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 List<Element> findElementsByAttribute(Element node, String tagName, String attrName,
        List<String> attrValues) {
    List<Element> result = new LinkedList<Element>();
    NodeList nodeList = node.getChildNodes();
    if (nodeList == null) {
        return result;
    }/* www.jav a 2 s  .c o  m*/
    for (int i = 0; i < nodeList.getLength(); ++i) {
        Element element = checkIfElement(nodeList.item(i), tagName);
        if (element != null) {
            for (String value : attrValues) {
                if (element.getAttribute(attrName).equals(value)) {
                    result.add(element);
                    break;
                }
            }
        }
    }
    return result;
}

From source file:Main.java

public static List<Element> elements(final Element element, final String tagName) {
    List<Element> elements = null;
    final NodeList nodeList = element.getChildNodes();
    if (nodeList != null) {
        for (int i = 0; i < nodeList.getLength(); i++) {
            final Node child = nodeList.item(i);
            if (Element.class.isAssignableFrom(child.getClass())) {
                final Element childElement = (Element) child;
                final String childTagName = getTagLocalName(childElement);
                if (childTagName.equals(tagName)) {
                    if (elements == null) {
                        elements = new ArrayList<Element>();
                    }// w  w  w .  j av a 2  s  . co m
                    elements.add(childElement);
                }
            }
        }
    }
    return elements;
}

From source file:Main.java

private static void addAllElementsWithAttrId(final List<Element> list, final Element element,
        final String namespace) {
    if (elementHasId(element, namespace)) {
        list.add(element);/* w w w  . j a v a 2 s  .c o m*/
    }

    NodeList children = element.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        Node child = children.item(i);
        if (child instanceof Element == false) {
            continue;
        }

        Element childElement = (Element) child;
        if (elementHasId(childElement, namespace)) {
            list.add(childElement);
        }

        addAllElementsWithAttrId(list, childElement, namespace);
    }
}

From source file:Main.java

/**
 * Method getChildTags. Get all direct children of given element which
 * match the given tag./*from w w w  .j  a v  a  2 s . c o m*/
 * This method only looks at the direct children of the given node, and
 * doesn't descent deeper into the tree. If a '*' is passed as tag,
 * all elements are returned.
 *
 * @param el            Element where to get children from
 * @param tag           Tag to match. Use '*' to match all tags.
 * @return Collection  Collection containing all elements found. If
 *                      size() returns 0, then no matching elements
 *                      were found. All items in the collection can
 *                      be safely cast to type
 *                      <code>org.w3c.dom.Element</code>.
 */
public static Collection<Node> getChildTags(Element el, String tag) {
    Collection<Node> c;
    NodeList nl;
    int len;
    boolean allChildren;

    c = new LinkedList<Node>();
    nl = el.getChildNodes();
    len = nl.getLength();

    if ("*".equals(tag)) {
        allChildren = true;
    } else {
        allChildren = false;
    }

    for (int i = 0; i < len; i++) {
        Node n = nl.item(i);
        if (n instanceof Element) {
            Element e = (Element) n;
            if (allChildren || e.getTagName().equals(tag)) {
                c.add(n);
            }
        }
    }

    return c;
}

From source file:Main.java

/**
 * Method getFirstChildTag. Return the first child-node which is an element
 * with tagName equal to given tag./*from   www.j  av a2 s.c om*/
 * This method only looks at the direct children of the given node, and
 * doesn't descent deeper into the tree.
 *
 * @param el       Element where to get children from
 * @param tag      Tag to match
 * @return Element The element found, or <code>null</code> if no match
 *                  found.
 */
static public Element getFirstChildTag(Element el, String tag) {
    NodeList nl;
    int len;

    nl = el.getChildNodes();
    len = nl.getLength();
    for (int i = 0; i < len; ++i) {
        Node n = nl.item(i);
        if (n instanceof Element) {
            Element elem = (Element) n;
            if (elem.getTagName().equals(tag)) {
                return elem;
            }
        }
    }
    return null;
}

From source file:Main.java

/**
 * Access an immediate child element inside the given Element
 *
 * @param element the starting element, cannot be null.
 * @param namespaceURI name space of the child element to look for,
 * cannot be null. Use "*" to match all namespaces.
 * @param elemName the name of the child element to look for, cannot be
 * null./*from w w  w.  j  a v  a2 s  .com*/
 * @return the first immediate child element inside element, or
 * <code>null</code> if the child element is not found.
 */
public static Element getChildElement(Element element, String namespaceURI, String elemName) {
    NodeList list = element.getChildNodes();
    int len = list.getLength();

    for (int i = 0; i < len; i++) {
        Node n = list.item(i);

        if (n.getNodeType() == Node.ELEMENT_NODE) {
            if (elemName.equals(n.getLocalName())
                    && ("*".equals(namespaceURI) || namespaceURI.equals(n.getNamespaceURI()))) {
                return (Element) n;
            }
        }
    }
    return null;
}

From source file:Main.java

private static Element getChildElement(Document document, Element origElement, String subElementName) {
    NodeList buildNodes = origElement.getChildNodes();
    int numChildrenOfOrig = buildNodes.getLength();
    for (int indexChildOfOrig = 0; indexChildOfOrig < numChildrenOfOrig; indexChildOfOrig++) {
        Node child = buildNodes.item(indexChildOfOrig);
        if (child.getNodeName().equals(subElementName)) {
            return (Element) child;
        }// w  ww.  j  a v  a 2s . c o  m
    }

    //if we are here, the child node was never found, so create it now
    Element newElem = document.createElement(subElementName);
    origElement.appendChild(newElem);
    return newElem;

}

From source file:Main.java

public static List<Element> getElementsByTagNames(Element element, String[] tagNames) {
    List<Element> children = new ArrayList<Element>();
    if (element != null && tagNames != null) {
        List tagList = Arrays.asList(tagNames);
        NodeList nodes = element.getChildNodes();
        for (int i = 0; i < nodes.getLength(); i++) {
            Node child = nodes.item(i);
            if (child.getNodeType() == Node.ELEMENT_NODE && tagList.contains(((Element) child).getTagName())) {
                children.add((Element) child);
            }//from  w ww .  j a  v  a  2  s.c  o  m
        }
    }
    return children;
}

From source file:Main.java

public static java.util.List<org.w3c.dom.Element> getChildElementsByTagName(org.w3c.dom.Element xmlParent,
        String tagName) {/*from   w  ww .  ja v  a2 s. c om*/
    java.util.List<org.w3c.dom.Element> rv = new java.util.LinkedList<org.w3c.dom.Element>();
    org.w3c.dom.NodeList nodeList = xmlParent.getChildNodes();
    final int N = nodeList.getLength();
    for (int i = 0; i < N; i++) {
        org.w3c.dom.Node node = nodeList.item(i);
        if (node instanceof org.w3c.dom.Element) {
            org.w3c.dom.Element element = (org.w3c.dom.Element) node;
            if (tagName.equals(element.getTagName())) {
                rv.add(element);
            }
        }
    }
    return rv;
}

From source file:Main.java

public static List<Element> elements(final Element element) {
    List<Element> elements = null;
    if (element != null) {
        final NodeList nodeList = element.getChildNodes();
        if (nodeList != null && nodeList.getLength() > 0) {
            elements = new ArrayList<Element>();
            for (int i = 0; i < nodeList.getLength(); i++) {
                final Node node = nodeList.item(i);
                if (node instanceof Element) {
                    elements.add((Element) node);
                }//ww  w .ja  v a  2  s  .  c om
            }
        }
    }
    return elements;
}