Example usage for org.w3c.dom Element getChildNodes

Introduction

In this page you can find the example usage for org.w3c.dom Element getChildNodes.

Prototype

public NodeList getChildNodes();

Source Link

Document

A NodeList that contains all children of this node.

Usage

From source file:Main.java

public static String getNodeAttributeByName(String xmlFilePath, String nodeName, String attributeName) {
    String returnVal = "No value!";
    DocumentBuilderFactory domBuilderFactory = DocumentBuilderFactory.newInstance();
    try {/*w ww.j av  a  2s. c  o m*/

        DocumentBuilder domBuilder = domBuilderFactory.newDocumentBuilder();
        InputStream is = new FileInputStream(xmlFilePath);
        Document doc = domBuilder.parse(is);
        Element root = doc.getDocumentElement();
        NodeList nodes = root.getChildNodes();
        if (nodes != null) {
            for (int i = 0; i < nodes.getLength(); i++) {
                Node node = nodes.item(i);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    String test = node.getNodeName();
                    if (test.equals(nodeName)) {
                        returnVal = node.getAttributes().getNamedItem(attributeName).getNodeValue();
                    }
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return returnVal;
}

From source file:Main.java

public static Element getFirstChild(Element paramElement, String paramString) {
    NodeList localNodeList = paramElement.getChildNodes();
    for (int i = 0; i < localNodeList.getLength(); i++) {
        Node localNode = localNodeList.item(i);
        if ((localNode != null) && (localNode.getNodeType() == 1)
                && (((Element) localNode).getTagName().equals(paramString)))
            return (Element) localNode;
    }//from  w w  w  .  j  av a 2s  . c  om
    return null;
}

From source file:Main.java

/**
 * Returns the boolean value of the text content for the child element with the specified name
 * for the specified element./*from  ww w .  ja va2 s  .c  om*/
 *
 * @param element the parent element
 * @param name    the name of the child element to return
 *
 * @return the boolean value of the text content for the child element or <code>null</code> if a
 *         child element with the specified name could not be found
 */
public static Boolean getChildElementBoolean(Element element, String name) {
    NodeList nodeList = element.getChildNodes();

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

        if (node instanceof Element) {
            Element childElement = (Element) node;

            if (childElement.getNodeName().equals(name)) {
                try {
                    return Boolean.parseBoolean(childElement.getTextContent());
                } catch (Throwable e) {
                    throw new RuntimeException("Failed to parse the invalid boolean value ("
                            + childElement.getTextContent() + ")");
                }
            }
        }
    }

    return null;
}

From source file:Main.java

public static List<Element> getChildElements(Element element) {
    List<Element> result = new ArrayList<Element>();
    NodeList childNodes = element.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        if (childNodes.item(i) instanceof Element) {
            result.add((Element) childNodes.item(i));
        }/* ww  w.  j a v a  2s.  c  o m*/
    }
    return result;
}

From source file:Main.java

protected static Element getChildElement(Element element, String tagName) {
    NodeList childNodes = element.getChildNodes();
    int numChildren = childNodes.getLength();

    for (int i = 0; i < numChildren; i++) {
        Node childNode = childNodes.item(i);
        if (childNode.getNodeType() != Node.ELEMENT_NODE) {
            continue;
        }/*from  w  w w . j a  va  2  s.c o  m*/
        Element childElement = (Element) childNode;

        if (tagName != null) {
            String childTagName = childElement.getTagName();
            if (!childTagName.equals(tagName)) {
                continue;
            }
        }
        return childElement;
    }
    return null;
}

From source file:Main.java

public static Element getChildByTagName(Element element, String tagName) {
    Element result = null;/*from ww  w.  ja  va  2  s . c o  m*/
    NodeList childNodes = element.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node n = childNodes.item(i);
        if (!(n instanceof Element)) {
            continue;
        }
        if (((Element) n).getTagName().equals(tagName)) {
            if (result != null) {
                throw new RuntimeException("Too many elements with tag name " + tagName);
            }
            result = (Element) n;
        }
    }
    return result;
}

From source file:Main.java

/**
 * Delete children elements for Element by element name
 *//*from  w  w w  . ja v a  2s.c o m*/
public static void removeAllChildren(Element node, String elementName) {
    if (node != null) {
        NodeList nl = node.getChildNodes();
        int len = nl.getLength();
        for (int i = 0; i < len; i++) {
            Node childNode = nl.item(i);
            if (childNode != null && childNode.getLocalName() != null
                    && childNode.getLocalName().equals(elementName))
                node.removeChild(childNode);
        }
    }
}

From source file:Main.java

public static String getTextValue(Element valueEle) {

    StringBuffer value = new StringBuffer();
    NodeList nl = valueEle.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node item = nl.item(i);/*  ww  w . j a v a 2  s. com*/
        if ((item instanceof CharacterData && !(item instanceof Comment)) || item instanceof EntityReference) {
            value.append(item.getNodeValue());
        }
    }
    return value.toString().trim();
}

From source file:Main.java

/**
 * Gets the immediately child elements list from the parent element.
 * // www  .  j  a  v a2  s . c  o m
 * @param parent the parent element in the element tree
 * @return the NOT NULL immediately child elements list
 */
public static List<Element> getChildElements(Element parent) {
    NodeList nodes = parent.getChildNodes();
    List<Element> elements = new ArrayList<Element>();

    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node instanceof Element && node.getParentNode() == parent) {
            elements.add((Element) node);
        }
    }

    return elements;
}

From source file:Main.java

/**
 * Get the first child element of the specified element, null if it has no child elements.
 * /* w ww  . ja  v  a 2  s.  com*/
 * @param root The element to search.
 * @return The first child element, null if it has none.
 */
public static Element getFirstChild(Element root) {
    if (root == null)
        return null;
    NodeList lst = root.getChildNodes();
    final int n = lst.getLength();
    for (int i = 0; i < n; i++) {
        Node node = lst.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE)
            return (Element) node;
    }
    return null;
}