# KmeliaAttachmentEventListener.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
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    package org.silverpeas.components.kmelia.service;

    import org.silverpeas.core.annotation.Bean;
    import org.silverpeas.core.contribution.attachment.notification.AttachmentEvent;
    import org.silverpeas.core.contribution.attachment.notification.AttachmentRef;
    import org.silverpeas.core.contribution.publication.model.PublicationPK;
    import org.silverpeas.core.notification.system.CDIResourceEventListener;

    import javax.inject.Inject;

    /**
     * @author neysseri
     */
    @Bean
    public class KmeliaAttachmentEventListener extends CDIResourceEventListener<AttachmentEvent> {

      @Inject
      private DefaultKmeliaService kmeliaService;

      @Override
      public void onDeletion(final AttachmentEvent event) {
        AttachmentRef attachment = event.getTransition().getBefore();
        if (attachment != null && isAboutKmeliaPublication(attachment)) {
          kmeliaService.onDocumentDeletion(attachment);
        }
      }

      @Override
      public void onUpdate(final AttachmentEvent event) {
        onCreation(event);
      }

      @Override
      public void onCreation(final AttachmentEvent event) {
        AttachmentRef attachment = event.getTransition().getAfter();
        if (attachment != null) {
          anExternalPublicationElementHaveChanged(attachment, attachment.getUserId());
        }
      }

      private void anExternalPublicationElementHaveChanged(AttachmentRef attachment, String userId) {
        if (isAboutKmeliaPublication(attachment)) {
          PublicationPK pubPK =
              new PublicationPK(attachment.getForeignId(), attachment.getInstanceId());
          kmeliaService.externalElementsOfPublicationHaveChanged(pubPK, userId);
        }
      }

      private boolean isAboutKmeliaPublication(AttachmentRef attachment) {
        return !attachment.getForeignId().startsWith("Node") && (
                attachment.getInstanceId().startsWith("kmax") ||
                attachment.getInstanceId().startsWith("kmelia") ||
                attachment.getInstanceId().startsWith("toolbox"));
      }
    }