2011/08/05 - Jakarta Cactus has been retired.

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1   /* 
2    * ========================================================================
3    * 
4    * Licensed to the Apache Software Foundation (ASF) under one or more
5    * contributor license agreements.  See the NOTICE file distributed with
6    * this work for additional information regarding copyright ownership.
7    * The ASF licenses this file to You under the Apache License, Version 2.0
8    * (the "License"); you may not use this file except in compliance with
9    * 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, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   * 
19   * ========================================================================
20   */
21  package org.apache.cactus.internal.util;
22  
23  import java.net.URL;
24  
25  /**
26   * Various utility methods for URL manipulation.
27   *
28   * @version $Id: UrlUtil.java 238991 2004-05-22 11:34:50Z vmassol $
29   */
30  public class UrlUtil
31  {
32      /**
33       * Returns the path part of the URL. This method is needed for
34       * JDK 1.2 support as <code>URL.getPath()</code> does not exist in
35       * JDK 1.2 (only for JDK 1.3+).
36       *
37       * @param theURL the URL from which to extract the path
38       * @return the path part of the URL
39       */
40      public static String getPath(URL theURL)
41      {
42          String file = theURL.getFile();
43          String path = null;
44  
45          if (file != null)
46          {
47              int q = file.lastIndexOf('?');
48  
49              if (q != -1)
50              {
51                  path = file.substring(0, q);
52              }
53              else
54              {
55                  path = file;
56              }
57          }
58  
59          return path;
60      }
61  
62      /**
63       * Returns the query string of the URL. This method is needed for
64       * JDK 1.2 support as <code>URL.getQuery()</code> does not exist in
65       * JDK 1.2 (only for JDK 1.3+).
66       *
67       * @param theURL the URL from which to extract the query string
68       * @return the query string portion of the URL
69       */
70      public static String getQuery(URL theURL)
71      {
72          String file = theURL.getFile();
73          String query = null;
74  
75          if (file != null)
76          {
77              int q = file.lastIndexOf('?');
78  
79              if (q != -1)
80              {
81                  query = file.substring(q + 1);
82              }
83              else
84              {
85                  query = "";
86              }
87          }
88  
89          return query;
90      }
91  }