org.wildfly.security.authz.MappedRoles Maven / Gradle / Ivy
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* Copyright 2018 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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.wildfly.security.authz;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
class MappedRoles implements Roles {
private final Roles delegate;
private final Map> reverseRoleMap;
public MappedRoles(final Roles delegate, final Map> reverseRoleMap) {
this.delegate = delegate;
this.reverseRoleMap = reverseRoleMap;
}
@Override
public boolean contains(String roleName) {
Set rolesToContain = reverseRoleMap.get(roleName);
if (rolesToContain == null) return false;
return delegate.containsAny(rolesToContain);
}
@Override
public Iterator iterator() {
final Iterator iterator = reverseRoleMap.keySet().iterator();
return new Iterator() {
String next = null;
@Override
public boolean hasNext() {
if (next != null) return true;
while (iterator.hasNext()) {
String nextt = iterator.next();
if (delegate.containsAny(reverseRoleMap.get(nextt))) {
next = nextt;
return true;
}
}
return false;
}
@Override
public String next() {
if (! hasNext()) {
throw new NoSuchElementException();
}
final String next = this.next;
this.next = null;
return next;
}
};
}
}