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/*
 * Copyright 1999-2010 University of Chicago
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is
 * distributed on an "AS IS" BASIS,WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied.
 *
 * See the License for the specific language governing permissions and limitations under the License.
 */
package org.globus.gsi.gssapi.jaas;

import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;
import java.security.PrivilegedActionException;

import javax.security.auth.Subject;

/**
 * Standard JAAS implementation of the JAAS Subject helper API.
 * This implementation (because of a problem in JAAS) can cut off
 * the Subject object from the thread context.
 */
public class StandardSubject extends JaasSubject {

    protected StandardSubject() {
	super();
    }

    public Subject getSubject() {
	return Subject.getSubject(AccessController.getContext());
    }

    public Object runAs(Subject subject, PrivilegedAction action) {
	return Subject.doAs(subject, action);
    }

    public Object runAs(Subject subject, PrivilegedExceptionAction action)
	throws PrivilegedActionException {
	return Subject.doAs(subject, action);
    }
}