Java Projects - Second Edition

The MastermindHandler class

We have already started the listing of the MastermindHandler class and, since this class is more than a hundred lines, I will not include it here as a whole. The most important method of this class is handle:

public void handle(HttpServletRequest request,
                   HttpServletResponse response)
        throws ServletException, IOException {

    Game game = buildGameFromRequest(request);
    Guess newGuess = guesser.guess();
    response.setContentType("text/html");
    PrintWriter out = response.getWriter();
    if (game.isFinished() || newGuess == Guess.none) {
        displayGameOver(out);
    } else {
        log.debug("Adding new guess {} to the game", newGuess);
        game.addGuess(newGuess, 0, 0);
        displayGame(out);
    }
    bodyEnd(out);
}

We perform three steps. Step 1 is creating ...