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.runtimeservices.user;
  
  import java.util.Collections;
  import java.util.List;
  
  import jakarta.inject.Named;
  
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.stereotype.Service;
  
  import org.apache.causeway.applib.annotation.PriorityPrecedence;
  import org.apache.causeway.applib.services.user.ImpersonateMenuAdvisor;
  import org.apache.causeway.core.runtimeservices.CausewayModuleCoreRuntimeServices;
  
  /**
   * This default implementation of {@link ImpersonateMenuAdvisor}; simply returns empty lists.
   *
   * <p>
   *  This has the effect that the
   *  {@link org.apache.causeway.applib.services.user.ImpersonateMenu}'s
   *  {@link org.apache.causeway.applib.services.user.ImpersonateMenu.impersonateWithRoles#act(String, List, String) impersonateWithRoles}
   *  action will be hidden.
   * </p>
   *
   * @since 2.0 {@index}
   */
  @Service
  @Named(CausewayModuleCoreRuntimeServices.NAMESPACE + ".ImpersonateMenuAdvisorDefault")
  @jakarta.annotation.Priority(PriorityPrecedence.LAST)
  @Qualifier("Default")
  public class ImpersonateMenuAdvisorDefault implements ImpersonateMenuAdvisor {
  
      @Override
      public List<String> allUserNames() {
          return Collections.emptyList();
      }
  
      @Override
      public List<String> allRoleNames() {
          return Collections.emptyList();
      }
  
      @Override
      public List<String> roleNamesFor(final String username) {
          return Collections.emptyList();
      }
  
      @Override
      public String multiTenancyTokenFor(final String username) {
          return null;
      }
  
  }
  