01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.portal.velocity;
22:
23: import com.liferay.portal.theme.ThemeLoader;
24: import com.liferay.portal.theme.ThemeLoaderFactory;
25:
26: import java.io.FileInputStream;
27: import java.io.FileNotFoundException;
28: import java.io.InputStream;
29:
30: import org.apache.commons.logging.Log;
31: import org.apache.commons.logging.LogFactory;
32: import org.apache.velocity.exception.ResourceNotFoundException;
33:
34: /**
35: * <a href="ThemeLoaderVelocityResourceListener.java.html"><b><i>View Source</i>
36: * </b></a>
37: *
38: * @author Brian Wing Shun Chan
39: *
40: */
41: public class ThemeLoaderVelocityResourceListener extends
42: VelocityResourceListener {
43:
44: public InputStream getResourceStream(String source)
45: throws ResourceNotFoundException {
46:
47: InputStream is = null;
48:
49: try {
50: int pos = source.indexOf(THEME_LOADER_SEPARATOR);
51:
52: if (pos != -1) {
53: String ctxName = source.substring(0, pos);
54:
55: ThemeLoader themeLoader = ThemeLoaderFactory
56: .getThemeLoader(ctxName);
57:
58: if (themeLoader != null) {
59: String name = source.substring(pos
60: + THEME_LOADER_SEPARATOR.length());
61:
62: String themesPath = themeLoader.getThemesPath();
63:
64: if (name.startsWith(themesPath)) {
65: name = name.substring(themesPath.length(), name
66: .length());
67: }
68:
69: if (_log.isDebugEnabled()) {
70: _log
71: .debug(name
72: + " is associated with the theme loader "
73: + ctxName + " " + themeLoader);
74: }
75:
76: is = new FileInputStream(themeLoader
77: .getFileStorage().getPath()
78: + name);
79: } else {
80: _log.error(source + " is not valid because "
81: + ctxName
82: + " does not map to a theme loader");
83: }
84: }
85: } catch (FileNotFoundException fnfe) {
86: throw new ResourceNotFoundException(source);
87: }
88:
89: return is;
90: }
91:
92: private static Log _log = LogFactory
93: .getLog(ThemeLoaderVelocityResourceListener.class);
94:
95: }
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