org.openl.security.acl.RoleHierarchyImpl Maven / Gradle / Ivy
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package org.openl.security.acl;
import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Set;
import java.util.stream.Collectors;
import org.springframework.security.access.hierarchicalroles.RoleHierarchy;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.openl.rules.security.Group;
public class RoleHierarchyImpl implements RoleHierarchy {
@Override
public Collection getReachableGrantedAuthorities(
Collection authorities) {
if (authorities == null || authorities.isEmpty()) {
return AuthorityUtils.NO_AUTHORITIES;
}
Collection reachableGrantedAuthorities = new HashSet<>();
Queue queue = new LinkedList<>(authorities);
Set p = authorities.stream().map(GrantedAuthority::getAuthority).collect(Collectors.toSet());
while (!queue.isEmpty()) {
GrantedAuthority ga = queue.poll();
if (ga instanceof Group) {
Group group = (Group) ga;
if (group.getPrivileges() != null) {
for (GrantedAuthority g : group.getPrivileges()) {
if (!p.contains(g.getAuthority())) {
queue.add(g);
p.add(g.getAuthority());
}
}
}
}
reachableGrantedAuthorities.add(ga);
}
return reachableGrantedAuthorities;
}
}