Java Code Examples for org.w3c.dom.DOMImplementation#getFeature()

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    Document document = builder.newDocument();

    DOMImplementation impl = document.getImplementation();
    DOMImplementationLS implLS = (DOMImplementationLS) impl.getFeature("LS", "3.0");
    LSSerializer dsi = implLS.createLSSerializer();

    /* We should have here incorrect document without getXmlVersion() method:
     * Such Document is generated by replacing the JDK bootclasses with it's
     * own Node,Document and DocumentImpl classes (see run.sh). According to
     * XERCESJ-1007 the AbstractMethodError should be thrown in such case.
     */
    String result = dsi.writeToString(document);
    System.out.println("Result:" + result);
}
 

/***
 * Helper method which converts XML Document into pretty formatted string
 *
 * @param doc to convert
 * @return converted XML as String
 */
public static String documentToString(Document doc) {

    String strMsg = "";
    try {
        DOMImplementation domImpl = doc.getImplementation();
        DOMImplementationLS domImplLS = (DOMImplementationLS) domImpl.getFeature("LS", "3.0");
        LSSerializer lsSerializer = domImplLS.createLSSerializer();
        lsSerializer.getDomConfig().setParameter("format-pretty-print", true);

        Writer stringWriter = new StringWriter();
        LSOutput lsOutput = domImplLS.createLSOutput();
        lsOutput.setEncoding("UTF-8");
        lsOutput.setCharacterStream(stringWriter);
        lsSerializer.write(doc, lsOutput);
        strMsg = stringWriter.toString();
    } catch (Exception e) {
        logger.warn("Error occurred when converting document to string", e);
    }
    return strMsg;
}
 

static public String getInnerXmlText(Node xmlNode)
{
    StringBuilder result = new StringBuilder();

    Document xmlDocument = xmlNode.getOwnerDocument();
    DOMImplementation xmlDocumentImpl = xmlDocument.getImplementation();
    DOMImplementationLS lsImpl = (DOMImplementationLS) xmlDocumentImpl.getFeature("LS", "3.0");
    LSSerializer lsSerializer = lsImpl.createLSSerializer();

    NodeList childNodes = xmlNode.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        String childText = lsSerializer.writeToString(childNodes.item(i));
        int pos = childText.indexOf("?>");
        if (pos > -1) {
            childText = childText.substring(pos + 2);
        }
        result.append(childText);
    }

    return result.toString();
}
 

public static String toXml(Document domDoc) throws TransformerException {
    DOMImplementation domImplementation = domDoc.getImplementation();
    if (domImplementation.hasFeature("LS", "3.0") && domImplementation.hasFeature("Core", "2.0")) {
        DOMImplementationLS domImplementationLS = (DOMImplementationLS) domImplementation.getFeature("LS", "3.0");
        LSSerializer lsSerializer = domImplementationLS.createLSSerializer();
        DOMConfiguration domConfiguration = lsSerializer.getDomConfig();
        if (domConfiguration.canSetParameter("xml-declaration", Boolean.TRUE))
            lsSerializer.getDomConfig().setParameter("xml-declaration", Boolean.FALSE);
        if (domConfiguration.canSetParameter("format-pretty-print", Boolean.TRUE)) {
            lsSerializer.getDomConfig().setParameter("format-pretty-print", Boolean.TRUE);
            LSOutput lsOutput = domImplementationLS.createLSOutput();
            lsOutput.setEncoding("UTF-8");
            StringWriter stringWriter = new StringWriter();
            lsOutput.setCharacterStream(stringWriter);
            lsSerializer.write(domDoc, lsOutput);
            return stringWriter.toString();
        }
    }
    return toXml((Node) domDoc);
}
 

private void format(Document document, Writer writer) {
   DOMImplementation implementation = document.getImplementation();

   if(implementation.hasFeature(LS_FEATURE_KEY, LS_FEATURE_VERSION) && implementation.hasFeature(CORE_FEATURE_KEY, CORE_FEATURE_VERSION)) {
      DOMImplementationLS implementationLS = (DOMImplementationLS) implementation.getFeature(LS_FEATURE_KEY, LS_FEATURE_VERSION);
      LSSerializer serializer = implementationLS.createLSSerializer();
      DOMConfiguration configuration = serializer.getDomConfig();
      
      configuration.setParameter("format-pretty-print", Boolean.TRUE);
      configuration.setParameter("comments", preserveComments);
      
