mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java@fc2d59ddac77
mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java
Wed, 31 Dec 2014 07:22:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:22:50 +0100
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
- permissions
- -rw-r--r--
Correct previous dual key logic pending first delivery installment.
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 */
28 package ch.boye.httpclientandroidlib.protocol;
30 import java.util.HashMap;
31 import java.util.Iterator;
32 import java.util.Map;
34 /**
35 * Maintains a map of objects keyed by a request URI pattern.
36 * <br>
37 * Patterns may have three formats:
38 * <ul>
39 * <li><code>*</code></li>
40 * <li><code>*<uri></code></li>
41 * <li><code><uri>*</code></li>
42 * </ul>
43 * <br>
44 * This class can be used to resolve an object matching a particular request
45 * URI.
46 *
47 * @since 4.0
48 */
49 public class UriPatternMatcher {
51 /**
52 * TODO: Replace with ConcurrentHashMap
53 */
54 private final Map map;
56 public UriPatternMatcher() {
57 super();
58 this.map = new HashMap();
59 }
61 /**
62 * Registers the given object for URIs matching the given pattern.
63 *
64 * @param pattern the pattern to register the handler for.
65 * @param obj the object.
66 */
67 public synchronized void register(final String pattern, final Object obj) {
68 if (pattern == null) {
69 throw new IllegalArgumentException("URI request pattern may not be null");
70 }
71 this.map.put(pattern, obj);
72 }
74 /**
75 * Removes registered object, if exists, for the given pattern.
76 *
77 * @param pattern the pattern to unregister.
78 */
79 public synchronized void unregister(final String pattern) {
80 if (pattern == null) {
81 return;
82 }
83 this.map.remove(pattern);
84 }
86 /**
87 * @deprecated use {@link #setObjects(Map)}
88 */
89 public synchronized void setHandlers(final Map map) {
90 if (map == null) {
91 throw new IllegalArgumentException("Map of handlers may not be null");
92 }
93 this.map.clear();
94 this.map.putAll(map);
95 }
97 /**
98 * Sets objects from the given map.
99 * @param map the map containing objects keyed by their URI patterns.
100 */
101 public synchronized void setObjects(final Map map) {
102 if (map == null) {
103 throw new IllegalArgumentException("Map of handlers may not be null");
104 }
105 this.map.clear();
106 this.map.putAll(map);
107 }
109 /**
110 * Looks up an object matching the given request URI.
111 *
112 * @param requestURI the request URI
113 * @return object or <code>null</code> if no match is found.
114 */
115 public synchronized Object lookup(String requestURI) {
116 if (requestURI == null) {
117 throw new IllegalArgumentException("Request URI may not be null");
118 }
119 //Strip away the query part part if found
120 int index = requestURI.indexOf("?");
121 if (index != -1) {
122 requestURI = requestURI.substring(0, index);
123 }
125 // direct match?
126 Object obj = this.map.get(requestURI);
127 if (obj == null) {
128 // pattern match?
129 String bestMatch = null;
130 for (Iterator it = this.map.keySet().iterator(); it.hasNext();) {
131 String pattern = (String) it.next();
132 if (matchUriRequestPattern(pattern, requestURI)) {
133 // we have a match. is it any better?
134 if (bestMatch == null
135 || (bestMatch.length() < pattern.length())
136 || (bestMatch.length() == pattern.length() && pattern.endsWith("*"))) {
137 obj = this.map.get(pattern);
138 bestMatch = pattern;
139 }
140 }
141 }
142 }
143 return obj;
144 }
146 /**
147 * Tests if the given request URI matches the given pattern.
148 *
149 * @param pattern the pattern
150 * @param requestUri the request URI
151 * @return <code>true</code> if the request URI matches the pattern,
152 * <code>false</code> otherwise.
153 */
154 protected boolean matchUriRequestPattern(final String pattern, final String requestUri) {
155 if (pattern.equals("*")) {
156 return true;
157 } else {
158 return
159 (pattern.endsWith("*") && requestUri.startsWith(pattern.substring(0, pattern.length() - 1))) ||
160 (pattern.startsWith("*") && requestUri.endsWith(pattern.substring(1, pattern.length())));
161 }
162 }
164 }
