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/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
 *
 * 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.acegisecurity.providers.rcp;

import org.acegisecurity.GrantedAuthority;


/**
 * Allows remote clients to attempt authentication.
 *
 * @author Ben Alex
 * @version $Id: RemoteAuthenticationManager.java 1496 2006-05-23 13:38:33Z benalex $
 */
public interface RemoteAuthenticationManager {
    //~ Methods ========================================================================================================

    /**
     * Attempts to authenticate the remote client using the presented username and password. If authentication
     * is successful, an array of GrantedAuthority[] objects will be returned.In order to
     * maximise remoting protocol compatibility, a design decision was taken to operate with minimal arguments and
     * return only the minimal amount of information required for remote clients to enable/disable relevant user
     * interface commands etc. There is nothing preventing users from implementing their own equivalent package that
     * works with more complex object types.
     *
     * @param username the username the remote client wishes to authenticate with.
     * @param password the password the remote client wishes to authenticate with.
     *
     * @return all of the granted authorities the specified username and password have access to.
     *
     * @throws RemoteAuthenticationException if the authentication failed.
     */
    public GrantedAuthority[] attemptAuthentication(String username, String password)
        throws RemoteAuthenticationException;
}