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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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package com.sun.enterprise.security.integration;

import java.security.Principal;
import javax.security.auth.Subject;
import org.jvnet.hk2.annotations.Contract;
import org.jvnet.hk2.annotations.Scoped;
import org.jvnet.hk2.component.PerLookup;

/**
 * The SecurityContext Interface, also provide factory methods
 * 
 */
@Contract
@Scoped(PerLookup.class)
public interface AppServSecurityContext {

    /**
     * This method should  be implemented by the subclasses to
     * return the caller principal. This information may be redundant
     * since the same information can be inferred by inspecting the
     * Credentials of the caller. 
     * @return The caller Principal. 
     */
    public Principal getCallerPrincipal();
    
    /**
     * This method should be implemented by the subclasses to return 
     * the Credentials of the caller principal.
     * @return A credentials object associated with the current client 
     * invocation.
     */
    public Subject getSubject();
    
    /**
     * @return a new instance
     */
    public AppServSecurityContext newInstance(String userName, Subject subject, String realm);
    
    /**
     * @return a new instance
     */
    public AppServSecurityContext newInstance(String userName, Subject subject);
    
    /**
     * set the current security context
     */
    public void setCurrentSecurityContext(AppServSecurityContext context);
     
     /**
      * @return the current security context
      */
     public AppServSecurityContext getCurrentSecurityContext(); 
     /**
      * set the unauthenticated context
      */
     public void setUnauthenticatedSecurityContext();
     
     /**
      * set the SecurityContext with given Principal
      */
     public void setSecurityContextWithPrincipal(Principal principal);
}