org.w3c.dom.Document#createDocumentFragment ( )源码实例Demo

private Node appendNewChild(XMLStreamReader reader, boolean wrapped, Document contextDocument,
                            XMLStreamWriter writer, Element element) throws XMLStreamException {
    StaxUtils.copy(reader, writer);

    DocumentFragment result = contextDocument.createDocumentFragment();
    Node child = element.getFirstChild();
    if (wrapped) {
        child = child.getFirstChild();
    }
    if (child != null && child.getNextSibling() == null) {
        return child;
    }
    while (child != null) {
        Node nextChild = child.getNextSibling();
        result.appendChild(child);
        child = nextChild;
    }

    return result;
}
 

/**
 * Method createDocumentFragment
 *
 *
 * NEEDSDOC (createDocumentFragment) @return
 */
synchronized public DTM createDocumentFragment()
{

  try
  {
    DocumentBuilderFactory dbf = FactoryImpl.getDOMFactory(super.useServicesMechnism());
    dbf.setNamespaceAware(true);

    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.newDocument();
    Node df = doc.createDocumentFragment();

    return getDTM(new DOMSource(df), true, null, false, false);
  }
  catch (Exception e)
  {
    throw new DTMException(e);
  }
}
 

/**
 * Method createDocumentFragment
 *
 *
 * NEEDSDOC (createDocumentFragment) @return
 */
synchronized public DTM createDocumentFragment()
{

  try
  {
    DocumentBuilderFactory dbf = JdkXmlUtils.getDOMFactory(super.overrideDefaultParser());

    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.newDocument();
    Node df = doc.createDocumentFragment();

    return getDTM(new DOMSource(df), true, null, false, false);
  }
  catch (Exception e)
  {
    throw new DTMException(e);
  }
}
 

/**
 * Parse the specified input stream in a DOM DocumentFragment, owned by the specified Document.
 * 
 * @param input the InputStream to parse
 * @param owningDocument the Document which will own the returned DocumentFragment
 * @return a DocumentFragment
 * @throws DecryptionException thrown if there is an error parsing the input stream
 */
private DocumentFragment parseInputStream(InputStream input, Document owningDocument) throws DecryptionException {
    // Since Xerces currently seems not to handle parsing into a DocumentFragment
    // without a bit hackery, use this to simulate, so we can keep the API
    // the way it hopefully will look in the future. Obviously this only works for
    // input streams containing valid XML instances, not fragments.

    Document newDocument = null;
    try {
        newDocument = parserPool.parse(input);
    } catch (XMLParserException e) {
        log.error("Error parsing decrypted input stream", e);
        throw new DecryptionException("Error parsing input stream", e);
    }

    Element element = newDocument.getDocumentElement();
    owningDocument.adoptNode(element);

    DocumentFragment container = owningDocument.createDocumentFragment();
    container.appendChild(element);

    return container;
}
 

/**
 * Method createDocumentFragment
 *
 *
 * NEEDSDOC (createDocumentFragment) @return
 */
synchronized public DTM createDocumentFragment()
{

  try
  {
    DocumentBuilderFactory dbf = FactoryImpl.getDOMFactory(super.useServicesMechnism());
    dbf.setNamespaceAware(true);

    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.newDocument();
    Node df = doc.createDocumentFragment();

    return getDTM(new DOMSource(df), true, null, false, false);
  }
  catch (Exception e)
  {
    throw new DTMException(e);
  }
}
 

/**
 * Method createDocumentFragment
 *
 *
 * NEEDSDOC (createDocumentFragment) @return
 */
synchronized public DTM createDocumentFragment()
{

  try
  {
    DocumentBuilderFactory dbf = JdkXmlUtils.getDOMFactory(super.overrideDefaultParser());

    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.newDocument();
    Node df = doc.createDocumentFragment();

    return getDTM(new DOMSource(df), true, null, false, false);
  }
  catch (Exception e)
  {
    throw new DTMException(e);
  }
}
 

/**
 * Method createDocumentFragment
 *
 *
 * NEEDSDOC (createDocumentFragment) @return
 */
synchronized public DTM createDocumentFragment()
{

  try
  {
    DocumentBuilderFactory dbf = FactoryImpl.getDOMFactory(super.useServicesMechnism());
    dbf.setNamespaceAware(true);

    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.newDocument();
    Node df = doc.createDocumentFragment();

    return getDTM(new DOMSource(df), true, null, false, false);
  }
  catch (Exception e)
  {
    throw new DTMException(e);
  }
}
 

