spring security RoleHierarchyVoter 源码
spring security RoleHierarchyVoter 代码
文件路径：/core/src/main/java/org/springframework/security/access/vote/RoleHierarchyVoter.java
/*
* Copyright 2002-2016 the original author or authors.
*
* 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
*
* https://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.springframework.security.access.vote;
import java.util.Collection;
import org.springframework.security.access.hierarchicalroles.RoleHierarchy;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.util.Assert;
/**
* Extended RoleVoter which uses a {@link RoleHierarchy} definition to determine the roles
* allocated to the current user before voting.
*
* @author Luke Taylor
* @since 2.0.4
*/
public class RoleHierarchyVoter extends RoleVoter {
private RoleHierarchy roleHierarchy = null;
public RoleHierarchyVoter(RoleHierarchy roleHierarchy) {
Assert.notNull(roleHierarchy, "RoleHierarchy must not be null");
this.roleHierarchy = roleHierarchy;
}
/**
* Calls the <tt>RoleHierarchy</tt> to obtain the complete set of user authorities.
*/
@Override
Collection<? extends GrantedAuthority> extractAuthorities(Authentication authentication) {
return this.roleHierarchy.getReachableGrantedAuthorities(authentication.getAuthorities());
}
}
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