001/*
002 * The contents of this file are subject to the terms of the Common Development and
003 * Distribution License (the License). You may not use this file except in compliance with the
004 * License.
005 *
006 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
007 * specific language governing permission and limitations under the License.
008 *
009 * When distributing Covered Software, include this CDDL Header Notice in each file and include
010 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
011 * Header, with the fields enclosed by brackets [] replaced by your own identifying
012 * information: "Portions Copyright [year] [name of copyright owner]".
013 *
014 * Copyright 2008 Sun Microsystems, Inc.
015 * Portions Copyright 2015-2016 ForgeRock AS.
016 */
017
018package org.opends.guitools.controlpanel.util;
019
020import java.util.Comparator;
021
022/**
023 * Class used to compare Strings without taking into account the case.
024 * It can be used to sort Strings in TreeSets for instance.
025 */
026public class LowerCaseComparator implements Comparator<String>
027{
028  @Override
029  public int compare(String s1, String s2)
030  {
031    if (s1 != null && s2 != null)
032    {
033      return s1.toLowerCase().compareTo(s2.toLowerCase());
034    }
035    else if (s2 != null)
036    {
037      return -1;
038    }
039    else if (s1 != null)
040    {
041      return 1;
042    }
043    else
044    {
045      return 0;
046    }
047  }
048}