listaccounts.java

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package itso.basicweb.control;

import java.io.IOException;
import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import itso.bank.model.Customer;
import itso.bank.model.Account;
import itso.bank.facade.Banking;

/**
 * @version 	1.0
 * @author
 */
public class ListAccounts extends HttpServlet {

	/**
	* @see javax.servlet.http.HttpServlet#void (javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	*/
	public void doGet(HttpServletRequest req, HttpServletResponse resp)
		throws ServletException, IOException {
		performTask(req, resp);
	}

	/**
	* @see javax.servlet.http.HttpServlet#void (javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	*/
	public void doPost(HttpServletRequest req, HttpServletResponse resp)
		throws ServletException, IOException {
		performTask(req, resp);
	}

	public void performTask(HttpServletRequest req,	HttpServletResponse resp) 
		throws ServletException, IOException {
		try {
			// Parameters
			// Get input parameter and keep it on the HTTP session
			String customerNumber = req.getParameter("customerNumber");
			HttpSession session = req.getSession();

			if (customerNumber == null)
				customerNumber = (String) session.getAttribute("customerNumber");
			else
				session.setAttribute("customerNumber", customerNumber);

			// Control logic
			// Create the new banking fa鏰de
			Banking banking = new Banking();
	
			// Retrieve customer and related accounts
			Customer customer = banking.getCustomer(customerNumber);
			Account[] accounts = banking.getAccounts(customerNumber);

			// Response
			// Set the request attributes for future rendering
			req.setAttribute("customer", customer);
			req.setAttribute("accounts", accounts);

			// Call the presentation renderer
			getServletContext().getRequestDispatcher("listAccounts.jsp").forward(req, resp);
		
		} catch (Exception e) {
			req.setAttribute("message", e.getMessage());
			req.setAttribute("forward", "index.html");
			getServletContext().getRequestDispatcher("showException.jsp").forward(req, resp);
		}
	}
}