# AlbumMediaEventListener.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:
     * "https://www.silverpeas.org/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.gallery.notification;

    import org.silverpeas.components.gallery.model.AlbumMedia;
    import org.silverpeas.components.gallery.notification.user.AlbumMediaNotificationManager;
    import org.silverpeas.core.admin.user.model.User;
    import org.silverpeas.core.annotation.Bean;
    import org.silverpeas.core.notification.system.CDIResourceEventListener;

    /**
     * A listener about some lifecycle events triggered by the Media engine.
     * @author silveryocha
     */
    @Bean
    public class AlbumMediaEventListener extends CDIResourceEventListener<AlbumMediaEvent> {

      @Override
      public void onCreation(final AlbumMediaEvent event) {
        final AlbumMedia albumMedia = event.getTransition().getAfter();
        final User modifier = getModifier(albumMedia);
        AlbumMediaNotificationManager.get().putCreationOf(albumMedia, modifier);
      }

      @Override
      public void onDeletion(final AlbumMediaEvent event) {
        final AlbumMedia albumMedia = event.getTransition().getBefore();
        final User modifier = getModifier(albumMedia);
        AlbumMediaNotificationManager.get().putDeletionOf(albumMedia, modifier);
      }

      private User getModifier(final AlbumMedia albumMedia) {
        User sender = User.getCurrentRequester();
        if (sender == null) {
          sender = albumMedia.getMedia().getLastUpdater();
        }
        return sender;
      }
    }