content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   *
   */
  
  package org.apache.causeway.extensions.sessionlog.applib.spiimpl;
  
  import java.sql.Timestamp;
  import java.util.Date;
  import java.util.UUID;
  
  import jakarta.annotation.Priority;
  import jakarta.inject.Inject;
  import jakarta.inject.Named;
  
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Propagation;
  
  import org.apache.causeway.applib.annotation.PriorityPrecedence;
  import org.apache.causeway.applib.services.clock.ClockService;
  import org.apache.causeway.applib.services.iactnlayer.InteractionService;
  import org.apache.causeway.applib.services.session.SessionSubscriber;
  import org.apache.causeway.applib.services.xactn.TransactionService;
  import org.apache.causeway.extensions.sessionlog.applib.CausewayModuleExtSessionLogApplib;
  import org.apache.causeway.extensions.sessionlog.applib.dom.SessionLogEntry;
  import org.apache.causeway.extensions.sessionlog.applib.dom.SessionLogEntryRepository;
  
  import lombok.RequiredArgsConstructor;
  
  /**
   * Implementation of the {@link SessionSubscriber} SPI, which persists a log entry to the database (the
   * {@link SessionLogEntry} entity) each time a user either logs on or logs out, or if their session expires.
   *
   * @since 2.0 {@index}
   */
  @Service
  @RequiredArgsConstructor(onConstructor_ = {@Inject})
  @Named(SessionSubscriberForSessionLog.LOGICAL_TYPE_NAME)
  @Priority(PriorityPrecedence.LATE)
  @Qualifier("sessionlog")
  //@Log4j2
  public class SessionSubscriberForSessionLog implements SessionSubscriber {
  
      static final String LOGICAL_TYPE_NAME = CausewayModuleExtSessionLogApplib.NAMESPACE + ".SessionLoggingServiceDefault";
  
      final SessionLogEntryRepository sessionLogEntryRepository;
      final TransactionService transactionService;
      final InteractionService interactionService;
      final ClockService clockService;
  
      @Override
      public void log(final Type type, final String username, final Date date, final CausedBy causedBy, final UUID sessionGuid, final String httpSessionId) {
          interactionService.runAnonymous(() -> {
              transactionService.runTransactional(Propagation.REQUIRES_NEW, () -> {
                  var sessionLogEntryIfAny = sessionLogEntryRepository.findBySessionGuid(sessionGuid);
                  if (type == Type.LOGIN) {
                      if (sessionLogEntryIfAny.isEmpty()) {
                          sessionLogEntryRepository.create(username, sessionGuid, httpSessionId, causedBy, Timestamp.from(date.toInstant()));
                      }
                  } else {
                      sessionLogEntryIfAny.ifPresent(entry -> {
                          entry.setLogoutTimestamp(Timestamp.from(date.toInstant()));
                          entry.setCausedBy(causedBy);
                          transactionService.flushTransaction();
                      });
                  }
              })
              .ifFailureFail(); // throw if rolled back
          });
      }
  }
  