/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <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>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.ims.qti.navigator;
import java.io.Serializable;
import org.olat.ims.qti.QTIConstants;
import org.olat.ims.qti.container.AssessmentContext;
import org.olat.ims.qti.container.ItemContext;
import org.olat.ims.qti.container.ItemsInput;
import org.olat.ims.qti.container.Output;
import org.olat.ims.qti.container.SectionContext;
import org.olat.ims.qti.process.AssessmentInstance;
/**
* Navigator used for the case: <br>
* 1. Navigation (via Menu) visible and enabled, one question per page <br>
*
* @author Felix Jost
*/
public class MenuItemNavigator extends DefaultNavigator implements Navigator, Serializable {
/**
* @param assessmentContext
*/
public MenuItemNavigator(AssessmentInstance assessmentInstance) {
super(assessmentInstance);
}
public void startAssessment() {
getInfo().setStatus(QTIConstants.ASSESSMENT_RUNNING);
getInfo().setMessage(QTIConstants.MESSAGE_ASSESSMENT_INFODEMANDED);
getInfo().setRenderItems(false);
getAssessmentInstance().start();
getAssessmentInstance().persist();
}
/**
* @see org.olat.qti.process.Navigator#submitItems(org.olat.qti.container.ItemsInput)
*/
public void submitItems(ItemsInput curitsinp) {
clearInfo();
int st = submitOneItem(curitsinp);
if (st != QTIConstants.ITEM_SUBMITTED) {
// time expired or too many attempts-> display a message above the next item or assessment-finished-text
getInfo().setError(st);
getInfo().setRenderItems(false);
}
else { // ok, eval the whole assessment here each time (so after a submitted item, one sees overall progress)
//getAssessmentContext().eval();
getInfo().setMessage(QTIConstants.MESSAGE_ITEM_SUBMITTED);
getInfo().setRenderItems(false);
ItemContext itc = getAssessmentContext().getCurrentSectionContext().getCurrentItemContext();
// check on section feedbacks
Output outp = itc.getOutput();
if (outp != null) getInfo().setCurrentOutput(outp);
// check on item feedback
if (itc.isFeedback()) { // feedback allowed
getInfo().setFeedback(itc.getOutput().hasItem_Responses());
}
if (itc.isHints()) { // hints allowed
if (itc.getOutput().getHint() != null) { // feedback existing on item
getInfo().setHint(true);
}
}
if (itc.isSolutions()) { // solution allowed
if (itc.getOutput().getSolution() != null) { // solution existing on item
getInfo().setSolution(true);
}
}
}
getAssessmentInstance().persist();
}
/**
* @see org.olat.qti.process.Navigator#goToItem(int, int)
*/
public void goToItem(int sectionPos, int itemPos) {
if (getInfo().getStatus() != QTIConstants.ASSESSMENT_RUNNING) throw new RuntimeException("assessment is NOT running yet or anymore");
clearInfo();
AssessmentContext ac = getAssessmentContext();
SectionContext sc = ac.getSectionContext(sectionPos);
ItemContext target = sc.getItemContext(itemPos);
// check if targeted item is still open
if (!ac.isOpen()) {
getInfo().setError(QTIConstants.ERROR_ASSESSMENT_OUTOFTIME);
getInfo().setRenderItems(false);
} else if (!sc.isOpen()) {
getInfo().setError(QTIConstants.ERROR_SECTION_OUTOFTIME);
getInfo().setRenderItems(false);
} else if (!target.isOpen()) {
getInfo().setError(QTIConstants.ERROR_ITEM_OUTOFTIME);
getInfo().setRenderItems(false);
} else {
getInfo().setStatus(QTIConstants.ASSESSMENT_RUNNING);
getInfo().setRenderItems(true);
ac.setCurrentSectionContextPos(sectionPos);
sc.start();
sc.setCurrentItemContextPos(itemPos);
sc.getCurrentItemContext().start();
}
getAssessmentInstance().persist();
}
/**
* go to the section (not the item yet): display the objectives of the section
* @see org.olat.qti.process.Navigator#goToSection(int)
*/
public void goToSection(int sectionPos) {
if (getInfo().getStatus() != QTIConstants.ASSESSMENT_RUNNING) throw new RuntimeException("assessment is NOT running yet or anymore");
clearInfo();
AssessmentContext ac = getAssessmentContext();
ac.setCurrentSectionContextPos(sectionPos);
SectionContext sc = ac.getCurrentSectionContext();
if (!ac.isOpen()) {
getInfo().setError(QTIConstants.ERROR_ASSESSMENT_OUTOFTIME);
getInfo().setRenderItems(false);
} else if (!sc.isOpen()) {
getInfo().setError(QTIConstants.ERROR_SECTION_OUTOFTIME);
getInfo().setRenderItems(false);
} else {
sc.setCurrentItemContextPos(-1); // no current item position, since we display section info only
sc.start();
getInfo().setStatus(QTIConstants.ASSESSMENT_RUNNING);
getInfo().setRenderItems(false); // only section info
getInfo().setMessage(QTIConstants.MESSAGE_SECTION_INFODEMANDED);
}
getAssessmentInstance().persist();
}
}