001/*
002 *  Copyright 2010 Anyware Services
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 */
016package org.ametys.web.attachments;
017
018import java.util.HashMap;
019import java.util.Map;
020
021import org.apache.avalon.framework.parameters.Parameters;
022import org.apache.avalon.framework.service.ServiceException;
023import org.apache.avalon.framework.service.ServiceManager;
024import org.apache.cocoon.acting.ServiceableAction;
025import org.apache.cocoon.environment.ObjectModelHelper;
026import org.apache.cocoon.environment.Redirector;
027import org.apache.cocoon.environment.Request;
028import org.apache.cocoon.environment.SourceResolver;
029
030import org.ametys.plugins.explorer.resources.ModifiableResourceCollection;
031import org.ametys.plugins.repository.AmetysObjectResolver;
032import org.ametys.plugins.repository.ModifiableAmetysObject;
033import org.ametys.plugins.repository.RepositoryConstants;
034import org.ametys.plugins.repository.TraversableAmetysObject;
035import org.ametys.web.repository.content.WebContent;
036import org.ametys.web.repository.page.jcr.DefaultPage;
037
038/**
039 * This action retrieves the id of the attachments root node of a {@link TraversableAmetysObject}.<br/>If the attachments node does not exist, it will be created.
040 */
041public class AttachmentsRootNodeAction extends ServiceableAction
042{
043    /** Constant for the attachment node name. */
044    public static final String ATTACHMENTS_NODE_NAME = RepositoryConstants.NAMESPACE_PREFIX_INTERNAL + ":attachments";
045    
046    private AmetysObjectResolver _resolver;
047    
048    @Override
049    public void service(ServiceManager smanager) throws ServiceException
050    {
051        super.service(smanager);
052        
053        _resolver = (AmetysObjectResolver) smanager.lookup(AmetysObjectResolver.ROLE);
054    }
055    
056    @Override
057    public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String source, Parameters parameters) throws Exception
058    {
059        Map<String, String> result = new HashMap<>();
060        
061        Request request = ObjectModelHelper.getRequest(objectModel);
062        String id = request.getParameter("id");
063        
064        TraversableAmetysObject object = _resolver.resolveById(id);
065        
066        TraversableAmetysObject attachments = null;
067        
068        if (object instanceof DefaultPage)
069        {
070            attachments = ((DefaultPage) object).getRootAttachments();
071        }
072        else if (object instanceof WebContent)
073        {
074            attachments = ((WebContent) object).getRootAttachments();
075        }
076        
077        if (attachments != null)
078        {
079            result.put("rootID", attachments.getId());
080            if (attachments instanceof ModifiableAmetysObject)
081            {
082                result.put("isModifiable", "true");
083            }
084            if (attachments instanceof ModifiableResourceCollection)
085            {
086                result.put("canCreateChild", "true");
087            }
088            
089            return result;
090        }
091        
092        throw new IllegalArgumentException("Element with id '" + id + "' is of type '" + object.getClass().getName() + "' that does not support attachments.");
093    }
094}