org.jboss.util.SysPropertyActions Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
* 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.
*/
package org.jboss.util;
import java.security.PrivilegedAction;
import java.security.AccessController;
/**
* Priviledged actions for the package
* @author [email protected]
* @version $Revision: 2787 $
*/
@SuppressWarnings("unchecked")
class SysPropertyActions
{
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)
{
PrivilegedAction action = new PrivilegedAction()
{
public Object run()
{
return System.getProperty(name, defaultValue);
}
};
return (String) AccessController.doPrivileged(action);
}
};
String getProperty(String name, String defaultValue);
}
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;
}
}