@Override
  protected Document doGetDocument(Object obj) throws Exception {
    KBArticle kbArticle = (KBArticle) obj;

    Document document = getBaseModelDocument(PORTLET_ID, kbArticle);

    document.addText(Field.CONTENT, HtmlUtil.extractText(kbArticle.getContent()));
    document.addText(Field.DESCRIPTION, kbArticle.getDescription());
    document.addText(Field.TITLE, kbArticle.getTitle());

    document.addKeyword("titleKeyword", kbArticle.getTitle(), true);

    return document;
  }
  protected void notifySubscribers(KBArticle kbArticle, ServiceContext serviceContext)
      throws PortalException, SystemException {

    if (Validator.isNull(serviceContext.getLayoutFullURL())) {
      return;
    }

    PortletPreferences preferences = ServiceContextUtil.getPortletPreferences(serviceContext);

    if (preferences == null) {
      long ownerId = kbArticle.getGroupId();
      int ownerType = PortletKeys.PREFS_OWNER_TYPE_GROUP;
      long plid = PortletKeys.PREFS_PLID_SHARED;
      String portletId = PortletKeys.KNOWLEDGE_BASE_ADMIN;
      String defaultPreferences = null;

      preferences =
          portletPreferencesLocalService.getPreferences(
              kbArticle.getCompanyId(), ownerId, ownerType, plid, portletId, defaultPreferences);
    }

    if (serviceContext.isCommandAdd() && !AdminUtil.getEmailKBArticleAddedEnabled(preferences)) {

      return;
    }

    if (serviceContext.isCommandUpdate()
        && !AdminUtil.getEmailKBArticleUpdatedEnabled(preferences)) {

      return;
    }

    String fromName = AdminUtil.getEmailFromName(preferences);
    String fromAddress = AdminUtil.getEmailFromAddress(preferences);

    String kbArticleContent =
        StringUtil.replace(
            kbArticle.getContent(),
            new String[] {"href=\"/", "src=\"/"},
            new String[] {
              "href=\"" + serviceContext.getPortalURL() + "/",
              "src=\"" + serviceContext.getPortalURL() + "/"
            });

    Map<String, String> kbArticleDiffs = getEmailKBArticleDiffs(kbArticle);

    for (String key : kbArticleDiffs.keySet()) {
      String value =
          StringUtil.replace(
              kbArticleDiffs.get(key),
              new String[] {"href=\"/", "src=\"/"},
              new String[] {
                "href=\"" + serviceContext.getPortalURL() + "/",
                "src=\"" + serviceContext.getPortalURL() + "/"
              });

      kbArticleDiffs.put(key, value);
    }

    String subject = null;
    String body = null;

    if (serviceContext.isCommandAdd()) {
      subject = AdminUtil.getEmailKBArticleAddedSubject(preferences);
      body = AdminUtil.getEmailKBArticleUpdatedBody(preferences);
    } else {
      subject = AdminUtil.getEmailKBArticleUpdatedSubject(preferences);
      body = AdminUtil.getEmailKBArticleUpdatedBody(preferences);
    }

    SubscriptionSender subscriptionSender = new AdminSubscriptionSender(kbArticle, serviceContext);

    subscriptionSender.setBody(body);
    subscriptionSender.setCompanyId(kbArticle.getCompanyId());
    subscriptionSender.setContextAttributes(
        "[$ARTICLE_CONTENT$]",
        kbArticleContent,
        "[$ARTICLE_CONTENT_DIFF$]",
        kbArticleDiffs.get("content"),
        "[$ARTICLE_TITLE$]",
        kbArticle.getTitle(),
        "[$ARTICLE_TITLE_DIFF$]",
        kbArticleDiffs.get("title"));
    subscriptionSender.setContextUserPrefix("ARTICLE");
    subscriptionSender.setFrom(fromAddress, fromName);
    subscriptionSender.setHtmlFormat(true);
    subscriptionSender.setMailId("kb_article", kbArticle.getKbArticleId());
    subscriptionSender.setPortletId(serviceContext.getPortletId());
    subscriptionSender.setReplyToAddress(fromAddress);
    subscriptionSender.setScopeGroupId(kbArticle.getGroupId());
    subscriptionSender.setSubject(subject);
    subscriptionSender.setUserId(kbArticle.getUserId());

