1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18 package org.codehaus.activemq.util;
19
20 import java.net.URI;
21 import java.util.HashMap;
22 import java.util.Map;
23 import java.util.StringTokenizer;
24
25 /***
26 * Some URI based helper methods.
27 *
28 * @version $Revision: 1.1 $
29 */
30 public class URIHelper {
31
32 /***
33 * Parsers the query string of the URI into a map of key-value pairs
34 */
35 public static Map parseQuery(URI uri) {
36 return parseQuery(uri.getQuery());
37 }
38
39 /***
40 * Parsers the query string of the URI into a map of key-value pairs
41 */
42 public static Map parseQuery(String query) {
43 Map answer = new HashMap();
44 if (query != null) {
45 StringTokenizer iter = new StringTokenizer(query, "&");
46 while (iter.hasMoreTokens()) {
47 String pair = iter.nextToken();
48 addKeyValuePair(answer, pair);
49 }
50 }
51 return answer;
52 }
53
54 protected static void addKeyValuePair(Map answer, String pair) {
55 int idx = pair.indexOf('=');
56 String name = null;
57 String value = null;
58 if (idx >= 0) {
59 name = pair.substring(0, idx);
60 if (++idx < pair.length()) {
61 value = pair.substring(idx);
62 }
63 }
64 else {
65 name = pair;
66 }
67 answer.put(name, value);
68 }
69 }