Examples with TreeVisitor org.olat.core.util.tree.TreeVisitor used on opensource projects

Example 31 with TreeVisitor

use of org.olat.core.util.tree.TreeVisitor in project OpenOLAT by OpenOLAT.

the class DocumentPoolNotificationsHandler method createSubscriptionInfo.

@Override
public SubscriptionInfo createSubscriptionInfo(Subscriber subscriber, Locale locale, Date compareDate) {
    Publisher p = subscriber.getPublisher();
    Date latestNews = p.getLatestNewsDate();
    try {
        SubscriptionInfo si;
        String taxonomyKey = documentPoolModule.getTaxonomyTreeKey();
        if (notificationsManager.isPublisherValid(p) && compareDate.before(latestNews) && StringHelper.isLong(taxonomyKey)) {
            Taxonomy taxonomy = taxonomyService.getTaxonomy(new TaxonomyRefImpl(new Long(taxonomyKey)));
            if (taxonomy == null) {
                return notificationsManager.getNoSubscriptionInfo();
            }
            Identity identity = subscriber.getIdentity();
            Roles roles = securityManager.getRoles(identity);
            boolean isTaxonomyAdmin = roles.isOLATAdmin();
            Translator translator = Util.createPackageTranslator(DocumentPoolMainController.class, locale);
            String templates = translator.translate("document.pool.templates");
            TaxonomyTreeBuilder builder = new TaxonomyTreeBuilder(taxonomy, identity, null, isTaxonomyAdmin, documentPoolModule.isTemplatesDirectoryEnabled(), templates, locale);
            TreeModel model = builder.buildTreeModel();
            si = new SubscriptionInfo(subscriber.getKey(), p.getType(), getTitleItemForPublisher(), null);
            new TreeVisitor(node -> {
                TaxonomyTreeNode tNode = (TaxonomyTreeNode) node;
                if (tNode.getTaxonomyLevel() != null && tNode.isDocumentsLibraryEnabled() && tNode.isCanRead()) {
                    VFSContainer container = taxonomyService.getDocumentsLibrary(tNode.getTaxonomyLevel());
                    String prefixBusinessPath = "[DocumentPool:" + taxonomy.getKey() + "][TaxonomyLevel:" + tNode.getTaxonomyLevel().getKey() + "][path=";
                    createSubscriptionInfo(container, prefixBusinessPath, compareDate, si, p, translator);
                } else if (tNode.getType() == TaxonomyTreeNodeType.templates) {
                    VFSContainer container = taxonomyService.getDocumentsLibrary(taxonomy);
                    String prefixBusinessPath = "[DocumentPool:" + taxonomy.getKey() + "][Templates:0s][path=";
                    createSubscriptionInfo(container, prefixBusinessPath, compareDate, si, p, translator);
                }
            }, model.getRootNode(), false).visitAll();
        } else {
            si = NotificationsManager.getInstance().getNoSubscriptionInfo();
        }
        return si;
    } catch (Exception e) {
        log.error("Cannot create document pool notifications for subscriber: " + subscriber.getKey(), e);
        return notificationsManager.getNoSubscriptionInfo();
    }
}

Example 32 with TreeVisitor

use of org.olat.core.util.tree.TreeVisitor in project OpenOLAT by OpenOLAT.

the class ForumArchiveManager method formatForum.

/**
 * @param topNodeList
 * @param forumFormatter
 * @param metaInfo
 * @return
 */
private String formatForum(List<MessageNode> topNodeList, ForumFormatter forumFormatter, Long forumId) {
    forumFormatter.setForumKey(forumId);
    StringBuilder formattedForum = new StringBuilder();
    forumFormatter.openForum();
    for (Iterator<MessageNode> iterTop = topNodeList.iterator(); iterTop.hasNext(); ) {
        MessageNode mn = iterTop.next();
        // a new top thread starts, inform formatter
        forumFormatter.openThread();
        TreeVisitor tv = new TreeVisitor(forumFormatter, mn, false);
        tv.visitAll();
        // commit
        formattedForum.append(forumFormatter.closeThread());
    }
    return formattedForum.append(forumFormatter.closeForum().toString()).toString();
}

Example 33 with TreeVisitor

use of org.olat.core.util.tree.TreeVisitor in project OpenOLAT by OpenOLAT.

the class ModifyCourseEvent method deleteCourse.

