001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *  
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *  
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License. 
018 *  
019 */
020package org.apache.directory.shared.ldap.model.name;
021
022
023
024/**
025 * Utility class used to manipulate Dn or Rdn elements.
026 * 
027 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
028 */
029public final class DnUtils
030{
031    /**
032     * Gets the attributeType of a RDN (the left part of the RDN). The RDN is supposed
033     * to contain only one AVA.
034     *
035     * @param rdn the RDN
036     * @return the attributeType 
037     */
038    public static String getRdnAttributeType( String rdn )
039    {
040        int index = rdn.indexOf( '=' );
041        return rdn.substring( 0, index );
042    }
043
044    /**
045     * Gets the value of a RDN ( the right part of the RDN). The RDN is supposed
046     * to contain only one AVA.
047     *
048     * @param rdn the RDN
049     * @return the value of tpart of the RDN
050     */
051    public static String getRdnValue( String rdn )
052    {
053        int index = rdn.indexOf( '=' );
054        return rdn.substring( index + 1, rdn.length() );
055    }
056}