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package org.apache.camel.converter.jaxp; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.InputStreamReader; |
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import java.io.Reader; |
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import java.io.StringReader; |
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import java.io.StringWriter; |
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import java.io.ByteArrayInputStream; |
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import java.io.File; |
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import java.lang.reflect.Constructor; |
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import javax.xml.parsers.DocumentBuilder; |
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import javax.xml.parsers.DocumentBuilderFactory; |
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import javax.xml.parsers.ParserConfigurationException; |
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import javax.xml.transform.OutputKeys; |
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import javax.xml.transform.Result; |
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import javax.xml.transform.Source; |
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import javax.xml.transform.Transformer; |
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import javax.xml.transform.TransformerConfigurationException; |
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import javax.xml.transform.TransformerException; |
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import javax.xml.transform.TransformerFactory; |
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import javax.xml.transform.dom.DOMResult; |
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import javax.xml.transform.dom.DOMSource; |
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import javax.xml.transform.sax.SAXSource; |
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import javax.xml.transform.stream.StreamResult; |
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import javax.xml.transform.stream.StreamSource; |
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import org.w3c.dom.Document; |
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import org.w3c.dom.Element; |
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import org.w3c.dom.Node; |
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import org.xml.sax.InputSource; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.XMLReader; |
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import org.apache.camel.util.ObjectHelper; |
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import org.apache.camel.Converter; |
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@Converter |
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public class XmlConverter { |
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public static final String DEFAULT_CHARSET_PROPERTY = "org.apache.camel.default.charset"; |
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public static String defaultCharset = ObjectHelper.getSystemProperty(DEFAULT_CHARSET_PROPERTY, "UTF-8"); |
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private DocumentBuilderFactory documentBuilderFactory; |
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private TransformerFactory transformerFactory; |
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private static final Class dom2SaxClass; |
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static { |
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Class cl = null; |
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try { |
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cl = Class.forName("org.apache.xalan.xsltc.trax.DOM2SAX"); |
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} catch (Throwable t) {} |
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dom2SaxClass = cl; |
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} |
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public XmlConverter() { |
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} |
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public XmlConverter(DocumentBuilderFactory documentBuilderFactory) { |
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this.documentBuilderFactory = documentBuilderFactory; |
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} |
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public void toResult(Source source, Result result) throws TransformerException { |
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if (source == null) { |
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return; |
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} |
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Transformer transformer = createTransfomer(); |
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if (transformer == null) { |
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throw new TransformerException("Could not create a transformer - JAXP is misconfigured!"); |
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} |
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transformer.setOutputProperty(OutputKeys.ENCODING, defaultCharset); |
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transformer.transform(source, result); |
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} |
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@Converter |
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public BytesSource toSource(byte[] data) { |
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return new BytesSource(data); |
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} |
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@Converter |
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public StringSource toSource(String data) { |
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return new StringSource(data); |
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} |
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@Converter |
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public DOMSource toSource(Document document) { |
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return new DOMSource(document); |
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} |
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@Converter |
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public String toString(Source source) throws TransformerException { |
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if (source == null) { |
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return null; |
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} else if (source instanceof StringSource) { |
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return ((StringSource) source).getText(); |
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} else if (source instanceof BytesSource) { |
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return new String(((BytesSource) source).getData()); |
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} else { |
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StringWriter buffer = new StringWriter(); |
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toResult(source, new StreamResult(buffer)); |
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return buffer.toString(); |
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} |
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} |
