src/main/java/eu/etaxonomy/cdm/vaadin/util/CdmVaadinSessionUtilities.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2015 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.cdm.vaadin.util;
  11
  12 import com.vaadin.server.VaadinSession;
  13
  14 import eu.etaxonomy.cdm.vaadin.session.CdmDataChangeService;
  15 import eu.etaxonomy.cdm.vaadin.session.SelectionService;
  16
  17 /**
  18  * @author cmathew
  19  * @date 7 Apr 2015
  20  *
  21  */
  22 public class CdmVaadinSessionUtilities {
  23
  24     public static void setCurrentAttribute(String name, Object value) {
  25         try {
  26             VaadinSession.getCurrent().getLockInstance().lock();
  27             VaadinSession.getCurrent().setAttribute(name, value);
  28         } finally {
  29             VaadinSession.getCurrent().getLockInstance().unlock();
  30         }
  31     }
  32
  33     public static void initCdmDataChangeService() {
  34         setCurrentAttribute(CdmDataChangeService.KEY, new CdmDataChangeService());
  35     }
  36
  37     public static CdmDataChangeService getCurrentCdmDataChangeService() {
  38         return (CdmDataChangeService) VaadinSession.getCurrent().getAttribute(CdmDataChangeService.KEY);
  39     }
  40
  41     public static void initSelectionService() {
  42         setCurrentAttribute(SelectionService.KEY, new SelectionService());
  43     }
  44
  45     public static SelectionService getCurrentSelectionService() {
  46         return (SelectionService) VaadinSession.getCurrent().getAttribute(SelectionService.KEY);
  47     }
  48 }