package dk.hansen;

import java.util.ArrayList;
import java.util.Collection;

import javax.servlet.http.*;

import org.apache.log4j.Logger;
import org.apache.struts.action.*;

public final class ListDVDAction extends CommonDVDAction {

   private static Logger logger = 
     Logger.getLogger(ListDVDAction.class.getName());

   public ActionForward commonExecute(
      ActionMapping mapping,
      ActionForm form,
      HttpServletRequest request,
      HttpServletResponse response) {

      ActionErrors errors = new ActionErrors();

      // Get the DVD manager factory
      HttpSession session = request.getSession();
      DVDManagerFactoryIF factory = (DVDManagerFactoryIF) session.getAttribute("dvdfactory");
      DVDManagerIF manager = factory.createDVDManager();

      Collection c = new ArrayList();

      try {
         c = manager.getAll();
      } catch (DAOException e) {
         // Message for the user:
         errors.add("label", new ActionError("error.listfailed"));
         saveErrors(request, errors);
         
         // Logging the error:
         String message = "DVDs could not be listed";
         logger.fatal(message, e);
         
         // Save the chained exceptions:
         request.setAttribute("MYEXCEPTION", new DAOException(message, e));
         
         // Return to the error page
         return (mapping.findForward("error"));
      }

      session.setAttribute("dvds", c);

      return (mapping.findForward("list"));

   }

}