org.w3c.dom.traversal.NodeIterator Java Examples

The following examples show how to use org.w3c.dom.traversal.NodeIterator. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: NodeSet.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  Null references are not added.
 *
 * @param iterator NodeIterator which yields the nodes to be added.
 * @throws RuntimeException thrown if this NodeSet is not of
 * a mutable type.
 */
public void addNodes(NodeIterator iterator)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  if (null != iterator)  // defensive to fix a bug that Sanjiva reported.
  {
    Node obj;

    while (null != (obj = iterator.nextNode()))
    {
      addElement(obj);
    }
  }

  // checkDups();
}
Example #2
Source File: DocumentImpl.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
/**
 * @serialData Serialized fields. Convert Maps to Hashtables and Lists
 * to Vectors for backward compatibility.
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    // Convert Maps to Hashtables, Lists to Vectors
    Vector<NodeIterator> it = (iterators == null)? null : new Vector<>(iterators);
    Vector<Range> r = (ranges == null)? null : new Vector<>(ranges);

    Hashtable<NodeImpl, Vector<LEntry>> el = null;
    if (eventListeners != null) {
        el = new Hashtable<>();
        for (Map.Entry<NodeImpl, List<LEntry>> e : eventListeners.entrySet()) {
             el.put(e.getKey(), new Vector<>(e.getValue()));
        }
    }

    // Write serialized fields
    ObjectOutputStream.PutField pf = out.putFields();
    pf.put("iterators", it);
    pf.put("ranges", r);
    pf.put("eventListeners", el);
    pf.put("mutationEvents", mutationEvents);
    out.writeFields();
}
Example #3
Source File: DomNodeIteratorTest.java    From htmlunit with Apache License 2.0 6 votes vote down vote up 
/**
 * @throws Exception if the test fails
 */
@Test
public void nextNode() throws Exception {
    final String html = "<html><head><script>\n"
            + "function test() {\n"
            + "}\n"
            + "</script></head>\n"
            + "<body onload='test()'>\n"
            + "  <form name='f1'>\n"
            + "    <input>\n"
            + "    <INPUT>\n"
            + "  </form>\n"
            + "</body></html>";

    final WebDriver driver = loadPageWithAlerts2(html);
    if (driver instanceof HtmlUnitDriver) {
        final WebWindow webWindow = getWebWindowOf((HtmlUnitDriver) driver);
        final HtmlPage page = (HtmlPage) webWindow.getEnclosedPage();
        final NodeIterator iterator = page.createNodeIterator(page.getDocumentElement(), NodeFilter.SHOW_ALL, null,
                true);
        assertThat(iterator.nextNode(), instanceOf(HtmlHtml.class));
    }
}
Example #4
Source File: DocumentImpl.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Create and return a NodeIterator. The NodeIterator is
 * added to a list of NodeIterators so that it can be
 * removed to free up the DOM Nodes it references.
 *
 * @param root The root of the iterator.
 * @param whatToShow The whatToShow mask.
 * @param filter The NodeFilter installed. Null means no filter.
 * @param entityReferenceExpansion true to expand the contents of
 *                                 EntityReference nodes
 * @since WD-DOM-Level-2-19990923
 */
public NodeIterator createNodeIterator(Node root,
                                       int whatToShow,
                                       NodeFilter filter,
                                       boolean entityReferenceExpansion)
{

    if (root == null) {
              String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NOT_SUPPORTED_ERR", null);
              throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
    }

    NodeIterator iterator = new NodeIteratorImpl(this,
                                                 root,
                                                 whatToShow,
                                                 filter,
                                                 entityReferenceExpansion);
    if (iterators == null) {
        iterators = new ArrayList<>();
    }

    iterators.add(iterator);

    return iterator;
}
Example #5
Source File: NodeSet.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  Null references are not added.
 *
 * @param iterator NodeIterator which yields the nodes to be added.
 * @throws RuntimeException thrown if this NodeSet is not of
 * a mutable type.
 */
public void addNodes(NodeIterator iterator)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  if (null != iterator)  // defensive to fix a bug that Sanjiva reported.
  {
    Node obj;

    while (null != (obj = iterator.nextNode()))
    {
      addElement(obj);
    }
  }

