Java 类javax.xml.transform.TransformerFactory 实例源码

/**
 * @bug 8165116
 * Verifies that redirect works properly when extension function is enabled
 *
 * @param xml the XML source
 * @param xsl the stylesheet that redirect output to a file
 * @param output the output file
 * @param redirect the redirect file
 * @throws Exception if the test fails
 **/
@Test(dataProvider = "redirect")
public void testRedirect(String xml, String xsl, String output, String redirect) throws Exception {

    TransformerFactory tf = TransformerFactory.newInstance();
    tf.setFeature(ORACLE_ENABLE_EXTENSION_FUNCTION, true);
    Transformer t = tf.newTransformer(new StreamSource(new StringReader(xsl)));

    //Transform the xml
    tryRunWithTmpPermission(
            () -> t.transform(new StreamSource(new StringReader(xml)), new StreamResult(new StringWriter())),
            new FilePermission(output, "write"), new FilePermission(redirect, "write"));

    // Verifies that the output is redirected successfully
    String userDir = getSystemProperty("user.dir");
    Path pathOutput = Paths.get(userDir, output);
    Path pathRedirect = Paths.get(userDir, redirect);
    Assert.assertTrue(Files.exists(pathOutput));
    Assert.assertTrue(Files.exists(pathRedirect));
    System.out.println("Output to " + pathOutput + " successful.");
    System.out.println("Redirect to " + pathRedirect + " successful.");
    Files.deleteIfExists(pathOutput);
    Files.deleteIfExists(pathRedirect);
}

@Test
public final void testStAXSource2() throws XMLStreamException {
    XMLInputFactory ifactory = XMLInputFactory.newInstance();
    ifactory.setProperty("javax.xml.stream.supportDTD", Boolean.TRUE);

    StAXSource ss = new StAXSource(ifactory.createXMLStreamReader(getClass().getResource("5368141.xml").toString(),
            getClass().getResourceAsStream("5368141.xml")));
    DOMResult dr = new DOMResult();

    TransformerFactory tfactory = TransformerFactory.newInstance();
    try {
        Transformer transformer = tfactory.newTransformer();
        transformer.transform(ss, dr);
    } catch (Exception e) {
        Assert.fail(e.getMessage());
    }
}

private void doTransform(String sXSL, OutputStream os) throws javax.xml.transform.TransformerConfigurationException, javax.xml.transform.TransformerException {
    // create the transformerfactory & transformer instance
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer t = tf.newTransformer();

    if (null == sXSL) {
        t.transform(new DOMSource(doc), new StreamResult(os));
        return;
    }

    try {
        Transformer finalTransformer = tf.newTransformer(new StreamSource(sXSL));
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        BufferedOutputStream bos = new BufferedOutputStream(baos);
        t.transform(new DOMSource(doc), new StreamResult(bos));
        bos.flush();
        StreamSource xmlSource = new StreamSource(new BufferedInputStream(new ByteArrayInputStream(baos.toByteArray())));
        finalTransformer.transform(xmlSource, new StreamResult(os));
    } catch (IOException ioe) {
        throw new javax.xml.transform.TransformerException(ioe);
    }
}

/**
 * xml 格式化
 *
 * @param xml
 * @return
 */
public static String xmlFormat(String xml) {
    if (TextUtils.isEmpty(xml)) {
        return "Empty/Null xml content";
    }
    String message;
    try {
        Source xmlInput = new StreamSource(new StringReader(xml));
        StreamResult xmlOutput = new StreamResult(new StringWriter());
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
        transformer.transform(xmlInput, xmlOutput);
        message = xmlOutput.getWriter().toString().replaceFirst(">", ">\n");
    } catch (TransformerException e) {
        message = xml;
    }
    return message;
}

/**
 * Converts the Node/Element instance to XML payload.
 *
 * @param node the node/element instance to convert
 * @return the XML payload representing the node/element
 * @throws AlipayApiException problem converting XML to string
 */
public static String childNodeToString(Node node) throws AlipayApiException {
    String payload = null;

    try {
        Transformer tf = TransformerFactory.newInstance().newTransformer();