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@Converter |
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public String toString(Node node) throws TransformerException { |
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return toString(new DOMSource(node)); |
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} |
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@Converter |
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public DOMSource toDOMSource(Source source) throws ParserConfigurationException, IOException, SAXException, TransformerException { |
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if (source instanceof DOMSource) { |
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return (DOMSource) source; |
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} |
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else if (source instanceof SAXSource) { |
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return toDOMSourceFromSAX((SAXSource) source); |
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} |
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else if (source instanceof StreamSource) { |
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return toDOMSourceFromStream((StreamSource) source); |
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} |
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else { |
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return null; |
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} |
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} |
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@Converter |
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public SAXSource toSAXSource(Source source) throws IOException, SAXException, TransformerException { |
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if (source instanceof SAXSource) { |
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return (SAXSource) source; |
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} |
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else if (source instanceof DOMSource) { |
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return toSAXSourceFromDOM((DOMSource) source); |
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} |
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else if (source instanceof StreamSource) { |
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return toSAXSourceFromStream((StreamSource) source); |
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} |
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else { |
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return null; |
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} |
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} |
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@Converter |
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public StreamSource toStreamSource(Source source) throws TransformerException { |
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if (source instanceof StreamSource) { |
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return (StreamSource) source; |
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} else if (source instanceof DOMSource) { |
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return toStreamSourceFromDOM((DOMSource) source); |
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} else if (source instanceof SAXSource) { |
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return toStreamSourceFromSAX((SAXSource) source); |
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} else { |
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return null; |
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} |
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} |
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@Converter |
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public StreamSource toStreamSourceFromSAX(SAXSource source) throws TransformerException { |
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InputSource inputSource = source.getInputSource(); |
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if (inputSource != null) { |
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if (inputSource.getCharacterStream() != null) { |
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return new StreamSource(inputSource.getCharacterStream()); |
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} |
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if (inputSource.getByteStream() != null) { |
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return new StreamSource(inputSource.getByteStream()); |
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} |
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} |
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String result = toString(source); |
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return new StringSource(result); |
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} |
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@Converter |
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public StreamSource toStreamSourceFromDOM(DOMSource source) throws TransformerException { |
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String result = toString(source); |
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return new StringSource(result); |
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} |
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@Converter |
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public SAXSource toSAXSourceFromStream(StreamSource source) { |
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InputSource inputSource; |
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if (source.getReader() != null) { |
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inputSource = new InputSource(source.getReader()); |
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} else { |
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inputSource = new InputSource(source.getInputStream()); |
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} |
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inputSource.setSystemId(source.getSystemId()); |
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inputSource.setPublicId(source.getPublicId()); |
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return new SAXSource(inputSource); |
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} |
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@Converter |
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public Reader toReaderFromSource(Source src) throws TransformerException { |
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StreamSource stSrc = toStreamSource(src); |
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Reader r = stSrc.getReader(); |
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if (r == null) { |
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r = new InputStreamReader(stSrc.getInputStream()); |
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} |
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return r; |
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} |
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@Converter |
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public DOMSource toDOMSourceFromStream(StreamSource source) throws ParserConfigurationException, IOException, SAXException { |
