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.http.cookie;
29
30 import java.util.Comparator;
31 import java.util.Date;
32
33 import org.apache.http.annotation.Contract;
34 import org.apache.http.annotation.ThreadingBehavior;
35 import org.apache.http.impl.cookie.BasicClientCookie;
36
37 /**
38 * This cookie comparator ensures that cookies with longer paths take precedence over
39 * cookies with shorter path. Among cookies with equal path length cookies with ealier
40 * creation time take precedence over cookies with later creation time
41 *
42 * @since 4.4
43 */
44 @Contract(threading = ThreadingBehavior.IMMUTABLE)
45 public class CookiePriorityComparator implements Comparator<Cookie> {
46
47 public static final CookiePriorityComparatorhtml#CookiePriorityComparator">CookiePriorityComparator INSTANCE = new CookiePriorityComparator();
48
49 private int getPathLength(final Cookie cookie) {
50 final String path = cookie.getPath();
51 return path != null ? path.length() : 1;
52 }
53
54 @Override
55 public int compare(final Cookieokie.html#Cookie">Cookie c1, final Cookie c2) {
56 final int l1 = getPathLength(c1);
57 final int l2 = getPathLength(c2);
58 //TODO: update this class once Cookie interface has been expended with #getCreationTime method
59 final int result = l2 - l1;
60 if (result == 0 && c1 instanceof BasicClientCookiep/impl/cookie/BasicClientCookie.html#BasicClientCookie">BasicClientCookie && c2 instanceof BasicClientCookie) {
61 final Date d1 = ((BasicClientCookie) c1).getCreationDate();
62 final Date d2 = ((BasicClientCookie) c2).getCreationDate();
63 if (d1 != null && d2 != null) {
64 return (int) (d1.getTime() - d2.getTime());
65 }
66 }
67 return result;
68 }
69
70 }