151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/* 251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved. 351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is free software; you can redistribute it and/or modify it 651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * under the terms of the GNU General Public License version 2 only, as 751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * published by the Free Software Foundation. Oracle designates this 851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * particular file as subject to the "Classpath" exception as provided 951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * by Oracle in the LICENSE file that accompanied this code. 1051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is distributed in the hope that it will be useful, but WITHOUT 1251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * version 2 for more details (a copy is included in the LICENSE file that 1551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * accompanied this code). 1651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * You should have received a copy of the GNU General Public License version 1851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2 along with this work; if not, write to the Free Software Foundation, 1951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or visit www.oracle.com if you need additional information or have any 2351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * questions. 2451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 2551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipackage sun.security.action; 2751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/** 2951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * A convenience class for retrieving the string value of a system 3051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * property as a privileged action. 3151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <p>An instance of this class can be used as the argument of 3351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>AccessController.doPrivileged</code>. 3451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <p>The following code retrieves the value of the system 3651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * property named <code>"prop"</code> as a privileged action: <p> 3751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <pre> 3951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * String s = java.security.AccessController.doPrivileged 4051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * (new GetPropertyAction("prop")); 4151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * </pre> 4251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 4351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @author Roland Schemers 4451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @see java.security.PrivilegedAction 4551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @see java.security.AccessController 4651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @since 1.2 4751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 4851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipublic class GetPropertyAction 5051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski implements java.security.PrivilegedAction<String> { 5151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private String theProp; 5251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private String defaultVal; 5351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 5451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 5551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Constructor that takes the name of the system property whose 5651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * string value needs to be determined. 5751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 5851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param theProp the name of the system property. 5951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 6051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public GetPropertyAction(String theProp) { 6151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski this.theProp = theProp; 6251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 6451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 6551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Constructor that takes the name of the system property and the default 6651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * value of that property. 6751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 6851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param theProp the name of the system property. 6951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param defaulVal the default value. 7051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 7151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public GetPropertyAction(String theProp, String defaultVal) { 7251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski this.theProp = theProp; 7351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski this.defaultVal = defaultVal; 7451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 7551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 7651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 7751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Determines the string value of the system property whose 7851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * name was specified in the constructor. 7951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 8051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the string value of the system property, 8151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or the default value if there is no property with that key. 8251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 8351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public String run() { 8451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski String value = System.getProperty(theProp); 8551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return (value == null) ? defaultVal : value; 8651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 8751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski} 88