 lines
8.8 KiB
Java
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package com.rubenvandeven.heartbeatstreamer.heartrate;
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import android.app.AlertDialog;
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import android.app.Service;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.net.Uri;
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import android.os.Handler;
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import android.os.HandlerThread;
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import android.os.IBinder;
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import android.os.Looper;
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import android.util.Log;
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import android.view.View;
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import android.widget.Toast;
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import com.dsi.ant.plugins.antplus.pcc.AntPlusHeartRatePcc;
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import com.dsi.ant.plugins.antplus.pcc.defines.DeviceState;
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import com.dsi.ant.plugins.antplus.pcc.defines.EventFlag;
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import com.dsi.ant.plugins.antplus.pcc.defines.RequestAccessResult;
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import com.dsi.ant.plugins.antplus.pccbase.AntPluginPcc;
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import com.dsi.ant.plugins.antplus.pccbase.AsyncScanController;
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import com.dsi.ant.plugins.antplus.pccbase.PccReleaseHandle;
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import com.koushikdutta.async.future.Future;
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import com.koushikdutta.async.http.AsyncHttpClient;
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import com.koushikdutta.async.http.WebSocket;
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import com.rubenvandeven.heartbeatstreamer.R;
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import java.math.BigDecimal;
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import java.text.DecimalFormat;
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import java.text.DecimalFormatSymbols;
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import java.util.EnumSet;
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public class HeartRateService extends Service {
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private static final String TAG = HeartRateService.class.getSimpleName();
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public static final String BROADCAST_MONITOR_CONNECTED = "com.rubenvandeven.heartbeat.broadcast.monitor_started";
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public static final String BROADCAST_MONITOR_DISCONNECTED = "com.rubenvandeven.heartbeat.broadcast.monitor_stopped";
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public static final String BROADCAST_MONITOR_UNKNOWN = "com.rubenvandeven.heartbeat.broadcast.monitor_unknown";
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public static final String BROADCAST_MONITOR_UPDATE = "com.rubenvandeven.heartbeat.broadcast.monitor_update";
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public static final String BROADCAST_SOCKET_SENT = "com.rubenvandeven.heartbeat.broadcast.socket_sent";
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AsyncScanController<AntPlusHeartRatePcc> hrScanCtrl;
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AntPlusHeartRatePcc hrPcc;
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PccReleaseHandle<AntPlusHeartRatePcc> releaseHandle;
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String lastMsg = "";
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public static boolean isRunning = false;
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@Override
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public void onCreate() {
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isRunning = true;
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requestAccessToPcc();
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}
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/**
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* Start main thread, request location updates, start synchronization.
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*
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* @param intent Intent
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* @param flags Flags
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* @param startId Unique id
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* @return Always returns START_STICKY
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*/
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@Override
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public int onStartCommand(Intent intent, int flags, int startId) {
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Log.i(TAG, "Received start id " + startId + ": " + intent);
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return START_STICKY;
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}
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protected AntPluginPcc.IDeviceStateChangeReceiver stateChangeReceiver =
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new AntPluginPcc.IDeviceStateChangeReceiver()
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{
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@Override
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public void onDeviceStateChange(final DeviceState state)
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{
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if(DeviceState.DEAD.equals(state) || DeviceState.CLOSED.equals(state)) {
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sendBroadcast(new Intent(BROADCAST_MONITOR_DISCONNECTED));
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waitAndReconnect();
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} else if (DeviceState.TRACKING.equals(state)) {
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sendBroadcast(new Intent(BROADCAST_MONITOR_CONNECTED));
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} else {
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Intent i = new Intent(BROADCAST_MONITOR_UNKNOWN);
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i.putExtra("status", state.getIntValue());
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sendBroadcast(i);
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}
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}
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};
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protected AntPluginPcc.IPluginAccessResultReceiver<AntPlusHeartRatePcc> resultReceiver =
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new AntPluginPcc.IPluginAccessResultReceiver<AntPlusHeartRatePcc>() {
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//Handle the result, connecting to events on success or reporting failure to user.
