| /* |
| * 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.qpid.server.security; |
| |
| import java.io.Serializable; |
| import java.security.Principal; |
| import java.util.Set; |
| |
| import javax.security.auth.Subject; |
| |
| import org.apache.qpid.server.model.ConfiguredObject; |
| |
| |
| public interface QpidPrincipal extends Principal, Serializable |
| { |
| static <P extends Principal> P getSingletonPrincipal(final Subject authSubject, |
| final boolean isPrincipalOptional, |
| final Class<P> principalClazz) |
| { |
| if (authSubject == null) |
| { |
| throw new IllegalArgumentException("No authenticated subject."); |
| } |
| |
| final Set<P> principals = authSubject.getPrincipals(principalClazz); |
| int numberOfAuthenticatedPrincipals = principals.size(); |
| |
| if(numberOfAuthenticatedPrincipals == 0 && isPrincipalOptional) |
| { |
| return null; |
| } |
| else |
| { |
| if (numberOfAuthenticatedPrincipals != 1) |
| { |
| throw new IllegalArgumentException( |
| String.format( |
| "Can't find single %s in the authenticated subject. There were %d " |
| + "%s principals out of a total number of principals of: %s", |
| principalClazz.getSimpleName(), |
| numberOfAuthenticatedPrincipals, |
| principalClazz.getSimpleName(), |
| authSubject.getPrincipals())); |
| } |
| return principals.iterator().next(); |
| } |
| } |
| |
| ConfiguredObject<?> getOrigin(); |
| |
| |
| } |