001/*
002 * (C) Copyright 2006-2008 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     bstefanescu
016 *
017 * $Id$
018 */
019
020package org.nuxeo.ecm.webengine.model.impl;
021
022import java.text.ParseException;
023import java.util.Arrays;
024import java.util.HashSet;
025
026import org.nuxeo.ecm.webengine.WebEngine;
027import org.nuxeo.ecm.webengine.WebException;
028import org.nuxeo.ecm.webengine.loader.ClassProxy;
029import org.nuxeo.ecm.webengine.model.AdapterType;
030import org.nuxeo.ecm.webengine.model.Resource;
031import org.nuxeo.ecm.webengine.model.ResourceType;
032import org.nuxeo.ecm.webengine.model.WebAdapter;
033import org.nuxeo.ecm.webengine.security.PermissionService;
034import org.nuxeo.runtime.annotations.AnnotationManager;
035
036/**
037 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
038 */
039public class AdapterTypeImpl extends AbstractResourceType implements AdapterType {
040
041    // we are using arrays and not sets since the targetTypes and targetFacets have usually very small sizes
042    protected String targetType;
043
044    protected String[] targetFacets;
045
046    protected final String adapterName;
047
048    public AdapterTypeImpl(WebEngine engine, ModuleImpl module, ResourceTypeImpl superType, String name,
049            String adapterName, ClassProxy clazz, int visibility) {
050        super(engine, module, superType, name, clazz, visibility);
051        this.adapterName = adapterName;
052    }
053
054    public String getAdapterName() {
055        return adapterName;
056    }
057
058    public String getTargetType() {
059        return targetType;
060    }
061
062    public String[] getTargetFacets() {
063        return targetFacets;
064    }
065
066    public boolean acceptResource(Resource resource) {
067        if (acceptType(resource.getType())) {
068            if (targetFacets != null && targetFacets.length > 0) {
069                String[] facets = targetFacets; // make a local copy to avoid parallel type definition updates
070                for (String f : facets) {
071                    if (!resource.hasFacet(f)) {
072                        return false;
073                    }
074                }
075            }
076        }
077        return true;
078    }
079
080    public boolean acceptType(ResourceType type) {
081        if (targetType == null || targetType == ROOT_TYPE_NAME) {
082            return true;
083        }
084        return type.isDerivedFrom(targetType);
085    }
086
087    @Override
088    protected void loadAnnotations(AnnotationManager annoMgr) {
089        Class<?> c = clazz.get();
090        WebAdapter ws = c.getAnnotation(WebAdapter.class);
091        if (ws == null) {
092            return;
093        }
094        String g = ws.guard();
095        if (g != null && g.length() > 0) {
096            try {
097                guard = PermissionService.parse(g);
098            } catch (ParseException e) {
099                throw WebException.wrap("Failed to parse guard: " + g + " on WebObject " + c.getName(), e);
100            }
101        } else {
102            loadGuardFromAnnoation(c);
103        }
104        String[] facets = ws.facets();
105        if (facets != null && facets.length > 0) {
106            this.facets = new HashSet<String>(Arrays.asList(facets));
107        }
108        targetType = ws.targetType();
109        String[] targetFacets = ws.targetFacets();
110        if (targetFacets != null && targetFacets.length > 0) {
111            this.targetFacets = targetFacets;
112        }
113    }
114
115}