        Properties props = tf.getOutputProperties();
        props.setProperty(OutputKeys.OMIT_XML_DECLARATION, LOGIC_YES);
        tf.setOutputProperties(props);

        StringWriter writer = new StringWriter();
        tf.transform(new DOMSource(node), new StreamResult(writer));
        payload = writer.toString();
        payload = payload.replaceAll(REG_INVALID_CHARS, " ");
    } catch (TransformerException e) {
        throw new AlipayApiException("XML_TRANSFORM_ERROR", e);
    }

    return payload;
}

/**
    * Writes the modified web.xml back out to war file
    * 
    * @param doc
    *            The application.xml DOM Document
    * @throws org.apache.tools.ant.DeployException
    *             in case of any problems
    */
   protected void writeWebXml(final Document doc, final OutputStream outputStream) throws DeployException {
try {
    doc.normalize();

    // Prepare the DOM document for writing
    DOMSource source = new DOMSource(doc);

    // Prepare the output file
    StreamResult result = new StreamResult(outputStream);

    // Write the DOM document to the file
    // Get Transformer
    Transformer xformer = TransformerFactory.newInstance().newTransformer();
    // Write to a file
    xformer.transform(source, result);
} catch (TransformerException tex) {
    throw new DeployException("Error writing out modified web xml ", tex);
}
   }

public static void write(Document doc, OutputStream out) throws IOException {
    // XXX note that this may fail to write out namespaces correctly if the document
    // is created with namespaces and no explicit prefixes; however no code in
    // this package is likely to be doing so
    try {
        Transformer t = TransformerFactory.newInstance().newTransformer(
                new StreamSource(new StringReader(IDENTITY_XSLT_WITH_INDENT)));
        DocumentType dt = doc.getDoctype();
        if (dt != null) {
            String pub = dt.getPublicId();
            if (pub != null) {
                t.setOutputProperty(OutputKeys.DOCTYPE_PUBLIC, pub);
            }
            t.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM, dt.getSystemId());
        }
        t.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); // NOI18N
        Source source = new DOMSource(doc);
        Result result = new StreamResult(out);
        t.transform(source, result);
    } catch (Exception | TransformerFactoryConfigurationError e) {
        throw new IOException(e);
    }
}

public PomModifier(final Path projectDirectory, final Path gitDirectory) {
    if (builderFactory == null) {
        builderFactory = DocumentBuilderFactory.newInstance();
        transformerFactory = TransformerFactory.newInstance();
        try {
            builder = builderFactory.newDocumentBuilder();
            transformer = transformerFactory.newTransformer();
            transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
            transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
        } catch (ParserConfigurationException | TransformerConfigurationException e) {
            throw new IllegalStateException(e);
        }
    }
    this.projectPomFile = gitDirectory.resolve("pom.xml");
    this.projectDirectory = projectDirectory;
    this.gitDirectory = gitDirectory;
}

/**
 * Test for the isIgnoringElementContentWhitespace and the
 * setIgnoringElementContentWhitespace. The xml file has all kinds of
 * whitespace,tab and newline characters, it uses the MyNSContentHandler
 * which does not invoke the characters callback when this
 * setIgnoringElementContentWhitespace is set to true.
 * @throws Exception If any errors occur.
 */
@Test
public void testCheckElementContentWhitespace() throws Exception {
    String goldFile = GOLDEN_DIR + "dbfactory02GF.out";
    String outputFile = USER_DIR + "dbfactory02.out";
    MyErrorHandler eh = MyErrorHandler.newInstance();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(true);
    assertFalse(dbf.isIgnoringElementContentWhitespace());
    dbf.setIgnoringElementContentWhitespace(true);
    DocumentBuilder db = dbf.newDocumentBuilder();
    db.setErrorHandler(eh);
    Document doc = db.parse(new File(XML_DIR, "DocumentBuilderFactory06.xml"));
    assertFalse(eh.isErrorOccured());
    DOMSource domSource = new DOMSource(doc);
    TransformerFactory tfactory = TransformerFactory.newInstance();
    Transformer transformer = tfactory.newTransformer();
    SAXResult saxResult = new SAXResult();
    try(MyCHandler handler = MyCHandler.newInstance(new File(outputFile))) {
        saxResult.setHandler(handler);
        transformer.transform(domSource, saxResult);
    }
    assertTrue(compareWithGold(goldFile, outputFile));
}

