Examples of org.molgenis.framework.ui.ApplicationController

    {
      session.setAttribute("application", null);
    }


    // Get application from session
    ApplicationController appController = (ApplicationController) session.getAttribute("application");


    // Login credentials from FrontController
    Login userLogin = request.getDatabase().getLogin();


    // Create GUI if null
    if (appController == null)
    {
      // FIXME: never reached? isLoginRequired is FALSE in both
      // implementations?
      // also, what is request.getRequest().getParameter("logout") ?
      // and when session.isNew() ?
      if ((!userLogin.isAuthenticated() && userLogin.isLoginRequired())
          || (request.getRequest().getParameter("logout") != null && !session.isNew()))
      {
        response.getResponse().setHeader("WWW-Authenticate", "BASIC realm=\"MOLGENIS\"");
        response.getResponse().sendError(HttpServletResponse.SC_UNAUTHORIZED);
        session.invalidate();
        return;
      }
      appController = createUserInterface();
    }


    // Always pass login to GUI
    appController.setLogin(userLogin);


    // handle request
    try
    {


      if (Show.SHOW_JQGRID.equals(request.getString(FormModel.INPUT_SHOW)))
      {
        ScreenController<? extends ScreenModel> controller = appController.get(request
            .getString(ScreenModel.INPUT_TARGET));
        controller.handleRequest(db, request, response.getResponse().getOutputStream());
      }
      // action == download an attached file
      // FIXME move to form controllers handlerequest...
      else if (FileInput.ACTION_DOWNLOAD.equals(request.getString(ScreenModel.INPUT_ACTION)))
      {
        // logger.info(requestTuple);


        File file = new File(db.getFilesource() + "/" + request.getString(FileInput.INPUT_CURRENT_DOWNLOAD));


        FileInputStream filestream = new FileInputStream(file);


        response.getResponse().setContentType("application/x-download");
        response.getResponse().setContentLength((int) file.length());
        response.getResponse().setHeader("Content-Disposition",
            "attachment; filename=" + request.getString(FileInput.INPUT_CURRENT_DOWNLOAD));


        BufferedOutputStream out = new BufferedOutputStream(response.getResponse().getOutputStream());
        byte[] buffer = new byte[1024];
        int bytes_read;
        while ((bytes_read = filestream.read(buffer)) != -1)
        {
          out.write(buffer, 0, bytes_read);
        }
        filestream.close();
        out.flush();
        out.close();
      }


      // json downloads
      else if (!request.isNull("__action") && request.getAction().startsWith("download_json"))
      {
        // get the screen that will hande the download request
        ScreenController<? extends ScreenModel> controller = appController.get(request
            .getString(ScreenModel.INPUT_TARGET));


        response.getResponse().setContentType("application/json");


        controller.handleRequest(db, request, response.getResponse().getOutputStream());


        // TODO: does this fail when stream is already closed??
        response.getResponse().getOutputStream().flush();
        response.getResponse().getOutputStream().close();
      }


      // action == download, but now in a standard way, handled by
      // controller
      else if (ScreenModel.Show.SHOW_DOWNLOAD.equals(request.getString(FormModel.INPUT_SHOW)))
      {
        // get the screen that will hande the download request
        ScreenController<? extends ScreenModel> controller = appController.get(request
            .getString(ScreenModel.INPUT_TARGET));


        // set the headers for the download
        response.getResponse().setContentType("application/x-download");


        String action = request.getString(ScreenModel.INPUT_ACTION);
        String extension = null;
        if (action.startsWith("download_txt_"))
        {
          extension = "txt";
        }
        else if (action.startsWith("download_xls_"))
        {
          extension = "xls";
        }
        else
        {
          throw new Exception("Download type '" + action + "' unsupported!");
        }


        response.getResponse().setHeader("Content-Disposition",
            "attachment; filename=" + controller.getName().toLowerCase() + "." + extension);


        // let the handleRequest produce the content
        controller.handleRequest(db, request, response.getResponse().getOutputStream());


        // TODO: does this fail when stream is already closed??
        response.getResponse().getOutputStream().flush();
        response.getResponse().getOutputStream().close();
      }


      // handle normal event and then write the response
      else
      {
        // capture select
        if (request.getString("select") != null)
        {
          // get the screen to be selected
          ScreenController<?> toBeSelected = appController.get(request.getString("select"));
          // select leaf in its parent
          try
          {
            toBeSelected.getParent().setSelected(request.getString("select"));
          }
          catch (NullPointerException npe)
          {
            // screen does not exists, ignore request
          }
        }


        if (Show.SHOW_CLOSE.equals(appController.handleRequest(db, request, null)))
        {
          // if close, then write a close script
          PrintWriter writer = response.getResponse().getWriter();
          writer.write("<html><head></head><body><script>window.close();</script></body></html>");
          writer.close();
          return;
        }


        // workaround - see comment @
        // EasyPluginController.HTML_WAS_ALREADY_SERVED
        if (EasyPluginController.HTML_WAS_ALREADY_SERVED != null
            && EasyPluginController.HTML_WAS_ALREADY_SERVED)
        {
          EasyPluginController.HTML_WAS_ALREADY_SERVED = null;
          return;
        }


        // handle request by reloading (...)
        appController.reload(db);


        // session are automatically synchronized...
        session.setAttribute("application", appController);


        // prepare the response
        response.getResponse().setContentType("text/html");
        // response.setBufferSize(10000);
        PrintWriter writer = response.getResponse().getWriter();


        // Render result
        String show = request.getString(FormModel.INPUT_SHOW);
        if (ScreenModel.Show.SHOW_DIALOG.equals(show))
        {
          appController.getModel().setShow(show);
          ScreenController<?> target = appController.get(request.getString("__target"));
          appController.getModel().setTarget(target);
          writer.write(appController.render());
        }
        else if ("massupdate".equals(show))
        {
          appController.getModel().setShow("show");
          writer.write(appController.render());


        }
        else
        {
          appController.getModel().setShow("root");
          writer.write(appController.render());


          // special: set a different selected screen after rendering
          // is done
          // this enables you to for example create a filtered linkout
          // from a plugin,
          // while staying 'within' the plugin (keep the selection
          // state) when you click another
          // button in the plugin that opens in a new tab (a href
          // target="_blank")
          // if you don't set this, the application will switch to the
          // screen selected for the linkout
          // which makes very strange browsing behaviour for users
          //
          // e.g.
          // molgenis.do?select=Markers&target=Markers&__comebacktoscreen=QTLFinder&__action=filter_set[...]
          // '__target' will send the request to the 'Markers' screen
          // 'select' will tell the controller to render the the
          // 'Markers' screen
          // '__comebacktoscreen' will set the view state back to the
          // plugin so you can continue using it normally
          if (request.getString("__comebacktoscreen") != null)
          {
            ScreenController<?> toBeSelected = appController.get(request.getString("__comebacktoscreen"));
            toBeSelected.getParent().setSelected(request.getString("__comebacktoscreen"));
          }
        }


        writer.close();


        // done, get rid of screen messages here?
        appController.clearAllMessages();


      }
    }
    catch (Exception e)
    {
Examples of org.molgenis.framework.ui.ApplicationController

Related Classes of org.molgenis.framework.ui.ApplicationController
