package com.mediamania.appserver;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.jdo.PersistenceManagerFactory;
import javax.jdo.PersistenceManager;
import javax.jdo.JDOHelper;
import javax.jdo.Extent;
import javax.jdo.JDOException;
import java.util.Properties;
import java.util.Iterator;
import java.io.InputStream;
import java.io.IOException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import com.mediamania.content.Movie;
public class MovieInfo extends HttpServlet {
PersistenceManagerFactory persistenceManagerFactory;
PersistenceManager pm;
public void init() throws ServletException {
try {
ServletContext ctx = getServletContext();
InputStream in = ctx.getResourceAsStream("WEB-INF/pmf.properties");
Properties props = new Properties();
props.load(in);
persistenceManagerFactory =
JDOHelper.getPersistenceManagerFactory(props);
} catch (IOException ex) {
throw new ServletException("Unable to load PMF properties.", ex);
} catch (JDOException ex) {
throw new ServletException("Unable to create PMF resource.", ex);
} catch (Exception ex) {
throw new ServletException("Unable to initialize.", ex);
}
}
/**
Destroys the servlet.
*/
public void destroy() {
}
/** Processes requests for both HTTP <code>GET</code>
* and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
protected void processRequest(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, java.io.IOException {
pm = persistenceManagerFactory.getPersistenceManager();
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet</title>");
out.println("</head>");
out.println("<body>");
out.print(formatMovieInfo());
out.println("</body>");
out.println("</html>");
out.close();
pm.close();
}
protected String formatMovieInfo() {
StringBuffer result = new StringBuffer();
Extent movies = pm.getExtent(Movie.class, true);
Iterator it = movies.iterator();
while (it.hasNext()) {
result.append("<P>");
Movie movie = (Movie)it.next();
result.append(movie.getDescription());
}
return result.toString();
}
/** Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, java.io.IOException {
processRequest(request, response);
}
/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, java.io.IOException {
processRequest(request, response);
}
/** Returns a short description of the servlet.
*/
public String getServletInfo() {
return "Movie Information";
}
} |