public static String readMode(FileObject fo) throws IOException {
    final InputStream is = fo.getInputStream();
    try {
        StringWriter w = new StringWriter();
        Source t = new StreamSource(DesignSupport.class.getResourceAsStream("polishing.xsl")); // NOI18N
        Transformer tr = TransformerFactory.newInstance().newTransformer(t);
        Source s = new StreamSource(is);
        Result r = new StreamResult(w);
        tr.transform(s, r);
        return w.toString();
    } catch (TransformerException ex) {
        throw new IOException(ex);
    } finally {
        is.close();
    }
}

/**
 * Builds a {@link VerificationResult} from a GeTeTa {@link Message}.
 *
 * @param source the original top-level XML node of the verification result
 * @param importedMessage the JAXB-converted GeTeTa {@link Message} object
 * @return the imported result
 * @throws ImportException if an error occurs while importing
 */
private VerificationResult makeVerificationResult(Node source, Message importedMessage)
    throws ImportException {
  try {
    /* Write log to file */
    File logFile = File.createTempFile("log-verification-", ".xml");
    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    DOMSource domSource = new DOMSource(source);
    StreamResult result = new StreamResult(logFile);
    transformer.transform(domSource, result);

    /* Return appropriate VerificationResult */
    switch (importedMessage.getReturncode()) {
      case RETURN_CODE_SUCCESS:
        return new VerificationSuccess(logFile);
      case RETURN_CODE_NOT_VERIFIED:
        return new edu.kit.iti.formal.stvs.model.verification.Counterexample(
            parseCounterexample(importedMessage), logFile);
      default:
        return new VerificationError(VerificationError.Reason.ERROR, logFile);
    }
  } catch (TransformerException | IOException exception) {
    throw new ImportException(exception);
  }
}

private static String toString(Source response) throws TransformerException, IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    transformer.transform(response, new StreamResult(bos));
    bos.close();
    return new String(bos.toByteArray());
}

/**
    * Transforms the XML content to XHTML/HTML format string with the XSL.
    *
    * @param payload the XML payload to convert
    * @param xsltFile the XML stylesheet file
    * @return the transformed XHTML/HTML format string
    * @throws AlipayApiException problem converting XML to HTML
    */
   public static String xmlToHtml(String payload, File xsltFile)
throws AlipayApiException {
       String result = null;

       try {
           Source template = new StreamSource(xsltFile);
           Transformer transformer = TransformerFactory.newInstance()
                   .newTransformer(template);

           Properties props = transformer.getOutputProperties();
           props.setProperty(OutputKeys.OMIT_XML_DECLARATION, LOGIC_YES);
           transformer.setOutputProperties(props);

           StreamSource source = new StreamSource(new StringReader(payload));
           StreamResult sr = new StreamResult(new StringWriter());
           transformer.transform(source, sr);

           result = sr.getWriter().toString();
       } catch (TransformerException e) {
           throw new AlipayApiException("XML_TRANSFORM_ERROR", e);
       }