/**
 * Creates a RegXML Fragment, represented an XML DOM Document Fragment
 *
 * @param group KLV Group for which the Fragment will be generated.
 * @param document Document from which the XML DOM Document Fragment will be
 * created.
 *
 * @return XML DOM Document Fragment containing a single RegXML Fragment
 *
 * @throws KLVException
 * @throws com.sandflow.smpte.regxml.FragmentBuilder.RuleException
 */
public DocumentFragment fromTriplet(Group group, Document document) throws KLVException, RuleException {

    DocumentFragment df = document.createDocumentFragment();

    applyRule3(df, group);

    /* NOTE: Hack to clean-up namespace prefixes */
    for (Map.Entry<URI, String> entry : nsprefixes.entrySet()) {
        ((Element) df.getFirstChild()).setAttributeNS(XMLNS_NS, "xmlns:" + entry.getValue(), entry.getKey().toString());
    }

    return df;
}
 

public void handleMessage(Message message) throws Fault {
    if (binding.getHandlerChain().isEmpty()) {
        return;
    }
    HandlerChainInvoker invoker = getInvoker(message);
    if (invoker.getLogicalHandlers().isEmpty()) {
        return;
    }

    XMLStreamWriter origWriter = message.getContent(XMLStreamWriter.class);

    Node nd = message.getContent(Node.class);
    SOAPMessage m = message.getContent(SOAPMessage.class);
    Document document = null;

    if (m != null) {
        document = m.getSOAPPart();
    } else if (nd != null) {
        document = nd.getOwnerDocument();
    } else {
        document = DOMUtils.newDocument();
        message.setContent(Node.class, document);
    }

    W3CDOMStreamWriter writer = new W3CDOMStreamWriter(document.createDocumentFragment());

    // Replace stax writer with DomStreamWriter
    message.setContent(XMLStreamWriter.class, writer);
    message.put(ORIGINAL_WRITER, origWriter);

    message.getInterceptorChain().add(ending);
}
 

/**
 * Implemented to replace the content handler currently in use by a 
 * NodeBuilder.
 * 
 * @param namespaceURI the namespace URI of the matching element, or an 
 *   empty string if the parser is not namespace aware or the element has
 *   no namespace
 * @param name the local name if the parser is namespace aware, or just 
 *   the element name otherwise
 * @param attributes The attribute list of this element
 * @throws Exception indicates a JAXP configuration problem
 */
@Override
public void begin(String namespaceURI, String name, Attributes attributes)
    throws Exception {

    XMLReader xmlReader = getDigester().getXMLReader();
    Document doc = documentBuilder.newDocument();
    NodeBuilder builder = null;
    if (nodeType == Node.ELEMENT_NODE) {
        Element element = null;
        if (getDigester().getNamespaceAware()) {
            element =
                doc.createElementNS(namespaceURI, name);
            for (int i = 0; i < attributes.getLength(); i++) {
                element.setAttributeNS(attributes.getURI(i),
                                       attributes.getLocalName(i),
                                       attributes.getValue(i));
            }
        } else {
            element = doc.createElement(name);
            for (int i = 0; i < attributes.getLength(); i++) {
                element.setAttribute(attributes.getQName(i),
                                     attributes.getValue(i));
            }
        }
        builder = new NodeBuilder(doc, element);
    } else {
        builder = new NodeBuilder(doc, doc.createDocumentFragment());
    }
    xmlReader.setContentHandler(builder);

}
 

public DocumentFragment parse(InputStream is) throws SAXException,
		IOException {
	// Wrap the fragment in an arbitrary element
	ByteArrayOutputStream baos = new ByteArrayOutputStream();
	baos.write("<fragment>".getBytes());

	int b;
	while ((b = is.read()) != -1) {
		baos.write(b);
	}

	baos.write("</fragment>".getBytes());

	// parse
	Document doc = this.docBuilder.parse(new ByteArrayInputStream(baos
			.toByteArray()));

	// // Import the nodes of the new document into doc so that they
	// // will be compatible with doc
	Node node = doc.importNode(doc.getDocumentElement(), true);

	// Create the document fragment node to hold the new nodes
	DocumentFragment docfrag = doc.createDocumentFragment();

	// Move the nodes into the fragment
	while (node.hasChildNodes()) {
		docfrag.appendChild(node.removeChild(node.getFirstChild()));
	}

