001/*
002 *  Copyright 2020 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.cms.content;
017
018import java.io.IOException;
019import java.net.MalformedURLException;
020import java.util.Map;
021
022import org.apache.avalon.framework.context.Context;
023import org.apache.avalon.framework.context.ContextException;
024import org.apache.avalon.framework.context.Contextualizable;
025import org.apache.avalon.framework.service.ServiceException;
026import org.apache.avalon.framework.service.ServiceManager;
027import org.apache.avalon.framework.service.Serviceable;
028import org.apache.avalon.framework.thread.ThreadSafe;
029import org.apache.cocoon.components.ContextHelper;
030import org.apache.cocoon.environment.Request;
031import org.apache.excalibur.source.Source;
032import org.apache.excalibur.source.SourceFactory;
033
034import org.ametys.cms.data.RichText;
035import org.ametys.cms.repository.Content;
036import org.ametys.core.util.FilenameUtils;
037import org.ametys.plugins.repository.AmetysObjectResolver;
038import org.ametys.runtime.plugin.component.AbstractLogEnabled;
039
040/**
041 * {@link SourceFactory} for {@link RichText}'s local files.
042 */
043public class RichTextFileSourceFactory extends AbstractLogEnabled implements SourceFactory, ThreadSafe, Serviceable, Contextualizable
044{
045    /** source scheme */
046    public static final String RICHTEXT_FILE_SCHEME = "richtext";
047    
048    private Context _context;
049    private AmetysObjectResolver _resolver;
050    
051    @Override
052    public void contextualize(Context context) throws ContextException
053    {
054        _context = context;
055    }
056    
057    public void service(ServiceManager manager) throws ServiceException
058    {
059        _resolver = (AmetysObjectResolver) manager.lookup(AmetysObjectResolver.ROLE);
060    }
061    
062    public Source getSource(String location, Map parameters) throws IOException, MalformedURLException
063    {
064        String uri = location.substring((RICHTEXT_FILE_SCHEME + "://").length());
065        
066        // uri are like <contentPath>@<attributePath>;<filename>
067        int i = uri.indexOf('@');
068        int j = uri.indexOf(';', i);
069        String path = uri.substring(0, i);
070        String attribute = uri.substring(i + 1, j);
071        String filename = uri.substring(j + 1);
072        
073        Request request = ContextHelper.getRequest(_context);
074        Content content = (Content) request.getAttribute(Content.class.getName());
075        
076        try
077        {
078            if (content == null) 
079            {
080                content = _resolver.resolveByPath(FilenameUtils.decode(path));
081            }
082            
083            RichText richText = content.getValue(attribute);
084    
085            return new RichTextFileSource(content, richText, FilenameUtils.decode(filename), location);
086        }
087        catch (Exception e)
088        {
089            getLogger().error("Unable to resolve richText data for uri " + location, e);
090            
091            // returns an unexisting Source
092            return new RichTextFileSource(content, null, FilenameUtils.decode(filename), location);
093        }
094    }
095
096    public void release(Source source)
097    {
098        // nothing to do
099    }
100}