       return result;
   }

/**
 * Marshal the saml xml object to raw xml.
 *
 * @param object the object
 * @param writer the writer
 * @return the xml string
 */
public String marshalSamlXmlObject(final XMLObject object, final StringWriter writer)  {
    try {
        final MarshallerFactory marshallerFactory = XMLObjectProviderRegistrySupport.getMarshallerFactory();
        final Marshaller marshaller = marshallerFactory.getMarshaller(object);
        if (marshaller == null) {
            throw new IllegalArgumentException("Cannot obtain marshaller for object " + object.getElementQName());
        }
        final Element element = marshaller.marshall(object);
        element.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", SAMLConstants.SAML20_NS);
        element.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xenc", "http://www.w3.org/2001/04/xmlenc#");

        final TransformerFactory transFactory = TransformerFactory.newInstance();
        final Transformer transformer = transFactory.newTransformer();
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.transform(new DOMSource(element), new StreamResult(writer));
        return writer.toString();
    } catch (final Exception e) {
        throw new IllegalStateException("An error has occurred while marshalling SAML object to xml", e);
    }
}

/**
 * Marshal the saml xml object to raw xml.
 *
 * @param object the object
 * @param writer the writer
 * @return the xml string
 */
public String marshalSamlXmlObject(final XMLObject object, final StringWriter writer)  {
    try {
        final MarshallerFactory marshallerFactory = XMLObjectProviderRegistrySupport.getMarshallerFactory();
        final Marshaller marshaller = marshallerFactory.getMarshaller(object);
        if (marshaller == null) {
            throw new IllegalArgumentException("Cannot obtain marshaller for object " + object.getElementQName());
        }
        final Element element = marshaller.marshall(object);
        element.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", SAMLConstants.SAML20_NS);
        element.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xenc", "http://www.w3.org/2001/04/xmlenc#");

        final TransformerFactory transFactory = TransformerFactory.newInstance();
        final Transformer transformer = transFactory.newTransformer();
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.transform(new DOMSource(element), new StreamResult(writer));
        return writer.toString();
    } catch (final Exception e) {
        throw new IllegalStateException("An error has occurred while marshalling SAML object to xml", e);
    }
}

protected String domSourceToString() throws SQLException {
    try {
        DOMSource source = new DOMSource(this.asDOMResult.getNode());
        Transformer identity = TransformerFactory.newInstance().newTransformer();
        StringWriter stringOut = new StringWriter();
        Result result = new StreamResult(stringOut);
        identity.transform(source, result);

        return stringOut.toString();
    } catch (Throwable t) {
        SQLException sqlEx = SQLError.createSQLException(t.getMessage(), SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
        sqlEx.initCause(t);

        throw sqlEx;
    }
}

/**
 * Converts the Node/Element instance to XML payload.
 *
 * @param node the node/element instance to convert
 * @return the XML payload representing the node/element
 * @throws ApiException problem converting XML to string
 */
public static String childNodeToString(Node node) throws AlipayApiException {
    String payload = null;

    try {
        Transformer tf = TransformerFactory.newInstance().newTransformer();

        Properties props = tf.getOutputProperties();
        props.setProperty(OutputKeys.OMIT_XML_DECLARATION, LOGIC_YES);
        tf.setOutputProperties(props);

        StringWriter writer = new StringWriter();
        tf.transform(new DOMSource(node), new StreamResult(writer));
        payload = writer.toString();
        payload = payload.replaceAll(REG_INVALID_CHARS, " ");
    } catch (TransformerException e) {
        throw new AlipayApiException("XML_TRANSFORM_ERROR", e);
    }

    return payload;
}

@Test
public void test() {
    try {
        SAXParserFactory fac = SAXParserFactory.newInstance();
        fac.setNamespaceAware(true);
        SAXParser saxParser = fac.newSAXParser();

        StreamSource src = new StreamSource(new StringReader(SIMPLE_TESTXML));
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        DOMResult result = new DOMResult();
        transformer.transform(src, result);
    } catch (Throwable ex) {
        // unexpected failure
        ex.printStackTrace();
        Assert.fail(ex.toString());
    }
}

public static void printDocument(Node node, OutputStream out) {
  try {
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
    transformer.setOutputProperty(OutputKeys.METHOD, "xml");
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");

    transformer.transform(
        new DOMSource(node),
        new StreamResult(new OutputStreamWriter(out, "UTF-8")));
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