	// Return the fragment
	return docfrag;
}
 

/**
 * Implemented to replace the content handler currently in use by a 
 * NodeBuilder.
 * 
 * @param namespaceURI the namespace URI of the matching element, or an 
 *   empty string if the parser is not namespace aware or the element has
 *   no namespace
 * @param name the local name if the parser is namespace aware, or just 
 *   the element name otherwise
 * @param attributes The attribute list of this element
 * @throws Exception indicates a JAXP configuration problem
 */
@Override
public void begin(String namespaceURI, String name, Attributes attributes)
    throws Exception {

    XMLReader xmlReader = getDigester().getXMLReader();
    Document doc = documentBuilder.newDocument();
    NodeBuilder builder = null;
    if (nodeType == Node.ELEMENT_NODE) {
        Element element = null;
        if (getDigester().getNamespaceAware()) {
            element =
                doc.createElementNS(namespaceURI, name);
            for (int i = 0; i < attributes.getLength(); i++) {
                element.setAttributeNS(attributes.getURI(i),
                                       attributes.getLocalName(i),
                                       attributes.getValue(i));
            }
        } else {
            element = doc.createElement(name);
            for (int i = 0; i < attributes.getLength(); i++) {
                element.setAttribute(attributes.getQName(i),
                                     attributes.getValue(i));
            }
        }
        builder = new NodeBuilder(doc, element);
    } else {
        builder = new NodeBuilder(doc, doc.createDocumentFragment());
    }
    xmlReader.setContentHandler(builder);

}
 

/**
 * When this method fires, the digester is told to forward all SAX
 * ContentHandler events to the builder object, resulting in a DOM being
 * built instead of normal digester rule-handling occurring. When the
 * end of the current xml element is encountered, the original content 
 * handler is restored (expected to be NULL, allowing normal Digester
 * operations to continue).
 * 
 * @param namespaceURI the namespace URI of the matching element, or an 
 *   empty string if the parser is not namespace aware or the element has
 *   no namespace
 * @param name the local name if the parser is namespace aware, or just 
 *   the element name otherwise
 * @param attributes The attribute list of this element
 * @throws Exception indicates a JAXP configuration problem
 */
@Override
public void begin(String namespaceURI, String name, Attributes attributes)
    throws Exception {

    Document doc = documentBuilder.newDocument();
    NodeBuilder builder = null;
    if (nodeType == Node.ELEMENT_NODE) {
        Element element = null;
        if (getDigester().getNamespaceAware()) {
            element =
                doc.createElementNS(namespaceURI, name);
            for (int i = 0; i < attributes.getLength(); i++) {
                element.setAttributeNS(attributes.getURI(i),
                                       attributes.getQName(i),
                                       attributes.getValue(i));
            }
        } else {
            element = doc.createElement(name);
            for (int i = 0; i < attributes.getLength(); i++) {
                element.setAttribute(attributes.getQName(i),
                                     attributes.getValue(i));
            }
        }
        builder = new NodeBuilder(doc, element);
    } else {
        builder = new NodeBuilder(doc, doc.createDocumentFragment());
    }
    // the NodeBuilder constructor has already saved the original
    // value of the digester's custom content handler (expected to
    // be null, but we save it just in case). So now we just
    // need to tell the digester to forward events to the builder.
    getDigester().setCustomContentHandler(builder);
}
 

public void testAddNamespaceElement() throws Exception {
	String xml = "<a:Box xmlns:a=\"http://example.org/a#\" required=\"true\"><a:widget size=\"10\"> </a:widget><a:grommit id=\"23\"> text </a:grommit></a:Box>";
	Document doc = parse(xml);
	ObjectFactory of = con.getObjectFactory();
	Entity entity = con.addDesignation(of.createObject(), Entity.class);
	DocumentFragment frag = doc.createDocumentFragment();
	frag.appendChild(doc.getDocumentElement());
	entity.setXML(frag);
	RepositoryResult<Statement> resuts = con.getStatements(entity.getResource(), pred, null);
	String label = resuts.next().getObject().stringValue();
	resuts.close();
	assertEquals(xml, label);
}
 

