/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2015, Red Hat Inc, 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 Eclipse Public License 1.0 as
* published by the Free Software Foundation.
*
* 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 Eclipse
* Public License for more details.
*
* You should have received a copy of the Eclipse 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.ironjacamar.validator;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.security.AccessController;
import java.security.PrivilegedAction;
/**
* Privileged Blocks
* @author <a href="mailto:jesper.pedersen@ironjacamar.org">Jesper Pedersen</a>
*/
class SecurityActions
{
/**
* Constructor
*/
private SecurityActions()
{
}
/**
* Get the classloader.
* @param c The class
* @return The classloader
*/
static ClassLoader getClassLoader(final Class<?> c)
{
if (System.getSecurityManager() == null)
return c.getClassLoader();
return AccessController.doPrivileged(new PrivilegedAction<ClassLoader>()
{
public ClassLoader run()
{
return c.getClassLoader();
}
});
}
/**
* Get the thread context class loader
* @return The class loader
*/
static ClassLoader getThreadContextClassLoader()
{
return AccessController.doPrivileged(new PrivilegedAction<ClassLoader>()
{
public ClassLoader run()
{
return Thread.currentThread().getContextClassLoader();
}
});
}
/**
* Set the thread context class loader
* @param cl The class loader
*/
static void setThreadContextClassLoader(final ClassLoader cl)
{
AccessController.doPrivileged(new PrivilegedAction<Object>()
{
public Object run()
{
Thread.currentThread().setContextClassLoader(cl);
return null;
}
});
}
/**
* Get a system property
* @param name The property name
* @return The property value
*/
static String getSystemProperty(final String name)
{
return AccessController.doPrivileged(new PrivilegedAction<String>()
{
public String run()
{
return System.getProperty(name);
}
});
}
/**
* Create an URLClassLoader
* @param urls The urls
* @param parent The parent class loader
* @return The class loader
*/
static URLClassLoader createURLClassLoader(final URL[] urls, final ClassLoader parent)
{
return AccessController.doPrivileged(new PrivilegedAction<URLClassLoader>()
{
public URLClassLoader run()
{
return new URLClassLoader(urls, parent);
}
});
}
/**
* Close an URLClassLoader
* @param cl The class loader
*/
static void closeURLClassLoader(final URLClassLoader cl)
{
AccessController.doPrivileged(new PrivilegedAction<Object>()
{
public Object run()
{
if (cl != null)
{
try
{
cl.close();
}
catch (IOException ioe)
{
// Ignore
}
}
return null;
}
});
}
}