/**
 * Converts the Node/Element instance to XML payload.
 *
 * @param node the node/element instance to convert
 * @return the XML payload representing the node/element
 * @throws AlipayApiException problem converting XML to string
 */
public static String childNodeToString(Node node) throws AlipayApiException {
    String payload = null;

    try {
        Transformer tf = TransformerFactory.newInstance().newTransformer();

        Properties props = tf.getOutputProperties();
        props.setProperty(OutputKeys.OMIT_XML_DECLARATION, LOGIC_YES);
        tf.setOutputProperties(props);

        StringWriter writer = new StringWriter();
        tf.transform(new DOMSource(node), new StreamResult(writer));
        payload = writer.toString();
        payload = payload.replaceAll(REG_INVALID_CHARS, " ");
    } catch (TransformerException e) {
        throw new AlipayApiException("XML_TRANSFORM_ERROR", e);
    }

    return payload;
}

protected String domSourceToString() throws SQLException {
    try {
        DOMSource source = new DOMSource(this.asDOMResult.getNode());
        Transformer identity = TransformerFactory.newInstance().newTransformer();
        StringWriter stringOut = new StringWriter();
        Result result = new StreamResult(stringOut);
        identity.transform(source, result);

        return stringOut.toString();
    } catch (Throwable t) {
        SQLException sqlEx = SQLError.createSQLException(t.getMessage(), SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
        sqlEx.initCause(t);

        throw sqlEx;
    }
}

public static boolean saveFile(Document document, File file) {
    boolean flag = true;
    try {
        /** 将document中的内容写入文件中 */
        TransformerFactory tFactory = TransformerFactory.newInstance();
        Transformer transformer = tFactory.newTransformer();
        /** 编码 */
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        DOMSource source = new DOMSource(document);
        StreamResult result = new StreamResult(file);
        transformer.transform(source, result);
    } catch (Exception ex) {
        flag = false;
        ex.printStackTrace();
    }
    return flag;
}

/**
 * Transform saml object to String.
 *
 * @param configBean the config bean
 * @param samlObject the saml object
 * @return the string
 * @throws SamlException the saml exception
 */
public static StringWriter transformSamlObject(final OpenSamlConfigBean configBean, final XMLObject samlObject) throws SamlException {
    final StringWriter writer = new StringWriter();
    try {
        final Marshaller marshaller = configBean.getMarshallerFactory().getMarshaller(samlObject.getElementQName());
        if (marshaller != null) {
            final Element element = marshaller.marshall(samlObject);
            final DOMSource domSource = new DOMSource(element);

            final StreamResult result = new StreamResult(writer);
            final TransformerFactory tf = TransformerFactory.newInstance();
            final Transformer transformer = tf.newTransformer();
            transformer.transform(domSource, result);
        }
    } catch (final Exception e) {
        throw new SamlException(e.getMessage(), e);
    }
    return writer;
}

@Override
protected TransformerHandler getTransformerHandler(String xslFileName) throws SAXException, ParserConfigurationException,
        TransformerConfigurationException, IOException {
    SAXTransformerFactory factory = (SAXTransformerFactory) TransformerFactory.newInstance();
    factory.setURIResolver(uriResolver);

    TemplatesHandler templatesHandler = factory.newTemplatesHandler();

    SAXParserFactory pFactory = SAXParserFactory.newInstance();
    pFactory.setNamespaceAware(true);

    XMLReader xmlreader = pFactory.newSAXParser().getXMLReader();

    // create the stylesheet input source
    InputSource xslSrc = new InputSource(xslFileName);

    xslSrc.setSystemId(filenameToURL(xslFileName));
    // hook up the templates handler as the xsl content handler
    xmlreader.setContentHandler(templatesHandler);
    // call parse on the xsl input source

    xmlreader.parse(xslSrc);

