/// <exception cref="Javax.Servlet.ServletException"/>
/// <exception cref="System.IO.IOException"/>
protected override void DoGet(HttpServletRequest request, HttpServletResponse response
)
{
ServletContext context = GetServletContext();
Configuration conf = NameNodeHttpServer.GetConfFromContext(context);
UserGroupInformation ugi = GetUGI(request, conf);
NameNode namenode = NameNodeHttpServer.GetNameNodeFromContext(context);
DatanodeID datanode = NamenodeJspHelper.GetRandomDatanode(namenode);
try
{
response.SendRedirect(CreateRedirectURL(ugi, datanode, request, namenode).ToString
());
}
catch (IOException e)
{
response.SendError(400, e.Message);
}
}
/// <exception cref="Javax.Servlet.ServletException"/>
/// <exception cref="System.IO.IOException"/>
protected override void Service(HttpServletRequest req, HttpServletResponse res)
{
res.SetCharacterEncoding("UTF-8");
string uri = HtmlQuoting.QuoteHtmlChars(req.GetRequestURI());
if (uri == null)
{
uri = "/";
}
if (devMode && uri.Equals("/__stop"))
{
// quick hack to restart servers in dev mode without OS commands
res.SetStatus(res.ScNoContent);
Log.Info("dev mode restart requested");
PrepareToExit();
return;
}
// if they provide a redirectPath go there instead of going to
// "/" so that filters can differentiate the webapps.
if (uri.Equals("/"))
{
string redirectPath = webApp.GetRedirectPath();
if (redirectPath != null && !redirectPath.IsEmpty())
{
res.SendRedirect(redirectPath);
return;
}
}
string method = req.GetMethod();
if (method.Equals("OPTIONS"))
{
DoOptions(req, res);
return;
}
if (method.Equals("TRACE"))
{
DoTrace(req, res);
return;
}
if (method.Equals("HEAD"))
{
DoGet(req, res);
// default to bad request
return;
}
string pathInfo = req.GetPathInfo();
if (pathInfo == null)
{
pathInfo = "/";
}
Controller.RequestContext rc = injector.GetInstance <Controller.RequestContext>();
if (SetCookieParams(rc, req) > 0)
{
Cookie ec = rc.Cookies()[ErrorCookie];
if (ec != null)
{
rc.SetStatus(System.Convert.ToInt32(rc.Cookies()[StatusCookie].GetValue()));
RemoveErrorCookies(res, uri);
rc.Set(Params.ErrorDetails, ec.GetValue());
Render(typeof(ErrorPage));
return;
}
}
rc.prefix = webApp.Name();
Router.Dest dest = null;
try
{
dest = router.Resolve(method, pathInfo);
}
catch (WebAppException e)
{
rc.error = e;
if (!e.Message.Contains("not found"))
{
rc.SetStatus(res.ScInternalServerError);
Render(typeof(ErrorPage));
return;
}
}
if (dest == null)
{
rc.SetStatus(res.ScNotFound);
Render(typeof(ErrorPage));
return;
}
rc.devMode = devMode;
SetMoreParams(rc, pathInfo, dest);
Controller controller = injector.GetInstance(dest.controllerClass);
try
{
// TODO: support args converted from /path/:arg1/...
dest.action.Invoke(controller, (object[])null);
if (!rc.rendered)
{
if (dest.defaultViewClass != null)
{
Render(dest.defaultViewClass);
}
else
{
if (rc.status == 200)
{
throw new InvalidOperationException("No view rendered for 200");
}
}
}
}
catch (Exception e)
{
Log.Error("error handling URI: " + uri, e);
// Page could be half rendered (but still not flushed). So redirect.
RedirectToErrorPage(res, e, uri, devMode);
}
}