Java tutorial
/** * <a href="http://www.openolat.org"> * OpenOLAT - Online Learning and Training</a><br> * <p> * Licensed under the Apache License, Version 2.0 (the "License"); <br> * you may not use this file except in compliance with the License.<br> * You may obtain a copy of the License at the * <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache homepage</a> * <p> * Unless required by applicable law or agreed to in writing,<br> * software distributed under the License is distributed on an "AS IS" BASIS, <br> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br> * See the License for the specific language governing permissions and <br> * limitations under the License. * <p> * Initial code contributed and copyrighted by<br> * frentix GmbH, http://www.frentix.com * <p> */ package org.olat.ims.qti.export; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; import javax.servlet.http.HttpServletResponse; import org.apache.commons.io.IOUtils; import org.dom4j.DocumentFactory; import org.dom4j.Element; import org.olat.core.gui.media.MediaResource; import org.olat.core.gui.translator.Translator; import org.olat.core.logging.OLog; import org.olat.core.logging.Tracing; import org.olat.core.util.StringHelper; import org.olat.core.util.Util; import org.olat.core.util.openxml.OpenXMLDocument; import org.olat.core.util.openxml.OpenXMLDocument.Style; import org.olat.core.util.openxml.OpenXMLDocumentWriter; import org.olat.core.util.vfs.VFSContainer; import org.olat.course.assessment.AssessmentHelper; import org.olat.ims.qti.container.qtielements.RenderInstructions; import org.olat.ims.qti.editor.QTIEditHelper; import org.olat.ims.qti.editor.QTIEditorMainController; import org.olat.ims.qti.editor.beecom.objects.Assessment; import org.olat.ims.qti.editor.beecom.objects.ChoiceQuestion; import org.olat.ims.qti.editor.beecom.objects.EssayQuestion; import org.olat.ims.qti.editor.beecom.objects.FIBQuestion; import org.olat.ims.qti.editor.beecom.objects.FIBResponse; import org.olat.ims.qti.editor.beecom.objects.Item; import org.olat.ims.qti.editor.beecom.objects.OutcomesProcessing; import org.olat.ims.qti.editor.beecom.objects.Question; import org.olat.ims.qti.editor.beecom.objects.Response; import org.olat.ims.qti.editor.beecom.objects.Section; import org.olat.ims.qti.editor.tree.AssessmentNode; /** * * Initial date: 02.09.2013<br> * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com * */ public class QTIWordExport implements MediaResource { private final static OLog log = Tracing.createLoggerFor(QTIWordExport.class); private String encoding; private AssessmentNode rootNode; private VFSContainer mediaContainer; private Locale locale; public QTIWordExport(AssessmentNode rootNode, VFSContainer mediaContainer, Locale locale, String encoding) { this.encoding = encoding; this.locale = locale; this.rootNode = rootNode; this.mediaContainer = mediaContainer; } @Override public boolean acceptRanges() { return false; } @Override public String getContentType() { return "application/zip"; } @Override public Long getSize() { return null; } @Override public InputStream getInputStream() { return null; } @Override public Long getLastModified() { return null; } @Override public void release() { // } @Override public void prepare(HttpServletResponse hres) { try { hres.setCharacterEncoding(encoding); } catch (Exception e) { log.error("", e); } ZipOutputStream zout = null; try { String label = rootNode.getTitle(); String secureLabel = StringHelper.transformDisplayNameToFileSystemName(label); String file = secureLabel + ".zip"; hres.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + StringHelper.urlEncodeUTF8(file)); hres.setHeader("Content-Description", StringHelper.urlEncodeUTF8(label)); zout = new ZipOutputStream(hres.getOutputStream()); zout.setLevel(9); ZipEntry test = new ZipEntry(secureLabel + ".docx"); zout.putNextEntry(test); exportTest(label, zout, false); zout.closeEntry(); ZipEntry responses = new ZipEntry(secureLabel + "_responses.docx"); zout.putNextEntry(responses); exportTest(label, zout, true); zout.closeEntry(); } catch (Exception e) { log.error("", e); } finally { IOUtils.closeQuietly(zout); } } private void exportTest(String header, OutputStream out, boolean withResponses) { ZipOutputStream zout = null; try { OpenXMLDocument document = new OpenXMLDocument(); document.setMediaContainer(mediaContainer); document.setDocumentHeader(header); Translator translator = Util.createPackageTranslator(QTIWordExport.class, locale, Util.createPackageTranslator(QTIEditorMainController.class, locale)); Assessment assessment = rootNode.getAssessment(); renderAssessment(assessment, document, translator); for (Section section : assessment.getSections()) { renderSection(section, document); List<Item> items = section.getItems(); for (Iterator<Item> itemIt = items.iterator(); itemIt.hasNext();) { Item item = itemIt.next(); if (item.isAlient()) { renderAlienItem(item, document, translator); } else { renderItem(item, document, withResponses, translator); } if (itemIt.hasNext()) { document.appendPageBreak(); } } } zout = new