001/*
002 *  Copyright 2012 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.transformation;
017
018import java.io.IOException;
019import java.util.Map;
020
021import org.apache.avalon.framework.service.ServiceException;
022import org.apache.avalon.framework.service.ServiceManager;
023import org.apache.cocoon.ProcessingException;
024import org.apache.cocoon.environment.ObjectModelHelper;
025import org.apache.cocoon.generation.ServiceableGenerator;
026import org.apache.excalibur.xml.dom.DOMSerializer;
027import org.w3c.dom.Document;
028import org.xml.sax.SAXException;
029
030/**
031 * Generator to sax a DOM document.
032 */
033public class DOMGenerator extends ServiceableGenerator
034{
035    private DOMSerializer _domSerializer;
036    
037    @Override
038    public void service(ServiceManager sManager) throws ServiceException
039    {
040        super.service(sManager);
041        _domSerializer = (DOMSerializer) sManager.lookup(DOMSerializer.ROLE);
042    }
043    
044    @Override
045    public void generate() throws IOException, SAXException, ProcessingException
046    {
047        Map parentContextParameters = (Map) objectModel.get(ObjectModelHelper.PARENT_CONTEXT);
048        if (parentContextParameters == null)
049        {
050            throw new ProcessingException("Missing parent context");
051        }
052        
053        Document document = (Document) parentContextParameters.get("source");
054        
055        if (document == null)
056        {
057            throw new ProcessingException("Missing source parent context attr");
058        }
059        
060        _domSerializer.serialize(document, contentHandler, lexicalHandler);
061    }
062}