SysPropertyActions.java

/*
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  * Copyright 2005, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * This software is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this software; if not, write to the Free
  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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package org.jboss.arquillian.config.impl.extension;

import java.security.AccessController;
import java.security.PrivilegedAction;

/**
 * Priviledged actions for the package
 *
 * @author Scott.Stark@jboss.org
 * @version $Revision: 2787 $
 */
class SysPropertyActions {
    public static String getProperty(String name, String defaultValue) {
        String prop;
        if (System.getSecurityManager() == null) {
            prop = SysProps.NON_PRIVILEDGED.getProperty(name, defaultValue);
        } else {
            prop = SysProps.PRIVILEDGED.getProperty(name, defaultValue);
        }
        return prop;
    }

    interface SysProps {
        SysProps NON_PRIVILEDGED = new SysProps() {
            public String getProperty(final String name, final String defaultValue) {
                return System.getProperty(name, defaultValue);
            }
        };
        SysProps PRIVILEDGED = new SysProps() {
            public String getProperty(final String name, final String defaultValue) {
                final PrivilegedAction<String> action = new PrivilegedAction<String>() {
                    public String run() {
                        return System.getProperty(name, defaultValue);
                    }
                };
                return AccessController.doPrivileged(action);
            }
        };

        String getProperty(String name, String defaultValue);
    }
}