  // checkDups();
}
Example #6
Source File: DocumentImpl.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * @serialData Serialized fields. Convert Maps to Hashtables and Lists
 * to Vectors for backward compatibility.
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    // Convert Maps to Hashtables, Lists to Vectors
    Vector<NodeIterator> it = (iterators == null)? null : new Vector<>(iterators);
    Vector<Range> r = (ranges == null)? null : new Vector<>(ranges);

    Hashtable<NodeImpl, Vector<LEntry>> el = null;
    if (eventListeners != null) {
        el = new Hashtable<>();
        for (Map.Entry<NodeImpl, List<LEntry>> e : eventListeners.entrySet()) {
             el.put(e.getKey(), new Vector<>(e.getValue()));
        }
    }

    // Write serialized fields
    ObjectOutputStream.PutField pf = out.putFields();
    pf.put("iterators", it);
    pf.put("ranges", r);
    pf.put("eventListeners", el);
    pf.put("mutationEvents", mutationEvents);
    out.writeFields();
}
Example #7
Source File: DocumentImpl.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
@SuppressWarnings("unchecked")
private void readObject(ObjectInputStream in)
                    throws IOException, ClassNotFoundException {
    // We have to read serialized fields first.
    ObjectInputStream.GetField gf = in.readFields();
    Vector<NodeIterator> it = (Vector<NodeIterator>)gf.get("iterators", null);
    Vector<Range> r = (Vector<Range>)gf.get("ranges", null);
    Hashtable<NodeImpl, Vector<LEntry>> el =
            (Hashtable<NodeImpl, Vector<LEntry>>)gf.get("eventListeners", null);

    mutationEvents = gf.get("mutationEvents", false);

    //convert Hashtables back to HashMaps and Vectors to Lists
    if (it != null) iterators = new ArrayList<>(it);
    if (r != null) ranges = new ArrayList<>(r);
    if (el != null) {
        eventListeners = new HashMap<>();
        for (Map.Entry<NodeImpl, Vector<LEntry>> e : el.entrySet()) {
             eventListeners.put(e.getKey(), new ArrayList<>(e.getValue()));
        }
    }
}
Example #8
Source File: DocumentImpl.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
/**
 * @serialData Serialized fields. Convert Maps to Hashtables and Lists
 * to Vectors for backward compatibility.
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    // Convert Maps to Hashtables, Lists to Vectors
    Vector<NodeIterator> it = (iterators == null)? null : new Vector<>(iterators);
    Vector<Range> r = (ranges == null)? null : new Vector<>(ranges);

    Hashtable<NodeImpl, Vector<LEntry>> el = null;
    if (eventListeners != null) {
        el = new Hashtable<>();
        for (Map.Entry<NodeImpl, List<LEntry>> e : eventListeners.entrySet()) {
             el.put(e.getKey(), new Vector<>(e.getValue()));
        }
    }

    // Write serialized fields
    ObjectOutputStream.PutField pf = out.putFields();
    pf.put("iterators", it);
    pf.put("ranges", r);
    pf.put("eventListeners", el);
    pf.put("mutationEvents", mutationEvents);
    out.writeFields();
}
Example #9
Source File: DocumentImpl.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
@SuppressWarnings("unchecked")
private void readObject(ObjectInputStream in)
                    throws IOException, ClassNotFoundException {
    // We have to read serialized fields first.
    ObjectInputStream.GetField gf = in.readFields();
    Vector<NodeIterator> it = (Vector<NodeIterator>)gf.get("iterators", null);
    Vector<Range> r = (Vector<Range>)gf.get("ranges", null);
    Hashtable<NodeImpl, Vector<LEntry>> el =
            (Hashtable<NodeImpl, Vector<LEntry>>)gf.get("eventListeners", null);

    mutationEvents = gf.get("mutationEvents", false);

