| /* |
| * |
| * 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.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import javax.security.auth.Subject; |
| |
| class CompoundSecurityToken implements SecurityToken |
| { |
| private final Subject _subject; |
| private final AtomicReference<CompoundTokenMapReference> _reference = new AtomicReference<>(); |
| |
| CompoundSecurityToken(final List<AccessControl<?>> accessControls, final Subject subject) |
| { |
| _subject = subject; |
| CompoundTokenMapReference compoundTokenMapReference = new CompoundTokenMapReference(accessControls); |
| _reference.set(compoundTokenMapReference); |
| compoundTokenMapReference.init(subject); |
| } |
| |
| |
| Map<AccessControl<?>, SecurityToken> getCompoundToken(final List<AccessControl<?>> accessControls) |
| { |
| CompoundTokenMapReference ref = _reference.get(); |
| if (ref.getAccessControlList() != accessControls) |
| { |
| CompoundTokenMapReference oldRef = ref; |
| ref = new CompoundTokenMapReference(accessControls); |
| ref.init(_subject); |
| _reference.compareAndSet(oldRef, ref); |
| } |
| return ref.getCompoundTokenMap(); |
| } |
| |
| private static class CompoundTokenMapReference |
| { |
| private final List<AccessControl<?>> _accessControlList; |
| private final Map<AccessControl<?>, SecurityToken> _compoundTokenMap; |
| |
| private CompoundTokenMapReference(final List<AccessControl<?>> accessControlList) |
| { |
| _accessControlList = accessControlList; |
| _compoundTokenMap = new ConcurrentHashMap<>(); |
| } |
| |
| public synchronized void init(Subject subject) |
| { |
| if(_compoundTokenMap.isEmpty()) |
| { |
| for (AccessControl accessControl : _accessControlList) |
| { |
| if(accessControl != null) |
| { |
| SecurityToken token = accessControl.newToken(subject); |
| if(token != null) |
| { |
| _compoundTokenMap.put(accessControl, token); |
| } |
| } |
| } |
| } |
| } |
| |
| public List<AccessControl<?>> getAccessControlList() |
| { |
| return _accessControlList; |
| } |
| |
| public Map<AccessControl<?>, SecurityToken> getCompoundTokenMap() |
| { |
| return _compoundTokenMap; |
| } |
| |
| @Override |
| public boolean equals(final Object o) |
| { |
| if (this == o) |
| { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) |
| { |
| return false; |
| } |
| final CompoundTokenMapReference that = (CompoundTokenMapReference) o; |
| return Objects.equals(_accessControlList, that._accessControlList) && |
| Objects.equals(_compoundTokenMap, that._compoundTokenMap); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Objects.hash(_accessControlList, _compoundTokenMap); |
| } |
| } |
| |
| } |