ControlPanel.java

package nasa.main;

import java.util.StringTokenizer;

import nasa.exceptions.InvalidInputException;
import nasa.exceptions.OutOfRangeException;

public class ControlPanel {

 private Rover rover;

 /**
  * Default bounding value for X
  */
 public static int BOUNDS_X = 5;

 /**
  * Default bounding value for Y
  */
 public static int BOUNDS_Y = 5;

 public ControlPanel(String bounds) throws InvalidInputException {
  parse(bounds);
  rover = new Rover(this);
 }

 private void parse(String bounds) throws InvalidInputException {

  StringTokenizer tokens = new StringTokenizer(bounds);

  if (tokens.hasMoreTokens()) {

   try {
    BOUNDS_X = Integer.parseInt(tokens.nextToken());

    BOUNDS_Y = Integer.parseInt(tokens.nextToken());
   } catch (NumberFormatException e) {
    throw new InvalidInputException("Invalid bounding values");
   }
  }

  if (BOUNDS_X <= 0 || BOUNDS_Y <= 0) {
   throw new InvalidInputException(
     "Bounding values should be greater than or equal to 1");
  }

 }

 public void setRoverPos(Heading heading) {
  rover.setCurrentHeading(heading);
 }

 public Heading getRoverPos() {
  return rover.getCurrentHeading();
 }

 public void setData(String data) throws InvalidInputException,
   OutOfRangeException {
  rover.setData(data);
 }

}