/* * 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. */ // // This source code implements specifications defined by the Java // Community Process. In order to remain compliant with the specification // DO NOT add / change / or delete method signatures! // package javax.security.jacc; import java.security.SecurityPermission; import java.util.Hashtable; import java.util.Set; /** * @version $Rev$ $Date$ */ public final class PolicyContext { private static ThreadLocal contextId = new ThreadLocal(); private static ThreadLocal handlerData = new ThreadLocal(); private static Hashtable handlers = new Hashtable(); private final static SecurityPermission SET_POLICY = new SecurityPermission("setPolicy"); private PolicyContext() { } public static void setContextID(String contextID) { SecurityManager sm = System.getSecurityManager(); if (sm != null) sm.checkPermission(SET_POLICY); contextId.set(contextID); } public static String getContextID() { return (String) contextId.get(); } public static void setHandlerData(Object data) { SecurityManager sm = System.getSecurityManager(); if (sm != null) sm.checkPermission(SET_POLICY); handlerData.set(data); } public static void registerHandler(String key, PolicyContextHandler handler, boolean replace) throws PolicyContextException { if (key == null) throw new IllegalArgumentException("Key must not be null"); if (handler == null) throw new IllegalArgumentException("Handler must not be null"); if (!replace && handlers.containsKey(key)) throw new IllegalArgumentException("A handler has already been registered under '" + key + "' and replace is false."); SecurityManager sm = System.getSecurityManager(); if (sm != null) sm.checkPermission(SET_POLICY); handlers.put(key, handler); } public static Set getHandlerKeys() { return handlers.keySet(); } public static Object getContext(String key) throws PolicyContextException { if (key == null) throw new IllegalArgumentException("Key must not be null"); PolicyContextHandler handler = (PolicyContextHandler) handlers.get(key); if (handler == null) throw new IllegalArgumentException("No handler can be found for the key '" + key + "'"); if (!handler.supports(key)) throw new IllegalArgumentException("Registered handler no longer supports the key '" + key + "'"); SecurityManager sm = System.getSecurityManager(); if (sm != null) sm.checkPermission(SET_POLICY); return handler.getContext(key, handlerData.get()); } }