/*
* Copyright (c) 2002 Sun Microsystems, Inc. All rights reserved. U.S.
* Government Rights - Commercial software. Government users are subject
* to the Sun Microsystems, Inc. standard license agreement and
* applicable provisions of the FAR and its supplements. Use is subject
* to license terms.
*
* This distribution may include materials developed by third parties.
* Sun, Sun Microsystems, the Sun logo, Java and J2EE are trademarks
* or registered trademarks of Sun Microsystems, Inc. in the U.S. and
* other countries.
*
* Copyright (c) 2002 Sun Microsystems, Inc. Tous droits reserves.
*
* Droits du gouvernement americain, utilisateurs gouvernementaux - logiciel
* commercial. Les utilisateurs gouvernementaux sont soumis au contrat de
* licence standard de Sun Microsystems, Inc., ainsi qu'aux dispositions
* en vigueur de la FAR (Federal Acquisition Regulations) et des
* supplements a celles-ci. Distribue par des licences qui en
* restreignent l'utilisation.
*
* Cette distribution peut comprendre des composants developpes par des
* tierces parties. Sun, Sun Microsystems, le logo Sun, Java et J2EE
* sont des marques de fabrique ou des marques deposees de Sun
* Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
*/
package servlets;
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("<html>" +
"<head><title>" + messages.getString("TitleBookDescription") + "</title></head>");
// 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("<h2>" + bd.getTitle() + "</h2>" +
" " + messages.getString("By") + " <em>" + bd.getFirstName() + " " +
bd.getSurname() + "</em> " +
"(" + bd.getYear() + ")<br> <br>" +
"<h4>" + messages.getString("Critics")+ "</h4>" +
"<blockquote>" + bd.getDescription() +
"</blockquote>" +
"<h4>" + messages.getString("Price") + c.getFormat() + "</h4>" +
"<p><strong><a href=\"" +
response.encodeURL(request.getContextPath() + "/bookcatalog?bookId=" + bookId) +
"\">" + messages.getString("CartAdd") + "</a> " +
"<a href=\"" +
response.encodeURL(request.getContextPath() + "/bookcatalog") + "\">" + messages.getString("ContinueShopping") + "</a></p></strong>");
} catch (BookNotFoundException ex) {
response.resetBuffer();
throw new ServletException(ex);
}
}
out.println("</body></html>");
out.close();
}
public String getServletInfo() {
return "The BookDetail servlet returns information about" +
"any book that is available from the bookstore.";
}
}