0N/A/*
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0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage sun.security.action;
0N/A
0N/A/**
0N/A * A convenience class for retrieving the integer value of a system property
0N/A * as a privileged action.
0N/A *
0N/A * <p>An instance of this class can be used as the argument of
0N/A * <code>AccessController.doPrivileged</code>.
0N/A *
0N/A * <p>The following code retrieves the integer value of the system
0N/A * property named <code>"prop"</code> as a privileged action. Since it does
0N/A * not pass a default value to be used in case the property
0N/A * <code>"prop"</code> is not defined, it has to check the result for
0N/A * <code>null</code>: <p>
0N/A *
0N/A * <pre>
0N/A * Integer tmp = java.security.AccessController.doPrivileged
0N/A * (new sun.security.action.GetIntegerAction("prop"));
0N/A * int i;
0N/A * if (tmp != null) {
0N/A * i = tmp.intValue();
0N/A * }
0N/A * </pre>
0N/A *
0N/A * <p>The following code retrieves the integer value of the system
0N/A * property named <code>"prop"</code> as a privileged action, and also passes
0N/A * a default value to be used in case the property <code>"prop"</code> is not
0N/A * defined: <p>
0N/A *
0N/A * <pre>
0N/A * int i = ((Integer)java.security.AccessController.doPrivileged(
0N/A * new GetIntegerAction("prop", 3))).intValue();
0N/A * </pre>
0N/A *
0N/A * @author Roland Schemers
0N/A * @see java.security.PrivilegedAction
0N/A * @see java.security.AccessController
0N/A * @since 1.2
0N/A */
0N/A
0N/Apublic class GetIntegerAction
0N/A implements java.security.PrivilegedAction<Integer> {
0N/A private String theProp;
0N/A private int defaultVal;
0N/A private boolean defaultSet = false;
0N/A
0N/A /**
0N/A * Constructor that takes the name of the system property whose integer
0N/A * value needs to be determined.
0N/A *
0N/A * @param theProp the name of the system property.
0N/A */
0N/A public GetIntegerAction(String theProp) {
0N/A this.theProp = theProp;
0N/A }
0N/A
0N/A /**
0N/A * Constructor that takes the name of the system property and the default
0N/A * value of that property.
0N/A *
0N/A * @param theProp the name of the system property.
0N/A * @param defaulVal the default value.
0N/A */
0N/A public GetIntegerAction(String theProp, int defaultVal) {
0N/A this.theProp = theProp;
0N/A this.defaultVal = defaultVal;
0N/A this.defaultSet = true;
0N/A }
0N/A
0N/A /**
0N/A * Determines the integer value of the system property whose name was
0N/A * specified in the constructor.
0N/A *
0N/A * <p>If there is no property of the specified name, or if the property
0N/A * does not have the correct numeric format, then an <code>Integer</code>
0N/A * object representing the default value that was specified in the
0N/A * constructor is returned, or <code>null</code> if no default value was
0N/A * specified.
0N/A *
0N/A * @return the <code>Integer</code> value of the property.
0N/A */
0N/A public Integer run() {
0N/A Integer value = Integer.getInteger(theProp);
0N/A if ((value == null) && defaultSet)
0N/A return new Integer(defaultVal);
0N/A return value;
0N/A }
0N/A}