/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
* or http://forgerock.org/license/CDDLv1.0.html.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at legal-notices/CDDLv1_0.txt.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2008 Sun Microsystems, Inc.
* Portions Copyright 2015 ForgeRock AS.
*/
package org.opends.guitools.controlpanel.util;
import java.util.Comparator;
/**
* Class used to compare Strings without taking into account the case.
* It can be used to sort Strings in TreeSets for instance.
*/
public class LowerCaseComparator implements Comparator<String>
{
/** {@inheritDoc} */
public int compare(String s1, String s2)
{
if (s1 != null && s2 != null)
{
return s1.toLowerCase().compareTo(s2.toLowerCase());
}
else if (s2 != null)
{
return -1;
}
else if (s1 != null)
{
return 1;
}
else
{
return 0;
}
}
}