Example usage for org.w3c.dom NodeList getLength

Introduction

In this page you can find the example usage for org.w3c.dom NodeList getLength.

Prototype

public int getLength();

Source Link

Document

The number of nodes in the list.

Usage

From source file:Main.java

public static List<Node> getChildNodeList(Node parentNode, String nodeName) {
    List<Node> childNodeList = new ArrayList<>();
    NodeList nodeList = parentNode.getChildNodes();
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node childNode = nodeList.item(i);
        if (childNode.getNodeType() == Node.ELEMENT_NODE) {
            if (((Element) childNode).getNodeName().equals(nodeName)) {
                childNodeList.add(childNode);
            }// w  w  w  . j ava2 s.  c  o  m
        }
    }
    return childNodeList;
}

From source file:Main.java

/**
 * Prints out the DOM tree.//from  w  w  w  . j a va  2 s  .c  o  m
 * 
 * @param n
 *            the parent node to start printing from
 * @param prefix
 *            string to append to output, should not be null
 */
public static void printDom(Node n, String prefix, StringBuilder sb) {
    String outString = prefix;
    if (n.getNodeType() == Node.TEXT_NODE) {
        outString += "'" + n.getTextContent().trim() + "'";
    } else {
        outString += n.getNodeName();
    }
    sb.append(outString);
    sb.append("\n");
    NodeList children = n.getChildNodes();
    int length = children.getLength();
    for (int i = 0; i < length; i++) {
        printDom(children.item(i), prefix + "  ", sb);
    }
}

From source file:Main.java

public static int getSizeNS(Element el, String nameSpaceURI, String tagName) {
    NodeList list = el.getElementsByTagNameNS(nameSpaceURI, tagName);
    return list.getLength();
}

From source file:Main.java

/**
 * Get the value of the attribute with the given name of the first tag found with the given tag name in the given
 * document<br/>./* www. java  2s.  c  o m*/
 *
 * @param doc
 * @param tagName
 * @param attributeName
 * @return the value of the attribute with the given name of the node or the empty string, if no node with this name
 * exits in this document or the attribute does not exist
 */
public static String getTagAttributeValue(Document doc, String tagName, String attributeName) {
    NodeList tagList = doc.getElementsByTagName(tagName);
    if (tagList.getLength() > 0) {
        NamedNodeMap attributes = tagList.item(0).getAttributes();
        if (attributes != null) {
            Node attribute = attributes.getNamedItem(attributeName);
            if (attribute != null) {
                return attribute.getNodeValue().trim();
            }
        }
    }
    return "";
}

From source file:Main.java

/**
 * Extracts the text from the given element.
 * Element.getTextContet() is java5 specific, so we need to use this until we drop 1.4 support.
 *///w  w  w .j  av a 2s .c om
public static String getTextContent(Node element) {
    StringBuffer text = new StringBuffer();
    NodeList childNodes = element.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node child = childNodes.item(i);
        if (child instanceof Text) {
            text.append(child.getNodeValue());
        }
    }

    return text.toString();
}

From source file:Main.java

public static String getNodesText(NodeList nodes) {
    StringBuffer ret = new StringBuffer();
    for (int i = 0, l = nodes.getLength(); i < l; i++) {
        ret.append(nodes.item(i).getTextContent());
    }/* w w w .  j a va2s  .c om*/
    return ret.toString();
}

From source file:Main.java

public static String getChildNodeText(Node root, String childName) {
    NodeList nodeList = root.getChildNodes();

    for (int i = 0; i < nodeList.getLength(); i++) {
        if (childName.equals(nodeList.item(i).getNodeName()))
            return nodeList.item(i).getTextContent();
    }//from w  w  w  . j a v  a2s . c o m
    return "";
}

From source file:Main.java

public static Element getElement(Element parentElement, String nodeName) {
    NodeList list = parentElement.getElementsByTagName(nodeName);
    if (list == null || list.getLength() == 0) {
        return null;
    }/*from  w  w  w. j ava 2s  .c om*/
    return (Element) list.item(0);
}

From source file:Main.java

/**
 * Check if the given Element contains child nodes that match with the given
 * child name.// w  w  w . j  a  v  a  2s. c  o  m
 * 
 * @param element
 * @param name The name of the child tag to match on. The special value "*"
 *        matches all tags.
 * @return
 */
public static boolean hasChildNodes(Element element, String name) {
    NodeList elements = element.getElementsByTagName(name);
    return elements.getLength() > 0;
}

From source file:Main.java

public static Node getChildNode(Node parentNode, String nodeName) {
    Node node = null;//from w w w  .  j  av  a 2  s  .co  m
    NodeList nodeList = parentNode.getChildNodes();
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node childNode = nodeList.item(i);
        if (childNode.getNodeType() == Node.ELEMENT_NODE) {
            if (((Element) childNode).getNodeName().equals(nodeName)) {
                node = childNode;
                break;
            }
        }
    }
    return node;
}