Android Open Source - CopresenceDataCollector Wifi 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;
// www.  j  a  v  a 2s .  c  om
import java.util.HashMap;
import java.util.List;

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 com.google.gson.Gson;

import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiManager;
import android.os.CountDownTimer;
import android.os.IBinder;
import android.os.SystemClock;
import android.util.Log;

public class WifiWorker extends Service {

  private WifiManager wifiManager;  
  private BroadcastReceiver wifiReceiver;
  private List<ScanResult> wifiList;
  //private HashMap<String,Integer> wifiAPs;
  private int scanCounter;
  
  //private CountDownTimer timer;
  
  //private int gt, ob;
  Logger log;
  
  @Override
  public void onCreate(){
    super.onCreate();
    
    log = Logger.getLogger(WifiWorker.class);  
        ConfigureLog4J.configure(this);  
        LogManager.getRootLogger().setLevel((Level)Level.DEBUG);   
        //log.info("onCreate");            
        
  }
  
  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
    WorkerService.wifiTask = true;
    //gt = intent.getIntExtra("gt", 0);
    //ob = intent.getIntExtra("ob", 0);
    
     WorkerService.wifiList.clear();
    /*Entry ecobj = new Entry();
    ecobj.setTS(System.currentTimeMillis());
    ecobj.setGT(gt);
    ecobj.setOB(ob);
    ecobj.setMT(Constants.STATUS_SENSOR_WIFI);
    Gson gson = new Gson();
    String meta = gson.toJson(ecobj);
    WorkerService.wifiList.add(meta);*/
    
    scanCounter = 0;
    
    log.info("Subtask Wifi");
      //wifiAPs = new HashMap<String,Integer>();
      wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
      IntentFilter wifiFilter = new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);
    
      wifiReceiver = new BroadcastReceiver(){
        
      @Override
      public void onReceive(Context context, Intent intent) {
        long ts = SystemClock.elapsedRealtime() - WorkerService.metaTS;
        log.info("Subtask wifi received");          
        
        
        wifiList = wifiManager.getScanResults();
        for (ScanResult s: wifiList) {
          //if(!wifiAPs.containsKey(s.BSSID)){
            Entry eobj = new Entry();
            //wifiAPs.put(s.BSSID, s.level);
            //Gson gson = new Gson();
            WifiAP w = new WifiAP(s.BSSID, s.SSID, s.capabilities, s.frequency, s.level);
            //String fp = gson.toJson(w);
            String fp = w.toString();
            Log.i("Wifi FP", "Subtask wifi_fp: " + fp);
            //eobj.setOB(ob);
            eobj.setTS(ts);
            //eobj.setGT(gt);
            eobj.setMT(Constants.STATUS_SENSOR_WIFI);
            //eobj.setACC(AccListener.acc);
            eobj.setFP(fp);
            //String wifi = gson.toJson(eobj);
                WorkerService.wifiList.add(eobj);
          //}
        }
        
        if(scanCounter++ < 9){
          wifiManager.startScan();
          log.info("Subtask Wifi scan started "+scanCounter);
        }else{
          if(wifiReceiver != null)
            unregisterReceiver(wifiReceiver);
          log.info("Wifi scan finished");
          WorkerService.wifiTaskDone = true;
          stopSelf();
        }
      }
    };
    
    /*timer = new CountDownTimer(32*1000, 3000) {

      @Override
      public void onFinish() {
        // TODO Auto-generated method stub
        if(wifiReceiver != null)
          unregisterReceiver(wifiReceiver);
        log.info("Wifi scan finished");
        WorkerService.wifiTaskDone = true;
        stopSelf();
      }

      @Override
      public void onTick(long millisUntilFinished) {
        // TODO Auto-generated method stub
        scanCounter++;
        wifiManager.startScan();
        log.info("Subtask Wifi scan started "+scanCounter);
      }
      
    };*/
    
    registerReceiver(wifiReceiver, wifiFilter);
    wifiManager.startScan();
    //timer.start();
    log.info("Subtask Wifi scan started "+scanCounter);
    
    
    return START_NOT_STICKY;    
  }
  
  @Override
  public IBinder onBind(Intent intent) {
    // TODO Auto-generated method stub
    return null;
  }
  
  class WifiAP{
    private String BSSID;
    private String SSID;
    private String capabilities;
    private int frequency;
    private int level;
    //private long timestamp;
    
    public WifiAP(String bssid, String ssid, String cap, int freq, int level){
      this.BSSID = bssid;
      this.SSID = ssid;
      this.capabilities = cap;
      this.frequency = freq;
      this.level = level;
      //this.timestamp = ts;
    }
    
    public String toString(){
      return this.BSSID + "#" + this.SSID + "#" + this.capabilities + "#" + String.valueOf(this.frequency) +"#" + String.valueOf(this.level);
    
    }
  }

}

Java Source Code List