/*
* MBoardHttpRequestFilter.java 2005-10-14
*
* 版权所有: 自由思考组织(FTO)软件团队 2000-2005, 保留所有权利.
* 这个软件是自由思考组织(FTO)软件团队开发的，如果要使用这个软件，请首先阅读并接受许可协议。
*
* Copyright 2000-2005 FTO Software Team, Inc. All Rights Reserved.
* This software is the proprietary information of FTO Software Team, Inc.
* Use is subject to license terms.
*
* FTO站点：http://www.free-think.org
*/
package org.fto.jthink.sample.mboard.util;
import java.io.IOException;
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 org.fto.jthink.j2ee.web.HttpRequest;
import org.fto.jthink.j2ee.web.HttpRequestFilter;
import org.fto.jthink.j2ee.web.HttpSession;
import org.fto.jthink.j2ee.web.WEBApplicationContext;
import org.fto.jthink.log.LogManager;
import org.fto.jthink.log.Logger;
import org.fto.jthink.resource.ResourceManager;
/**
* 请求过滤器, 此程序演示了创建创建和设置资源容器，创建资源管理器, 向资源管理器中设置资源。
* 此过滤器需要在web.xml中配置。
*
*
*
* @author wenjian
* @version 1.0
* @since JThink Sample Message Board 1.0
* @see JThink 1.0
*
*/
public class MBoardHttpRequestFilter implements HttpRequestFilter {
private static final Logger logger = LogManager.getLogger(MBoardHttpRequestFilter.class);
private static String encoding;
/* （非 Javadoc）
* @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
*/
public void init(FilterConfig config) throws ServletException {
encoding = config.getInitParameter("encoding");
}
/* （非 Javadoc）
* @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)
*/
public void doFilter(ServletRequest req, ServletResponse res,
FilterChain chain) throws IOException, ServletException {
logger.debug("初始化请求.");
try{
WEBApplicationContext webContext = new WEBApplicationContext(((HttpServletRequest)req).getSession().getServletContext());
/* 初始化请求 */
req.setCharacterEncoding(encoding);
HttpRequest request = new HttpRequest((HttpServletRequest)req);
/* 初始化资源管理器 */
ResourceManager resManager = new ResourceManager();
/* 设置资源容器, WEBApplicationContext上下文 */
resManager.setResourceContainer(WEBApplicationContext.class.getName(), webContext);
/* 设置资源容器, HttpSession用户会话 */
HttpSession session = new HttpSession(((HttpServletRequest)req).getSession());
resManager.setResourceContainer(HttpSession.class.getName(), session);
/* 设置资源容器, HttpRequest请求 */
resManager.setResourceContainer(HttpRequest.class.getName(), request);
/* 设置资源, WEBApplicationContext */
resManager.setResource(WEBApplicationContext.class.getName(), webContext);
/* 设置资源, HttpSession */
resManager.setResource(HttpSession.class.getName(), session);
/* 设置资源, HttpRequest */
resManager.setResource(HttpRequest.class.getName(), request);
/* 设置资源, ServletResponse */
resManager.setResource(ServletResponse.class.getName(), res);
/* 将资源管理器加入到Request中,以便于在具休JSP或Servlet中能使用到资源管理器 */
request.setAttribute(ResourceManager.class.getName(), resManager);
/* 转到下一过滤器 */
chain.doFilter(req, res);
}catch(ServletException e){
throw e;
}
}
/* （非 Javadoc）
* @see javax.servlet.Filter#destroy()
*/
public void destroy() {
}
}