* @return the loaded forum

   */

  private Forum loadOrCreateForum(final UserCourseEnvironment userCourseEnv) {

    updateModuleConfigDefaults(false);       

    final CoursePropertyManager cpm = userCourseEnv.getCourseEnvironment().getCoursePropertyManager();

    final CourseNode thisCourseNode = this;

    Forum theForum = null;

   

    Codepoint.codepoint(FOCourseNode.class, "findCourseNodeProperty"); 

    Property forumKeyProp = cpm.findCourseNodeProperty(thisCourseNode, null, null, FORUM_KEY);

    //System.out.println("System.out.println - findCourseNodeProperty");

    if(forumKeyProp!=null) {

      // Forum does already exist, load forum with key from properties

      Long forumKey = forumKeyProp.getLongValue();

      if (theForum == null) { throw new OLATRuntimeException(FOCourseNode.class, "Tried to load forum with key " + forumKey.longValue() + " in course "

        + userCourseEnv.getCourseEnvironment().getCourseResourceableId() + " for node " + thisCourseNode.getIdent()

        + " as defined in course node property but forum manager could not load forum.", null); }

    } else {

      //creates resourceable from FOCourseNode.class and the current node id as key

      OLATResourceable courseNodeResourceable = OresHelper.createOLATResourceableInstance(FOCourseNode.class, new Long(this.getIdent()));

      Codepoint.codepoint(FOCourseNode.class, "beforeDoInSync");   

      //System.out.println("System.out.println - beforeDoInSync");

      //o_clusterOK by:ld

      theForum = CoordinatorManager.getCoordinator().getSyncer().doInSync(courseNodeResourceable, new SyncerCallback<Forum>(){

        public Forum execute() {

        Forum forum = null;

        Long forumKey;             

        Codepoint.codepoint(FOCourseNode.class,"doInSync");

        //System.out.println("Codepoint - doInSync");

        Property forumKeyProperty = cpm.findCourseNodeProperty(thisCourseNode, null, null, FORUM_KEY);       

        if (forumKeyProperty == null) {

          // First call of forum, create new forum and save forum key as property         

          forumKey = forum.getKey();

          forumKeyProperty = cpm.createCourseNodePropertyInstance(thisCourseNode, null, null, FORUM_KEY, null, forumKey, null, null);

          cpm.saveProperty(forumKeyProperty); 

          //System.out.println("Forum added");

        } else {

          // Forum does already exist, load forum with key from properties

          forumKey = forumKeyProperty.getLongValue();

          if (forum == null) { throw new OLATRuntimeException(FOCourseNode.class, "Tried to load forum with key " + forumKey.longValue() + " in course "

              + userCourseEnv.getCourseEnvironment().getCourseResourceableId() + " for node " + thisCourseNode.getIdent()

              + " as defined in course node property but forum manager could not load forum.", null); }

          }

        //System.out.println("Forum already exists");

   */

  private List convertToThreadTrees(long forumId, ForumCallback forumCallback){

    List messages;

    List topNodeList = new ArrayList();

    Long l = new Long(forumId);

   

    for (Iterator iterTop = messages.iterator(); iterTop.hasNext();) {

      Message msg = (Message) iterTop.next();

      if (msg.getParent() == null) {

        iterTop.remove();

   */

  private MessageNode convertToThreadTree(long topMessageId){

    List messages;

    MessageNode topNode = null;

    Long l = new Long(topMessageId);

    for (Iterator iterTop = messages.iterator(); iterTop.hasNext();) {

      Message msg = (Message) iterTop.next();

      if (msg.getParent() == null) {

        iterTop.remove();

        topNode = new MessageNode(msg);

      throw new AssertException("businessObj must be BusinessGroup");

    BusinessGroup businessGroup = (BusinessGroup)businessObj;

   

    NarrowedPropertyManager npm = NarrowedPropertyManager.getInstance(businessGroup);

    Property forumKeyProperty = npm.findProperty(null, null, CollaborationTools.PROP_CAT_BG_COLLABTOOLS, CollaborationTools.KEY_FORUM);

    // Check if forum-property exist

    if (forumKeyProperty != null) {

      Long forumKey = forumKeyProperty.getLongValue();

      SearchResourceContext forumSearchResourceContext = new SearchResourceContext(parentResourceContext);

      forumSearchResourceContext.setBusinessControlFor(BusinessGroupMainRunController.ORES_TOOLFORUM);

      forumSearchResourceContext.setDocumentType(TYPE);

      forumSearchResourceContext.setDocumentContext(businessGroup.getKey() + " " + forumKey);

      forumSearchResourceContext.setParentContextType(GroupDocument.TYPE);

   * @throws IOException

   */

  private void doIndexForum(SearchResourceContext parentResourceContext, ICourse course, CourseNode courseNode, OlatFullIndexer indexWriter) throws IOException,InterruptedException  {

    if (log.isDebug()) log.debug("Index Course Forum...");

