001/*
002 * (C) Copyright 2006-2007 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.jsf.negotiation.perspective;
016
017import javax.faces.context.FacesContext;
018
019import org.nuxeo.theme.jsf.negotiation.CookieManager;
020import org.nuxeo.theme.negotiation.Scheme;
021import org.nuxeo.theme.perspectives.PerspectiveManager;
022
023public class CookieValue implements Scheme {
024
025    public String getOutcome(final Object context) {
026        final String perspectiveName = CookieManager.getCookie("nxthemes.perspective",
027                ((FacesContext) context).getExternalContext());
028        if (perspectiveName == null) {
029            return null;
030        }
031        if (PerspectiveManager.hasPerspective(perspectiveName)) {
032            return perspectiveName;
033        }
034        return null;
035    }
036}