ControllerServlet

package com;

import java.io.IOException;
import java.util.List;
import java.util.ArrayList;
import javax.servlet.*;
import javax.servlet.http.*;
import com.DAO.*;
import com.DTO.*;
import com.java.names;
import com.java.sender;


public class ControllerServlet extends HttpServlet
{
	private static final String ACTION_KEY = "action";
	private static final String VIEW_NAMES_ACTION = "viewNames";
    private static final String SEARCH_FIRST_ACTION = "searchFirst";
    private static final String SEARCH_LAST_ACTION = "searchLast";
	private static final String ERROR_KEY = "errorMessage";
	private static final String ERROR_PAGE = "/error.jsp";
	private static final String XA_QUEUE_CONNECTION_FACTORY = "java:comp/env/jms/MyXAQueueConnectionFactory";
	private static final String NAME_QUEUE = "java:comp/env/jms/nameQueue";

	public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
	{
		try {
			processRequest(request, response);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
	{
		try {
			processRequest(request, response);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws Exception
	{
		String actionName = request.getParameter(ACTION_KEY);
		String destinationPage = ERROR_PAGE;

		nameDAO DAO = new nameDAO();

		//perform action
		if(VIEW_NAMES_ACTION.equals(actionName))
		{
			request.setAttribute("nameList", DAO.findAll());

			destinationPage = "/nameList.jsp";
		}
		else if(SEARCH_FIRST_ACTION.equals(actionName))
		{
			System.out.println("SEARCH FOR FIRST NAME");
			sender s = new sender("first", request.getParameter("last"));
		}
		else if(SEARCH_LAST_ACTION.equals(actionName))
		{
			System.out.println("SEARCH FOR LAST NAME");
			sender s = new sender("last", request.getParameter("first"));

		}
		else
		{
			String errorMessage = "[" + actionName +"] is not a valid action.";
			request.setAttribute(ERROR_KEY, errorMessage);
		}

		//redirect to destination page
		RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(destinationPage);

		dispatcher.forward(request, response);
		}
	}