public ActionForward execute(
ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
// browser cache expire time;
int expire = 2 * 60;
if (request.getParameter("nocache") != null) { // for just modified and
// view it
expire = 0;
return actionMapping.findForward(FormBeanUtil.FORWARD_SUCCESS_NAME);
}
String threadId = request.getParameter("thread");
if ((threadId == null) || (!UtilValidate.isInteger(threadId))) {
response.sendError(404);
return null;
}
ForumMessageService forumMessageService =
(ForumMessageService) WebAppUtil.getService("forumMessageService", request);
ForumThread forumThread = forumMessageService.getThread(new Long(threadId));
if (forumThread == null) {
response.sendError(404);
return null;
}
long modelLastModifiedDate = forumThread.getState().getModifiedDate2();
if (!ToolsUtil.checkHeaderCache(expire, modelLastModifiedDate, request, response)) {
return null; // response is 304
}
return actionMapping.findForward(FormBeanUtil.FORWARD_SUCCESS_NAME);
}
