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.secman.delegated.shiro.realm;
  
  import java.util.Collection;
  
  import org.apache.shiro.subject.SimplePrincipalCollection;
  
  @SuppressWarnings("rawtypes")
  public class PrincipalCollectionWithSinglePrincipalForApplicationUserInAnyRealm
  extends SimplePrincipalCollection {
  
      private static final long serialVersionUID = 1L;
  
      @SuppressWarnings("unchecked")
      @Override
      public void add(Object principal, String realmName) {
          if (realmName == null) {
              throw new IllegalArgumentException("realmName argument cannot be null.");
          }
          if (principal == null) {
              throw new IllegalArgumentException("principal argument cannot be null.");
          }
          final Collection principalsLazy = getPrincipalsLazy(realmName);
          if(principal instanceof PrincipalForApplicationUser) {
              principalsLazy.clear();
          }
          principalsLazy.add(principal);
      }
  
      @Override
      public void addAll(Collection principals, String realmName) {
          for (Object principal : principals) {
              add(principal, realmName);
          }
      }
  
  }
  