Showing the changes to java/pkg/sun/security/action/GetBooleanSecurityPropertyAction.java (1 of 18352 files). Show all
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| 1 | /* | ||
| 2 | * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package sun.security.action; | ||
| 27 | |||
| 28 | import java.security.Security; | ||
| 29 | |||
| 30 | /** | ||
| 31 | * A convenience class for retrieving the boolean value of a security property | ||
| 32 | * as a privileged action. | ||
| 33 | * | ||
| 34 | * <p>An instance of this class can be used as the argument of | ||
| 35 | * <code>AccessController.doPrivileged</code>. | ||
| 36 | * | ||
| 37 | * <p>The following code retrieves the boolean value of the security | ||
| 38 | * property named <code>"prop"</code> as a privileged action: <p> | ||
| 39 | * | ||
| 40 | * <pre> | ||
| 41 | * boolean b = java.security.AccessController.doPrivileged | ||
| 42 | * (new GetBooleanSecurityPropertyAction("prop")).booleanValue(); | ||
| 43 | * </pre> | ||
| 44 | * | ||
| 45 | */ | ||
| 46 | public class GetBooleanSecurityPropertyAction | ||
| 47 | implements java.security.PrivilegedAction<Boolean> { | ||
| 48 | private String theProp; | ||
| 49 | |||
| 50 | /** | ||
| 51 | * Constructor that takes the name of the security property whose boolean | ||
| 52 | * value needs to be determined. | ||
| 53 | * | ||
| 54 | * @param theProp the name of the security property | ||
| 55 | */ | ||
| 56 | public GetBooleanSecurityPropertyAction(String theProp) { | ||
| 57 | this.theProp = theProp; | ||
| 58 | } | ||
| 59 | |||
| 60 | /** | ||
| 61 | * Determines the boolean value of the security property whose name was | ||
| 62 | * specified in the constructor. | ||
| 63 | * | ||
| 64 | * @return the <code>Boolean</code> value of the security property. | ||
| 65 | */ | ||
| 66 | public Boolean run() { | ||
| 67 | boolean b = false; | ||
| 68 | try { | ||
| 69 | String value = Security.getProperty(theProp); | ||
| 70 | b = (value != null) && value.equalsIgnoreCase("true"); | ||
| 71 | } catch (NullPointerException e) {} | ||
| 72 | return b; | ||
| 73 | } | ||
| 74 | } | ||