    // extract the Templates object created from the xsl input source
    return factory.newTransformerHandler(templatesHandler.getTemplates());
}

@Test
public void test() {
    try {
        String xmlFile = "attribset27.xml";
        String xslFile = "attribset27.xsl";

        TransformerFactory tFactory = TransformerFactory.newInstance();
        // tFactory.setAttribute("generate-translet", Boolean.TRUE);
        Transformer t = tFactory.newTransformer(new StreamSource(getClass().getResourceAsStream(xslFile)));
        StringWriter sw = new StringWriter();
        t.transform(new StreamSource(getClass().getResourceAsStream(xmlFile)), new StreamResult(sw));
        String s = sw.getBuffer().toString();
        Assert.assertFalse(s.contains("color") || s.contains("font-size"));
    } catch (Exception e) {
        Assert.fail(e.getMessage());
    }
}

/**
 * Exports an Object as xml.
 *
 * @param source Object to export
 * @return The output xml is written to this stream
 * @throws ExportException Exception while exporting
 */
public ByteArrayOutputStream export(F source) throws ExportException {
    Node xmlNode = exportToXmlNode(source);
    StringWriter writer = new StringWriter();
    try {
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.transform(new DOMSource(xmlNode), new StreamResult(writer));
        String xmlString = writer.toString();
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        stream.write(xmlString.getBytes("utf-8"));
        return stream;
    } catch (TransformerException | IOException e) {
        throw new ExportException(e);
    }
}

/**
 * xml 格式化
 *
 * @param xml
 * @return
 */
public static String xmlFormat(String xml) {
    if (TextUtils.isEmpty(xml)) {
        return "Empty/Null xml content";
    }
    String message;
    try {
        Source xmlInput = new StreamSource(new StringReader(xml));
        StreamResult xmlOutput = new StreamResult(new StringWriter());
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
        transformer.transform(xmlInput, xmlOutput);
        message = xmlOutput.getWriter().toString().replaceFirst(">", ">\n");
    } catch (TransformerException e) {
        message = xml;
    }
    return message;
}

private static void writeOut(Document doc) throws TransformerException {
    TransformerFactory transformerFactory = TransformerFactory
            .newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
    transformer.setOutputProperty(OutputKeys.STANDALONE, "no");
    DOMSource source = new DOMSource(doc);
    File f = new File("splFile.xml");
    f.delete();
    StreamResult result = new StreamResult(f);

    // Output to console for testing
    // StreamResult result = new StreamResult(System.out);

    transformer.transform(source, result);

    System.out.println("File saved!");

}

private static void writeOut(Document doc) throws TransformerException {
    TransformerFactory transformerFactory = TransformerFactory
            .newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
    transformer.setOutputProperty(OutputKeys.STANDALONE, "no");
    DOMSource source = new DOMSource(doc);
    File f = new File("splFile.xml");
    f.delete();
    StreamResult result = new StreamResult(f);

    // Output to console for testing
    // StreamResult result = new StreamResult(System.out);

    transformer.transform(source, result);

    System.out.println("File saved!");

}

public static String toString(Node node, boolean pretty) {
    if (pretty) {
        trimWhiteSpace(node);
    }
    DOMSource domSource = new DOMSource(node);
    StringWriter writer = new StringWriter();
    StreamResult result = new StreamResult(writer);
    TransformerFactory tf = TransformerFactory.newInstance();
    try {
        Transformer transformer = tf.newTransformer();
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        if (pretty) {
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
        }
        transformer.transform(domSource, result);
        return writer.toString();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

@Test
public void test() throws Exception {
    TransformerHandler th = ((SAXTransformerFactory) TransformerFactory.newInstance()).newTransformerHandler();

    DOMResult result = new DOMResult();
    th.setResult(result);

    th.startDocument();
    th.startElement("", "root", "root", new AttributesImpl());
    th.characters(new char[0], 0, 0);
    th.endElement("", "root", "root");
    th.endDocument();