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DocumentBuilder builder = createDocumentBuilder(); |
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String systemId = source.getSystemId(); |
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Document document = null; |
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Reader reader = source.getReader(); |
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if (reader != null) { |
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document = builder.parse(new InputSource(reader)); |
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} else { |
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InputStream inputStream = source.getInputStream(); |
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if (inputStream != null) { |
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InputSource inputsource = new InputSource(inputStream); |
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inputsource.setSystemId(systemId); |
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document = builder.parse(inputsource); |
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} |
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else { |
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throw new IOException("No input stream or reader available"); |
| 276 |
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} |
| 277 |
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} |
| 278 |
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return new DOMSource(document, systemId); |
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} |
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@Converter |
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public SAXSource toSAXSourceFromDOM(DOMSource source) throws TransformerException { |
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if (dom2SaxClass != null) { |
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try { |
| 285 |
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Constructor cns = dom2SaxClass.getConstructor(new Class[] { Node.class }); |
| 286 |
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XMLReader converter = (XMLReader) cns.newInstance(new Object[] { source.getNode() }); |
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return new SAXSource(converter, new InputSource()); |
| 288 |
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} catch (Exception e) { |
| 289 |
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throw new TransformerException(e); |
| 290 |
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} |
| 291 |
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} else { |
| 292 |
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String str = toString(source); |
| 293 |
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StringReader reader = new StringReader(str); |
| 294 |
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return new SAXSource(new InputSource(reader)); |
| 295 |
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} |
| 296 |
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} |
| 297 |
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| 298 |
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@Converter |
| 299 |
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public DOMSource toDOMSourceFromSAX(SAXSource source) throws IOException, SAXException, ParserConfigurationException, TransformerException { |
| 300 |
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return new DOMSource(toDOMNodeFromSAX(source)); |
| 301 |
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} |
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| 303 |
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@Converter |
| 304 |
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public Node toDOMNodeFromSAX(SAXSource source) throws ParserConfigurationException, IOException, SAXException, TransformerException { |
| 305 |
0 |
DOMResult result = new DOMResult(); |
| 306 |
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toResult(source, result); |
| 307 |
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return result.getNode(); |
| 308 |
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} |
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@Converter |
| 317 |
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public Node toDOMNode(Source source) throws TransformerException, ParserConfigurationException, IOException, SAXException { |
| 318 |
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DOMSource domSrc = toDOMSource(source); |
| 319 |
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return domSrc != null ? domSrc.getNode() : null; |
| 320 |
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} |
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@Converter |
| 333 |
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public Element toDOMElement(Source source) throws TransformerException, ParserConfigurationException, IOException, SAXException { |
| 334 |
0 |
Node node = toDOMNode(source); |
| 335 |
0 |
return toDOMElement(node); |
| 336 |
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} |
| 337 |
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| 346 |
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| 347 |
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@Converter |
| 348 |
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public Element toDOMElement(Node node) throws TransformerException { |
| 349 |
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| 350 |
0 |
if (node instanceof Document) { |
| 351 |
0 |
return ((Document) node).getDocumentElement(); |
| 352 |
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| 353 |
0 |
} else if (node instanceof Element) { |
| 354 |
0 |
return (Element) node; |
| 355 |
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| 356 |
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} else { |
| 357 |
0 |
throw new TransformerException("Unable to convert DOM node to an Element"); |
| 358 |
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} |
| 359 |
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} |
| 360 |
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| 361 |
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| 367 |
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@Converter |
| 368 |
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public Document toDOMDocument(byte[] data) throws IOException, SAXException, ParserConfigurationException { |
| 369 |
24 |
DocumentBuilder documentBuilder = getDocumentBuilderFactory().newDocumentBuilder(); |
| 370 |
24 |
return documentBuilder.parse(new ByteArrayInputStream(data)); |
| 371 |
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} |
| 372 |
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| 378 |
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| 379 |
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@Converter |
| 380 |
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public Document toDOMDocument(InputStream in) throws IOException, SAXException, ParserConfigurationException { |
| 381 |
0 |
DocumentBuilder documentBuilder = getDocumentBuilderFactory().newDocumentBuilder(); |
| 382 |
0 |
return documentBuilder.parse(in); |
| 383 |
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} |
| 384 |
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| 388 |
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| 389 |
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| 390 |
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| 391 |
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@Converter |
| 392 |
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public Document toDOMDocument(InputSource in) throws IOException, SAXException, ParserConfigurationException { |
| 393 |
0 |
DocumentBuilder documentBuilder = getDocumentBuilderFactory().newDocumentBuilder(); |
| 394 |
0 |
return documentBuilder.parse(in); |
| 395 |
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} |
| 396 |
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| 397 |
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| 398 |
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| 399 |
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| 400 |
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| 401 |
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| 402 |
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| 403 |
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@Converter |
| 404 |
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public Document toDOMDocument(String text) throws IOException, SAXException, ParserConfigurationException { |
| 405 |
24 |
return toDOMDocument(text.getBytes()); |
| 406 |
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} |
| 407 |
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| 408 |
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| 409 |
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| 410 |
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| 411 |
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| 412 |
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| 413 |
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| 414 |
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@Converter |
| 415 |
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public Document toDOMDocument(File file) throws IOException, SAXException, ParserConfigurationException { |
| 416 |
0 |
DocumentBuilder documentBuilder = getDocumentBuilderFactory().newDocumentBuilder(); |
| 417 |
0 |
return documentBuilder.parse(file); |
| 418 |
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} |
| 419 |
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| 430 |
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| 431 |
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@Converter |
| 432 |
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public Document toDOMDocument(Source source) throws TransformerException, ParserConfigurationException, IOException, SAXException { |
| 433 |
0 |
Node node = toDOMNode(source); |
| 434 |
0 |
return toDOMDocument(node); |
| 435 |
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} |
| 436 |
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| 437 |
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| 446 |
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| 447 |
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| 448 |
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| 449 |
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@Converter |
| 450 |
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public Document toDOMDocument(Node node) throws ParserConfigurationException, TransformerException { |
| 451 |
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|
| 452 |
0 |
if (node instanceof Document) { |
| 453 |
0 |
return (Document) node; |
| 454 |
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|
| 455 |
0 |
} else if (node instanceof Element) { |
| 456 |
0 |
Element elem = (Element) node; |
| 457 |
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|
| 458 |
0 |
if (elem.getOwnerDocument().getDocumentElement() == elem) { |
| 459 |
0 |
return elem.getOwnerDocument(); |
| 460 |
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|
| 461 |
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} else { |
| 462 |
0 |
Document doc = createDocument(); |
| 463 |
0 |
doc.appendChild(doc.importNode(node, true)); |
| 464 |
0 |
return doc; |
| 465 |
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} |
| 466 |
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|
| 467 |
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} else { |
| 468 |
0 |
throw new TransformerException("Unable to convert DOM node to a Document"); |
| 469 |
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} |
| 470 |
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} |
| 471 |
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| 472 |
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| 473 |
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|
| 474 |
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public DocumentBuilderFactory getDocumentBuilderFactory() { |
| 475 |
24 |
if (documentBuilderFactory == null) { |
| 476 |
18 |
documentBuilderFactory = createDocumentBuilderFactory(); |
| 477 |
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} |
| 478 |
24 |
return documentBuilderFactory; |
| 479 |
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} |
| 480 |
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|
| 481 |
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public void setDocumentBuilderFactory(DocumentBuilderFactory documentBuilderFactory) { |
| 482 |
0 |
this.documentBuilderFactory = documentBuilderFactory; |
| 483 |
0 |
} |
| 484 |
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| 485 |
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| 486 |
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|
| 487 |
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|
| 488 |
|
public DocumentBuilderFactory createDocumentBuilderFactory() { |
| 489 |
18 |
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); |
| 490 |
18 |
factory.setNamespaceAware(true); |
| 491 |
18 |
factory.setIgnoringElementContentWhitespace(true); |
| 492 |
18 |
factory.setIgnoringComments(true); |
| 493 |
18 |
return factory; |
| 494 |
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} |
| 495 |
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|
| 496 |
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|
| 497 |
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public DocumentBuilder createDocumentBuilder() throws ParserConfigurationException { |
| 498 |
0 |
DocumentBuilderFactory factory = getDocumentBuilderFactory(); |
| 499 |
0 |
return factory.newDocumentBuilder(); |
| 500 |
|
} |
| 501 |
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|
| 502 |
|
public Document createDocument() throws ParserConfigurationException { |
| 503 |
0 |
DocumentBuilder builder = createDocumentBuilder(); |
| 504 |
0 |
return builder.newDocument(); |
| 505 |
|
} |
| 506 |
|
|
| 507 |
|
public TransformerFactory getTransformerFactory() { |
| 508 |
2 |
if (transformerFactory == null) { |
| 509 |
2 |
transformerFactory = createTransformerFactory(); |
| 510 |
|
} |
| 511 |
2 |
return transformerFactory; |
| 512 |
|
} |
| 513 |
|
|
| 514 |
|
public void setTransformerFactory(TransformerFactory transformerFactory) { |
| 515 |
0 |
this.transformerFactory = transformerFactory; |
| 516 |
0 |
} |
| 517 |
|
|
| 518 |
|
public Transformer createTransfomer() throws TransformerConfigurationException { |
| 519 |
1 |
TransformerFactory factory = getTransformerFactory(); |
| 520 |
1 |
return factory.newTransformer(); |
| 521 |
|
} |
| 522 |
|
|
| 523 |
|
public TransformerFactory createTransformerFactory() { |
| 524 |
2 |
TransformerFactory answer = TransformerFactory.newInstance(); |
| 525 |
2 |
return answer; |
| 526 |
|
} |
| 527 |
|
|
| 528 |
|
} |