Android Open Source - ItopMobile Alarm Receiver

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License

The source code is released under:

GNU General Public License

Java Source Code

// Copyright (C) 2011-2013 ITOMIG GmbH
////from w ww.j a v  a2s  . com
//   This file is part of iTopMobile.
//
//   iTopMobile is free software; you can redistribute it and/or modify  
//   it under the terms of the GNU General Public License as published by
//   the Free Software Foundation, either version 3 of the License, or
//   (at your option) any later version.
//
//   iTopMobile is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//   GNU General Public License for more details.
//
//   You should have received a copy of the GNU General Public License
//   along with iTopMobile. If not, see <http://www.gnu.org/licenses/>

package de.itomig.itoplib;

import android.content.BroadcastReceiver;
import static de.itomig.itoplib.ItopConfig.TAG;
import static de.itomig.itoplib.ItopConfig.debug;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.os.PowerManager;
import android.util.Log;

/**
 * receives the recurring alarm which does the BackgroundCheck
 * every X minutes, checks for working network before actually
 * requesting http data
 * 
 * @author Michael Blank
 * @copyriht
 *
 */
public class AlarmReceiver extends BroadcastReceiver {
  
  private static PowerManager.WakeLock wakeLock = null;
  private static final String LOCK_TAG = "de.itomig.itoplib";
  
  public static synchronized void acquireLock(Context context) {
    if (wakeLock == null) {
      PowerManager mgr = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
      wakeLock = mgr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, LOCK_TAG);
      wakeLock.setReferenceCounted(true);
    }
    wakeLock.acquire();
    if (debug) Log.i(TAG,"BG AlarmReceiver: aquired wakeLock" );
  }
  
  public static void releaseLock() {
    if ((wakeLock != null) && (wakeLock.isHeld())) {
        wakeLock.release();
        Log.i(TAG,"BG AlarmReceiver: released wakeLock" );
    }
    
  }

  @Override
  public void onReceive(Context context, Intent intent) {
        if (isNetworkConnected(context)) {
          Log.i(TAG,"BG AlarmReceiver: onReceive, starting BackgroundCheck service");
          acquireLock(context);
          Intent serviceIntent = new Intent(context, BackgroundCheck.class);
          context.startService(serviceIntent); 
          
          // update person and org info
          PersonAndOrgsLookup pl = new PersonAndOrgsLookup();
          pl.update();
        } else {
          // do nothing
          Log.i(TAG,"BG: no network connection.");
        }
          
  }
 
  
  private boolean isNetworkConnected(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

    if (cm.getActiveNetworkInfo() != null && cm.getActiveNetworkInfo().isAvailable() && cm.getActiveNetworkInfo().isConnected()) {
      return true;
    } else {
      if (debug) Log.i(TAG,"BG: no network connection.");
      return false;
    }
  }

}

Java Source Code List

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