/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2008, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file 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.security;

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

/**
 * Priviledged actions for this package
 * 
 * @author Scott.Stark@jboss.org
 * @version $Revision: 85945 $
 */
class SecurityActions
{
   interface SystemPropertyAction
   {
      SystemPropertyAction PRIVILEGED = new SystemPropertyAction()
      {
         public String getProperty(final String name, final String defaultValue)
         {
            String prop = (String) AccessController.doPrivileged(
               new PrivilegedAction()
               {
                  public Object run()
                  {
                     String p = System.getProperty(name, defaultValue);
                     return p;
                  }
               }
            );
            return prop;
         }
      };

      SystemPropertyAction NON_PRIVILEGED = new SystemPropertyAction()
      {
         public String getProperty(final String name, final String defaultValue)
         {
            String prop = System.getProperty(name, defaultValue);
            return prop;
         }
      };

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

   static String getProperty(final String name, final String defaultValue)
   {
      SecurityManager sm = System.getSecurityManager();
      String prop;
      if( sm != null )
      {
         prop = SystemPropertyAction.PRIVILEGED.getProperty(name, defaultValue);
      }
      else
      {
         prop = SystemPropertyAction.NON_PRIVILEGED.getProperty(name, defaultValue);
      }
      return prop;
   }
}