1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/cookie/CookieIdentityComparator.java $ 3 * $Revision: 618308 $ 4 * $Date: 2008-02-04 07:51:19 -0800 (Mon, 04 Feb 2008) $ 5 * 6 * ==================================================================== 7 * Licensed to the Apache Software Foundation (ASF) under one 8 * or more contributor license agreements. See the NOTICE file 9 * distributed with this work for additional information 10 * regarding copyright ownership. The ASF licenses this file 11 * to you under the Apache License, Version 2.0 (the 12 * "License"); you may not use this file except in compliance 13 * with the License. You may obtain a copy of the License at 14 * 15 * http://www.apache.org/licenses/LICENSE-2.0 16 * 17 * Unless required by applicable law or agreed to in writing, 18 * software distributed under the License is distributed on an 19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20 * KIND, either express or implied. See the License for the 21 * specific language governing permissions and limitations 22 * under the License. 23 * ==================================================================== 24 * 25 * This software consists of voluntary contributions made by many 26 * individuals on behalf of the Apache Software Foundation. For more 27 * information on the Apache Software Foundation, please see 28 * <http://www.apache.org/>. 29 * 30 */ 31 32 package org.apache.http.cookie; 33 34 import java.io.Serializable; 35 import java.util.Comparator; 36 37 /** 38 * This cookie comparator can be used to compare identity of cookies. 39 * 40 * <p> 41 * Cookies are considered identical if their names are equal and 42 * their domain attributes match ignoring case. 43 * </p> 44 * 45 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 46 */ 47 public class CookieIdentityComparator implements Serializable, Comparator<Cookie> { 48 49 private static final long serialVersionUID = 4466565437490631532L; 50 compare(final Cookie c1, final Cookie c2)51 public int compare(final Cookie c1, final Cookie c2) { 52 int res = c1.getName().compareTo(c2.getName()); 53 if (res == 0) { 54 // do not differentiate empty and null domains 55 String d1 = c1.getDomain(); 56 if (d1 == null) { 57 d1 = ""; 58 } 59 String d2 = c2.getDomain(); 60 if (d2 == null) { 61 d2 = ""; 62 } 63 res = d1.compareToIgnoreCase(d2); 64 } 65 return res; 66 } 67 68 } 69