diff options
Diffstat (limited to 'mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java')
-rw-r--r-- | mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java new file mode 100644 index 000000000..77c46a70c --- /dev/null +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/UriPatternMatcher.java @@ -0,0 +1,165 @@ +/* + * ==================================================================== + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * <http://www.apache.org/>. + * + */ + +package ch.boye.httpclientandroidlib.protocol; + +import java.util.HashMap; +import java.util.Map; + +import ch.boye.httpclientandroidlib.annotation.GuardedBy; +import ch.boye.httpclientandroidlib.annotation.ThreadSafe; +import ch.boye.httpclientandroidlib.util.Args; + +/** + * Maintains a map of objects keyed by a request URI pattern. + * <br> + * Patterns may have three formats: + * <ul> + * <li><code>*</code></li> + * <li><code>*<uri></code></li> + * <li><code><uri>*</code></li> + * </ul> + * <br> + * This class can be used to resolve an object matching a particular request + * URI. + * + * @since 4.0 + */ +@ThreadSafe +public class UriPatternMatcher<T> { + + @GuardedBy("this") + private final Map<String, T> map; + + public UriPatternMatcher() { + super(); + this.map = new HashMap<String, T>(); + } + + /** + * Registers the given object for URIs matching the given pattern. + * + * @param pattern the pattern to register the handler for. + * @param obj the object. + */ + public synchronized void register(final String pattern, final T obj) { + Args.notNull(pattern, "URI request pattern"); + this.map.put(pattern, obj); + } + + /** + * Removes registered object, if exists, for the given pattern. + * + * @param pattern the pattern to unregister. + */ + public synchronized void unregister(final String pattern) { + if (pattern == null) { + return; + } + this.map.remove(pattern); + } + + /** + * @deprecated (4.1) do not use + */ + @Deprecated + public synchronized void setHandlers(final Map<String, T> map) { + Args.notNull(map, "Map of handlers"); + this.map.clear(); + this.map.putAll(map); + } + + /** + * @deprecated (4.1) do not use + */ + @Deprecated + public synchronized void setObjects(final Map<String, T> map) { + Args.notNull(map, "Map of handlers"); + this.map.clear(); + this.map.putAll(map); + } + + /** + * @deprecated (4.1) do not use + */ + @Deprecated + public synchronized Map<String, T> getObjects() { + return this.map; + } + + /** + * Looks up an object matching the given request path. + * + * @param path the request path + * @return object or <code>null</code> if no match is found. + */ + public synchronized T lookup(final String path) { + Args.notNull(path, "Request path"); + // direct match? + T obj = this.map.get(path); + if (obj == null) { + // pattern match? + String bestMatch = null; + for (final String pattern : this.map.keySet()) { + if (matchUriRequestPattern(pattern, path)) { + // we have a match. is it any better? + if (bestMatch == null + || (bestMatch.length() < pattern.length()) + || (bestMatch.length() == pattern.length() && pattern.endsWith("*"))) { + obj = this.map.get(pattern); + bestMatch = pattern; + } + } + } + } + return obj; + } + + /** + * Tests if the given request path matches the given pattern. + * + * @param pattern the pattern + * @param path the request path + * @return <code>true</code> if the request URI matches the pattern, + * <code>false</code> otherwise. + */ + protected boolean matchUriRequestPattern(final String pattern, final String path) { + if (pattern.equals("*")) { + return true; + } else { + return + (pattern.endsWith("*") && path.startsWith(pattern.substring(0, pattern.length() - 1))) || + (pattern.startsWith("*") && path.endsWith(pattern.substring(1, pattern.length()))); + } + } + + @Override + public String toString() { + return this.map.toString(); + } + +} |