UserNumberBean.java

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package guessnumber;

import java.text.MessageFormat;
import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.io.Serializable;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.inject.Named;
import javax.enterprise.context.SessionScoped;

/**
 * <p>This bean is used to track the user's guesses.</p>
 */
@Named
@SessionScoped
@SuppressWarnings("unused")
public class UserNumberBean implements Serializable {

    private static final long serialVersionUID = 7288057381787349138L;
    private static final Logger LOGGER = Logger.getLogger("guessnumber");
    

    // ----------------------------------------------------- Injected Properties


    @Resource(name="maximum")
    private Integer maximum;

    @Resource(name="minimum")
    private Integer minimum;


    // -------------------------------------------------------------- Properties

    private enum Response {
        Correct("Yay! You got it!"),
        Larger("Sorry, {0} is incorrect.  Try a larger number."),
        Smaller("Sorry, {0} is incorrect. Try a smaller number.");

        private String msg;
        Response(String msg) {
            this.msg = msg;
        }

        String getMessage(Object... params) {
            return MessageFormat.format(msg, params);
        }
    }

    private Integer userNumber;
    private int randomInt;
    private String greeting;


    // ---------------------------------------------------------- Public Methods

    public String getGreeting() {
        return greeting;
    }

    public void setUserNumber(Integer userNumber) {
        this.userNumber = userNumber;
    }

    public Integer getUserNumber() {
        return userNumber;
    }

    public Integer getMinimum() {
        return minimum;
    }

    public Integer getMaximum() {
        return maximum;
    }

    public String getResponse() {

        int comp = userNumber.compareTo(randomInt);
        if (comp == 0) {
            return Response.Correct.getMessage();
        } else if (comp < 0) {
            return Response.Larger.getMessage(userNumber);
        } else {
            return Response.Smaller.getMessage(userNumber);
        }

    }


    // --------------------------------------------------------- Private Methods


    @SuppressWarnings({"UnusedDeclaration"})
    @PostConstruct
    private void construct() {

        Random random = new Random();
        // Pick a number between minimum and maximum, inclusive
        randomInt = random.nextInt((maximum - minimum) + 1 ) + minimum;
        if (LOGGER.isLoggable(Level.INFO)) {
            LOGGER.log(Level.INFO,
                       MessageFormat.format("Duke''s number: {0}", randomInt));
        }

        greeting = "Hi!  My name is Duke.  I'm thinking of a number between "
                   + minimum
                   + " and "
                   + maximum
                   + ".  Can you guess it?";

    }

}