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org.apache.commons.jelly.tags.bsf.BSFTagLibrary |
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1 | /* |
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2 | * Copyright 2002,2004 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.jelly.tags.bsf; |
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17 | ||
18 | import org.apache.commons.jelly.JellyException; |
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19 | import org.apache.commons.jelly.Tag; |
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20 | import org.apache.commons.jelly.expression.ExpressionFactory; |
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21 | import org.apache.commons.jelly.impl.TagFactory; |
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22 | import org.apache.commons.jelly.tags.core.CoreTagLibrary; |
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23 | import org.xml.sax.Attributes; |
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24 | ||
25 | import org.apache.bsf.BSFEngine; |
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26 | import org.apache.bsf.BSFException; |
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27 | ||
28 | ||
29 | /** Describes the Taglib. This class could be generated by XDoclet |
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30 | * |
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31 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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32 | * @version $Revision: 1.6 $ |
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33 | */ |
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34 | public class BSFTagLibrary extends CoreTagLibrary { |
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35 | ||
36 | 0 | private BSFExpressionFactory expressionFactory = new BSFExpressionFactory(); |
37 | ||
38 | 0 | public BSFTagLibrary() { |
39 | 0 | registerTagFactory( |
40 | "script", |
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41 | new TagFactory() { |
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42 | public Tag createTag(String name, Attributes attributes) |
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43 | throws JellyException { |
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44 | return createScriptTag(name, attributes); |
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45 | } |
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46 | } |
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47 | ); |
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48 | 0 | } |
49 | ||
50 | public BSFTagLibrary(String language) { |
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51 | 0 | this(); |
52 | 0 | setLanguage(language); |
53 | 0 | } |
54 | ||
55 | public void setLanguage(String language) { |
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56 | 0 | expressionFactory.setLanguage(language); |
57 | 0 | } |
58 | ||
59 | /** Allows derived tag libraries to use their own factory */ |
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60 | protected ExpressionFactory getExpressionFactory() { |
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61 | 0 | return expressionFactory; |
62 | } |
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63 | ||
64 | protected BSFEngine getBSFEngine() throws BSFException { |
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65 | 0 | return expressionFactory.getBSFEngine(); |
66 | } |
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67 | ||
68 | /** |
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69 | * Factory method to create a new ScriptTag with a BSFEngine |
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70 | * |
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71 | * @param name is the name of the tag (typically 'script') |
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72 | * @param attributes the attributes of the tag |
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73 | * @return Tag |
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74 | */ |
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75 | protected Tag createScriptTag(String name, Attributes attributes) throws JellyException { |
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76 | try { |
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77 | 0 | return new ScriptTag( expressionFactory.getBSFEngine(), |
78 | expressionFactory.getBSFManager()); |
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79 | } |
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80 | catch (BSFException e) { |
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81 | 0 | throw new JellyException("Failed to create BSFEngine: " + e, e); |
82 | } |
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83 | } |
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84 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |