Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
AsciiCharacterTranslator |
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| 4.0;4 |
1 | // Copyright 2004, 2005 The Apache Software Foundation |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | ||
15 | package org.apache.tapestry.util.text; |
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16 | ||
17 | /** |
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18 | * An object that translates selected ASCII characters into equivalent strings. |
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19 | * |
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20 | * @author mb |
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21 | * @since 4.0 |
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22 | */ |
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23 | public class AsciiCharacterTranslator implements ICharacterTranslator |
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24 | { |
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25 | ||
26 | private String[] _charMap; |
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27 | ||
28 | /** |
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29 | * Creates and initializes a new translator that translates the provided |
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30 | * ASCII characters into strings. All other characters will be translated to |
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31 | * null. |
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32 | * |
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33 | * @param characterMap |
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34 | * an array of pairs of strings. Each pair consists of a key that |
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35 | * must be a single ASCII character, and a value that is its |
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36 | * equivalent string. |
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37 | */ |
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38 | public AsciiCharacterTranslator(String[][] characterMap) |
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39 | 1 | { |
40 | 1 | _charMap = new String[128]; |
41 | ||
42 | 1 | int pairCount = characterMap.length; |
43 | 5 | for(int i = 0; i < pairCount; i++) |
44 | { |
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45 | 4 | String[] pair = characterMap[i]; |
46 | 4 | if (pair.length != 2) continue; |
47 | 4 | String key = pair[0]; |
48 | 4 | String value = pair[1]; |
49 | 4 | if (key.length() != 1) continue; |
50 | 4 | char ch = key.charAt(0); |
51 | 4 | if (ch >= 128) continue; |
52 | ||
53 | 4 | _charMap[ch] = value; |
54 | } |
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55 | 1 | } |
56 | ||
57 | /** |
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58 | * @see org.apache.tapestry.util.text.ICharacterTranslator#translate(char) . |
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59 | */ |
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60 | public String translate(char ch) |
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61 | { |
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62 | 0 | if (ch >= 128) return null; |
63 | 0 | return _charMap[ch]; |
64 | } |
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65 | } |