|
1 /** |
|
2 * Copyright (c) 2012, Ben Fortuna |
|
3 * All rights reserved. |
|
4 * |
|
5 * Redistribution and use in source and binary forms, with or without |
|
6 * modification, are permitted provided that the following conditions |
|
7 * are met: |
|
8 * |
|
9 * o Redistributions of source code must retain the above copyright |
|
10 * notice, this list of conditions and the following disclaimer. |
|
11 * |
|
12 * o Redistributions in binary form must reproduce the above copyright |
|
13 * notice, this list of conditions and the following disclaimer in the |
|
14 * documentation and/or other materials provided with the distribution. |
|
15 * |
|
16 * o Neither the name of Ben Fortuna nor the names of any other contributors |
|
17 * may be used to endorse or promote products derived from this software |
|
18 * without specific prior written permission. |
|
19 * |
|
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
|
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
|
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
|
27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
|
28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
|
29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
|
30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
31 */ |
|
32 package net.fortuna.ical4j.util; |
|
33 |
|
34 import java.io.InputStream; |
|
35 import java.net.URL; |
|
36 |
|
37 import org.apache.commons.logging.Log; |
|
38 import org.apache.commons.logging.LogFactory; |
|
39 |
|
40 /** |
|
41 * @author fortuna |
|
42 * |
|
43 */ |
|
44 public class ResourceLoader { |
|
45 |
|
46 private static final Log LOG = LogFactory.getLog(ResourceLoader.class); |
|
47 |
|
48 /** |
|
49 * Load a resource via the thread context classloader. If security permissions don't allow |
|
50 * this fallback to loading via current classloader. |
|
51 * @param name a resource name |
|
52 * @return a {@link URL} or null if resource is not found |
|
53 */ |
|
54 public static URL getResource(String name) { |
|
55 URL resource = null; |
|
56 try { |
|
57 resource = Thread.currentThread().getContextClassLoader().getResource(name); |
|
58 } |
|
59 catch (SecurityException e) { |
|
60 LOG.info("Unable to access context classloader, using default. " + e.getMessage()); |
|
61 } |
|
62 if (resource == null) { |
|
63 resource = ResourceLoader.class.getResource("/" + name); |
|
64 } |
|
65 return resource; |
|
66 } |
|
67 |
|
68 /** |
|
69 * Load a resource via the thread context classloader. If security permissions don't allow |
|
70 * this fallback to loading via current classloader. |
|
71 * @param name a resource name |
|
72 * @return an {@link InputStream} or null if resource is not found |
|
73 */ |
|
74 public static InputStream getResourceAsStream(String name) { |
|
75 InputStream stream = null; |
|
76 try { |
|
77 stream = Thread.currentThread().getContextClassLoader().getResourceAsStream(name); |
|
78 } |
|
79 catch (SecurityException e) { |
|
80 LOG.info("Unable to access context classloader, using default. " + e.getMessage()); |
|
81 } |
|
82 if (stream == null) { |
|
83 stream = ResourceLoader.class.getResourceAsStream("/" + name); |
|
84 } |
|
85 return stream; |
|
86 } |
|
87 } |