1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,164 @@
1.4 +/*
1.5 + * ====================================================================
1.6 + * Licensed to the Apache Software Foundation (ASF) under one
1.7 + * or more contributor license agreements. See the NOTICE file
1.8 + * distributed with this work for additional information
1.9 + * regarding copyright ownership. The ASF licenses this file
1.10 + * to you under the Apache License, Version 2.0 (the
1.11 + * "License"); you may not use this file except in compliance
1.12 + * with the License. You may obtain a copy of the License at
1.13 + *
1.14 + * http://www.apache.org/licenses/LICENSE-2.0
1.15 + *
1.16 + * Unless required by applicable law or agreed to in writing,
1.17 + * software distributed under the License is distributed on an
1.18 + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
1.19 + * KIND, either express or implied. See the License for the
1.20 + * specific language governing permissions and limitations
1.21 + * under the License.
1.22 + * ====================================================================
1.23 + *
1.24 + * This software consists of voluntary contributions made by many
1.25 + * individuals on behalf of the Apache Software Foundation. For more
1.26 + * information on the Apache Software Foundation, please see
1.27 + * <http://www.apache.org/>.
1.28 + *
1.29 + */
1.30 +
1.31 +package ch.boye.httpclientandroidlib.protocol;
1.32 +
1.33 +import java.util.HashMap;
1.34 +import java.util.Iterator;
1.35 +import java.util.Map;
1.36 +
1.37 +/**
1.38 + * Maintains a map of objects keyed by a request URI pattern.
1.39 + * <br>
1.40 + * Patterns may have three formats:
1.41 + * <ul>
1.42 + * <li><code>*</code></li>
1.43 + * <li><code>*<uri></code></li>
1.44 + * <li><code><uri>*</code></li>
1.45 + * </ul>
1.46 + * <br>
1.47 + * This class can be used to resolve an object matching a particular request
1.48 + * URI.
1.49 + *
1.50 + * @since 4.0
1.51 + */
1.52 +public class UriPatternMatcher {
1.53 +
1.54 + /**
1.55 + * TODO: Replace with ConcurrentHashMap
1.56 + */
1.57 + private final Map map;
1.58 +
1.59 + public UriPatternMatcher() {
1.60 + super();
1.61 + this.map = new HashMap();
1.62 + }
1.63 +
1.64 + /**
1.65 + * Registers the given object for URIs matching the given pattern.
1.66 + *
1.67 + * @param pattern the pattern to register the handler for.
1.68 + * @param obj the object.
1.69 + */
1.70 + public synchronized void register(final String pattern, final Object obj) {
1.71 + if (pattern == null) {
1.72 + throw new IllegalArgumentException("URI request pattern may not be null");
1.73 + }
1.74 + this.map.put(pattern, obj);
1.75 + }
1.76 +
1.77 + /**
1.78 + * Removes registered object, if exists, for the given pattern.
1.79 + *
1.80 + * @param pattern the pattern to unregister.
1.81 + */
1.82 + public synchronized void unregister(final String pattern) {
1.83 + if (pattern == null) {
1.84 + return;
1.85 + }
1.86 + this.map.remove(pattern);
1.87 + }
1.88 +
1.89 + /**
1.90 + * @deprecated use {@link #setObjects(Map)}
1.91 + */
1.92 + public synchronized void setHandlers(final Map map) {
1.93 + if (map == null) {
1.94 + throw new IllegalArgumentException("Map of handlers may not be null");
1.95 + }
1.96 + this.map.clear();
1.97 + this.map.putAll(map);
1.98 + }
1.99 +
1.100 + /**
1.101 + * Sets objects from the given map.
1.102 + * @param map the map containing objects keyed by their URI patterns.
1.103 + */
1.104 + public synchronized void setObjects(final Map map) {
1.105 + if (map == null) {
1.106 + throw new IllegalArgumentException("Map of handlers may not be null");
1.107 + }
1.108 + this.map.clear();
1.109 + this.map.putAll(map);
1.110 + }
1.111 +
1.112 + /**
1.113 + * Looks up an object matching the given request URI.
1.114 + *
1.115 + * @param requestURI the request URI
1.116 + * @return object or <code>null</code> if no match is found.
1.117 + */
1.118 + public synchronized Object lookup(String requestURI) {
1.119 + if (requestURI == null) {
1.120 + throw new IllegalArgumentException("Request URI may not be null");
1.121 + }
1.122 + //Strip away the query part part if found
1.123 + int index = requestURI.indexOf("?");
1.124 + if (index != -1) {
1.125 + requestURI = requestURI.substring(0, index);
1.126 + }
1.127 +
1.128 + // direct match?
1.129 + Object obj = this.map.get(requestURI);
1.130 + if (obj == null) {
1.131 + // pattern match?
1.132 + String bestMatch = null;
1.133 + for (Iterator it = this.map.keySet().iterator(); it.hasNext();) {
1.134 + String pattern = (String) it.next();
1.135 + if (matchUriRequestPattern(pattern, requestURI)) {
1.136 + // we have a match. is it any better?
1.137 + if (bestMatch == null
1.138 + || (bestMatch.length() < pattern.length())
1.139 + || (bestMatch.length() == pattern.length() && pattern.endsWith("*"))) {
1.140 + obj = this.map.get(pattern);
1.141 + bestMatch = pattern;
1.142 + }
1.143 + }
1.144 + }
1.145 + }
1.146 + return obj;
1.147 + }
1.148 +
1.149 + /**
1.150 + * Tests if the given request URI matches the given pattern.
1.151 + *
1.152 + * @param pattern the pattern
1.153 + * @param requestUri the request URI
1.154 + * @return <code>true</code> if the request URI matches the pattern,
1.155 + * <code>false</code> otherwise.
1.156 + */
1.157 + protected boolean matchUriRequestPattern(final String pattern, final String requestUri) {
1.158 + if (pattern.equals("*")) {
1.159 + return true;
1.160 + } else {
1.161 + return
1.162 + (pattern.endsWith("*") && requestUri.startsWith(pattern.substring(0, pattern.length() - 1))) ||
1.163 + (pattern.startsWith("*") && requestUri.endsWith(pattern.substring(1, pattern.length())));
1.164 + }
1.165 + }
1.166 +
1.167 +}