      LSOutput output = implementationLS.createLSOutput();
      output.setEncoding("UTF-8");
      output.setCharacterStream(writer);
      serializer.write(document, output);
   }
}
 

public String stringFromDoc(Document doc) {
    DOMImplementation impl = doc.getImplementation();
    DOMImplementationLS implLS = (DOMImplementationLS) impl.getFeature("LS", "3.0");
    LSSerializer lsSerializer = implLS.createLSSerializer();
    lsSerializer.getDomConfig().setParameter("format-pretty-print", true);

    LSOutput lsOutput = implLS.createLSOutput();
    lsOutput.setEncoding("UTF-8");
    Writer stringWriter = new StringWriter();
    lsOutput.setCharacterStream(stringWriter);
    lsSerializer.write(doc, lsOutput);

    return stringWriter.toString();
}
 

public LSInput resolveResource(String type, 
                               String namespaceURI, 
                               String publicId, 
                               String systemId, 
                               String baseURI) {
    
     LSInput lsi = mDelegate.resolveResource(type, namespaceURI, publicId, systemId, baseURI);

     if (lsi == null) {
         //if we can not get an input from catalog, then it could that
         //there as a schema in types section which refer to schema compoment from other inline schema
         //so we try to check in other inline schema.
         WSDLSchema schema = findSchema(namespaceURI);
         if(schema != null) {
             Reader in = createInlineSchemaSource(mWsdlText, mWsdlPrefixes, mWsdlLinePositions, schema);
             if(in != null) {
                 //create LSInput object
                 DOMImplementation domImpl = null;
                 try {
                     domImpl =  DocumentBuilderFactory.newInstance().newDocumentBuilder().getDOMImplementation();
                 } catch (ParserConfigurationException ex) {
                     Logger.getLogger(getClass().getName()).log(Level.SEVERE, "resolveResource", ex); //NOI18N
                     return null;
                 }

                 DOMImplementationLS dols = (DOMImplementationLS) domImpl.getFeature("LS","3.0");
                 lsi = dols.createLSInput();
                 lsi.setCharacterStream(in);

                 if(mWsdlSystemId != null) {
                     lsi.setSystemId(mWsdlSystemId);
                 }
                 return lsi;  
             }
         }
     }
     return lsi;                      
}
 

/**
 * Write a DOM Document to an output stream.
 * 
 * @param doc
 *        The DOM Document to write.
 * @param out
 *        The output stream.
 */
public static String writeDocumentToString(Document doc)
{
	try
	{
		
		StringWriter sw = new StringWriter();
		
		 DocumentBuilderFactory factory 
		   = DocumentBuilderFactory.newInstance();
		  DocumentBuilder builder = factory.newDocumentBuilder();
		  DOMImplementation impl = builder.getDOMImplementation();
		  
		
		DOMImplementationLS feature = (DOMImplementationLS) impl.getFeature("LS",
		"3.0");
		LSSerializer serializer = feature.createLSSerializer();
		LSOutput output = feature.createLSOutput();
		output.setCharacterStream(sw);
		output.setEncoding("UTF-8");
		serializer.write(doc, output);
		
		sw.flush();
		return sw.toString();
	}
	catch (Exception any)
	{
		log.warn("writeDocumentToString: " + any.toString());
		return null;
	}
}
 

/**
 * Write a DOM Document to an output stream.
 * 
 * @param doc
 *        The DOM Document to write.
 * @param out
 *        The output stream.
 */
public static String writeDocumentToString(Document doc)
{
	try
	{
		
		StringWriter sw = new StringWriter();
		
		  DocumentBuilder builder = dbFactory.newDocumentBuilder();
		  DOMImplementation impl = builder.getDOMImplementation();
		  
		
		DOMImplementationLS feature = (DOMImplementationLS) impl.getFeature("LS",
		"3.0");
		LSSerializer serializer = feature.createLSSerializer();
		LSOutput output = feature.createLSOutput();
		output.setCharacterStream(sw);
		output.setEncoding("UTF-8");
		serializer.write(doc, output);
		
		sw.flush();
		return sw.toString();
	}
	catch (Exception any)
	{
		log.warn("writeDocumentToString: " + any.toString());
		return null;
	}
}
 

private String toXML(Document doc) {
    StringWriter result = new StringWriter();

