Android Open Source - CopresenceDataCollector Bluetooth Worker

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Back to project page CopresenceDataCollector.
License

The source code is released under:
Copyright (c) 2014, Xiang Gao All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Re...
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Java Source Code

package org.sesy.coco.datacollector;
/* w  w  w.jav  a2 s .com*/
import org.apache.log4j.Level;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.sesy.coco.datacollector.database.Entry;
import org.sesy.coco.datacollector.log.ConfigureLog4J;

import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.os.SystemClock;
import android.util.Log;

public class BluetoothWorker extends Service {

  //private HashMap<String,Integer> btDevices;
  private int scanCounter;
  
  private BluetoothAdapter btAdapter;
  private BroadcastReceiver btReceiver;
  //private CountDownTimer timer;
  
  //private int gt, ob;
  Logger log;
  
  @Override
  public void onCreate(){
    super.onCreate();
    
    log = Logger.getLogger(BluetoothWorker.class);  
        ConfigureLog4J.configure(this);  
        LogManager.getRootLogger().setLevel((Level)Level.DEBUG);   
        //log.info("onCreate");            
        
  }
  
  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
    WorkerService.btTask = true;
    //gt = intent.getIntExtra("gt", 0);
    //ob = intent.getIntExtra("ob", 0);
    
     WorkerService.btList.clear();
    /*Entry ecobj = new Entry();
    ecobj.setTS(System.currentTimeMillis());
    ecobj.setGT(gt);
    ecobj.setOB(ob);
    ecobj.setMT(Constants.STATUS_SENSOR_BT);
    Gson gson = new Gson();
    String meta = gson.toJson(ecobj);
    WorkerService.btList.add(meta);*/
    
    scanCounter = 0;
    
    log.info("Subtask Bluetoth");
      //btDevices = new HashMap<String,Integer>();
      IntentFilter btFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
      btFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
      btFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
    
      btReceiver = new BroadcastReceiver(){
        
        @Override
        public void onReceive(Context context, Intent intent) {
          long ts = SystemClock.elapsedRealtime() - WorkerService.metaTS;
          log.info("Subtask Bluetooth received");
          String action = intent.getAction();
          
          if(BluetoothDevice.ACTION_FOUND.equals(action)) {            
          
          //Gson gson = new Gson();
            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
            //if(!btDevices.containsKey(device.getAddress())){
              int rssi = intent.getShortExtra(BluetoothDevice.EXTRA_RSSI, Short.MIN_VALUE);  //RSSI in dBm
              //btDevices.put(device.getAddress(), rssi);
              BTDevice dv = new BTDevice(device.getName(), device.getAddress(), rssi);
              //String fp = gson.toJson(dv);
              String fp = dv.toString();
              Log.i("BT FP", "Subtask Bluetooth bluetooth_fp: " + fp);
              Entry eobj = new Entry();
              //eobj.setOB(ob);
            eobj.setTS(ts);
            //eobj.setGT(gt);
            eobj.setMT(Constants.STATUS_SENSOR_BT);
            //eobj.setACC(AccListener.acc);
            eobj.setFP(fp);
            //String bt = gson.toJson(eobj);
                WorkerService.btList.add(eobj);
            //}

          }else if(BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) {
          Log.i("subtask", "bluetooth discovery started.");
          BTDevice dv = new BTDevice(btAdapter.getName(), btAdapter.getAddress(), Constants.BT_LOCAL_RSSI);
          String fp = dv.toString();
          Entry eobj = new Entry();
            //eobj.setOB(ob);
          eobj.setTS(ts);
          //eobj.setGT(gt);
          eobj.setMT(Constants.STATUS_SENSOR_BT);
          eobj.setFP(fp);
              WorkerService.btList.add(eobj);
        }else if(BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
          Log.i("subtask", "bluetooth discovery finished.");
          if(scanCounter++ < 9){
              
            btAdapter.startDiscovery();
              log.info("Subtask Bluetooth scan started "+scanCounter);
          }else{
            if (btAdapter != null) {
              btAdapter.cancelDiscovery();
            }
            if(btReceiver != null){
              unregisterReceiver(btReceiver);
            }
            log.info("BT scan finished");
            WorkerService.btTaskDone = true;
            stopSelf();
          }
        }
          
        }
      };
    
    /*timer = new CountDownTimer(65*1000, 15000) {

      @Override
      public void onFinish() {
        // TODO Auto-generated method stub
        if (btAdapter != null) {
          btAdapter.cancelDiscovery();
        }
        if(btReceiver != null){
          unregisterReceiver(btReceiver);
        }
        log.info("BT scan finished");
        WorkerService.btTaskDone = true;
        stopSelf();
      }

      @Override
      public void onTick(long millisUntilFinished) {
        // TODO Auto-generated method stub
        scanCounter++;
        btAdapter.startDiscovery();
          log.info("Subtask Bluetooth scan started "+scanCounter);
      }
      
    };*/
    
    registerReceiver(btReceiver, btFilter);      
    // Getting the Bluetooth adapter
      btAdapter = BluetoothAdapter.getDefaultAdapter();
      btAdapter.startDiscovery();
      //timer.start();
      log.info("Subtask Bluetooth scan started "+scanCounter);
    
    
    return START_NOT_STICKY;    
  }
  
  @Override
  public IBinder onBind(Intent arg0) {
    // TODO Auto-generated method stub
    return null;
  }
  
  class BTDevice{
    private String Name;
    private String Addr;
    private int RSSI;
    
    public BTDevice(String name, String addr, int rssi){
      this.Name = name;
      this.Addr = addr;
      this.RSSI = rssi;
    }
    
    public String toString(){
      return this.Addr + "#" + this.Name + "#" + String.valueOf(this.RSSI);
    }
  }

}
Java Source Code List
