Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
TextToken |
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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.parse; |
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16 | ||
17 | import org.apache.hivemind.ApplicationRuntimeException; |
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18 | import org.apache.hivemind.Location; |
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19 | import org.apache.hivemind.util.ToStringBuilder; |
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20 | import org.apache.tapestry.IMarkupWriter; |
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21 | import org.apache.tapestry.IRender; |
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22 | import org.apache.tapestry.IRequestCycle; |
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23 | ||
24 | /** |
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25 | * Represents static text in the template that may be passed through to the client unchanged |
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26 | * (except, perhaps, for the removal of some whitespace). |
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27 | * |
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28 | * @see TokenType#TEXT |
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29 | * @author Howard Lewis Ship |
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30 | * @since 3.0 |
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31 | */ |
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32 | ||
33 | public class TextToken extends TemplateToken implements IRender |
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34 | { |
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35 | private char[] _templateData; |
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36 | ||
37 | private int _offset; |
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38 | ||
39 | private int _length; |
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40 | ||
41 | public TextToken(char[] templateData, int startIndex, int endIndex, Location location) |
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42 | { |
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43 | 77 | super(TokenType.TEXT, location); |
44 | ||
45 | 77 | if (startIndex < 0 || endIndex < 0 || startIndex > templateData.length |
46 | || endIndex > templateData.length) |
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47 | 0 | throw new ApplicationRuntimeException(ParseMessages.rangeError( |
48 | this, |
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49 | templateData.length), this, getLocation(), null); |
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50 | ||
51 | 77 | _templateData = templateData; |
52 | ||
53 | 77 | _offset = startIndex; |
54 | 77 | _length = endIndex - startIndex + 1; |
55 | 77 | } |
56 | ||
57 | public void render(IMarkupWriter writer, IRequestCycle cycle) |
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58 | { |
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59 | 0 | if (_length == 0) |
60 | 0 | return; |
61 | ||
62 | // At one time, we would check to see if the cycle was rewinding and |
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63 | // only invoke printRaw() if it was. However, that slows down |
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64 | // normal rendering (microscopically) and, with the new |
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65 | // NullResponseWriter class, the "cost" of invoking cycle.isRewinding() |
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66 | // is approximately the same as the "cost" of invoking writer.printRaw(). |
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67 | ||
68 | 0 | writer.printRaw(_templateData, _offset, _length); |
69 | 0 | } |
70 | ||
71 | protected void extendDescription(ToStringBuilder builder) |
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72 | { |
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73 | 0 | builder.append("offset", _offset); |
74 | 0 | builder.append("length", _length); |
75 | 0 | builder.append("templateData", getTemplateDataAsString()); |
76 | 0 | } |
77 | ||
78 | public String getTemplateDataAsString() |
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79 | { |
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80 | 0 | return new String(_templateData, _offset, _length); |
81 | } |
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82 | ||
83 | public int getLength() |
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84 | { |
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85 | 18 | return _length; |
86 | } |
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87 | ||
88 | public int getOffset() |
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89 | { |
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90 | 18 | return _offset; |
91 | } |
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92 | } |