    // there's no point in having empty text --- we should remove it
    Assert.assertEquals(0, ((Document) result.getNode()).getDocumentElement().getChildNodes().getLength());
}

@Test
public void test() {
    try {

        Source source = new StreamSource(util.BOMInputStream.createStream("UTF-16BE", this.getClass().getResourceAsStream("Hello.wsdl.data")),
                    this.getClass().getResource("Hello.wsdl.data").toExternalForm());
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        TransformerFactory factory = TransformerFactory.newInstance();
        Transformer transformer = factory.newTransformer();
        transformer.transform(source, new StreamResult(baos));
        System.out.println(new String(baos.toByteArray()));
        ByteArrayInputStream bis = new ByteArrayInputStream(baos.toByteArray());
        InputSource inSource = new InputSource(bis);

        XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance();
        xmlInputFactory.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, Boolean.TRUE);
        XMLStreamReader reader = xmlInputFactory.createXMLStreamReader(inSource.getSystemId(), inSource.getByteStream());
        while (reader.hasNext()) {
            reader.next();
        }
    } catch (Exception ex) {
        ex.printStackTrace(System.err);
        Assert.fail("Exception occured: " + ex.getMessage());
    }
}

/**
 * the format should be something like this: [ ['My Workspace', null, ['Mary Morgan Folder', null, ['3 activity
 * sequence','1024'] ], ['Organisations', null, ['Developers Playpen', null, ['Lesson Sequence Folder', null,
 * ['',null] ] ], ['MATH111', null, ['Lesson Sequence Folder', null, ['',null] ] ] ] ] ]
 */
@Override
public String toString() {
    // return '[' + convert() + ']';

    Document document = getDocument();

    try {
    DOMSource domSource = new DOMSource(document);
    StringWriter writer = new StringWriter();
    StreamResult result = new StreamResult(writer);
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    transformer.transform(domSource, result);
    return writer.toString();
    } catch (TransformerException ex) {
    ex.printStackTrace();
    return null;
    }
}

public void save(String fileName)
{
    try
    {
       // Use a Transformer for output
       TransformerFactory tFactory = TransformerFactory.newInstance();
       Transformer transformer = tFactory.newTransformer();

       // Get (and preserve) Document's DOCTYPE attribute
       /// TODO: keving: String systemValue = (new File(((Document) getNode()).getDoctype().getSystemId())).getName(); 
       // transformer.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM, systemValue);

       DOMSource source = new DOMSource((Document)getNode());
       StreamResult result = new StreamResult(fileName);
       transformer.transform(source, result);
    }
    catch (Exception e)
    {           
        logger.log(Level.INFO, "ERROR: Exception while saving XML document " + e.getMessage());
    }

}

private static void writeXml(final Document doc, final File file) throws IOException {
    doc.normalize();

    final TransformerFactory transformerFactory = TransformerFactory.newInstance(XML_FACTORY, null);

    try {
        final Transformer transformer = transformerFactory.newTransformer();
        transformer.setOutputProperty(OutputKeys.METHOD, "xml");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
        transformer.transform(new DOMSource(doc), new StreamResult(file));
    } catch (final TransformerException ex) {
        throw new IOException(ex.getMessage(), ex);
    }
}

/**
 * Hulpmethode om een xml fragment uit een node te halen middels xpath.
 * @param locatie de locatie van de node als xpath.
 * @param xPath een XPath instantie
 * @param node de basis node
 * @return de text
 */
protected static String getXmlFragment(final String locatie, final XPath xPath, final Node node) {
    try {
        final Node xPathNode = (Node) xPath.evaluate(locatie, node, XPathConstants.NODE);
        if (xPathNode != null) {
            final StringWriter buf = new StringWriter();
            final Transformer xform = TransformerFactory.newInstance().newTransformer();
            xform.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
            xform.transform(new DOMSource(xPathNode), new StreamResult(buf));
            return buf.toString();
        }
    } catch (final XPathExpressionException | TransformerException e) {
        LOGGER.error("XPath voor text content kon niet worden geëvalueerd voor locatie {}.", locatie);
        throw new UnsupportedOperationException(e);
    }
    return null;
}

