001/* 002 * (C) Copyright 2006-2007 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Jean-Marc Orliaguet, Chalmers 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.theme.webengine.negotiation.engine; 023 024import org.nuxeo.ecm.webengine.model.Resource; 025import org.nuxeo.ecm.webengine.model.WebContext; 026import org.nuxeo.theme.ApplicationType; 027import org.nuxeo.theme.Manager; 028import org.nuxeo.theme.ViewDef; 029import org.nuxeo.theme.negotiation.Scheme; 030import org.nuxeo.theme.types.TypeFamily; 031import org.nuxeo.theme.types.TypeRegistry; 032 033public final class ViewId implements Scheme { 034 035 public String getOutcome(final Object context) { 036 WebContext webContext = (WebContext) context; 037 final TypeRegistry typeRegistry = Manager.getTypeRegistry(); 038 final ApplicationType application = (ApplicationType) typeRegistry.lookup(TypeFamily.APPLICATION, 039 webContext.getModulePath(), webContext.getModule().getName()); 040 if (application == null) { 041 return null; 042 } 043 044 Resource targetObject = webContext.getTargetObject(); 045 if (targetObject == null) { 046 return null; 047 } 048 final String rootPath = webContext.getRoot().getPath(); 049 final String viewId = targetObject.getPath().substring(rootPath.length()); 050 051 final ViewDef view = application.getViewById(viewId); 052 if (view == null) { 053 return null; 054 } 055 final String engineName = view.getEngine(); 056 if (engineName == null) { 057 return null; 058 } 059 if (Manager.getTypeRegistry().lookup(TypeFamily.ENGINE, engineName) != null) { 060 return engineName; 061 } 062 return null; 063 } 064}