Example usage for org.w3c.dom NodeList item

Introduction

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

Prototype

public Node item(int index);

Source Link

Document

Returns the indexth item in the collection.

Usage

From source file:Main.java

static String[] getNodeValue(NodeList nodes) {
    String checkIds[] = new String[nodes.getLength()];
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        checkIds[i] = node.getTextContent();
    }//from  w ww .  j  a  v a 2  s . com
    return checkIds;
}

From source file:Main.java

/**
 * Gets the first child element./*w  w  w . jav a  2s. c om*/
 * 
 * @param e the element.
 * @return the first child element.
 */
public static Element getFirstChildElement(Element e) {
    if (e != null) {
        NodeList children = e.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            Node node = children.item(i);
            if (node.getNodeType() == Node.ELEMENT_NODE) {
                return (Element) node;
            }
        }
    }
    return null;
}

From source file:Main.java

/**
 * This method return the first named node with a certain name from a node list
 * //from   w  w w .jav a 2  s. com
 * @param list - Investigated list
 * @param name - The wanted name
 * @return The first node with a certain name from a node list
 */
public static Element getFirstNamedNode(NodeList list, String name) {
    Element result = null;

    for (int i = 0; i < list.getLength(); i++)
        if (list.item(i).getNodeName().equals(name)) {
            result = (Element) list.item(i);
            break;
        }

    return result;
}

From source file:Main.java

public static String getAttribute(String xmlStr, String tagName, String attrName) {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(false); // never forget this!
    Document doc = null;/*w  w w.  j a  v  a2  s. c o  m*/
    DocumentBuilder builder = null;
    String value = null;

    try {
        builder = domFactory.newDocumentBuilder();
        doc = builder.parse(new ByteArrayInputStream(xmlStr.getBytes()));
        // Get the root element
        Node rootNode = doc.getFirstChild();
        NodeList nodeList = doc.getElementsByTagName(tagName);
        if ((nodeList.getLength() == 0) || (nodeList.item(0).getAttributes().getNamedItem(attrName) == null)) {
            logger.error("Either node " + tagName + " or attribute " + attrName + " not found.");
        } else {
            value = nodeList.item(0).getAttributes().getNamedItem(attrName).getNodeValue();
            logger.debug("value of " + tagName + " attribute: " + attrName + " = " + value);
        }
    } catch (Exception ex) {
        System.out.println(ex.getMessage());
    }

    return value;
}

From source file:Main.java

public static Element selectSingleElement(Element parent, String elementName) {
    NodeList list = parent.getElementsByTagName(elementName);

    if (list.getLength() > 0) {
        return (Element) list.item(0);
    }/*from w  ww. ja  v a  2s. c o  m*/

    return null;
}

From source file:Main.java

public static String getSimpleElementText(Element node) {
    if (node == null)
        return null;
    StringBuffer sb = new StringBuffer();
    NodeList children = node.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        Node child = children.item(i);
        if (child instanceof Text) {
            sb.append(child.getNodeValue());
        }// ww w  .ja  v a2  s. c o  m
    }
    return sb.toString();
}

From source file:Main.java

/**
 * Trys to find a child element in the given parent element where the child's
 * name attribute is the given value./*from  ww w.  j a v a 2s  .  c o  m*/
 *
 * @param parent The Element to search in.
 * @param name   The name attribute of the element to search for.
 *
 * @return The Element if found, null otherwise.
 */
public static Element findElementWithNameAttribute(Element parent, String name) {
    NodeList l = parent.getChildNodes();
    for (int i = 0; i < l.getLength(); i++) {
        Node n = l.item(i);
        if (n.getNodeType() == n.ELEMENT_NODE) {
            Element e = (Element) n;
            if (e.getAttribute("name").equals(name)) {
                return e;
            }
        }
    }
    return null;
}

From source file:Main.java

public static List<Element> getChildNodes(Element parent, String name) {
    List<Element> result = new ArrayList<Element>();
    NodeList childNodes = parent.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node n = childNodes.item(i);
        if (name.equals(n.getNodeName())) {
            result.add((Element) n);
        }/*from w  w w  .  j a  v  a 2s.  co  m*/
    }
    return result;
}

From source file:Main.java

public static List<Element> selectElementsByName(Element parent, String elementName) {
    ArrayList<Element> result = new ArrayList<Element>();

    NodeList list = parent.getChildNodes();

    for (int i = 0; i < list.getLength(); i++) {
        Node node = list.item(i);

        if ((node instanceof Element) && node.getNodeName().equals(elementName)) {
            result.add((Element) node);
        }// w w  w  .j  a  va  2  s. co m
    }

    return result;
}

From source file:Main.java

/**
 * Gets the first node with the specified tag name from the given document.
 * If there are multiple nodes with the specified tag name, the first node
 * found will be returned./*from w w w  .jav  a2  s  .  c  o m*/
 * 
 * @param doc
 *            the document
 * @param tagname
 *            the tag name of the node to find.
 * @return the first node found with the specified tag name or
 *         <code>null</code> if no node with that name could be found.
 */
public static Node getNode(Document doc, String tagname) {
    NodeList nl = doc.getElementsByTagName(tagname);
    if (!isEmpty(nl)) {
        return nl.item(0);
    }
    return null;
}