    DOMImplementation impl = documentBuilder.getDOMImplementation();
    DOMImplementationLS feature = (DOMImplementationLS) impl.getFeature("LS", "3.0");
    LSSerializer serializer = feature.createLSSerializer();
    LSOutput lsoutput = feature.createLSOutput();
    lsoutput.setCharacterStream(result);
    lsoutput.setEncoding("UTF-8");
    serializer.write(doc, lsoutput);

    result.flush();

    return result.toString();
}
 

/**
 * Write a DOM Document to an output stream.
 * 
 * @param doc
 *        The DOM Document to write.
 * @param out
 *        The output stream.
 */
public static String writeDocumentToString(Document doc)
{
	try
	{
		
		StringWriter sw = new StringWriter();
		
		 DocumentBuilderFactory factory 
		   = DocumentBuilderFactory.newInstance();
		  DocumentBuilder builder = factory.newDocumentBuilder();
		  DOMImplementation impl = builder.getDOMImplementation();
		  
		
		DOMImplementationLS feature = (DOMImplementationLS) impl.getFeature("LS",
		"3.0");
		LSSerializer serializer = feature.createLSSerializer();
		LSOutput output = feature.createLSOutput();
		output.setCharacterStream(sw);
		output.setEncoding("UTF-8");
		serializer.write(doc, output);
		
		sw.flush();
		return sw.toString();
	}
	catch (Exception any)
	{
		log.warn("writeDocumentToString: " + any.toString());
		return null;
	}
}
 

/**
 * Write a DOM Document to an output stream.
 * 
 * @param doc
 *        The DOM Document to write.
 * @param out
 *        The output stream.
 */
public static String writeDocumentToString(Document doc)
{
	try
	{
		
		StringWriter sw = new StringWriter();
		
		  DocumentBuilder builder = dbFactory.newDocumentBuilder();
		  DOMImplementation impl = builder.getDOMImplementation();
		  
		
		DOMImplementationLS feature = (DOMImplementationLS) impl.getFeature("LS",
		"3.0");
		LSSerializer serializer = feature.createLSSerializer();
		LSOutput output = feature.createLSOutput();
		output.setCharacterStream(sw);
		output.setEncoding("UTF-8");
		serializer.write(doc, output);
		
		sw.flush();
		return sw.toString();
	}
	catch (Exception any)
	{
		log.warn("writeDocumentToString: " + any.toString());
		return null;
	}
}
 

private String toXML(Document doc) {
    StringWriter result = new StringWriter();

    DOMImplementation impl = documentBuilder.getDOMImplementation();
    DOMImplementationLS feature = (DOMImplementationLS) impl.getFeature("LS", "3.0");
    LSSerializer serializer = feature.createLSSerializer();
    LSOutput lsoutput = feature.createLSOutput();
    lsoutput.setCharacterStream(result);
    lsoutput.setEncoding("UTF-8");
    serializer.write(doc, lsoutput);

    result.flush();

    return result.toString();
}
 

/**
 * Get the DOM Level 3 Load/Save {@link DOMImplementationLS} for the given node.
 *
 * @param node the node to evaluate
 * @return the DOMImplementationLS for the given node
 */
public static DOMImplementationLS getLSDOMImpl(Node node) {
  DOMImplementation domImpl;
  if (node instanceof Document) {
    domImpl = ((Document) node).getImplementation();
  } else {
    domImpl = node.getOwnerDocument().getImplementation();
  }

  DOMImplementationLS domImplLS = (DOMImplementationLS) domImpl.getFeature("LS", "3.0");
  return domImplLS;
}
 

/**
 * Get the DOM Level 3 Load/Save {@link DOMImplementationLS} for the given node.
 * 
 * @param node the node to evaluate
 * @return the DOMImplementationLS for the given node
 */
public static DOMImplementationLS getLSDOMImpl(Node node) {
    DOMImplementation domImpl;
    if (node instanceof Document) {
        domImpl = ((Document) node).getImplementation();
    } else {
        domImpl = node.getOwnerDocument().getImplementation();
    }

