/** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */
@SuppressWarnings("unchecked")
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
logger.info(String.format("register page @ %s", request.getSession().getId()));
PrintWriter writer = response.getWriter();
// 获取画面名称
String pageName = request.getParameter(FaceConstants.REQ_K_PAGENAME);
// 获取注册点json字符串
String tagsJson = request.getParameter(FaceConstants.REQ_K_TAGS);
if (logger.isDebugEnabled()) {
logger.debug("register page " + pageName);
}
// resolve the tags
List<Tag> regTags = resolveTags(tagsJson);
// check if the system already load this page
Map<String, Page> container =
(Map<String, Page>) getServletContext().getAttribute(FaceConstants.CTX_K_PAGES);
Page page = container.get(pageName);
if (page == null) {
page = new Page();
page.setPageName(pageName);
container.put(pageName, page); // 加入context中
}
// 更新当前画面所有tag点
page.setTags(regTags);
HttpSession session = request.getSession();
Map<String, SessionPage> seContainer =
(Map<String, SessionPage>) session.getAttribute(FaceConstants.SEN_K_PAGES);
// 判断session中是否包含该page
if (seContainer == null) {
// 当前sessionContainer为空
seContainer = new HashMap<String, SessionPage>();
// 添加sessionContainter到session对象中
session.setAttribute(FaceConstants.SEN_K_PAGES, seContainer);
}
SessionPage sessionPage = seContainer.get(pageName);
if (sessionPage == null) {
// 如果当前session无该页面对象 新建page并加入
// 用已有的context page 构建sessionpage对象
SessionPage regPage = new SessionPage(container.get(pageName));
seContainer.put(pageName, regPage);
}
logger.info("register done");
writer.write(FaceCommonUtils.getInfoMsg(FaceConstants.IC_OK));
writer.flush();
}