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@Override
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public void onResultReceived(AntPlusHeartRatePcc result, RequestAccessResult resultCode,
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DeviceState initialDeviceState) {
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// showDataDisplay("Connecting...");
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switch (resultCode) {
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case SUCCESS:
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connectHr(result);
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break;
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case CHANNEL_NOT_AVAILABLE:
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showNotification("Channel Not Available");
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break;
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case OTHER_FAILURE:
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showNotification("RequestAccess failed. See logcat for details.");
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break;
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case USER_CANCELLED:
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showNotification("Cancelled. Do reset.");
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break;
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case UNRECOGNIZED:
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default:
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showNotification("Unknown error. Do reset.");
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break;
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}
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}
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};
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private void connectHr(AntPlusHeartRatePcc result) {
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hrPcc = result; // keep track of current connection
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hrPcc.subscribeHeartRateDataEvent(new AntPlusHeartRatePcc.IHeartRateDataReceiver()
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{
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@Override
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public void onNewHeartRateData(final long estTimestamp, EnumSet<EventFlag> eventFlags,
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final int computedHeartRate, final long heartBeatCount,
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final BigDecimal heartBeatEventTime, final AntPlusHeartRatePcc.DataState dataState)
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{
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DecimalFormatSymbols otherSymbols = new DecimalFormatSymbols();
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otherSymbols.setDecimalSeparator('.');
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DecimalFormat df = new DecimalFormat("#.##", otherSymbols);
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// Mark heart rate with asterisk if zero detected
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final String textHeartRate = String.valueOf(computedHeartRate)
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+ ((AntPlusHeartRatePcc.DataState.ZERO_DETECTED.equals(dataState)) ? "*" : "");
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// Mark heart beat count and heart beat event time with asterisk if initial value
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final String textHeartBeatCount = String.valueOf(heartBeatCount)
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+ ((AntPlusHeartRatePcc.DataState.INITIAL_VALUE.equals(dataState)) ? "*" : "");
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final String textHeartBeatEventTime = df.format(heartBeatEventTime)
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+ ((AntPlusHeartRatePcc.DataState.INITIAL_VALUE.equals(dataState)) ? "*" : "");
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final String msg = String.format("{\"rate\":\"%s\", \"count\":\"%s\", \"time\":\"%s\"}", textHeartRate, textHeartBeatCount, textHeartBeatEventTime);
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if(msg.contentEquals(lastMsg)) {
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Log.i(TAG, "Skip duplicate");
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return;
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}
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lastMsg = msg;
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sendResult(msg);
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}
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});
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}
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private void sendResult(String msg) {
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Log.d(TAG, "Send: " + msg);
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final String m = msg;
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Future<WebSocket> fws = AsyncHttpClient.getDefaultInstance().websocket("ws://heartbeat.rubenvandeven.com:8888/ws", "my-protocol", new AsyncHttpClient.WebSocketConnectCallback() {
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@Override
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public void onCompleted(Exception ex, final WebSocket webSocket) {
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if (ex != null) {
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ex.printStackTrace();
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// TODO: retry in 30s - ie. after internet loss
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return;
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}
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webSocket.send(m);
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Intent intent = new Intent(BROADCAST_SOCKET_SENT);
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intent.putExtra("msg", m);
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sendBroadcast(intent);
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webSocket.close();
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}
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});
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}
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private void showNotification(String msg) {
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final String m = msg;
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Handler handler = new Handler(Looper.getMainLooper());
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handler.post(new Runnable() {
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@Override
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public void run() {
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Toast.makeText(HeartRateService.this.getApplicationContext(),m,Toast.LENGTH_SHORT).show();
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}
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});
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}
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/**
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* wait to reconnect to dead HR-monitor
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*/
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protected void waitAndReconnect() {
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//TODO:
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Log.d(TAG, "Wait & reconnect");
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requestAccessToPcc();
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}
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/**
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* Requests the ANT+ device
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*/
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protected void requestAccessToPcc()
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{
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if(hrPcc != null) {
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hrPcc.subscribeHeartRateDataEvent(null);
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}
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releaseHandle = AntPlusHeartRatePcc.requestAccess(this, 4818, 0, resultReceiver, stateChangeReceiver);
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}
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@Override
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public IBinder onBind(Intent intent) {
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// TODO: Return the communication channel to the service.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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@Override
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public void onDestroy() {
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if(releaseHandle != null)
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{
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releaseHandle.close();
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}
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isRunning = false;
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super.onDestroy();
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}
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public static boolean isRunning() {
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return isRunning;
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}
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}
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