public static Mower getMower(String mowerLine) throws MowerInputFormatException {
if (mowerLine == null) throw new MowerInputFormatException("Invalid Mower format");
String[] mowerConfig = mowerLine.split(" ");
if (mowerConfig.length != 3) throw new MowerInputFormatException("Invalid Mower format");
Mower mower = new Mower();
try {
mower.setX(Integer.parseInt(mowerConfig[0]));
mower.setY(Integer.parseInt(mowerConfig[1]));
mower.setCardinal(Cardinal.cardinalFormChar(mowerConfig[2].charAt(0)));
} catch (NumberFormatException e) {
throw new MowerInputFormatException("Invalid Mower format", e);
} catch (MowerInputFormatException e) {
throw e;
}
return mower;
}
@Override
public Mower execute(Mower mower) {
mower.setCardinal(mower.getCardinal().left());
return mower;
}