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// Portions Copyright [2016-2019] [Payara Foundation and/or its affiliates]

package com.sun.enterprise.security.common;

import java.io.Serializable;
import java.security.Principal;

import javax.security.auth.Subject;

import com.sun.enterprise.security.integration.AppServSecurityContext;

/**
 * This base class defines the methods that Security Context should exhibit.
 * There are two places where a derived class are used. They are on the
 * appclient side and ejb side. The derived classes can use thread local
 * storage to store the security contexts.
 *
 * @author Harpreet Singh
 */
public abstract class AbstractSecurityContext implements AppServSecurityContext, Serializable {

    private static final long serialVersionUID = 7118333431442240234L;

    // The principal that this security context represents.
    protected Principal callerPrincipal;
    protected Subject subject;
    protected Principal additionalPrincipal;

    /**
     * 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.
     */
    @Override
    abstract 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.
     */
    @Override
    abstract public Subject getSubject();

    public Principal getAdditionalPrincipal() {
        return additionalPrincipal;
    }

    public void setAdditionalPrincipal(Principal principal) {
        additionalPrincipal = principal;
    }
}











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