1 /* 2 * ==================================================================== 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * ==================================================================== 20 * 21 * This software consists of voluntary contributions made by many 22 * individuals on behalf of the Apache Software Foundation. For more 23 * information on the Apache Software Foundation, please see 24 * <http://www.apache.org/>. 25 * 26 */ 27 28 package org.apache.hc.client5.http.cookie; 29 30 import java.io.Serializable; 31 import java.util.Comparator; 32 33 import org.apache.hc.core5.annotation.Contract; 34 import org.apache.hc.core5.annotation.ThreadingBehavior; 35 36 /** 37 * This cookie comparator can be used to compare identity of cookies. 38 * <p> 39 * Cookies are considered identical if their names are equal and 40 * their domain attributes match ignoring case. 41 * </p> 42 * 43 * @since 4.0 44 */ 45 @Contract(threading = ThreadingBehavior.STATELESS) 46 public class CookieIdentityComparator implements Serializable, Comparator<Cookie> { 47 48 private static final long serialVersionUID = 4466565437490631532L; 49 50 @Override 51 public int compare(final Cookiet5/http/cookie/Cookie.html#Cookie">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 if (res == 0) { 66 String p1 = c1.getPath(); 67 if (p1 == null) { 68 p1 = "/"; 69 } 70 String p2 = c2.getPath(); 71 if (p2 == null) { 72 p2 = "/"; 73 } 74 res = p1.compareTo(p2); 75 } 76 return res; 77 } 78 79 }