/**
 * Delete a course including its course folder and all references to resources
 * this course holds.
 *
 * @param res
 */
public static void deleteCourse(RepositoryEntry entry, OLATResource res) {
    final long start = System.currentTimeMillis();
    log.info("deleteCourse: starting to delete course. res=" + res);
    PersistingCourseImpl course = null;
    try {
        course = (PersistingCourseImpl) loadCourse(res);
    } catch (CorruptedCourseException e) {
        log.error("Try to delete a corrupted course, I make want I can.");
    }
    // call cleanupOnDelete for nodes
    if (course != null) {
        Visitor visitor = new NodeDeletionVisitor(course);
        TreeVisitor tv = new TreeVisitor(visitor, course.getRunStructure().getRootNode(), true);
        tv.visitAll();
    }
    // delete assessment notifications
    OLATResourceable assessmentOres = OresHelper.createOLATResourceableInstance(CourseModule.ORES_COURSE_ASSESSMENT, res.getResourceableId());
    NotificationsManager.getInstance().deletePublishersOf(assessmentOres);
    // delete all course notifications
    NotificationsManager.getInstance().deletePublishersOf(res);
    // delete calendar subscription
    clearCalenderSubscriptions(res, course);
    // the course folder which is deleted right after)
    if (course != null) {
        CourseConfigManagerImpl.getInstance().deleteConfigOf(course);
    }
    CoreSpringFactory.getImpl(TaskExecutorManager.class).delete(res);
    // delete course group- and rightmanagement
    CourseGroupManager courseGroupManager = PersistingCourseGroupManager.getInstance(res);
    courseGroupManager.deleteCourseGroupmanagement();
    // delete all remaining course properties
    CoursePropertyManager propertyManager = PersistingCoursePropertyManager.getInstance(res);
    propertyManager.deleteAllCourseProperties();
    // delete course calendar
    CoreSpringFactory.getImpl(ImportToCalendarManager.class).deleteCourseImportedCalendars(res);
    CoreSpringFactory.getImpl(CalendarManager.class).deleteCourseCalendar(res);
    // delete IM messages
    CoreSpringFactory.getImpl(InstantMessagingService.class).deleteMessages(res);
    // delete tasks
    CoreSpringFactory.getImpl(GTAManager.class).deleteAllTaskLists(entry);
    // cleanup cache
    removeFromCache(res.getResourceableId());
    // TODO: ld: broadcast event: DeleteCourseEvent
    // Everything is deleted, so we could get rid of course logging
    // with the change in user audit logging - which now all goes into a DB
    // we no longer do this though!
    // delete course directory
    VFSContainer fCourseBasePath = getCourseBaseContainer(res.getResourceableId());
    VFSStatus status = fCourseBasePath.deleteSilently();
    boolean deletionSuccessful = (status == VFSConstants.YES || status == VFSConstants.SUCCESS);
    log.info("deleteCourse: finished deletion. res=" + res + ", deletion successful: " + deletionSuccessful + ", duration: " + (System.currentTimeMillis() - start) + " ms.");
}

Example 34 with TreeVisitor

use of org.olat.core.util.tree.TreeVisitor in project OpenOLAT by OpenOLAT.

the class NodeExportVisitor method exportToFilesystem.

