# HistoryItemUIEntity.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 <http://www.gnu.org/licenses/>.
     */

    package org.silverpeas.components.community.control;

    import org.silverpeas.components.community.model.CommunityMembership;
    import org.silverpeas.core.admin.user.model.User;
    import org.silverpeas.core.util.SilverpeasList;

    import java.time.Instant;
    import java.util.Collections;
    import java.util.function.Function;

    import static org.silverpeas.components.community.model.MembershipStatus.REFUSED;
    import static org.silverpeas.components.community.model.MembershipStatus.REMOVED;

    /**
     * UI item for a {@link User} instance.
     */
    public class HistoryItemUIEntity extends MemberUIEntity {

      HistoryItemUIEntity(final CommunityMembership data) {
        super(data, Collections.emptySet());
      }

      public Instant refusedOn() {
        return REFUSED.equals(getData().getStatus()) ? getData().getLastUpdateDate().toInstant() : null;
      }

      public Instant leftOn() {
        return REMOVED.equals(getData().getStatus()) ? getData().getLastUpdateDate().toInstant() : null;
      }

      /**
       * Converts the given data list into a {@link SilverpeasList} of item wrapping the {@link
       * User}.
       * @param values the list of {@link User}.
       * @return the {@link SilverpeasList} of {@link HistoryItemUIEntity}.
       */
      public static <U extends CommunityMembership> SilverpeasList<HistoryItemUIEntity> convertHistoryList(
          final SilverpeasList<U> values) {
        final Function<CommunityMembership, HistoryItemUIEntity> converter = HistoryItemUIEntity::new;
        return values.stream().map(converter).collect(SilverpeasList.collector(values));
      }
    }