/* 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.AuthenticationException;

 import org.acegisecurity.AuthenticationManager;

 import org.acegisecurity.GrantedAuthority;

 import org.acegisecurity.providers.UsernamePasswordAuthenticationToken;

 import org.springframework.beans.factory.InitializingBean;

 import org.springframework.util.Assert;

 /**

  * Server-side processor of a remote authentication request.<P>This bean requires no security interceptor to

  * protect it. Instead, the bean uses the configured <code>AuthenticationManager</code> to resolve an authentication

  * request.</p>

  *

  * @author Ben Alex

  * @version $Id: RemoteAuthenticationManagerImpl.java 1496 2006-05-23 13:38:33Z benalex $

  */

 public class RemoteAuthenticationManagerImpl implements RemoteAuthenticationManager, InitializingBean {

     //~ Instance fields ================================================================================================

     private AuthenticationManager authenticationManager;

     //~ Methods ========================================================================================================

     public void afterPropertiesSet() throws Exception {

         Assert.notNull(this.authenticationManager, "authenticationManager is required");

     }

     public GrantedAuthority[] attemptAuthentication(String username, String password)

         throws RemoteAuthenticationException {

         UsernamePasswordAuthenticationToken request = new UsernamePasswordAuthenticationToken(username, password);

         try {

             return authenticationManager.authenticate(request).getAuthorities();

         } catch (AuthenticationException authEx) {

             throw new RemoteAuthenticationException(authEx.getMessage());

         }

     }

     public AuthenticationManager getAuthenticationManager() {

         return authenticationManager;

     }

     public void setAuthenticationManager(AuthenticationManager authenticationManager) {

         this.authenticationManager = authenticationManager;

     }

 }