1 /*
2 * Copyright 2009 Red Hat, Inc.
3 *
4 * Red Hat licenses this file to you under the Apache License, version 2.0
5 * (the "License"); you may not use this file except in compliance with the
6 * License. You may obtain a copy of the License at:
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package org.jboss.netty.handler.codec.http;
17
18 import java.io.Serializable;
19 import java.util.Comparator;
20
21 /**
22 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
23 * @author Andy Taylor (andy.taylor@jboss.org)
24 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
25 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
26 */
27 final class CaseIgnoringComparator implements Comparator<String>, Serializable {
28
29 private static final long serialVersionUID = 4582133183775373862L;
30
31 static final CaseIgnoringComparator INSTANCE = new CaseIgnoringComparator();
32
33 private CaseIgnoringComparator() {
34 super();
35 }
36
37 public int compare(String o1, String o2) {
38 return o1.compareToIgnoreCase(o2);
39 }
40
41 private Object readResolve() {
42 return INSTANCE;
43 }
44 }