Android Open Source - Common-Alerting-Protocol-Compliant-Emergency-Warning-App-For-Android-Using-AMQP Alert Received Callback

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package in.ac.iitd.cse.iuatc.ews;
//w  ww. j  a  v  a 2 s. c o  m
import java.io.IOException;
import java.util.concurrent.locks.Lock;

import oasis.names.tc.emergency.cap._1.Alert;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.support.v4.app.NotificationCompat;
import android.util.Log;

public class AlertReceivedCallback implements IRabbitMQConsumerCallback {

  private static final String TAG = "Rabbit";

  private Context context;
  private EwsApplication ewsApplication;

  public AlertReceivedCallback(Context context) {
    this.context = context;
    this.ewsApplication = (EwsApplication)context.getApplicationContext();
  }

  @Override
  public void messageReceived(byte[] bytes) {
    try {
      Alert cap =(Alert)Utils.deserialize(bytes);
      handleCAPMessage(cap);
    } catch (ClassNotFoundException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }    
  }

  private void handleCAPMessage(Alert cap) {
    
    SimpleAlert simpleAlert = new SimpleAlert(cap);

    Lock lock = ewsApplication.getLock();    
    if(!lock.tryLock()) {
      do {
        try { Thread.sleep(100);} catch (InterruptedException e) { }
      } while (!lock.tryLock());
    }
        
    try {
      ewsApplication.getDataBaseHandler().insert(Utils.serialize(simpleAlert));
    } catch (IOException e) {Log.e(TAG, "insertion to database failed", e);}

    if (ewsApplication.alertListFragment != null) {
      ewsApplication.alertListFragment.addAlert(simpleAlert);
    }    
    lock.unlock();
    
    createNotification("EWS Notification", "Warning from "
        + cap.getSender());
    
  }

  private void createNotification(String contentTitle, String contentText) {
    long[] vibrationPattern = { 0, 1000, 500, 1000, 500, 1000 };
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
        context).setContentTitle(contentTitle).setContentText(contentText)
        .setVibrate(vibrationPattern).setAutoCancel(true)
        .setSmallIcon(R.drawable.ic_launcher);

    Uri audioURI = RingtoneManager
        .getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    mBuilder.setSound(audioURI);

    
    Intent resultIntent = new Intent(context, MainActivity.class);

    PendingIntent resultPendingIntent = PendingIntent.getActivity(context, 0,
        resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);


    mBuilder.setContentIntent(resultPendingIntent);

    int mNotificationId = 001;
    NotificationManager mNotifyMgr = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    mNotifyMgr.notify(mNotificationId, mBuilder.build());
  }
}

Java Source Code List

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