    //convert Hashtables back to HashMaps and Vectors to Lists
    if (it != null) iterators = new ArrayList<>(it);
    if (r != null) ranges = new ArrayList<>(r);
    if (el != null) {
        eventListeners = new HashMap<>();
        for (Map.Entry<NodeImpl, Vector<LEntry>> e : el.entrySet()) {
             eventListeners.put(e.getKey(), new ArrayList<>(e.getValue()));
        }
    }
}
Example #10
Source File: DocumentImpl.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
/**
 * Create and return a NodeIterator. The NodeIterator is
 * added to a list of NodeIterators so that it can be
 * removed to free up the DOM Nodes it references.
 *
 * @param root The root of the iterator.
 * @param whatToShow The whatToShow mask.
 * @param filter The NodeFilter installed. Null means no filter.
 * @param entityReferenceExpansion true to expand the contents of
 *                                 EntityReference nodes
 * @since WD-DOM-Level-2-19990923
 */
public NodeIterator createNodeIterator(Node root,
                                       int whatToShow,
                                       NodeFilter filter,
                                       boolean entityReferenceExpansion)
{

    if (root == null) {
              String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NOT_SUPPORTED_ERR", null);
              throw new DOMException(DOMException.NOT_SUPPORTED_ERR, msg);
    }

    NodeIterator iterator = new NodeIteratorImpl(this,
                                                 root,
                                                 whatToShow,
                                                 filter,
                                                 entityReferenceExpansion);
    if (iterators == null) {
        iterators = new ArrayList<>();
    }

    iterators.add(iterator);

    return iterator;
}
Example #11
Source File: XPathAPI.java    From JDKSourceCode1.8 with MIT License 5 votes vote down vote up 
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public static NodeIterator selectNodeIterator(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Have the XObject return its result as a NodeSetDTM.
  return list.nodeset();
}
Example #12
Source File: XPathAPI.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public static NodeIterator selectNodeIterator(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Have the XObject return its result as a NodeSetDTM.
  return list.nodeset();
}
Example #13
Source File: NodeSet.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  If a node is null, don't add it.
 *
 * @param iterator NodeIterator which yields the nodes to be added.
 * @param support The XPath runtime context.
 * @throws RuntimeException thrown if this NodeSet is not of
 * a mutable type.
 */
public void addNodesInDocOrder(NodeIterator iterator, XPathContext support)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  Node node;

  while (null != (node = iterator.nextNode()))
  {
    addNodeInDocOrder(node, support);
  }
}
Example #14
Source File: XPathExpressionImpl.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
private Object getResultAsType( XObject resultObject, QName returnType )
    throws javax.xml.transform.TransformerException {
    // XPathConstants.STRING
    if ( returnType.equals( XPathConstants.STRING ) ) {
        return resultObject.str();
    }
    // XPathConstants.NUMBER
    if ( returnType.equals( XPathConstants.NUMBER ) ) {
        return new Double ( resultObject.num());
    }
    // XPathConstants.BOOLEAN
    if ( returnType.equals( XPathConstants.BOOLEAN ) ) {
        return new Boolean( resultObject.bool());
    }
    // XPathConstants.NODESET ---ORdered, UNOrdered???
    if ( returnType.equals( XPathConstants.NODESET ) ) {
        return resultObject.nodelist();
    }
    // XPathConstants.NODE
    if ( returnType.equals( XPathConstants.NODE ) ) {
        NodeIterator ni = resultObject.nodeset();
        //Return the first node, or null
        return ni.nextNode();
    }
    // If isSupported check is already done then the execution path
    // shouldn't come here. Being defensive
    String fmsg = XSLMessages.createXPATHMessage(
            XPATHErrorResources.ER_UNSUPPORTED_RETURN_TYPE,
            new Object[] { returnType.toString()});
    throw new IllegalArgumentException ( fmsg );
}
Example #15
Source File: NodeSet.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Create a NodeSet, and copy the members of the
 * given NodeIterator into it.
 *
 * @param ni Iterator which yields Nodes to be made members of the new set.
 */
public NodeSet(NodeIterator ni)
{

  this(32);

  addNodes(ni);
}
Example #16
Source File: NodeSetDTM.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Create a NodeSetDTM, and copy the members of the
 * given DTMIterator into it.
 *
 * @param iterator Iterator which yields Nodes to be made members of the new set.
 */
public NodeSetDTM(NodeIterator iterator, XPathContext xctxt)
{

  super();

