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// $Id$
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/**
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* Copyright (C) 2015 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.vaadin.util;
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import java.util.concurrent.locks.Lock;
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import org.apache.log4j.Logger;
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import com.vaadin.server.VaadinSession;
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import eu.etaxonomy.cdm.vaadin.session.BasicEventService;
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import eu.etaxonomy.cdm.vaadin.session.CdmDataChangeService;
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import eu.etaxonomy.cdm.vaadin.session.SelectionService;
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/**
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* @author cmathew
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* @date 7 Apr 2015
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*
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*/
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public class CdmVaadinSessionUtilities {
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private static final Logger logger = Logger.getLogger(CdmVaadinSessionUtilities.class);
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public static void setCurrentAttribute(String name, Object value) {
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Lock sessionLock = VaadinSession.getCurrent().getLockInstance();
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try {
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if(sessionLock != null) {
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sessionLock.lock();
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}
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VaadinSession.getCurrent().setAttribute(name, value);
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} finally {
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if(sessionLock != null) {
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sessionLock.unlock();
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}
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}
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}
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public static void initCdmDataChangeService() {
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// if(getCurrentCdmDataChangeService() != null) {
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// logger.info("replacing data change service with new one");
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// }
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setCurrentAttribute(CdmDataChangeService.KEY, new CdmDataChangeService());
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}
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public static CdmDataChangeService getCurrentCdmDataChangeService() {
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return (CdmDataChangeService) VaadinSession.getCurrent().getAttribute(CdmDataChangeService.KEY);
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}
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public static void initSelectionService() {
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// if(getCurrentSelectionService() != null) {
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// logger.info("replacing selection service with new one");
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// }
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setCurrentAttribute(SelectionService.KEY, new SelectionService());
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}
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public static SelectionService getCurrentSelectionService() {
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return (SelectionService) VaadinSession.getCurrent().getAttribute(SelectionService.KEY);
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}
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public static void initBasicEventService() {
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// if(getCurrentBasicEventService() != null) {
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// logger.info("replacing basic event service with new one");
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// }
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setCurrentAttribute(BasicEventService.KEY, new BasicEventService());
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}
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public static BasicEventService getCurrentBasicEventService() {
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return (BasicEventService) VaadinSession.getCurrent().getAttribute(BasicEventService.KEY);
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}
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}
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