|
|||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
LocalizedWebContextResourceFinder.java | 100% | 100% | 100% | 100% |
|
1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // Unless required by applicable law or agreed to in writing, software | |
10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | // See the License for the specific language governing permissions and | |
13 | // limitations under the License. | |
14 | ||
15 | package org.apache.tapestry.web; | |
16 | ||
17 | import java.util.Locale; | |
18 | ||
19 | import org.apache.hivemind.util.LocalizedNameGenerator; | |
20 | import org.apache.hivemind.util.LocalizedResource; | |
21 | ||
22 | /** | |
23 | * Finds localized resources within a {@link org.apache.tapestry.web.WebContext}.. | |
24 | * | |
25 | * @author Howard Lewis Ship | |
26 | * @since 4.0 | |
27 | */ | |
28 | ||
29 | public class LocalizedWebContextResourceFinder | |
30 | { | |
31 | private WebContext _context; | |
32 | ||
33 | 70 | public LocalizedWebContextResourceFinder(WebContext context) |
34 | { | |
35 | 70 | _context = context; |
36 | } | |
37 | ||
38 | /** | |
39 | * Resolves the resource, returning a path representing the closest match (with respect to the | |
40 | * provided locale). Returns null if no match. | |
41 | * <p> | |
42 | * The provided path is split into a base path and a suffix (at the last period character). The | |
43 | * locale will provide different suffixes to the base path and the first match is returned. | |
44 | */ | |
45 | ||
46 | 70 | public LocalizedResource resolve(String contextPath, Locale locale) |
47 | { | |
48 | 70 | int dotx = contextPath.lastIndexOf('.'); |
49 | 70 | String basePath; |
50 | 70 | String suffix; |
51 | 70 | if (dotx >= 0) { |
52 | 69 | basePath = contextPath.substring(0, dotx); |
53 | 69 | suffix = contextPath.substring(dotx); |
54 | } | |
55 | else | |
56 | { | |
57 | // Resource without extension | |
58 | 1 | basePath = contextPath; |
59 | 1 | suffix = ""; |
60 | } | |
61 | ||
62 | 70 | LocalizedNameGenerator generator = new LocalizedNameGenerator(basePath, locale, suffix); |
63 | ||
64 | 70 | while (generator.more()) |
65 | { | |
66 | 139 | String candidatePath = generator.next(); |
67 | ||
68 | 139 | if (isExistingResource(candidatePath)) |
69 | 68 | return new LocalizedResource(candidatePath, generator.getCurrentLocale()); |
70 | } | |
71 | ||
72 | 2 | return null; |
73 | } | |
74 | ||
75 | 139 | private boolean isExistingResource(String path) |
76 | { | |
77 | 139 | return _context.getResource(path) != null; |
78 | } | |
79 | } |
|