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Java > Open Source Codes > org > objectweb > jonas_lib > loader > factory > DirURLFactory


1 /**
2  * JOnAS: Java(TM) Open Application Server
3  * Copyright (C) 1999 Bull S.A.
4  * Contact: jonas-team@objectweb.org
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  * USA
20  *
21  * Initial developer(s): Guillaume SAUTHIER
22  * --------------------------------------------------------------------------
23  * $Id: DirURLFactory.java,v 1.2 2004/04/19 13:49:09 sauthieg Exp $
24  * --------------------------------------------------------------------------
25  */
26
27 package org.objectweb.jonas_lib.loader.factory;
28
29 import java.net.URL JavaDoc;
30 import java.io.IOException JavaDoc;
31
32 /**
33  * A <code>DirURLFactory</code> is used to create URLs
34  * from an URL (pointing to a directory) and paths.
35  * Example : <br/>
36  * base : <code>file:/path/</code><br/>
37  * path : <code>META-INF/directory/</code><br/>
38  * results : <code>file:/path/META-INF/directory/</code><br/>
39  *
40  * @author Guillaume Sauthier
41  */
42 public class DirURLFactory extends URLFactory {
43
44     /** the base URL */
45     private URL JavaDoc base;
46
47     /**
48      * Create a new DirURLFactory using the specified base URL.
49      *
50      * @param url the base url. (must be a directory)
51      */
52     public DirURLFactory(URL JavaDoc url) {
53         base = url;
54     }
55
56     /**
57      * Returns a new URL basically adding path to the base URL.
58      *
59      * @param path the path to add to the URL. (must not start with "/")
60      *
61      * @return a new URL of the form <base><path>.
62      *
63      * @throws IOException when created URL is invalid.
64      */
65     public URL JavaDoc getURL(String JavaDoc path) throws IOException JavaDoc {
66         return new URL JavaDoc(base + path);
67     }
68
69 }
70
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