/*
* Copyright (C) 2010 eXo Platform SAS.
*
* 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.exoplatform.commons.utils;
import java.io.InputStream;
import java.net.URL;
import java.security.PrivilegedAction;
import java.util.Properties;
/**
* @author <a href="anatoliy.bazko@exoplatform.org">Anatoliy Bazko</a>
* @version $Id: PrivilegedSystemHelper.java 111 2010-11-11 11:11:11Z tolusha $
*
*/
public class PrivilegedSystemHelper
{
/**
* Gets system property in privileged mode.
*
* @param key
* @return
*/
public static String getProperty(final String key)
{
PrivilegedAction<String> action = new PrivilegedAction<String>()
{
public String run()
{
return System.getProperty(key);
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Gets system properties in privileged mode.
*
* @return
*/
public static Properties getProperties()
{
PrivilegedAction<Properties> action = new PrivilegedAction<Properties>()
{
public Properties run()
{
return System.getProperties();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Gets system property in privileged mode.
*
* @param key
*/
public static void setProperty(final String key, final String value)
{
PrivilegedAction<Void> action = new PrivilegedAction<Void>()
{
public Void run()
{
System.setProperty(key, value);
return null;
}
};
SecurityHelper.doPrivilegedAction(action);
}
/**
* Gets system property in privileged mode.
*
* @param key
* @param def
* @return
*/
public static String getProperty(final String key, final String def)
{
PrivilegedAction<String> action = new PrivilegedAction<String>()
{
public String run()
{
return System.getProperty(key, def);
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get resource in privileged mode.
*
* @param name
* @return
*/
public static URL getResource(final String name)
{
PrivilegedAction<URL> action = new PrivilegedAction<URL>()
{
public URL run()
{
return Thread.currentThread().getContextClassLoader().getResource(name);
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get resource as stream in privileged mode.
*
* @param name
* @return
*/
public static InputStream getResourceAsStream(final String name)
{
PrivilegedAction<InputStream> action = new PrivilegedAction<InputStream>()
{
public InputStream run()
{
return Thread.currentThread().getContextClassLoader().getResourceAsStream(name);
}
};
return SecurityHelper.doPrivilegedAction(action);
}
}