import java.util.*;

/**
 * This class exemplifies what an application would look like if it used
 * the MobileClient class to provide location awareness to a device.
 * Besides constructing a new MobileClient object, the most important
 * part of the TestApp class is the roomChanged method, which is called
 * by the MobileClient class when there has been a change in room data.
 * The object received by the roomChanged method is a HashMap, which
 * maps room-identifying strings to relative magnitudes.  Higher
 * magnitudes represent a greater confidence in the room identified the
 * string key.  This test application simply prints out the room
 * distribution magnitudes, but other applications can use this
 * information as necessary.
 *
 * @author Chris Palistrant
 * @author Tony Offer
 * @version 1.0
 */
public class TestApp implements LocationTracker {

    private MobileClient mc = null;
	
    public TestApp(boolean debug) {
        mc = new MobileClient(this, debug);
    }

    /**
     * This method is called by the Mobile Client class with a HashMap
     * containing room strings and their associated relative confidence
     * magnitudes.  The TestApp class simply displays these magnitudes.
     *
     * @param distribution    The map of room-identifying strings to
     *                        associated relative confidence magnitudes.
     */
    public void roomChanged(HashMap distribution) {
	Iterator I = distribution.keySet().iterator();
	System.out.println("");
	while (I.hasNext()) {
	    String room = (String) I.next();
            System.out.println(room + ": " + 
			       ((Integer) distribution.get
				(room)).intValue());
	}
	System.out.println("");
    }

    /**
     * Create a new TestApp object, which in turn creates a new
     * MobileClient object.  Once a MobileClient is created, updates
     * containing room information periodically come in to this class.
     * Running TestApp with the option "-d" provides extra debugging
     * output.
     */
    public static void main (String [] args) {
        TestApp test; 
	if (args.length > 0 && args[0].equals("-d"))
		test = new TestApp(true);
	else test = new TestApp(false);
    }
}