/* * * 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 database.*; import cart.*; import util.Currency; import exception.*; /** * This is a simple example of an HTTP Servlet. It responds to the GET * method of the HTTP protocol. */ public class BookDetailsServlet 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 doGet (HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session = request.getSession(true); ResourceBundle messages = (ResourceBundle)session.getAttribute("messages"); // set headers and buffer size before accessing the Writer response.setContentType("text/html"); response.setBufferSize(8192); PrintWriter out = response.getWriter(); // then write the response out.println("" + "" + messages.getString("TitleBookDescription") + ""); // Get the dispatcher; it gets the banner to the user RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/banner"); if (dispatcher != null) dispatcher.include(request, response); //Get the identifier of the book to display String bookId = request.getParameter("bookId"); if (bookId != null) { // and the information about the book try { BookDetails bd = bookDB.getBookDetails(bookId); Currency c = (Currency)session.getAttribute("currency"); if (c == null) { c = new Currency(); c.setLocale(request.getLocale()); session.setAttribute("currency", c); } c.setAmount(bd.getPrice()); //Print out the information obtained out.println("

" + bd.getTitle() + "

" + " " + messages.getString("By") + " " + bd.getFirstName() + " " + bd.getSurname() + "     " + "(" + bd.getYear() + ")
 
" + "

" + messages.getString("Critics")+ "

" + "
" + bd.getDescription() + "
" + "

" + messages.getString("Price") + c.getFormat() + "

" + "

" + messages.getString("CartAdd") + "   " + "" + messages.getString("ContinueShopping") + "

"); } catch (BookNotFoundException ex) { response.resetBuffer(); throw new ServletException(ex); } } out.println(""); out.close(); } public String getServletInfo() { return "The BookDetail servlet returns information about" + "any book that is available from the bookstore."; } }