/**
 * @param needsDebugData see {@link DomParser#setNeedsDebugData(boolean)}
 */
AbstractElementStack(Document doc, Namespaces ns, boolean needsDebugData) {
  this.doc = doc;
  this.needsDebugData = needsDebugData;
  this.rootElement = doc.createDocumentFragment();
  this.openNodes.add(new OpenNode(rootElement, ns, null));
}
 

private DocumentFragment createTestDocumentFragment(Document document) {
    DocumentFragment docFragment = document.createDocumentFragment();
    Element elem = document.createElement("dfElement");
    elem.appendChild(document.createTextNode("Text in it"));
    docFragment.appendChild(elem);
    return docFragment;
}
 

/**
 * This method is an extension that implements as a Xalan extension
 * the node-set function also found in xt and saxon.
 * If the argument is a Result Tree Fragment, then <code>nodeset</code>
 * returns a node-set consisting of a single root node as described in
 * section 11.1 of the XSLT 1.0 Recommendation.  If the argument is a
 * node-set, <code>nodeset</code> returns a node-set.  If the argument
 * is a string, number, or boolean, then <code>nodeset</code> returns
 * a node-set consisting of a single root node with a single text node
 * child that is the result of calling the XPath string() function on the
 * passed parameter.  If the argument is anything else, then a node-set
 * is returned consisting of a single root node with a single text node
 * child that is the result of calling the java <code>toString()</code>
 * method on the passed argument.
 * Most of the
 * actual work here is done in <code>MethodResolver</code> and
 * <code>XRTreeFrag</code>.
 * @param myProcessor Context passed by the extension processor
 * @param rtf Argument in the stylesheet to the nodeset extension function
 *
 * NEEDSDOC ($objectName$) @return
 */
public static NodeSet nodeset(ExpressionContext myProcessor, Object rtf)
{

  String textNodeValue;

  if (rtf instanceof NodeIterator)
  {
    return new NodeSet((NodeIterator) rtf);
  }
  else
  {
    if (rtf instanceof String)
    {
      textNodeValue = (String) rtf;
    }
    else if (rtf instanceof Boolean)
    {
      textNodeValue = new XBoolean(((Boolean) rtf).booleanValue()).str();
    }
    else if (rtf instanceof Double)
    {
      textNodeValue = new XNumber(((Double) rtf).doubleValue()).str();
    }
    else
    {
      textNodeValue = rtf.toString();
    }

    // This no longer will work right since the DTM.
    // Document myDoc = myProcessor.getContextNode().getOwnerDocument();
      Document myDoc = JdkXmlUtils.getDOMDocument();

      Text textNode = myDoc.createTextNode(textNodeValue);
      DocumentFragment docFrag = myDoc.createDocumentFragment();

      docFrag.appendChild(textNode);

      return new NodeSet(docFrag);
  }
}
 

/**
 * This method is an extension that implements as a Xalan extension
 * the node-set function also found in xt and saxon.
 * If the argument is a Result Tree Fragment, then <code>nodeset</code>
 * returns a node-set consisting of a single root node as described in
 * section 11.1 of the XSLT 1.0 Recommendation.  If the argument is a
 * node-set, <code>nodeset</code> returns a node-set.  If the argument
 * is a string, number, or boolean, then <code>nodeset</code> returns
 * a node-set consisting of a single root node with a single text node
 * child that is the result of calling the XPath string() function on the
 * passed parameter.  If the argument is anything else, then a node-set
 * is returned consisting of a single root node with a single text node
 * child that is the result of calling the java <code>toString()</code>
 * method on the passed argument.
 * Most of the
 * actual work here is done in <code>MethodResolver</code> and
 * <code>XRTreeFrag</code>.
 * @param myProcessor Context passed by the extension processor
 * @param rtf Argument in the stylesheet to the nodeset extension function
 *
 * NEEDSDOC ($objectName$) @return
 */
public static NodeSet nodeset(ExpressionContext myProcessor, Object rtf)
{

  String textNodeValue;

  if (rtf instanceof NodeIterator)
  {
    return new NodeSet((NodeIterator) rtf);
  }
  else
  {
    if (rtf instanceof String)
    {
      textNodeValue = (String) rtf;
    }
    else if (rtf instanceof Boolean)
    {
      textNodeValue = new XBoolean(((Boolean) rtf).booleanValue()).str();
    }
    else if (rtf instanceof Double)
    {
      textNodeValue = new XNumber(((Double) rtf).doubleValue()).str();
    }
    else
    {
      textNodeValue = rtf.toString();
    }

    // This no longer will work right since the DTM.
    // Document myDoc = myProcessor.getContextNode().getOwnerDocument();
    Document myDoc = getDocument();

