Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
BadCharacterReplacingNMapper |
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| 3.0;3 |
1 | /* |
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2 | * Copyright 2001-2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.betwixt.strategy; |
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17 | ||
18 | import org.apache.commons.betwixt.XMLUtils; |
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19 | ||
20 | /** |
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21 | * <code>NameMapper</code> implementation that processes a name by replacing or stripping |
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22 | * illegal characters before passing result down the chain. |
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23 | * |
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24 | * @author Robert Burrell Donkin |
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25 | * @since 0.5 |
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26 | */ |
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27 | public class BadCharacterReplacingNMapper implements NameMapper { |
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28 | /** Next mapper in chain, possibly null */ |
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29 | private NameMapper chainedMapper; |
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30 | /** Replacement character, possibly null */ |
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31 | 890 | private Character replacement = null; |
32 | ||
33 | /** |
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34 | * Constructs a replacing mapper which delegates to given mapper. |
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35 | * @param chainedMapper next link in processing chain, possibly null |
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36 | */ |
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37 | 890 | public BadCharacterReplacingNMapper(NameMapper chainedMapper) { |
38 | 890 | this.chainedMapper = chainedMapper; |
39 | 890 | } |
40 | ||
41 | /** |
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42 | * Gets the character that should be used to replace bad characters |
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43 | * if null then bad characters will be deleted. |
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44 | * @return the replacement Character possibly null |
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45 | */ |
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46 | public Character getReplacement() { |
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47 | 0 | return replacement; |
48 | } |
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49 | ||
50 | /** |
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51 | * Sets the character that should be used to replace bad characters. |
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52 | * @param replacement the Charcter to be used for replacement if not null. |
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53 | * Otherwise, indicates that illegal characters should be deleted. |
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54 | */ |
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55 | public void setReplacement( Character replacement ) { |
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56 | 52 | this.replacement = replacement; |
57 | 52 | } |
58 | ||
59 | /** |
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60 | * This implementation processes characters which are not allowed in xml |
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61 | * element names and then returns the result from the next link in the chain. |
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62 | * This processing consists of deleting them if no replacement character |
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63 | * has been set. |
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64 | * Otherwise, the character will be replaced. |
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65 | * |
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66 | * @param typeName the string to convert |
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67 | * @return the processed input |
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68 | */ |
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69 | public String mapTypeToElementName(String typeName) { |
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70 | ||
71 | 15858 | StringBuffer buffer = new StringBuffer( typeName ); |
72 | 135669 | for (int i=0, size = buffer.length(); i< size; i++) { |
73 | 119811 | char nextChar = buffer.charAt( i ); |
74 | 119811 | boolean bad = false; |
75 | 119811 | if ( i==0 ) { |
76 | 15910 | bad = !XMLUtils.isNameStartChar( nextChar ); |
77 | } else { |
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78 | 103901 | bad = !XMLUtils.isNameChar( nextChar ); |
79 | } |
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80 | ||
81 | 119811 | if (bad) { |
82 | 715 | if ( replacement != null ) { |
83 | 247 | buffer.setCharAt( i, replacement.charValue() ); |
84 | } else { |
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85 | // delete |
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86 | 468 | buffer.deleteCharAt( i ); |
87 | 468 | i--; |
88 | 468 | size--; |
89 | } |
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90 | } |
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91 | } |
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92 | ||
93 | 15858 | if ( buffer.length() == 0 ) { |
94 | 0 | throw new IllegalArgumentException( |
95 | 0 | "Element name contains no legal characters and no replacements have been set."); |
96 | } |
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97 | ||
98 | 15858 | typeName = buffer.toString(); |
99 | ||
100 | 15858 | if ( chainedMapper == null ) { |
101 | 52 | return typeName; |
102 | } |
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103 | 15806 | return chainedMapper.mapTypeToElementName( typeName ); |
104 | } |
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105 | } |