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org.apache.commons.jelly.tags.xml.CopyTag |
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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.xml; |
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17 | ||
18 | import org.apache.commons.jelly.JellyTagException; |
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19 | import org.apache.commons.jelly.XMLOutput; |
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20 | import org.apache.commons.jelly.xpath.XPathTagSupport; |
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21 | import org.dom4j.Element; |
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22 | import org.dom4j.io.SAXWriter; |
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23 | import org.jaxen.JaxenException; |
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24 | import org.jaxen.XPath; |
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25 | import org.xml.sax.SAXException; |
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26 | ||
27 | /** |
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28 | * A tag which performs a copy operation like the XSLT tag, |
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29 | * performing a shallow copy of the element and its attributes but no content. |
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30 | * |
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31 | * @author James Strachan |
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32 | */ |
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33 | public class CopyTag extends XPathTagSupport { |
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34 | ||
35 | /** The XPath expression to evaluate. */ |
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36 | private XPath select; |
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37 | ||
38 | /** Should we output lexical XML data like entity names? |
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39 | */ |
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40 | private boolean lexical; |
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41 | ||
42 | 0 | public CopyTag() { |
43 | 0 | } |
44 | ||
45 | // Tag interface |
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46 | //------------------------------------------------------------------------- |
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47 | public void doTag(XMLOutput output) throws JellyTagException { |
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48 | 0 | Object xpathContext = getXPathContext(); |
49 | ||
50 | 0 | Object node = xpathContext; |
51 | ||
52 | try { |
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53 | 0 | if (select != null) { |
54 | 0 | node = select.selectSingleNode(xpathContext); |
55 | } |
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56 | ||
57 | 0 | if ( node instanceof Element ) { |
58 | 0 | Element element = (Element) node; |
59 | ||
60 | SAXWriter saxWriter; |
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61 | ||
62 | 0 | if (lexical) { |
63 | 0 | saxWriter = new SAXWriter(output, output); |
64 | } else { |
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65 | 0 | saxWriter = new SAXWriter(output); |
66 | } |
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67 | ||
68 | 0 | saxWriter.writeOpen(element); |
69 | 0 | invokeBody(output); |
70 | 0 | saxWriter.writeClose(element); |
71 | } |
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72 | else { |
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73 | 0 | invokeBody(output); |
74 | } |
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75 | 0 | } |
76 | catch (SAXException e) { |
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77 | 0 | throw new JellyTagException(e); |
78 | } |
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79 | catch (JaxenException e) { |
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80 | 0 | throw new JellyTagException(e); |
81 | } |
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82 | 0 | } |
83 | ||
84 | // Properties |
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85 | //------------------------------------------------------------------------- |
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86 | /** Sets the XPath expression to evaluate. */ |
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87 | public void setSelect(XPath select) { |
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88 | 0 | this.select = select; |
89 | 0 | } |
90 | public void setLexical(boolean lexical) { |
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91 | 0 | this.lexical = lexical; |
92 | 0 | } |
93 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |