package com.oreilly.jent.struts.library.ui;

/**
 * In general, you may use the code in this book in your programs and 
 * documentation. You do not need to contact us for permission unless 
 * you're reproducing a significant portion of the code. For example, 
 * writing a program that uses several chunks of code from this book does 
 * not require permission. Selling or distributing a CD-ROM of examples 
 * from O'Reilly books does require permission. Answering a question by 
 * citing this book and quoting example code does not require permission. 
 * Incorporating a significant amount of example code from this book into 
 * your product's documentation does require permission.
 * 
 * We appreciate, but do not require, attribution. An attribution usually 
 * includes the title, author, publisher, and ISBN. For example: 
 * 
 *   "Java Enterprise in a Nutshell, Third Edition, 
 *    by Jim Farley and William Crawford 
 *    with Prakash Malani, John G. Norman, and Justin Gehtland. 
 *    Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
 *  
 *  If you feel your use of code examples falls outside fair use or the 
 *  permission given above, feel free to contact us at 
 *  permissions@oreilly.com.
 */

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

import org.apache.struts.action.RequestProcessor;

import com.oreilly.jent.struts.library.session.UserSession;

public class LibraryRequestProcessor extends RequestProcessor {

  protected boolean processPreprocess(HttpServletRequest request,
      HttpServletResponse response) {
    UserSession userSession = null;
    HttpSession session = request.getSession();
    if (session != null) {
      userSession = (UserSession) session
          .getAttribute(WebGlobals.USER_SESSION_KEY);
      if (userSession == null) {
        userSession = new UserSession();
        session.setAttribute(WebGlobals.USER_SESSION_KEY, userSession);
      }
    }
    return super.processPreprocess(request, response);
  }
}