org.jboss.security.plugins.mapping.SecurityActions Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source
* Copyright 2007, 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.security.plugins.mapping;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
/**
* Privileged Blocks
* @author [email protected]
* @since Jan 3, 2008
* @version $Revision$
*/
class SecurityActions
{
static void setContextClassLoader(final ClassLoader tccl) throws PrivilegedActionException
{
AccessController.doPrivileged(new PrivilegedExceptionAction()
{
public ClassLoader run()
{
Thread.currentThread().setContextClassLoader(tccl);
return null;
}
});
}
static ClassLoader getContextClassLoader()
{
return AccessController.doPrivileged(new PrivilegedAction()
{
public ClassLoader run()
{
return Thread.currentThread().getContextClassLoader();
}
});
}
static Class loadClass(final String name) throws PrivilegedActionException
{
return AccessController.doPrivileged(new PrivilegedExceptionAction>()
{
public Class run() throws PrivilegedActionException
{
try
{
return getClass().getClassLoader().loadClass(name);
}
catch (Exception ignore)
{
try
{
return getContextClassLoader().loadClass(name);
}
catch (Exception e)
{
throw new PrivilegedActionException(e);
}
}
}
});
}
static Class loadClass(final ClassLoader cl, final String name) throws PrivilegedActionException
{
return AccessController.doPrivileged(new PrivilegedExceptionAction>()
{
public Class run() throws PrivilegedActionException
{
if(cl == null)
{
return loadClass(name);
}
try
{
return cl.loadClass(name);
}
catch (Exception ignore)
{
return loadClass(name);
}
}
});
}
}