    CoursePropertyManager cpm = course.getCourseEnvironment().getCoursePropertyManager();

    Property forumKeyProperty = cpm.findCourseNodeProperty(courseNode, null, null, FOCourseNode.FORUM_KEY);

    // Check if forum-property exist

    if (forumKeyProperty != null) {

      Long forumKey = forumKeyProperty.getLongValue();

//      forumSearchResourceContext.setBusinessControlFor(BusinessGroupMainRunController.ORES_TOOLFORUM); // TODO:chg: Must be an other Class e.g. CourseRunMainController

      parentResourceContext.setDocumentType(TYPE);

      parentResourceContext.setDocumentContext(course.getResourceableId() + " " + courseNode.getIdent() + " " + forumKey);

      doIndexAllMessages(parentResourceContext, forum, indexWriter );

    this.nodeId = nodeId;

 

    VelocityContainer peekviewVC = createVelocityContainer("peekview");

    // add items, only as many as configured

    // Sort messages by creation date

    Collections.sort(allMessages, dateSortingComparator);

    // only take the configured amount of messages

    List<Message> messages = new ArrayList<Message>();

    for (int i = 0; i < allMessages.size(); i++) {

      final SubscriptionContext subsContext) {

    Codepoint.codepoint(CollaborationTools.class, "createForumController-init");

    final boolean isAdm = isAdmin;

    final boolean isGuest = isGuestOnly;

    final NarrowedPropertyManager npm = NarrowedPropertyManager.getInstance(ores);

   

    // TODO: is there a nicer solution without setting an instance variable

    //final List<Forum> forumHolder = new ArrayList<Forum>();

   

    Codepoint.codepoint(CollaborationTools.class, "pre_sync_enter");

    Forum forum = CoordinatorManager.getCoordinator().getSyncer().doInSync(ores, new SyncerCallback<Forum>(){

      public Forum execute() {

       

        Codepoint.codepoint(CollaborationTools.class, "sync_enter");

       

        //was: synchronized (CollaborationTools.class) {

        Forum aforum;

        Long forumKey;

        Property forumKeyProperty = npm.findProperty(null, null, PROP_CAT_BG_COLLABTOOLS, KEY_FORUM);

        if (forumKeyProperty == null) {

          // First call of forum, create new forum and save

          forumKey = aforum.getKey();

          if (log.isDebug()) {

            log.debug("created new forum in collab tools: foid::" + forumKey.longValue() + " for ores::"

                + ores.getResourceableTypeName() + "/" + ores.getResourceableId());

          }

          forumKeyProperty = npm.createPropertyInstance(null, null, PROP_CAT_BG_COLLABTOOLS, KEY_FORUM, null, forumKey, null, null);

          npm.saveProperty(forumKeyProperty);

        } else {

          // Forum does already exist, load forum with key from properties

          forumKey = forumKeyProperty.getLongValue();

          if (aforum == null) { throw new AssertException("Unable to load forum with key " + forumKey.longValue() + " for ores "

              + ores.getResourceableTypeName() + " with key " + ores.getResourceableId()); }

          if (log.isDebug()) {

            log.debug("loading forum in collab tools from properties: foid::" + forumKey.longValue() + " for ores::"

                + ores.getResourceableTypeName() + "/" + ores.getResourceableId());

    NarrowedPropertyManager npm = NarrowedPropertyManager.getInstance(ores);

    /*

     * delete the forum, if existing

     */

    Property forumKeyProperty = npm.findProperty(null, null, PROP_CAT_BG_COLLABTOOLS, KEY_FORUM);

    if (forumKeyProperty != null) {

      // if there was a forum, delete it

      Long forumKey = forumKeyProperty.getLongValue();

      if (forumKey == null) throw new AssertException("property had no longValue, prop:" + forumKeyProperty);

    }

    /*

     * delete the folder, if existing

     */

    OlatRootFolderImpl vfsContainer = new OlatRootFolderImpl(getFolderRelPath(), null);

    }

  }

  private void archiveForum(OLATResourceable ores, String archivFilePath) {

    Property forumKeyProperty = NarrowedPropertyManager.getInstance(ores).findProperty(null, null, PROP_CAT_BG_COLLABTOOLS, KEY_FORUM);

    if (forumKeyProperty != null) {

      VFSContainer archiveContainer = new LocalFolderImpl(new File(archivFilePath));

      String archiveForumName = "del_forum_" + forumKeyProperty.getLongValue();

      VFSContainer archiveForumContainer = archiveContainer.createChildContainer(archiveForumName);

      log.audit("+-----------------------------------------------------------------------------+");

      TextService languageService = new TextServiceImpl();

     

      int counter = 0;

      if (log.isDebug()) log.info("Found " + allForumKeys.size() + " forums to migrate.");

      for(Long forumKey:allForumKeys) {

        for (Message message : allMessages) {

          try{

            String body = message.getBody();

            Locale locale = languageService.detectLocale(body);

            int characters = languageService.characterCount(body, locale);