# AbstractKmeliaActionPublicationUserNotification.java

    /*
     * Copyright (C) 2000 - 2024 Silverpeas
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception.  You should have received a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "http://www.silverpeas.org/docs/core/legal/floss_exception.html"
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program.  If not, see <https://www.gnu.org/licenses/>.
     */
    package org.silverpeas.components.kmelia.notification;

    import static org.silverpeas.kernel.util.StringUtil.isDefined;

    import org.silverpeas.core.notification.user.client.constant.NotifAction;
    import org.silverpeas.core.node.model.NodePK;
    import org.silverpeas.core.contribution.publication.model.PublicationDetail;

    /**
     * @author Yohann Chastagnier
     */
    public abstract class AbstractKmeliaActionPublicationUserNotification extends AbstractKmeliaPublicationUserNotification {

      protected AbstractKmeliaActionPublicationUserNotification(NodePK nodePK, PublicationDetail resource,
          NotifAction action) {
        super(nodePK, resource, action);
      }

      @Override
      protected String getSender() {
        return getMostRecentPublicationUpdater();
      }

      /**
       * Gets the most recent identifier of the user which performed the last modification.<br>
       * If no identifier is retrieved, {@link #stop()} method is called and the process of
       * notification building is terminated.
       * @return a user identifier as string.
       */
      String getMostRecentPublicationUpdater() {
        String userId = getResource().getUpdaterId();
        if (!isDefined(userId)) {
          userId = getResource().getCreatorId();
        }
        if (!isDefined(userId)) {
          stop();
        }
        return userId;
      }
    }