# SubscriptionNotifier.java

    /*
     * Copyright (C) 2000 - 2026 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.questionreply.service.notification;

    import org.silverpeas.components.questionreply.model.Question;
    import org.silverpeas.components.questionreply.model.Reply;
    import org.silverpeas.core.admin.user.model.User;
    import org.silverpeas.core.notification.user.UserSubscriptionNotificationBehavior;
    import org.silverpeas.core.subscription.constant.SubscriberType;
    import org.silverpeas.core.subscription.util.SubscriptionSubscriberMapBySubscriberType;

    import java.util.Collection;
    import java.util.MissingResourceException;

    import static org.silverpeas.core.subscription.service.ResourceSubscriptionProvider.getSubscribersOfComponent;

    /**
     * @author ehugonnet
     */
    public class SubscriptionNotifier extends AbstractReplyNotifier
        implements UserSubscriptionNotificationBehavior {

      private final SubscriptionSubscriberMapBySubscriberType subscriberIdsByTypes;

      public SubscriptionNotifier(User sender, Question question, Reply reply) {
        super(question, reply, sender);
        this.subscriberIdsByTypes = getSubscribersOfComponent(question.getInstanceId()).indexBySubscriberType();
      }

      @Override
      protected String getTemplateFileName() {
        return "reply_subscription";
      }

      @Override
      protected String getBundleSubjectKey() {
        return "questionReply.subscription.title";
      }

      @Override
      protected String getTitle(final String language) {
        String translation;
        try {
          translation = getBundle(language).getString(getBundleSubjectKey());
        } catch (MissingResourceException ex) {
          translation = "Answer to %1$s";
        }
        return String.format(translation, getResource().getTitle());
      }

      @Override
      protected Collection<String> getUserIdsToNotify() {
        return subscriberIdsByTypes.get(SubscriberType.USER).getAllIds();
      }

      @Override
      protected Collection<String> getGroupIdsToNotify() {
        return subscriberIdsByTypes.get(SubscriberType.GROUP).getAllIds();
      }
    }