001/* 002 * (C) Copyright 2006-2009 Nuxeo SAS <http://nuxeo.com> and others 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the Eclipse Public License v1.0 006 * which accompanies this distribution, and is available at 007 * http://www.eclipse.org/legal/epl-v10.html 008 * 009 * Contributors: 010 * Jean-Marc Orliaguet, Chalmers 011 * 012 * $Id$ 013 */ 014 015package org.nuxeo.theme.webengine.negotiation.engine; 016 017import org.nuxeo.ecm.webengine.model.WebContext; 018import org.nuxeo.theme.Manager; 019import org.nuxeo.theme.negotiation.Scheme; 020import org.nuxeo.theme.types.TypeFamily; 021 022public class CookieValue implements Scheme { 023 024 public String getOutcome(final Object context) { 025 final WebContext webContext = (WebContext) context; 026 String engineName = webContext.getCookie("nxthemes.engine"); 027 if (engineName == null) { 028 return null; 029 } 030 if (Manager.getTypeRegistry().lookup(TypeFamily.ENGINE, engineName) != null) { 031 return engineName; 032 } 033 return null; 034 } 035 036}