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.odf.content;
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.environment.Request;
026import org.apache.cocoon.generation.ServiceableGenerator;
027import org.apache.cocoon.xml.AttributesImpl;
028import org.apache.cocoon.xml.XMLUtils;
029import org.apache.commons.lang.StringUtils;
030import org.xml.sax.SAXException;
031
032import org.ametys.cms.repository.Content;
033import org.ametys.core.util.LambdaUtils;
034import org.ametys.odf.ProgramItem;
035import org.ametys.odf.course.Course;
036import org.ametys.odf.skill.ODFSkillsHelper;
037
038/**
039 * SAX the acquired skills hold by child courses of a {@link ProgramItem}
040 *
041 */
042public class ProgramItemSkillsGenerator extends ServiceableGenerator
043{
044    private ODFSkillsHelper _skillsHelper;
045
046    @Override
047    public void service(ServiceManager smanager) throws ServiceException
048    {
049        super.service(smanager);
050        _skillsHelper = (ODFSkillsHelper) smanager.lookup(ODFSkillsHelper.ROLE);
051    }
052    
053    public void generate() throws IOException, SAXException, ProcessingException
054    {
055        Request request = ObjectModelHelper.getRequest(objectModel);
056        Content content = (Content) request.getAttribute(Content.class.getName());
057
058        String metadataSetName = request.getParameter("metadataSetName");
059        
060        contentHandler.startDocument();
061        
062        if ("main".equals(metadataSetName) || StringUtils.isEmpty(metadataSetName))
063        {
064            if (content instanceof ProgramItem)
065            {
066                Map<Content, Map<Content, Map<Content, Content>>> skillsDistribution = _skillsHelper.getSkillsDistribution((ProgramItem) content, 2);
067                saxSkillsDistribution(skillsDistribution);
068            }
069            else
070            {
071                getLogger().warn("Cannot get the skills of a non program item '" + content.getId() + "'");
072            }
073        }
074        
075        contentHandler.endDocument();
076    }
077    
078    /**
079     * SAX the skills distribution
080     * @param distribution the skills distribution
081     * @throws IOException if an I/O error occurred
082     * @throws SAXException if an error occurred while saxing
083     */
084    protected void saxSkillsDistribution(Map<Content, Map<Content, Map<Content, Content>>> distribution) throws IOException, SAXException
085    {
086        XMLUtils.startElement(contentHandler, "skills");
087        
088        distribution.entrySet()
089            .stream()
090            .forEach(LambdaUtils.wrapConsumer(e -> 
091            {
092                Content skillSet = e.getKey();
093                
094                AttributesImpl attrs = new AttributesImpl();
095                attrs.addCDATAAttribute("id", skillSet.getId());
096                attrs.addCDATAAttribute("title", skillSet.getTitle());
097                attrs.addCDATAAttribute("code", skillSet.getValue("code", false, ""));
098                
099                XMLUtils.startElement(contentHandler, "skillSet", attrs);
100                
101                Map<Content, Map<Content, Content>> skills = e.getValue();
102                
103                skills.entrySet()
104                    .stream()
105                    .forEach(LambdaUtils.wrapConsumer(s -> 
106                    {
107                        Content skill = s.getKey();
108                        
109                        attrs.clear();
110                        attrs.addCDATAAttribute("id", skill.getId());
111                        attrs.addCDATAAttribute("title", skill.getTitle());
112                        attrs.addCDATAAttribute("code", skill.getValue("code", false, ""));
113                        
114                        XMLUtils.startElement(contentHandler, "skill", attrs);
115                        
116                        Map<Content, Content> courses = s.getValue();
117                        
118                        courses.entrySet().stream()
119                            .forEach(LambdaUtils.wrapConsumer(p -> 
120                            {
121                                Content course = p.getKey();
122                                
123                                attrs.clear();
124                                attrs.addCDATAAttribute("id", course.getId());
125                                attrs.addCDATAAttribute("title", course.getTitle());
126                                attrs.addCDATAAttribute("code", ((Course) course).getCode());
127                                
128                                XMLUtils.startElement(contentHandler, "course", attrs);
129                                
130                                Content acquisitionLevel = p.getValue();
131                                if (acquisitionLevel != null)
132                                {
133                                    attrs.clear();
134                                    attrs.addCDATAAttribute("id", acquisitionLevel.getId());
135                                    attrs.addCDATAAttribute("title", acquisitionLevel.getTitle());
136                                    attrs.addCDATAAttribute("code", acquisitionLevel.getValue("code", false, ""));
137                                    attrs.addCDATAAttribute("order", String.valueOf(acquisitionLevel.getValue("order", false, 1)));
138                                    XMLUtils.createElement(contentHandler, "acquisitionLevel", attrs);
139                                }
140                                XMLUtils.endElement(contentHandler, "course");
141                                
142                            }));
143                        
144                        XMLUtils.endElement(contentHandler, "skill");
145                    }));
146                
147                XMLUtils.endElement(contentHandler, "skillSet");
148            }));
149        XMLUtils.endElement(contentHandler, "skills");
150    }
151}