001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (C) 2012  Paul Ferraro
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Lesser General Public License as published by
007 * the Free Software Foundation, either version 3 of the License, or
008 * (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Lesser General Public License for more details.
014 *
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018package net.sf.hajdbc.util;
019
020import java.security.AccessController;
021import java.security.PrivilegedAction;
022import java.security.PrivilegedExceptionAction;
023
024public class Security
025{
026        public static <T> T run(PrivilegedAction<T> action)
027        {
028                return (System.getSecurityManager() != null) ? AccessController.doPrivileged(action) : action.run();
029        }
030
031        public static <T> T run(PrivilegedExceptionAction<T> action) throws Exception
032        {
033                return (System.getSecurityManager() != null) ? AccessController.doPrivileged(action) : action.run();
034        }
035
036        public static <T, E extends Exception> T run(PrivilegedExceptionAction<T> action, Class<E> exceptionClass) throws E
037        {
038                try
039                {
040                        return (System.getSecurityManager() != null) ? AccessController.doPrivileged(action) : action.run();
041                }
042                catch (Exception e)
043                {
044                        throw exceptionClass.cast(e);
045                }
046        }
047
048        private Security()
049        {
050                // Hide constructor
051        }
052}