| ThemeLoaderVelocityResourceListener.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.velocity;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27 import com.liferay.portal.theme.ThemeLoader;
28 import com.liferay.portal.theme.ThemeLoaderFactory;
29
30 import java.io.FileInputStream;
31 import java.io.FileNotFoundException;
32 import java.io.InputStream;
33
34 import org.apache.velocity.exception.ResourceNotFoundException;
35
36 /**
37 * <a href="ThemeLoaderVelocityResourceListener.java.html"><b><i>View Source</i>
38 * </b></a>
39 *
40 * @author Brian Wing Shun Chan
41 *
42 */
43 public class ThemeLoaderVelocityResourceListener
44 extends VelocityResourceListener {
45
46 public InputStream getResourceStream(String source)
47 throws ResourceNotFoundException {
48
49 InputStream is = null;
50
51 try {
52 int pos = source.indexOf(THEME_LOADER_SEPARATOR);
53
54 if (pos != -1) {
55 String ctxName = source.substring(0, pos);
56
57 ThemeLoader themeLoader = ThemeLoaderFactory.getThemeLoader(
58 ctxName);
59
60 if (themeLoader != null) {
61 String name =
62 source.substring(pos + THEME_LOADER_SEPARATOR.length());
63
64 String themesPath = themeLoader.getThemesPath();
65
66 if (name.startsWith(themesPath)) {
67 name = name.substring(
68 themesPath.length(), name.length());
69 }
70
71 if (_log.isDebugEnabled()) {
72 _log.debug(
73 name + " is associated with the theme loader " +
74 ctxName + " " + themeLoader);
75 }
76
77 is = new FileInputStream(
78 themeLoader.getFileStorage().getPath() + name);
79 }
80 else {
81 _log.error(
82 source + " is not valid because " + ctxName +
83 " does not map to a theme loader");
84 }
85 }
86 }
87 catch (FileNotFoundException fnfe) {
88 throw new ResourceNotFoundException(source);
89 }
90
91 return is;
92 }
93
94 private static Log _log =
95 LogFactoryUtil.getLog(ThemeLoaderVelocityResourceListener.class);
96
97 }