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.odf.course.generators;
017
018import java.io.IOException;
019
020import org.apache.avalon.framework.service.ServiceException;
021import org.apache.avalon.framework.service.ServiceManager;
022import org.apache.cocoon.ProcessingException;
023import org.apache.cocoon.environment.ObjectModelHelper;
024import org.apache.cocoon.environment.Request;
025import org.apache.cocoon.generation.ServiceableGenerator;
026import org.apache.cocoon.xml.AttributesImpl;
027import org.apache.cocoon.xml.XMLUtils;
028import org.xml.sax.SAXException;
029
030import org.ametys.odf.course.Course;
031import org.ametys.plugins.repository.AmetysObjectResolver;
032
033/**
034 * SAX a {@link Course}
035 *
036 */
037public class CourseGenerator extends ServiceableGenerator
038{
039    /** The Ametys object resolver */
040    protected AmetysObjectResolver _resolver;
041
042    @Override
043    public void service(ServiceManager smanager) throws ServiceException
044    {
045        super.service(smanager);
046        _resolver = (AmetysObjectResolver) smanager.lookup(AmetysObjectResolver.ROLE);
047    }
048    
049    @Override
050    public void generate() throws IOException, SAXException, ProcessingException
051    {
052        Request request = ObjectModelHelper.getRequest(objectModel);
053        String id = request.getParameter("id");
054        
055        contentHandler.startDocument();
056        
057        Course course = _resolver.resolveById(id);
058        _saxCourse(course);
059        
060        contentHandler.endDocument();
061    }
062    
063    /**
064     * SAX a {@link Course}
065     * @param course The course to SAX
066     * @throws SAXException if an error occurred while SAXing
067     */
068    protected void _saxCourse(Course course) throws SAXException
069    {
070        AttributesImpl attr = new AttributesImpl();
071        
072        attr.addCDATAAttribute("name", course.getName());
073        attr.addCDATAAttribute("title", course.getTitle());
074        attr.addCDATAAttribute("id", course.getId());
075        attr.addCDATAAttribute("hasList", String.valueOf(course.hasCourseLists()));
076        
077        XMLUtils.createElement(contentHandler, "course", attr);
078    }
079
080}