/**
 * @bug 8152530
 * Verifies that StAXSource handles empty namespace properly. NPE was thrown
 * before the fix.
 * @throws Exception if the test fails
 */
@Test
public final void testStAXSourceWEmptyNS() throws Exception {
    String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
        + "<EntityList>\n"
        + "  <Entity xmlns=\"\">\n"
        + "  </Entity>\n"
        + "  <Entity xmlns=\"\">\n"
        + "  </Entity>\n"
        + "</EntityList> ";

    XMLInputFactory xif = XMLInputFactory.newInstance();
    XMLStreamReader xsr = xif.createXMLStreamReader(new StringReader(xml));
    xsr.nextTag();
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer t = tf.newTransformer();
    while (xsr.nextTag() == XMLStreamConstants.START_ELEMENT && xsr.getLocalName().equals("Entity")) {
        StringWriter stringResult = new StringWriter();
        t.transform(new StAXSource(xsr), new StreamResult(stringResult));
        System.out.println("result: \n" + stringResult.toString());
    }
}

/**
 * Returns properly configured (e.g. security features) factory
 * - securityProcessing == is set based on security processing property, default is true
 */
public static TransformerFactory createTransformerFactory(boolean disableSecureProcessing) throws IllegalStateException {
    try {
        TransformerFactory factory = TransformerFactory.newInstance();
        if (LOGGER.isLoggable(Level.FINE)) {
            LOGGER.log(Level.FINE, "TransformerFactory instance: {0}", factory);
        }
        factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, !isXMLSecurityDisabled(disableSecureProcessing));
        return factory;
    } catch (TransformerConfigurationException ex) {
        LOGGER.log(Level.SEVERE, null, ex);
        throw new IllegalStateException( ex);
    } catch (AbstractMethodError er) {
        LOGGER.log(Level.SEVERE, null, er);
        throw new IllegalStateException(Messages.INVALID_JAXP_IMPLEMENTATION.format(), er);
    }
}

@Test
public void test() {
    try {
        String xmlFile = "numbering63.xml";
        String xslFile = "numbering63.xsl";

        TransformerFactory tFactory = TransformerFactory.newInstance();
        // tFactory.setAttribute("generate-translet", Boolean.TRUE);
        Transformer t = tFactory.newTransformer(new StreamSource(getClass().getResourceAsStream(xslFile), getClass().getResource(xslFile).toString()));
        StringWriter sw = new StringWriter();
        t.transform(new StreamSource(getClass().getResourceAsStream(xmlFile)), new StreamResult(sw));
        String s = sw.getBuffer().toString();
        Assert.assertFalse(s.contains("1: Level A"));
    } catch (Exception e) {
        Assert.fail(e.getMessage());
    }
}

/**
 * Helper to make an XML Transformer.
 *
 * @param declaration If true, include the XML declaration.
 * @param indent If true, set up the transformer to indent.
 * @return A suitable {@code Transformer}.
 */
public static Transformer makeTransformer(boolean declaration,
                                          boolean indent) {
    Transformer tf = null;
    try {
        TransformerFactory factory = TransformerFactory.newInstance();
        factory.setAttribute("indent-number", new Integer(2));
        tf = factory.newTransformer();
        tf.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        tf.setOutputProperty(OutputKeys.METHOD, "xml");
        if (!declaration) {
            tf.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        }
        if (indent) {
            tf.setOutputProperty(OutputKeys.INDENT, "yes");
            tf.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
        }
    } catch (TransformerException e) {
        logger.log(Level.WARNING, "Failed to install transformer!", e);
    }
    return tf;
}