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.core5.http.impl.routing;
29
30 import org.apache.hc.core5.annotation.Contract;
31 import org.apache.hc.core5.annotation.ThreadingBehavior;
32
33 /**
34 * URI path component pattern matcher.
35 * <p>
36 * Patterns may have three formats:
37 * </p>
38 * <ul>
39 * <li>{@code *}</li>
40 * <li>{@code *<uri-path>}</li>
41 * <li>{@code <uri-path>*}</li>
42 * </ul>
43 *
44 * @since 5.3
45 */
46 @Contract(threading = ThreadingBehavior.STATELESS)
47 public final class PathPatternMatcher {
48
49 public static final PathPatternMatcher INSTANCE = new PathPatternMatcher();
50
51 public boolean match(final String pattern, final String path) {
52 if (pattern.equals("*") || pattern.equals(path)) {
53 return true;
54 }
55 return (pattern.endsWith("*") && path.startsWith(pattern.substring(0, pattern.length() - 1)))
56 || (pattern.startsWith("*") && path.endsWith(pattern.substring(1)));
57 }
58
59 public boolean isBetter(final String pattern, final String bestMatch) {
60 return bestMatch == null
61 || (bestMatch.length() < pattern.length())
62 || (bestMatch.length() == pattern.length() && pattern.endsWith("*"));
63 }
64
65 }