/**
 * @see org.olat.course.ICourse#exportToFilesystem(java.io.File)
 * <p>
 * See OLAT-5368: Course Export can take longer than say 2min.
 * <p>
 */
@Override
public void exportToFilesystem(OLATResource originalCourseResource, File exportDirectory, boolean runtimeDatas, boolean backwardsCompatible) {
    long s = System.currentTimeMillis();
    log.info("exportToFilesystem: exporting course " + this + " to " + exportDirectory + "...");
    File fCourseBase = getCourseBaseContainer().getBasefile();
    // make the folder structure
    File fExportedDataDir = new File(exportDirectory, EXPORTED_DATA_FOLDERNAME);
    fExportedDataDir.mkdirs();
    // export course config
    FileUtils.copyFileToDir(new File(fCourseBase, CourseConfigManager.COURSECONFIG_XML), exportDirectory, "course export courseconfig");
    // export business groups
    CourseEnvironmentMapper envMapper = getCourseEnvironment().getCourseGroupManager().getBusinessGroupEnvironment();
    if (backwardsCompatible) {
        // prevents duplicate names
        envMapper.avoidDuplicateNames();
    }
    getCourseEnvironment().getCourseGroupManager().exportCourseBusinessGroups(fExportedDataDir, envMapper, runtimeDatas, backwardsCompatible);
    if (backwardsCompatible) {
        XStream xstream = CourseXStreamAliases.getReadCourseXStream();
        Structure exportedStructure = (Structure) XStreamHelper.readObject(xstream, new File(fCourseBase, RUNSTRUCTURE_XML));
        visit(new NodePostExportVisitor(envMapper, backwardsCompatible), exportedStructure.getRootNode());
        XStreamHelper.writeObject(xstream, new File(exportDirectory, RUNSTRUCTURE_XML), exportedStructure);
        CourseEditorTreeModel exportedEditorModel = (CourseEditorTreeModel) XStreamHelper.readObject(xstream, new File(fCourseBase, EDITORTREEMODEL_XML));
        visit(new NodePostExportVisitor(envMapper, backwardsCompatible), exportedEditorModel.getRootNode());
        XStreamHelper.writeObject(xstream, new File(exportDirectory, EDITORTREEMODEL_XML), exportedEditorModel);
    } else {
        // export editor structure
        FileUtils.copyFileToDir(new File(fCourseBase, EDITORTREEMODEL_XML), exportDirectory, "course export exitortreemodel");
        // export run structure
        FileUtils.copyFileToDir(new File(fCourseBase, RUNSTRUCTURE_XML), exportDirectory, "course export runstructure");
    }
    // export layout and media folder
    FileUtils.copyDirToDir(new File(fCourseBase, "layout"), exportDirectory, "course export layout folder");
    FileUtils.copyDirToDir(new File(fCourseBase, "media"), exportDirectory, "course export media folder");
    // export course folder
    FileUtils.copyDirToDir(getIsolatedCourseBaseFolder(), exportDirectory, "course export folder");
    // export any node data
    log.info("exportToFilesystem: exporting course " + this + ": exporting all nodes...");
    Visitor visitor = new NodeExportVisitor(fExportedDataDir, this);
    TreeVisitor tv = new TreeVisitor(visitor, getEditorTreeModel().getRootNode(), true);
    tv.visitAll();
    log.info("exportToFilesystem: exporting course " + this + ": exporting all nodes...done.");
    // OLAT-5368: do intermediate commit to avoid transaction timeout
    // discussion intermediatecommit vs increased transaction timeout:
    // pro intermediatecommit: not much
    // pro increased transaction timeout: would fix OLAT-5368 but only move the problem
    // @TODO OLAT-2597: real solution is a long-running background-task concept...
    DBFactory.getInstance().intermediateCommit();
    // export shared folder
    CourseConfig config = getCourseConfig();
    if (config.hasCustomSharedFolder()) {
        log.info("exportToFilesystem: exporting course " + this + ": shared folder...");
        if (!SharedFolderManager.getInstance().exportSharedFolder(config.getSharedFolderSoftkey(), fExportedDataDir)) {
            // export failed, delete reference to shared folder in the course config
            log.info("exportToFilesystem: exporting course " + this + ": export of shared folder failed.");
            config.setSharedFolderSoftkey(CourseConfig.VALUE_EMPTY_SHAREDFOLDER_SOFTKEY);
            CourseConfigManagerImpl.getInstance().saveConfigTo(this, config);
        }
        log.info("exportToFilesystem: exporting course " + this + ": shared folder...done.");
    }
    // OLAT-5368: do intermediate commit to avoid transaction timeout
    // discussion intermediatecommit vs increased transaction timeout:
    // pro intermediatecommit: not much
    // pro increased transaction timeout: would fix OLAT-5368 but only move the problem
    // @TODO OLAT-2597: real solution is a long-running background-task concept...
    DBFactory.getInstance().intermediateCommit();
    // export glossary
    if (config.hasGlossary()) {
        log.info("exportToFilesystem: exporting course " + this + ": glossary...");
        if (!GlossaryManager.getInstance().exportGlossary(config.getGlossarySoftKey(), fExportedDataDir)) {
            // export failed, delete reference to glossary in the course config
            log.info("exportToFilesystem: exporting course " + this + ": export of glossary failed.");
            config.setGlossarySoftKey(null);
            CourseConfigManagerImpl.getInstance().saveConfigTo(this, config);
        }
        log.info("exportToFilesystem: exporting course " + this + ": glossary...done.");
    }
    // OLAT-5368: do intermediate commit to avoid transaction timeout
    // discussion intermediatecommit vs increased transaction timeout:
    // pro intermediatecommit: not much
    // pro increased transaction timeout: would fix OLAT-5368 but only move the problem
    // @TODO OLAT-2597: real solution is a long-running background-task concept...
    DBFactory.getInstance().intermediateCommit();
    log.info("exportToFilesystem: exporting course " + this + ": configuration and repo data...");
    // export configuration file
    FileUtils.copyFileToDir(new File(fCourseBase, CourseConfigManager.COURSECONFIG_XML), exportDirectory, "course export configuration and repo info");
    // export repo metadata
    RepositoryManager rm = RepositoryManager.getInstance();
    RepositoryEntry myRE = rm.lookupRepositoryEntry(this, true);
    RepositoryEntryImportExport importExport = new RepositoryEntryImportExport(myRE, fExportedDataDir);
    importExport.exportDoExportProperties();
    // OLAT-5368: do intermediate commit to avoid transaction timeout
    // discussion intermediatecommit vs increased transaction timeout:
    // pro intermediatecommit: not much
    // pro increased transaction timeout: would fix OLAT-5368 but only move the problem
    // @TODO OLAT-2597: real solution is a long-running background-task concept...
    DBFactory.getInstance().intermediateCommit();
    // export reminders
    CoreSpringFactory.getImpl(ReminderService.class).exportReminders(myRE, fExportedDataDir);
    log.info("exportToFilesystem: exporting course " + this + " to " + exportDirectory + " done.");
    log.info("finished export course '" + getCourseTitle() + "' in t=" + Long.toString(System.currentTimeMillis() - s));
}

