public String getSilverObjectId() {
   if (this.silverObjectId == null) {
     ContentManager contentManager = ContentManagerFactory.getFactory().getContentManager();
     try {
       int objectId = contentManager.getSilverContentId(getId(), getInstanceId());
       if (objectId >= 0) {
         this.silverObjectId = String.valueOf(objectId);
       }
     } catch (ContentManagerException ex) {
       this.silverObjectId = null;
     }
   }
   return this.silverObjectId;
 }
  /*
   * Récupère la liste des experts du domaine de la question
   */
  public Collection<UserDetail> getCurrentQuestionWriters() throws QuestionReplyException {
    OrganizationController orga = getOrganizationController();
    List<UserDetail> arrayUsers = new ArrayList<UserDetail>();

    try {
      ContentManager contentManager = new ContentManager();
      // recupere la liste de toutes les instances d'annuaire
      String[] instances = orga.getCompoId("whitePages");
      List<String> listeInstanceId = new ArrayList<String>();
      int i = 0;
      while (i < instances.length) {
        listeInstanceId.add("whitePages" + instances[i]);
        i++;
      }

      // recupere la liste de tous les experts du domaine de classement de la
      // question
      ContainerPositionInterface position = getSilverContentIdPosition();
      if (position != null && !position.isEmpty()) {
        List<Integer> liste =
            containerContext.getSilverContentIdByPosition(position, listeInstanceId);

        CardManager cardManager = CardManager.getInstance();
        for (Integer integer : liste) {
          int silverContentId = integer.intValue();
          String internalContentId = contentManager.getInternalContentId(silverContentId);
          long userCardId = Long.parseLong(internalContentId);
          Card card = cardManager.getCard(userCardId);
          if (card != null) {
            String idUser = card.getUserId();
            UserDetail user = orga.getUserDetail(idUser);
            if (!exist(user, arrayUsers)) {
              arrayUsers.add(user);
            }
          }
        }
      }
    } catch (Exception e) {
      throw new QuestionReplyException(
          "QuestionReplySessionController.getCurrentQuestionWriters()",
          SilverpeasException.ERROR,
          "questionReply.EX_CANT_GET_EXPERTS",
          "",
          e);
    }

    return arrayUsers;
  }
  public String getCurrentQuestionContentId() {
    String contentId = null;

    if (currentQuestion != null) {
      try {
        ContentManager contentManager = new ContentManager();

        contentId =
            ""
                + contentManager.getSilverContentId(
                    currentQuestion.getPK().getId(), currentQuestion.getInstanceId());
      } catch (ContentManagerException ignored) {
        SilverTrace.error(
            "questionReply",
            "QuestionReplySessionController",
            "questionReply.EX_UNKNOWN_CONTENT_MANAGER",
            ignored);
        contentId = null;
      }
    }

    return contentId;
  }