  Node node;
  m_manager = xctxt.getDTMManager();

  while (null != (node = iterator.nextNode()))
  {
    int handle = xctxt.getDTMHandleFromNode(node);
    addNodeInDocOrder(handle, xctxt);
  }
}
Example #17
Source File: NodeSet.java    From JDKSourceCode1.8 with MIT License 5 votes vote down vote up 
/**
 * Create a NodeSet, and copy the members of the
 * given NodeSet into it.
 *
 * @param nodelist Set of Nodes to be made members of the new set.
 */
public NodeSet(NodeSet nodelist)
{

  this(32);

  addNodes((NodeIterator) nodelist);
}
Example #18
Source File: XObject.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Cast result object to a nodelist. Always issues an error.
 *
 * @return null
 *
 * @throws javax.xml.transform.TransformerException
 */
public NodeIterator nodeset() throws javax.xml.transform.TransformerException
{

  error(XPATHErrorResources.ER_CANT_CONVERT_TO_NODELIST,
        new Object[]{ getTypeString() });  //"Can not convert "+getTypeString()+" to a NodeList!");

  return null;
}
Example #19
Source File: XPathResultImpl.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
         * The value of this single node result, which may be <code>null</code>.
     * @exception XPathException
     *   TYPE_ERR: raised if <code>resultType</code> is not
     *   <code>ANY_UNORDERED_NODE_TYPE</code> or
     *   <code>FIRST_ORDERED_NODE_TYPE</code>.
     *
         * @see org.w3c.dom.xpath.XPathResult#getSingleNodeValue()
         */
        public Node getSingleNodeValue() throws XPathException {

                if ((m_resultType != ANY_UNORDERED_NODE_TYPE) &&
                    (m_resultType != FIRST_ORDERED_NODE_TYPE)) {
                                String fmsg = XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_CANT_CONVERT_TO_SINGLENODE, new Object[] {m_xpath.getPatternString(), getTypeString(m_resultType)});
                                throw new XPathException(XPathException.TYPE_ERR,fmsg);
//                              "The XPathResult of XPath expression {0} has an XPathResultType of {1} which cannot be converted to a single node.
//                               This method applies only to types ANY_UNORDERED_NODE_TYPE and FIRST_ORDERED_NODE_TYPE."
            }

                NodeIterator result = null;
                try {
                        result = m_resultObj.nodeset();
                } catch (TransformerException te) {
                        throw new XPathException(XPathException.TYPE_ERR,te.getMessage());
                }

        if (null == result) return null;

        Node node = result.nextNode();

        // Wrap "namespace node" in an XPathNamespace
        if (isNamespaceNode(node)) {
            return new XPathNamespaceImpl(node);
        } else {
            return node;
        }
        }
Example #20
Source File: XPathExpressionImpl.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
private Object getResultAsType( XObject resultObject, QName returnType )
    throws javax.xml.transform.TransformerException {
    // XPathConstants.STRING
    if ( returnType.equals( XPathConstants.STRING ) ) {
        return resultObject.str();
    }
    // XPathConstants.NUMBER
    if ( returnType.equals( XPathConstants.NUMBER ) ) {
        return new Double ( resultObject.num());
    }
    // XPathConstants.BOOLEAN
    if ( returnType.equals( XPathConstants.BOOLEAN ) ) {
        return new Boolean( resultObject.bool());
    }
    // XPathConstants.NODESET ---ORdered, UNOrdered???
    if ( returnType.equals( XPathConstants.NODESET ) ) {
        return resultObject.nodelist();
    }
    // XPathConstants.NODE
    if ( returnType.equals( XPathConstants.NODE ) ) {
        NodeIterator ni = resultObject.nodeset();
        //Return the first node, or null
        return ni.nextNode();
    }
    // If isSupported check is already done then the execution path
    // shouldn't come here. Being defensive
    String fmsg = XSLMessages.createXPATHMessage(
            XPATHErrorResources.ER_UNSUPPORTED_RETURN_TYPE,
            new Object[] { returnType.toString()});
    throw new IllegalArgumentException ( fmsg );
}
Example #21
Source File: NodeSet.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  If a node is null, don't add it.
 *
 * @param iterator NodeIterator which yields the nodes to be added.
 * @param support The XPath runtime context.
 * @throws RuntimeException thrown if this NodeSet is not of
 * a mutable type.
 */
public void addNodesInDocOrder(NodeIterator iterator, XPathContext support)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  Node node;

  while (null != (node = iterator.nextNode()))
  {
    addNodeInDocOrder(node, support);
  }
}
Example #22
Source File: XPathAPI.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Use an XPath string to select a single node.
 * XPath namespace prefixes are resolved from the namespaceNode.
 *
 * @param contextNode The node to start searching from.
 * @param str A valid XPath string.
 * @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 * @return The first node found that matches the XPath, or null.
 *
 * @throws TransformerException
 */
public static Node selectSingleNode(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Have the XObject return its result as a NodeSetDTM.
  NodeIterator nl = selectNodeIterator(contextNode, str, namespaceNode);