    DOMImplementationLS domImplLS = (DOMImplementationLS) domImpl.getFeature("LS", "3.0");
    return domImplLS;
}
 

/**
 * Equivalence class partitioning with state and input values orientation
 * for public void setParameter(String name, Object value) throws
 * DOMException, <br>
 * <b>pre-conditions</b>: the root element contains a fully-normalized text, <br>
 * <b>name</b>: check-character-normalization <br>
 * <b>value</b>: false. <br>
 * <b>Expected results</b>: LSParser reports no errors
 */
@Test
public void testCheckCharNorm002() {
    DOMImplementation domImpl = null;
    try {
        domImpl = DocumentBuilderFactory.newInstance().newDocumentBuilder().getDOMImplementation();
    } catch (ParserConfigurationException pce) {
        Assert.fail(pce.toString());
    } catch (FactoryConfigurationError fce) {
        Assert.fail(fce.toString());
    }

    DOMImplementationLS lsImpl = (DOMImplementationLS) domImpl.getFeature("LS", "3.0");

    if (lsImpl == null) {
        System.out.println("OK, the DOM implementation does not support the LS 3.0");
        return;
    }

    LSParser lsParser = lsImpl.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null);

    DOMConfiguration config = lsParser.getDomConfig();

    if (!config.canSetParameter("check-character-normalization", Boolean.FALSE)) {
        Assert.fail("setting 'check-character-normalization' to false is not supported");
    }

    config.setParameter("check-character-normalization", Boolean.FALSE);

    TestHandler testHandler = new TestHandler();
    config.setParameter("error-handler", testHandler);

    LSInput lsInput = lsImpl.createLSInput();
    lsInput.setStringData("<root>fully-normalized</root>");
    Document doc = lsParser.parse(lsInput);

    if (null != testHandler.getError()) {
        Assert.fail("no error is expected, but reported: " + testHandler.getError());

    }

    return; // Status.passed("OK");

}
 

/**
 * Equivalence class partitioning with state and input values orientation
 * for public void setParameter(String name, Object value) throws
 * DOMException, <br>
 * <b>pre-conditions</b>: the root element has one Text node with not fully
 * normalized characters, the 'check-character-normalization' parameter set
 * to true, <br>
 * <b>name</b>: error-handler <br>
 * <b>value</b>: DOMErrorHandler. <br>
 * <b>Expected results</b>: LSParser calls the specified error handler
 */
@Test
public void testCheckCharNorm001() {
    DOMImplementation domImpl = null;
    try {
        domImpl = DocumentBuilderFactory.newInstance().newDocumentBuilder().getDOMImplementation();
    } catch (ParserConfigurationException pce) {
        Assert.fail(pce.toString());
    } catch (FactoryConfigurationError fce) {
        Assert.fail(fce.toString());
    }

    DOMImplementationLS lsImpl = (DOMImplementationLS) domImpl.getFeature("LS", "3.0");

    if (lsImpl == null) {
        System.out.println("OK, the DOM implementation does not support the LS 3.0");
        return;
    }

    LSParser lsParser = lsImpl.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null);

    DOMConfiguration config = lsParser.getDomConfig();

    if (!config.canSetParameter("check-character-normalization", Boolean.TRUE)) {
        System.out.println("OK, setting 'check-character-normalization' to true is not supported");
        return;
    }

    config.setParameter("check-character-normalization", Boolean.TRUE);

    TestHandler testHandler = new TestHandler();
    config.setParameter("error-handler", testHandler);

    LSInput lsInput = lsImpl.createLSInput();
    lsInput.setStringData("<root>\u0073\u0075\u0063\u0327\u006F\u006E</root>");
    Document doc = lsParser.parse(lsInput);

    if (null == testHandler.getError()) {
        Assert.fail("no error is reported, expected 'check-character-normalization-failure'");

    }

    return; // Status.passed("OK");

