Logical Sensor Network: An Abstraction of Sensor Data Processing over Multidomain Sensor Network

Listing 4

Source code for construction and update for logical sensor network in Java.

1  public  class MicroForecast  implements  LSNListener, GPSListener{

2 private  LSNClient client;

3 public  MicroForecast(double  lat,   double  lng)   throws  Exception{

4  client =  new  LSNClient(“lsnoperator.org”, 12345, 22345);

5  client.setListener(this);

6  //Create  LSN  instance  on  a  remote  server.

7  client.create(“org.RainForecastNetwork”,“lsn.jar”);

8  //Connect LSN instance on the remote server.

9  client.connect(new  Location(lat, lng));

10 }

11 @Override

12 public  void  dataArrived(LSNDataPacket packet) {

13  //Process data using packet. (Main Logic)

14 }

15 @Override

16 public  void gpsUpdated(double  lat, double  lng) {

17  //Let the remote server know about context update.

18  client.update(new  Location(lat,lng));

19 }

20 }