package cs320.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import cs320.model.GuestBookEntry;
@WebServlet(urlPatterns = "/GuestBook", loadOnStartup = 2)
public class GuestBook extends HttpServlet {
private static final long serialVersionUID = 1L;
public GuestBook()
{
super();
}
public void init( ServletConfig config ) throws ServletException
{
super.init( config );
// create some test data for display
List<GuestBookEntry> entries = new ArrayList<GuestBookEntry>();
entries.add( new GuestBookEntry( 1, "john", "hello" ) );
entries.add( new GuestBookEntry( 2, "joe", "hi" ) );
// stored the data somewhere that can be accessed by this servlet
// and other servlets.
getServletContext().setAttribute( "entries", entries );
}
@SuppressWarnings("unchecked")
protected void doGet( HttpServletRequest request,
HttpServletResponse response ) throws ServletException, IOException
{
// get the data
List<GuestBookEntry> entries = (List<GuestBookEntry>) getServletContext().getAttribute(
"entries" );
// display it
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
out.println( "<html><head><title>Guest Book</title></head><body>" );
out.println( "<table border='1'>" );
out.println( "<tr><th>Id</th><th>Name</th><th>Message</th><th><br /></th></tr>" );
for( GuestBookEntry entry : entries )
{
out.println( "<tr><td>" + entry.getId() + "</td><td>"
+ entry.getName() + "</td><td>" + entry.getMessage()
+ "</td><td><a href='EditComment?id=" + entry.getId()
+ "'>Edit</a> <a href='DeleteComment?id=" + entry.getId()
+ "'>Delete</a></td></tr>" );
}
out.println( "</table>" );
out.println( "<p><a href='AddComment'>Add Comment</a></p>" );
out.println( "<p><a href='AddCommentWithCookie'>Add Comment (with Cookie)</a></p>" );
out.println( "<p><a href='AddCommentWithSession'>Add Comment (with Session)</a></p>" );
out.println( "</body></html>" );
}
protected void doPost( HttpServletRequest request,
HttpServletResponse response ) throws ServletException, IOException
{
doGet( request, response );
}
}