}
 

@Test
public void testDOMConfiguration() {

    final DOMErrorHandler handler = new DOMErrorHandler() {
        public boolean handleError(final DOMError error) {
            return false;
        }
    };

    final LSResourceResolver resolver = new LSResourceResolver() {
        public LSInput resolveResource(final String type, final String namespaceURI, final String publicId, final String systemId, final String baseURI) {
            return null;
        }
    };

    final Object[][] values = {
            // parameter, value
            { "canonical-form", Boolean.FALSE }, { "cdata-sections", Boolean.FALSE }, { "cdata-sections", Boolean.TRUE },
            { "check-character-normalization", Boolean.FALSE }, { "comments", Boolean.FALSE }, { "comments", Boolean.TRUE },
            { "datatype-normalization", Boolean.FALSE }, { "entities", Boolean.FALSE }, { "entities", Boolean.TRUE }, { "error-handler", handler },
            { "infoset", Boolean.TRUE }, { "namespaces", Boolean.TRUE }, { "namespace-declarations", Boolean.TRUE },
            { "namespace-declarations", Boolean.FALSE }, { "normalize-characters", Boolean.FALSE }, { "split-cdata-sections", Boolean.TRUE },
            { "split-cdata-sections", Boolean.FALSE }, { "validate", Boolean.FALSE }, { "validate-if-schema", Boolean.FALSE },
            { "well-formed", Boolean.TRUE }, { "element-content-whitespace", Boolean.TRUE },

            { "charset-overrides-xml-encoding", Boolean.TRUE }, { "charset-overrides-xml-encoding", Boolean.FALSE }, { "disallow-doctype", Boolean.FALSE },
            { "ignore-unknown-character-denormalizations", Boolean.TRUE }, { "resource-resolver", resolver }, { "resource-resolver", null },
            { "supported-media-types-only", Boolean.FALSE }, };

    DOMImplementation domImpl = null;
    try {
        domImpl = DocumentBuilderFactory.newInstance().newDocumentBuilder().getDOMImplementation();
    } catch (ParserConfigurationException parserConfigurationException) {
        parserConfigurationException.printStackTrace();
        Assert.fail(parserConfigurationException.toString());
    }

    DOMImplementationLS lsImpl = (DOMImplementationLS) domImpl.getFeature("LS", "3.0");

    LSParser lsParser = lsImpl.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null);

    DOMConfiguration config = lsParser.getDomConfig();

    for (int i = values.length; --i >= 0;) {
        Object val = values[i][1];
        String param = (String) values[i][0];
        try {
            config.setParameter(param, val);
            Object returned = config.getParameter(param);
            Assert.assertEquals(val, returned, "'" + param + "' is set to " + returned + ", but expected " + val);
            System.out.println("set '" + param + "'" + " to '" + val + "'" + " and returned '" + returned + "'");
        } catch (DOMException e) {
            String settings = "setting '" + param + "' to " + val;
            System.err.println(settings);
            e.printStackTrace();
            Assert.fail(settings + ", " + e.toString());
        }
    }
}
 

@Test
public void testDOMErrorHandler() {

    final String XML_DOCUMENT = "<?xml version=\"1.0\"?>" + "<hello>" + "world" + "</hello>";

    StringReader stringReader = new StringReader(XML_DOCUMENT);
    InputSource inputSource = new InputSource(stringReader);
    Document doc = null;
    try {
        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        // LSSerializer defaults to Namespace processing
        // so parsing must also
        documentBuilderFactory.setNamespaceAware(true);
        DocumentBuilder parser = documentBuilderFactory.newDocumentBuilder();
        doc = parser.parse(inputSource);

    } catch (Throwable e) {
        e.printStackTrace();
        Assert.fail(e.toString());
    }

    DOMImplementation impl = doc.getImplementation();
    DOMImplementationLS implLS = (DOMImplementationLS) impl.getFeature("LS", "3.0");
    LSSerializer writer = implLS.createLSSerializer();

    System.out.println("Serializer is: " + implLS.getClass().getName() + " " + implLS);

    DOMErrorHandlerImpl eh = new DOMErrorHandlerImpl();
    writer.getDomConfig().setParameter("error-handler", eh);

    boolean serialized = false;
    try {
        serialized = writer.write(doc, new Output());

        // unexpected success
        Assert.fail("Serialized without raising an LSException due to " + "'no-output-specified'.");
    } catch (LSException lsException) {
        // expected exception
        System.out.println("Expected LSException: " + lsException.toString());
        // continue processing
    }

    Assert.assertFalse(serialized, "Expected writer.write(doc, new Output()) == false");

    Assert.assertTrue(eh.NoOutputSpecifiedErrorReceived, "'no-output-specified' error was expected");
}