  // Return the first node, or null
  return nl.nextNode();
}
Example #23
Source File: NodeSet.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  Null references are not added.
 *
 * @param iterator NodeIterator which yields the nodes to be added.
 * @throws RuntimeException thrown if this NodeSet is not of
 * a mutable type.
 */
public void addNodes(NodeIterator iterator)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  if (null != iterator)  // defensive to fix a bug that Sanjiva reported.
  {
    Node obj;

    while (null != (obj = iterator.nextNode()))
    {
      addElement(obj);
    }
  }

  // checkDups();
}
Example #24
Source File: DocumentImpl.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/** This is not called by the developer client. The
 *  developer client uses the detach() function on the
 *  NodeIterator itself. <p>
 *
 *  This function is called from the NodeIterator#detach().
 */
 void removeNodeIterator(NodeIterator nodeIterator) {

    if (nodeIterator == null) return;
    if (iterators == null) return;

    iterators.remove(nodeIterator);
}
Example #25
Source File: NodeSet.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Create a NodeSet, and copy the members of the
 * given NodeIterator into it.
 *
 * @param ni Iterator which yields Nodes to be made members of the new set.
 */
public NodeSet(NodeIterator ni)
{

  this(32);

  addNodes(ni);
}
Example #26
Source File: NodeSet.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Create a NodeSet, and copy the members of the
 * given NodeSet into it.
 *
 * @param nodelist Set of Nodes to be made members of the new set.
 */
public NodeSet(NodeSet nodelist)
{

  this(32);

  addNodes((NodeIterator) nodelist);
}
Example #27
Source File: NodeSet.java    From JDKSourceCode1.8 with MIT License 5 votes vote down vote up 
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  If a node is null, don't add it.
 *
 * @param iterator NodeIterator which yields the nodes to be added.
 * @param support The XPath runtime context.
 * @throws RuntimeException thrown if this NodeSet is not of
 * a mutable type.
 */
public void addNodesInDocOrder(NodeIterator iterator, XPathContext support)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  Node node;

  while (null != (node = iterator.nextNode()))
  {
    addNodeInDocOrder(node, support);
  }
}
Example #28
Source File: XPathAPI.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public static NodeIterator selectNodeIterator(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Have the XObject return its result as a NodeSetDTM.
  return list.nodeset();
}
Example #29
Source File: XPathExpressionImpl.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
private Object getResultAsType( XObject resultObject, QName returnType )
    throws javax.xml.transform.TransformerException {
    // XPathConstants.STRING
    if ( returnType.equals( XPathConstants.STRING ) ) {
        return resultObject.str();
    }
    // XPathConstants.NUMBER
    if ( returnType.equals( XPathConstants.NUMBER ) ) {
        return new Double ( resultObject.num());
    }
    // XPathConstants.BOOLEAN
    if ( returnType.equals( XPathConstants.BOOLEAN ) ) {
        return new Boolean( resultObject.bool());
    }
    // XPathConstants.NODESET ---ORdered, UNOrdered???
    if ( returnType.equals( XPathConstants.NODESET ) ) {
        return resultObject.nodelist();
    }
    // XPathConstants.NODE
    if ( returnType.equals( XPathConstants.NODE ) ) {
        NodeIterator ni = resultObject.nodeset();
        //Return the first node, or null
        return ni.nextNode();
    }
    // If isSupported check is already done then the execution path
    // shouldn't come here. Being defensive
    String fmsg = XSLMessages.createXPATHMessage(
            XPATHErrorResources.ER_UNSUPPORTED_RETURN_TYPE,
            new Object[] { returnType.toString()});
    throw new IllegalArgumentException ( fmsg );
}
Example #30
Source File: CachedXPathAPI.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public  NodeIterator selectNodeIterator(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Have the XObject return its result as a NodeSetDTM.
  return list.nodeset();
}