import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import MDMSupport.*;

public class getMessagesFromRepository extends HttpServlet {
//Initialize global variables
  MDMessageRepository mmr;
  public void init(ServletConfig config) throws ServletException {
    try{
      super.init(config);
      mmr = MDMessageRepository.getInstance();
    }
    catch(Exception ex){
      ex.printStackTrace();
    }
  }
//Process the HTTP Get request

  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    ObjectOutputStream oos = new ObjectOutputStream(response.getOutputStream());
    try{
      Vector result = new Vector();
      String userName = request.getParameter("userName");
      Enumeration e = mmr.values(userName);
      mmr.remove(userName);
      while(e.hasMoreElements()){
        ReceivedMDMessage rm = (ReceivedMDMessage)e.nextElement();
        result.addElement(rm.msg);
      }
      oos.writeObject(result);
      result = null;
      e = null;
    }
    catch(Exception ex){
      ex.printStackTrace();
    }
    finally{
      oos.close();
    }
  }

//Get Servlet information

  public String getServletInfo() {
    return "getMessagesFromRepository Information";
  }
}