/*
*
* Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY
* DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR
* RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR
* ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE
* FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT,
* SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF
* THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
*
*/
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import cart.ShoppingCart;
import database.*;
import exception.*;
/**
* An HTTP servlet that responds to the POST method of the HTTP protocol.
* The Receipt servlet updates the book database inventory, invalidates the user session,
* thanks the user for the order. */
public class ReceiptServlet extends HttpServlet {
private BookDB bookDB;
public void init() throws ServletException {
bookDB =
(BookDB)getServletContext().getAttribute("bookDB");
if (bookDB == null)
throw new UnavailableException("Couldn't get database.");
}
public void destroy() {
bookDB = null;
}
public void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException
{
boolean orderCompleted = true;
// Get the user's session and shopping cart
HttpSession session = request.getSession(true);
ResourceBundle messages = (ResourceBundle)session.getAttribute("messages");
ShoppingCart cart =
(ShoppingCart)session.getAttribute("cart");
if (cart == null) {
cart = new ShoppingCart();
session.setAttribute("cart", cart);
}
// Update the inventory
try {
bookDB.buyBooks(cart);
} catch (OrderException e) {
System.err.println(e.getMessage());
orderCompleted = false;
}
// Payment received -- invalidate the session
session.invalidate();
// set content type header before accessing the Writer
response.setContentType("text/html");
response.setBufferSize(8192);
PrintWriter out = response.getWriter();
// then write the response
out.println("" +
"" + messages.getString("TitleReceipt") + "" );
// Get the dispatcher; it gets the banner to the user
RequestDispatcher dispatcher =
getServletContext().getRequestDispatcher("/banner");
if (dispatcher != null)
dispatcher.include(request, response);
if (orderCompleted)
out.println("" + messages.getString("ThankYou") +
request.getParameter("cardname") + ".");
else
out.println("" + messages.getString("OrderError"));
out.println("
" + messages.getString("ContinueShopping") + " " +
"