org.wildfly.security.auth.util.CaseNameRewriter Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
* Copyright 2020 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.auth.util;
import java.util.Locale;
import org.wildfly.security.auth.server.NameRewriter;
/**
* A case name rewriter adjusts a principal to upper or lower case.
*
* @author Sonia Zaldana Calles
*/
public final class CaseNameRewriter implements NameRewriter {
private final boolean upperCase;
/**
* Construct a new instance which transforms to upper case.
*/
public CaseNameRewriter() {
this(true);
}
/**
* Construct a new instance.
*
* @param upperCase {@code true} if the principal should be converted to upper case,
* {@code false} if the principal should be converted to lower case.
*/
public CaseNameRewriter(boolean upperCase) {
this.upperCase = upperCase;
}
/**
* Rewrite a name.
*
* @param original the original name
*
* @return the rewritten name
*/
@Override
public String rewriteName(String original) {
if (original == null) {
return null;
}
return (upperCase) ? original.toUpperCase(Locale.ROOT) : original.toLowerCase(Locale.ROOT);
}
}