/*
 * 
 * Copyright 2004 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * The contents of this file are subject to the Sun Community Source
 * License v3.0/Jini Technology Specific Attachment v 1.0 (the
 * "License"). You may not use this file except in compliance with the
 * License. You may obtain a copy of the License at
 * http://wwws.sun.com/software/jini/licensing/SCSL3_JiniTSA1.html.
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 * 
 * The Reference Code is Jini Technology Core Platform code, v2.0. The
 * Developer of the Reference Code is Sun Microsystems, Inc.
 * 
 * Contributor(s): Sun Microsystems, Inc.
 * 
 * The contents of this file comply with the Jini Technology Core
 * Platform Compatibility Kit, v2.0A.
 * 
 * Tester(s): Sun Microsystems, Inc.
 * 
 * Test Platform(s):
 * Java 2 SDK, Standard Edition, Version 1.4.2_03 for Solaris(TM)SPARC/x86
 * Java 2 SDK, Standard Edition, Version 1.4.2_03 for Linux (Intel x86)
 * Java 2 SDK, Standard Edition, Version 1.4.2_03 for Windows (Intel Platform)
 * 
 */

package net.jini.security.proxytrust;

import java.rmi.RemoteException;
import net.jini.security.TrustVerifier;

/**
 * Defines a local interface to obtain a proxy trust verifier. A service that
 * uses specialized proxies (proxies that will not directly be considered
 * trusted by clients) can export a remote object that is an instance of this
 * interface to allow clients to verify that the proxies can be trusted as
 * proxies for the service. The intention is that a remote call to the
 * {@link ProxyTrust#getProxyVerifier ProxyTrust.getProxyVerifier} method of
 * a trusted bootstrap proxy will be implemented (on the server side) by
 * delegating to the corresponding method of this local interface.
 * {@link ProxyTrustExporter} is one example of this form of delegation.
 *
 * @author Sun Microsystems, Inc.
 * @since 2.0
 */
public interface ServerProxyTrust {

    /**
     * Returns a <code>TrustVerifier</code> that can be used to verify that
     * a proxy can be trusted as a proxy for the service; that is, the
     * {@link TrustVerifier#isTrustedObject isTrustedObject} method of the
     * returned verifier can be called with a candidate proxy. The verifier
     * should be able to verify all proxies for the service, including
     * proxies for resources (such as leases and registrations).
     *
     * @return a <code>TrustVerifier</code> that can be used to verify that
     * a proxy can be trusted as a proxy for the service
     * @throws RemoteException if a communication-related exception occurs
     * @throws UnsupportedOperationException if the server is not configured
     * for trust verification
     */
    TrustVerifier getProxyVerifier() throws RemoteException;
}
