Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
DefaultCharacterTranslatorSource |
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| 2.0;2 |
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.util.text; | |
16 | ||
17 | import java.util.HashMap; | |
18 | import java.util.Map; | |
19 | ||
20 | /** | |
21 | * The default implementation of a character translator source. Returns a | |
22 | * standard HTML translator that encodes everything that is non-safe or an HTML | |
23 | * translator that encodes only non-safe ASCII symbols if the encoding is a | |
24 | * unicode one. | |
25 | * | |
26 | * @author mb | |
27 | * @since 4.0 | |
28 | */ | |
29 | 0 | public class DefaultCharacterTranslatorSource implements |
30 | ICharacterTranslatorSource | |
31 | { | |
32 | ||
33 | 0 | private static final ICharacterTranslator DEFAULT_TRANSLATOR = new MarkupCharacterTranslator(); |
34 | 0 | private static final ICharacterTranslator UNICODE_TRANSLATOR = new MarkupCharacterTranslator( |
35 | false); | |
36 | ||
37 | private static final Map _translators; | |
38 | ||
39 | static | |
40 | { | |
41 | 0 | _translators = new HashMap(); |
42 | 0 | _translators.put("UTF-8", UNICODE_TRANSLATOR); |
43 | 0 | _translators.put("UTF-7", UNICODE_TRANSLATOR); |
44 | 0 | _translators.put("UTF-16", UNICODE_TRANSLATOR); |
45 | 0 | _translators.put("UTF-16BE", UNICODE_TRANSLATOR); |
46 | 0 | _translators.put("UTF-16LE", UNICODE_TRANSLATOR); |
47 | 0 | } |
48 | ||
49 | /** | |
50 | * Returns a translator that encodes all non-safe characters into their HTML | |
51 | * equivalents. | |
52 | * | |
53 | * @see org.apache.tapestry.util.text.ICharacterTranslatorSource#getDefaultTranslator() | |
54 | */ | |
55 | public ICharacterTranslator getDefaultTranslator() | |
56 | { | |
57 | 0 | return DEFAULT_TRANSLATOR; |
58 | } | |
59 | ||
60 | /** | |
61 | * If the encoding is a Unicode one, returns a translator that encodes only | |
62 | * the non-safe ASCII characters and leaves the others untouched. Otherwise, | |
63 | * returns the default translator. | |
64 | * | |
65 | * @see org.apache.tapestry.util.text.ICharacterTranslatorSource#getTranslator(java.lang.String) | |
66 | */ | |
67 | public ICharacterTranslator getTranslator(String encoding) | |
68 | { | |
69 | 0 | ICharacterTranslator translator = (ICharacterTranslator) _translators |
70 | .get(encoding.toUpperCase()); | |
71 | 0 | if (translator != null) return translator; |
72 | 0 | return getDefaultTranslator(); |
73 | } | |
74 | ||
75 | } |