      Text textNode = myDoc.createTextNode(textNodeValue);
      DocumentFragment docFrag = myDoc.createDocumentFragment();

      docFrag.appendChild(textNode);

    return new NodeSet(docFrag);
  }
}
 

/**
 * This method is an extension that implements as a Xalan extension
 * the node-set function also found in xt and saxon.
 * If the argument is a Result Tree Fragment, then <code>nodeset</code>
 * returns a node-set consisting of a single root node as described in
 * section 11.1 of the XSLT 1.0 Recommendation.  If the argument is a
 * node-set, <code>nodeset</code> returns a node-set.  If the argument
 * is a string, number, or boolean, then <code>nodeset</code> returns
 * a node-set consisting of a single root node with a single text node
 * child that is the result of calling the XPath string() function on the
 * passed parameter.  If the argument is anything else, then a node-set
 * is returned consisting of a single root node with a single text node
 * child that is the result of calling the java <code>toString()</code>
 * method on the passed argument.
 * Most of the
 * actual work here is done in <code>MethodResolver</code> and
 * <code>XRTreeFrag</code>.
 * @param myProcessor Context passed by the extension processor
 * @param rtf Argument in the stylesheet to the nodeset extension function
 *
 * NEEDSDOC ($objectName$) @return
 */
public static NodeSet nodeset(ExpressionContext myProcessor, Object rtf)
{

  String textNodeValue;

  if (rtf instanceof NodeIterator)
  {
    return new NodeSet((NodeIterator) rtf);
  }
  else
  {
    if (rtf instanceof String)
    {
      textNodeValue = (String) rtf;
    }
    else if (rtf instanceof Boolean)
    {
      textNodeValue = new XBoolean(((Boolean) rtf).booleanValue()).str();
    }
    else if (rtf instanceof Double)
    {
      textNodeValue = new XNumber(((Double) rtf).doubleValue()).str();
    }
    else
    {
      textNodeValue = rtf.toString();
    }

    // This no longer will work right since the DTM.
    // Document myDoc = myProcessor.getContextNode().getOwnerDocument();
    Document myDoc = getDocument();

      Text textNode = myDoc.createTextNode(textNodeValue);
      DocumentFragment docFrag = myDoc.createDocumentFragment();

      docFrag.appendChild(textNode);

    return new NodeSet(docFrag);
  }
}
 

/**
 * This method is an extension that implements as a Xalan extension
 * the node-set function also found in xt and saxon.
 * If the argument is a Result Tree Fragment, then <code>nodeset</code>
 * returns a node-set consisting of a single root node as described in
 * section 11.1 of the XSLT 1.0 Recommendation.  If the argument is a
 * node-set, <code>nodeset</code> returns a node-set.  If the argument
 * is a string, number, or boolean, then <code>nodeset</code> returns
 * a node-set consisting of a single root node with a single text node
 * child that is the result of calling the XPath string() function on the
 * passed parameter.  If the argument is anything else, then a node-set
 * is returned consisting of a single root node with a single text node
 * child that is the result of calling the java <code>toString()</code>
 * method on the passed argument.
 * Most of the
 * actual work here is done in <code>MethodResolver</code> and
 * <code>XRTreeFrag</code>.
 * @param myProcessor Context passed by the extension processor
 * @param rtf Argument in the stylesheet to the nodeset extension function
 *
 * NEEDSDOC ($objectName$) @return
 */
public static NodeSet nodeset(ExpressionContext myProcessor, Object rtf)
{

  String textNodeValue;

  if (rtf instanceof NodeIterator)
  {
    return new NodeSet((NodeIterator) rtf);
  }
  else
  {
    if (rtf instanceof String)
    {
      textNodeValue = (String) rtf;
    }
    else if (rtf instanceof Boolean)
    {
      textNodeValue = new XBoolean(((Boolean) rtf).booleanValue()).str();
    }
    else if (rtf instanceof Double)
    {
      textNodeValue = new XNumber(((Double) rtf).doubleValue()).str();
    }
    else
    {
      textNodeValue = rtf.toString();
    }

    // This no longer will work right since the DTM.
    // Document myDoc = myProcessor.getContextNode().getOwnerDocument();
    Document myDoc = JdkXmlUtils.getDOMDocument();

      Text textNode = myDoc.createTextNode(textNodeValue);
      DocumentFragment docFrag = myDoc.createDocumentFragment();

      docFrag.appendChild(textNode);

    return new NodeSet(docFrag);
  }
}