SecurityActions.java Source code

Introduction

Here is the source code for SecurityActions.java

Source

/*
  * JBoss, Home of Professional Open Source
  * Copyright 2005, 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.
  */

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

/** A collection of privileged actions
 * @author Clebert Suconic
 */
class SecurityActions {
    static ClassLoader getTCL() {
        if (System.getSecurityManager() == null) {
            return Thread.currentThread().getContextClassLoader();
        } else {
            return AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
                public ClassLoader run() {
                    return Thread.currentThread().getContextClassLoader();
                }
            });
        }
    }

    static ClassLoader getClassLoader(final Class<?> clazz) {
        if (System.getSecurityManager() == null) {
            return clazz.getClassLoader();
        } else {
            return AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
                public ClassLoader run() {
                    return clazz.getClassLoader();
                }
            });
        }

    }

    static void setTCL(final ClassLoader tcl) {
        if (System.getSecurityManager() == null) {
            Thread.currentThread().setContextClassLoader(tcl);
        } else {
            AccessController.doPrivileged(new PrivilegedAction<Object>() {
                public Object run() {
                    Thread.currentThread().setContextClassLoader(tcl);
                    return null;
                }
            });
        }
    }

}