    subscriptionSender.addPersistedSubscribers(KBArticle.class.getName(), kbArticle.getGroupId());
    subscriptionSender.addPersistedSubscribers(
        KBArticle.class.getName(), kbArticle.getResourcePrimKey());

    while (!kbArticle.isRoot()) {
      kbArticle =
          getLatestKBArticle(
              kbArticle.getParentResourcePrimKey(), WorkflowConstants.STATUS_APPROVED);

      subscriptionSender.addPersistedSubscribers(
          KBArticle.class.getName(), kbArticle.getResourcePrimKey());
    }

    subscriptionSender.flushNotificationsAsync();
  }
  protected void notifySubscribers(KBComment kbComment, ServiceContext serviceContext)
      throws PortalException {

    PortletPreferences preferences =
        portletPreferencesLocalService.getPreferences(
            kbComment.getCompanyId(),
            kbComment.getGroupId(),
            PortletKeys.PREFS_OWNER_TYPE_GROUP,
            PortletKeys.PREFS_PLID_SHARED,
            PortletKeys.KNOWLEDGE_BASE_ADMIN,
            null);

    if (!AdminUtil.isSuggestionStatusChangeNotificationEnabled(
        kbComment.getStatus(), preferences)) {

      return;
    }

    String fromName = AdminUtil.getEmailFromName(preferences, serviceContext.getCompanyId());
    String fromAddress = AdminUtil.getEmailFromAddress(preferences, kbComment.getCompanyId());

    String subject =
        AdminUtil.getEmailKBArticleSuggestionNotificationSubject(
            kbComment.getStatus(), preferences);
    String body =
        AdminUtil.getEmailKBArticleSuggestionNotificationBody(kbComment.getStatus(), preferences);

    KBArticle kbArticle =
        kbArticleLocalService.getLatestKBArticle(
            kbComment.getClassPK(), WorkflowConstants.STATUS_APPROVED);

    String kbArticleContent =
        StringUtil.replace(
            kbArticle.getContent(),
            new String[] {"href=\"/", "src=\"/"},
            new String[] {
              "href=\"" + serviceContext.getPortalURL() + "/",
              "src=\"" + serviceContext.getPortalURL() + "/"
            });

    SubscriptionSender subscriptionSender = new AdminSubscriptionSender(kbArticle, serviceContext);

    subscriptionSender.setBody(body);
    subscriptionSender.setCompanyId(kbArticle.getCompanyId());
    subscriptionSender.setContextAttribute("[$ARTICLE_CONTENT$]", kbArticleContent, false);
    subscriptionSender.setContextAttribute("[$ARTICLE_TITLE$]", kbArticle.getTitle(), false);
    subscriptionSender.setContextAttribute("[$COMMENT_CONTENT$]", kbComment.getContent(), false);
    subscriptionSender.setContextUserPrefix("ARTICLE");
    subscriptionSender.setFrom(fromAddress, fromName);
    subscriptionSender.setHtmlFormat(true);
    subscriptionSender.setMailId("kb_article", kbArticle.getKbArticleId());
    subscriptionSender.setPortletId(serviceContext.getPortletId());
    subscriptionSender.setReplyToAddress(fromAddress);
    subscriptionSender.setScopeGroupId(kbArticle.getGroupId());
    subscriptionSender.setSubject(subject);
    subscriptionSender.setUserId(kbArticle.getUserId());

    User user = userLocalService.getUser(kbComment.getUserId());

    subscriptionSender.addRuntimeSubscribers(user.getEmailAddress(), user.getFullName());

    subscriptionSender.flushNotificationsAsync();
  }
  @Override
  protected void doImportStagedModel(PortletDataContext portletDataContext, KBArticle kbArticle)
      throws Exception {

    long userId = portletDataContext.getUserId(kbArticle.getUserUuid());

    if (kbArticle.getParentResourcePrimKey() != KBFolderConstants.DEFAULT_PARENT_FOLDER_ID) {

      if (kbArticle.getClassNameId() == kbArticle.getParentResourceClassNameId()) {

        StagedModelDataHandlerUtil.importReferenceStagedModels(
            portletDataContext, kbArticle, KBArticle.class);
      } else {
        StagedModelDataHandlerUtil.importReferenceStagedModels(
            portletDataContext, kbArticle, KBFolder.class);
      }
    }

