userfilter.java

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/**
 * 
 */
package com.pjaol.ifodder.servlet;

import java.io.IOException;

import javax.jms.Session;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

/**
 * @author admin
 *
 */
public class UserFilter implements Filter{

	private int user_id;
	private String user;
	
	public void init(FilterConfig config) throws ServletException {
		
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		
		HttpSession session = ((HttpServletRequest)request).getSession();
		Integer id = (Integer) session.getAttribute("user_id");
		
		if(id == null) {
			// will deal with you in a minute
			//TODO make up a user thingie.
			
			user_id = 1;
			user = "pjaol";
			
			session.setAttribute("user_id", user_id);
			session.setAttribute("user", user);
		}
		
		chain.doFilter(request, response);
		
	}

	public void destroy() {
		// TODO Auto-generated method stub
		
	}

}