The Tor Browser / file comparison
comparison: mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java
mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java
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| -1:000000000000 | 0:5b0a2734abd3 |
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| 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 ch.boye.httpclientandroidlib.protocol; | |
| 29 | |
| 30 import java.util.HashMap; | |
| 31 import java.util.Iterator; | |
| 32 import java.util.Map; | |
| 33 | |
| 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 { | |
| 50 | |
| 51 /** | |
| 52 * TODO: Replace with ConcurrentHashMap | |
| 53 */ | |
| 54 private final Map map; | |
| 55 | |
| 56 public UriPatternMatcher() { | |
| 57 super(); | |
| 58 this.map = new HashMap(); | |
| 59 } | |
| 60 | |
| 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 } | |
| 73 | |
| 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 } | |
| 85 | |
| 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 } | |
| 96 | |
| 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 } | |
| 108 | |
| 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 } | |
| 124 | |
| 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 } | |
| 145 | |
| 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 } | |
| 163 | |
| 164 } |