    Map<Long, Long> kbArticleResourcePrimKeys =
        (Map<Long, Long>) portletDataContext.getNewPrimaryKeysMap(KBArticle.class);

    long parentResourcePrimKey =
        MapUtil.getLong(
            kbArticleResourcePrimKeys,
            kbArticle.getParentResourcePrimKey(),
            KBFolderConstants.DEFAULT_PARENT_FOLDER_ID);

    long resourcePrimaryKey =
        MapUtil.getLong(kbArticleResourcePrimKeys, kbArticle.getResourcePrimKey(), 0);

    if (parentResourcePrimKey == KBFolderConstants.DEFAULT_PARENT_FOLDER_ID) {

      Map<Long, Long> kbFolderResourcePrimKeys =
          (Map<Long, Long>) portletDataContext.getNewPrimaryKeysMap(KBFolder.class);

      parentResourcePrimKey =
          MapUtil.getLong(
              kbFolderResourcePrimKeys,
              kbArticle.getParentResourcePrimKey(),
              KBFolderConstants.DEFAULT_PARENT_FOLDER_ID);
    }

    String[] sections = AdminUtil.unescapeSections(kbArticle.getSections());

    ServiceContext serviceContext = portletDataContext.createServiceContext(kbArticle);

    KBArticle importedKBArticle = null;

    if (portletDataContext.isDataStrategyMirror()) {
      KBArticle existingKBArticle =
          KBArticleUtil.fetchByR_V(resourcePrimaryKey, kbArticle.getVersion());

      if (existingKBArticle == null) {
        existingKBArticle =
            fetchStagedModelByUuidAndGroupId(
                kbArticle.getUuid(), portletDataContext.getScopeGroupId());
      }

      if (existingKBArticle == null) {
        serviceContext.setUuid(kbArticle.getUuid());

        existingKBArticle =
            KBArticleLocalServiceUtil.fetchLatestKBArticle(
                resourcePrimaryKey, WorkflowConstants.STATUS_ANY);

        if (existingKBArticle == null) {
          importedKBArticle =
              KBArticleLocalServiceUtil.addKBArticle(
                  userId,
                  kbArticle.getParentResourceClassNameId(),
                  parentResourcePrimKey,
                  kbArticle.getTitle(),
                  kbArticle.getUrlTitle(),
                  kbArticle.getContent(),
                  kbArticle.getDescription(),
                  kbArticle.getSourceURL(),
                  sections,
                  null,
                  serviceContext);

          KBArticleLocalServiceUtil.updatePriority(
              importedKBArticle.getResourcePrimKey(), kbArticle.getPriority());
        } else {
          KBArticleLocalServiceUtil.updateKBArticle(
              userId,
              existingKBArticle.getResourcePrimKey(),
              kbArticle.getTitle(),
              kbArticle.getContent(),
              kbArticle.getDescription(),
              kbArticle.getSourceURL(),
              sections,
              null,
              null,
              serviceContext);

          KBArticleLocalServiceUtil.moveKBArticle(
              userId,
              existingKBArticle.getResourcePrimKey(),
              existingKBArticle.getParentResourceClassNameId(),
              parentResourcePrimKey,
              kbArticle.getPriority());

          importedKBArticle =
              KBArticleLocalServiceUtil.getLatestKBArticle(
                  existingKBArticle.getResourcePrimKey(), WorkflowConstants.STATUS_APPROVED);
        }
      } else {
        importedKBArticle = existingKBArticle;
      }
    } else {
      importedKBArticle =
          KBArticleLocalServiceUtil.addKBArticle(
              userId,
              kbArticle.getParentResourceClassNameId(),
              parentResourcePrimKey,
              kbArticle.getTitle(),
              kbArticle.getUrlTitle(),
              kbArticle.getContent(),
              kbArticle.getDescription(),
              kbArticle.getSourceURL(),
              sections,
              null,
              serviceContext);

      KBArticleLocalServiceUtil.updatePriority(
          importedKBArticle.getResourcePrimKey(), kbArticle.getPriority());
    }

    importKBArticleAttachments(portletDataContext, kbArticle, importedKBArticle);

    portletDataContext.importClassedModel(kbArticle, importedKBArticle);

    if (!kbArticle.isMain()) {
      kbArticleResourcePrimKeys.put(
          kbArticle.getResourcePrimKey(), importedKBArticle.getResourcePrimKey());
    }
  }