Example 35 with TreeVisitor

use of org.olat.core.util.tree.TreeVisitor in project OpenOLAT by OpenOLAT.

the class AssessmentHelper method getAssessableNodes.

/**
 * Get all assessable nodes including the root node (if assessable)
 *
 * @param editorModel
 * @param excludeNode Node that should be excluded in the list, e.g. the
 *          current node or null if all assessable nodes should be used
 * @return List of assessable course nodes
 */
public static List<CourseNode> getAssessableNodes(final CourseEditorTreeModel editorModel, final CourseNode excludeNode) {
    CourseEditorTreeNode rootNode = (CourseEditorTreeNode) editorModel.getRootNode();
    final List<CourseNode> nodes = new ArrayList<CourseNode>();
    // visitor class: takes all assessable nodes if not the exclude node and
    // puts
    // them into the nodes list
    Visitor visitor = new Visitor() {

        @Override
        public void visit(INode node) {
            CourseEditorTreeNode editorNode = (CourseEditorTreeNode) node;
            CourseNode courseNode = editorModel.getCourseNode(node.getIdent());
            if (!editorNode.isDeleted() && (courseNode != excludeNode)) {
                if (checkIfNodeIsAssessable(courseNode)) {
                    nodes.add(courseNode);
                }
            }
        }
    };
    // not visit beginning at the root node
    TreeVisitor tv = new TreeVisitor(visitor, rootNode, false);
    tv.visitAll();
    return nodes;
}