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.time.Instant; 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 ensures that cookies with longer paths take precedence over 38 * cookies with shorter path. Among cookies with equal path length cookies with earlier 39 * creation time take precedence over cookies with later creation time 40 * 41 * @since 4.4 42 */ 43 @Contract(threading = ThreadingBehavior.STATELESS) 44 public class CookiePriorityComparator implements Comparator<Cookie> { 45 46 /** 47 * Default instance of {@link CookiePriorityComparator}. 48 */ 49 public static final CookiePriorityComparator INSTANCE = new CookiePriorityComparator(); 50 51 private int getPathLength(final Cookie cookie) { 52 final String path = cookie.getPath(); 53 return path != null ? path.length() : 1; 54 } 55 56 @Override 57 public int compare(final Cookie c1, final Cookie c2) { 58 final int l1 = getPathLength(c1); 59 final int l2 = getPathLength(c2); 60 final int result = l2 - l1; 61 if (result == 0) { 62 final Instant d1 = c1.getCreationInstant(); 63 final Instant d2 = c2.getCreationInstant(); 64 if (d1 != null && d2 != null) { 65 return d1.compareTo(d2); 66 } 67 } 68 return result; 69 } 70 71 }