daocasauthoritiespopulator.java

Acegi Security为Spring Framework提供一个兼容的安全认证服务(security services).

/* Copyright 2004 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.cas.populator;

import org.acegisecurity.AuthenticationException;
import org.acegisecurity.providers.cas.CasAuthoritiesPopulator;
import org.acegisecurity.userdetails.UserDetailsService;
import org.acegisecurity.userdetails.UserDetails;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.Assert;


/**
 * Populates the CAS authorities via an {@link UserDetailsService}.
 * 
 * <P>
 * The additional information (username, password, enabled status etc)  an
 * <code>AuthenticationDao</code> implementation provides about  a
 * <code>User</code> is ignored. Only the <code>GrantedAuthority</code>s are
 * relevant to this class.
 * </p>
 *
 * @author Ben Alex
 * @version $Id: DaoCasAuthoritiesPopulator.java,v 1.6 2005/11/30 00:20:12 benalex Exp $
 */
public class DaoCasAuthoritiesPopulator implements CasAuthoritiesPopulator,
    InitializingBean {
    //~ Instance fields ========================================================

    private UserDetailsService userDetailsService;

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

    public void setUserDetailsService(UserDetailsService authenticationDao) {
        this.userDetailsService = authenticationDao;
    }

    public UserDetailsService getUserDetailsService() {
        return userDetailsService;
    }

    public UserDetails getUserDetails(String casUserId)
        throws AuthenticationException {
        return this.userDetailsService.loadUserByUsername(casUserId);
    }

    public void afterPropertiesSet() throws Exception {
        Assert.notNull(this.userDetailsService, "An authenticationDao must be set");
    }
}