Examples of org.apache.nutch.util.NodeWalker.nextNode()

org.apache.nutch.util.NodeWalker.nextNode()

Returns the next Node on the stack and pushes all of its children onto the stack, allowing us to walk the node tree without the use of recursion. If there are no more nodes on the stack then null is returned.
@return Node The next Node on the stack or null if thereisn't a next node.


    NodeWalker walker = new NodeWalker(node);
    
    while (walker.hasNext()) {
  
      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();
      
      // is this node a BASE tag?
      if (nodeType == Node.ELEMENT_NODE) {

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                                       Node node) {
    
    NodeWalker walker = new NodeWalker(node);
    while (walker.hasNext()) {
      
      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();      
      NodeList children = currentNode.getChildNodes();
      int childLen = (children != null) ? children.getLength() : 0;

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            getText(linkText, currentNode, true);
            if (linkText.toString().trim().length() == 0) {
              // try harder - use img alt if present
              NodeWalker subWalker = new NodeWalker(currentNode);
              while (subWalker.hasNext()) {
                Node subNode = subWalker.nextNode();
                if (subNode.getNodeType() == Node.ELEMENT_NODE) {
                  if (subNode.getNodeName().toLowerCase().equals("img")) {
                    NamedNodeMap subAttrs = subNode.getAttributes();
                    Node alt = subAttrs.getNamedItem("alt");
                    if (alt != null) {

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   */
  protected String getElement(String element) {
    NodeWalker walker = new NodeWalker(doc);


    while (walker.hasNext()) {
      Node currentNode = walker.nextNode();


      if (currentNode.getNodeType() == Node.ELEMENT_NODE) {
        if (element.equalsIgnoreCase(currentNode.getNodeName())) {
          return getNodeValue(currentNode);
        }

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    void parse(Node node) {


      NodeWalker walker = new NodeWalker(node);
      while (walker.hasNext()) {


        Node currentNode = walker.nextNode();
        String nodeName = currentNode.getNodeName();
        short nodeType = currentNode.getNodeType();


        if (nodeType == Node.ELEMENT_NODE) {

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    boolean abort = false;
    NodeWalker walker = new NodeWalker(node);
    
    while (walker.hasNext()) {
    
      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();
      
      if ("script".equalsIgnoreCase(nodeName)) {
        walker.skipChildren();

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    boolean abort = false;
    NodeWalker walker = new NodeWalker(node);
    
    while (walker.hasNext()) {
    
      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();
      
      if ("script".equalsIgnoreCase(nodeName)) {
        walker.skipChildren();

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    NodeWalker walker = new NodeWalker(node);
    
    while (walker.hasNext()) {
  
      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();
      
      if ("body".equalsIgnoreCase(nodeName)) { // stop after HEAD
        return false;

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    NodeWalker walker = new NodeWalker(node);
    
    while (walker.hasNext()) {
  
      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();
      
      // is this node a BASE tag?
      if (nodeType == Node.ELEMENT_NODE) {

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                                       Node node) {
    
    NodeWalker walker = new NodeWalker(node);
    while (walker.hasNext()) {
      
      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();      
      NodeList children = currentNode.getChildNodes();
      int childLen = (children != null) ? children.getLength() : 0;

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