ZipOutputStream(out); zout.setLevel(9); OpenXMLDocumentWriter writer = new OpenXMLDocumentWriter(); writer.createDocument(zout, document); } catch (Exception e) { log.error("", e); } finally { if (zout != null) { try { zout.finish(); } catch (IOException e) { log.error("", e); } } } } public static void renderAlienItem(Item item, OpenXMLDocument document, Translator translator) { String title = item.getTitle(); if (!StringHelper.containsNonWhitespace(title)) { title = item.getLabel(); } document.appendHeading1(title, null); String notSupported = translator.translate("info.alienitem"); document.appendText(notSupported, true, Style.bold); } public static void renderItem(Item item, OpenXMLDocument document, boolean withResponses, Translator translator) { Element el = DocumentFactory.getInstance().createElement("dummy"); item.addToElement(el); Element itemEl = (Element) el.elements().get(0); org.olat.ims.qti.container.qtielements.Item foo = new org.olat.ims.qti.container.qtielements.Item(itemEl); RenderInstructions renderInstructions = new RenderInstructions(); renderInstructions.put(RenderInstructions.KEY_STATICS_PATH, "/"); renderInstructions.put(RenderInstructions.KEY_LOCALE, translator.getLocale()); renderInstructions.put(RenderInstructions.KEY_RENDER_TITLE, Boolean.TRUE); if (item.getQuestion() != null) { Map<String, String> iinput = new HashMap<String, String>(); String questionType = null; String questionScore = null; Question question = item.getQuestion(); if (question instanceof ChoiceQuestion) { ChoiceQuestion choice = (ChoiceQuestion) question; if (question.getType() == Question.TYPE_SC) { questionType = translator.translate("item.type.sc"); fetchPointsOfMultipleChoices(itemEl, choice, iinput); } else if (question.getType() == Question.TYPE_MC) { questionType = translator.translate("item.type.mc"); fetchPointsOfMultipleChoices(itemEl, choice, iinput); } else if (question.getType() == Question.TYPE_KPRIM) { questionType = translator.translate("item.type.kprim"); fetchPointsOfKPrim(itemEl, choice, iinput); } } else if (question instanceof FIBQuestion) { questionType = translator.translate("item.type.sc"); for (Response response : question.getResponses()) { FIBResponse fibResponse = (FIBResponse) response; if ("BLANK".equals(fibResponse.getType())) { iinput.put(fibResponse.getIdent(), fibResponse.getCorrectBlank()); } } } else if (question instanceof EssayQuestion) { questionType = translator.translate("item.type.essay"); } if (question != null && question.getMaxValue() > 0.0f) { questionScore = AssessmentHelper.getRoundedScore(question.getMaxValue()); questionScore = translator.translate("item.score.long", new String[] { questionScore }); } renderInstructions.put(RenderInstructions.KEY_RENDER_CORRECT_RESPONSES, new Boolean(withResponses)); renderInstructions.put(RenderInstructions.KEY_CORRECT_RESPONSES_MAP, iinput); renderInstructions.put(RenderInstructions.KEY_QUESTION_TYPE, questionType); renderInstructions.put(RenderInstructions.KEY_QUESTION_SCORE, questionScore); renderInstructions.put(RenderInstructions.KEY_QUESTION_OO_TYPE, new Integer(question.getType())); } foo.renderOpenXML(document, renderInstructions); } private static void fetchPointsOfKPrim(Element itemEl, ChoiceQuestion choice, Map<String, String> iinput) { Element resprocessingXML = itemEl.element("resprocessing"); if (resprocessingXML != null) { List<?> respconditions = resprocessingXML.elements("respcondition"); Map<String, Float> points = QTIEditHelper.fetchPoints(respconditions, choice.getType()); for (Map.Entry<String, Float> entryPoint : points.entrySet()) { Float val = entryPoint.getValue(); if (val != null) { iinput.put(entryPoint.getKey(), entryPoint.getKey()); } } } } private static void fetchPointsOfMultipleChoices(Element itemEl, ChoiceQuestion choice, Map<String, String> iinput) { Element resprocessingXML = itemEl.element("resprocessing"); if (resprocessingXML != null) { List<?> respconditions = resprocessingXML.elements("respcondition"); Map<String, Float> points = QTIEditHelper.fetchPoints(respconditions, choice.getType()); for (Map.Entry<String, Float> entryPoint : points.entrySet()) { Float val = entryPoint.getValue(); if (val != null && val.floatValue() > 0.0f) { iinput.put(entryPoint.getKey(), entryPoint.getKey()); } } } } public static void renderSection(Section section, OpenXMLDocument document) { String title = section.getTitle(); document.appendHeading1(title, null); String objectives = section.getObjectives(); document.appendHtmlText(objectives, true); } public static void renderAssessment(Assessment assessment, OpenXMLDocument document, Translator translator) { String title = assessment.getTitle(); document.appendTitle(title); OutcomesProcessing outcomesProcessing = assessment.getOutcomes_processing(); if (outcomesProcessing != null) { String cutValue = outcomesProcessing.getField(OutcomesProcessing.CUTVALUE); String cutValueLabel = translator.translate("cut_value"); document.appendText(cutValueLabel + ": " + cutValue, true); } String objectives = assessment.getObjectives(); document.appendText(objectives, true); } }