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.core.transaction.changetracking.events;
  
  import jakarta.annotation.Priority;
  import jakarta.inject.Inject;
  import jakarta.inject.Named;
  
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.context.event.EventListener;
  import org.springframework.stereotype.Service;
  
  import org.apache.causeway.applib.annotation.PriorityPrecedence;
  import org.apache.causeway.applib.mixins.updates.OnUpdatedAt;
  import org.apache.causeway.applib.mixins.updates.OnUpdatedBy;
  import org.apache.causeway.applib.services.clock.ClockService;
  import org.apache.causeway.applib.services.user.UserService;
  import org.apache.causeway.core.transaction.CausewayModuleCoreTransaction;
  
  @Service
  @Named(TimestampService.LOGICAL_TYPE_NAME)
  @Priority(PriorityPrecedence.MIDPOINT)
  @Qualifier("Default")
  public class TimestampService {
  
      public static final String LOGICAL_TYPE_NAME = CausewayModuleCoreTransaction.NAMESPACE + ".TimestampService";
  
      @Inject private UserService userService;
      @Inject private ClockService clockService;
  
      @EventListener(PreStoreEvent.class)
      public void onPreStore(PreStoreEvent event) {
  
          var persistableObject = event.persistableObject();
  
          if(persistableObject instanceof OnUpdatedBy) {
              ((OnUpdatedBy)persistableObject).setUpdatedBy(userService.currentUserNameElseNobody());
          }
  
          if(persistableObject instanceof OnUpdatedAt) {
              ((OnUpdatedAt)persistableObject).setUpdatedAt(clockService.getClock().nowAsJavaSqlTimestamp());
          }
  
      }
  
  }
  