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

/**
 * Obtains the first child element with the specified name inside
 * the specified namespace./*from www  .  ja v  a 2  s .c om*/
 *
 * @param element the root element.
 * @param namespace the namespace of the child element.
 * @param tagName the child local name.
 * @return the child element.
 */
public static Element getChildElement(final Element element, final String namespace, final String tagName) {
    final NodeList childNodes = element.getChildNodes();
    final int numChildren = childNodes.getLength();

    for (int i = 0; i < numChildren; i++) {
        final Node childNode = childNodes.item(i);
        if (childNode.getNodeType() != Node.ELEMENT_NODE) {
            continue;
        }

        final Element childElement = (Element) childNode;
        String childTagName = childElement.getTagName();
        final String childPrefix = childElement.getPrefix();
        final String childNamespace = (childPrefix != null ? childElement.lookupNamespaceURI(childPrefix)
                : null);

        if (namespace != null) {
            if (!namespace.equals(childNamespace)) {
                continue;
            } else {
                childTagName = childElement.getLocalName();
            }
        }

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

---

From source file:Main.java

/**
 * Looks up a child with the given (local) name.
 * <p>//  w w w.j av a  2 s.  c om
 * An array of several names may be passed, in which case they will be traversed in a simple
 * XPath-like fashion.
 */

public static Element getChildNamed(Element element, String... names) {

    if (element == null) {
        return null;
    }

    Element child = null;
    NodeList children = element.getChildNodes();

    outer: for (String name : names) {
        for (int loop = 0, length = children.getLength(); loop < length; loop++) {
            Node node = children.item(loop);

            if (!(node instanceof Element)) {
                continue;
            }

            child = (Element) node;

            if (name.equals(child.getLocalName())) {
                children = child.getChildNodes();
                continue outer;
            }
        }

        // No match found

        return null;
    }

    return child;
}

---

From source file:Main.java

static public Element selectSingleElement(Element element, String xpathExpression)
        throws XPathExpressionException {
    if (xpathExpression.indexOf("/") == -1) {
        NodeList nodeList = element.getChildNodes();
        for (int i = 0; i < nodeList.getLength(); i++) {
            Node node = nodeList.item(i);
            if (node.getNodeType() == Node.ELEMENT_NODE && node.getNodeName().equals(xpathExpression)) {
                return (Element) node;
            }/* w  ww .  j a v a  2  s  .  co  m*/
        }
        //  NodeList nodes = element.getElementsByTagName(xpathExpression);
        //  if (nodes.getLength() > 0) {
        //      return (Element) nodes.item(0);
        //  } else {
        return null;
        //  }
    } else {
        XPath xpath = XPathFactory.newInstance().newXPath();
        Element node = (Element) xpath.evaluate(xpathExpression, element, XPathConstants.NODE);
        return node;
    }
}

---

From source file:Main.java

public static String getFullTextFromChildren(Element element) {
    if (element == null) {
        return null;
    }/*ww  w . j  av a 2s.c  om*/

    StringBuffer sb = new StringBuffer(1000);
    NodeList nl = element.getChildNodes();
    Node child = null;
    int length = nl.getLength();

    for (int i = 0; i < length; i++) {
        child = nl.item(i);

        if (child.getNodeType() == Node.TEXT_NODE) {
            sb.append(child.getNodeValue());
        }
    }

    return sb.toString().trim();
}

---

From source file:Util.java

/**
 * Renvoie les lments enfants (uniquement de type ELEMENT)
 * /*  w ww .j av a  2s .  co m*/
 * @param e
 * @return
 */
public static Iterable<Element> getChildElements(final Element e) {
    return new Iterable<Element>() {
        public Iterator<Element> iterator() {
            final NodeList list = e.getChildNodes();
            int i = 0;
            for (; i < list.getLength(); i++) {
                if (list.item(i).getNodeType() == Node.ELEMENT_NODE)
                    break;
            }
            final int init = i;
            return new Iterator<Element>() {
                int cur = init;

                public void remove() {
                    throw new UnsupportedOperationException();
                }

                public Element next() {
                    Element item = (Element) list.item(cur);
                    for (cur++; cur < list.getLength(); cur++) {
                        if (list.item(cur).getNodeType() == Node.ELEMENT_NODE)
                            break;
                    }
                    return item;
                }

                public boolean hasNext() {
                    return cur < list.getLength();
                }

            };
        }
    };
}

---

From source file:Main.java

/**
 * get the  text string in an element (eg interspersed between child elements), 
 * or "" if there is none or if the Element is null.
 * Tries to ignore white space text; but does not succeed.
 *//*from   w  ww .j  ava  2  s  . c o  m*/
public static String getText(Element el) {
    String res = "";
    if (el != null)
        try {
            el.normalize(); // does not help recognise white space
            NodeList nodes = el.getChildNodes();
            for (int i = 0; i < nodes.getLength(); i++)
                if (nodes.item(i) instanceof Text) {
                    Text text = (Text) nodes.item(i);
                    // this filter seems to make no difference
                    if (!text.isElementContentWhitespace()) {
                        String tData = text.getData();
                        // this seems to be an effective way to catch pure white space
                        StringTokenizer nonWhiteSpace = new StringTokenizer(tData, "\n \t");
                        if (nonWhiteSpace.countTokens() > 0)
                            res = res + tData;
                    }
                }
        } catch (Exception e) {
            System.out.println("Text failure: " + e.getMessage());
        }
    return res;
}

---

From source file:Main.java

/**
 * Access an immediate child element inside the given Element
 *
 * @param element the starting element, cannot be null.
 * @param elemName the name of the child element to look for, cannot be
 * null./*w ww . ja  va 2 s.c  o m*/
 * @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 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.getNodeName())) {
                return (Element) n;
            }
        }
    }
    return null;
}

---

From source file:Main.java

public static Element fetchSubElement(Element e, String subElementName) {
    if (e == null || subElementName == null) {
        return null;
    }/*  ww w  .  j  a  v a 2 s  .c om*/

    subElementName = subElementName.toUpperCase();

    NodeList list = e.getChildNodes();
    for (int i = 0; i < list.getLength(); i++) {
        if (list.item(i) instanceof Element) {
            Element element = (Element) list.item(i);
            if (element.getTagName().toUpperCase().equals(subElementName)) {
                return element;
            }
        }
    }

    return null;
}

---

From source file:Main.java

/**
 * This method searches children of Element element for element with tagName
 * and namespaceURI nsName. It searchs one level down only.
 * //from  w w  w  . j ava  2  s .c  o  m
 * @param element
 *            The root element
 * @param nsName
 *            NamespaceURI
 * @param tagName
 *            A String representing the name of the tag to be searched for.
 * @return A List of elements that meet the criterial.
 */
public static List getElementsByTagNameNS1(Element element, String nsName, String tagName) {
    List list = new ArrayList();

    if (element != null) {
        NodeList nl = element.getChildNodes();
        int length = nl.getLength();
        for (int i = 0; i < length; i++) {
            Node child = nl.item(i);
            String childName = child.getLocalName();
            String childNS = child.getNamespaceURI();
            if ((childName != null) && (childName.equals(tagName)) && (childNS != null)
                    && (childNS.equals(nsName))) {
                list.add(child);
            }
        }
    }
    return list;
}

---

From source file:Main.java

/**
 * Removes the child elements inside the given Element
 *
 * @param element the starting element, cannot be null.
 * @param elemName the name of the child element to look for, cannot be
 * null.//from   w  w  w  . j av  a  2 s. com
 * @return the removed child element inside element, or
 * <code>null</code> if the child element is not found.
 */
public static Element removeChildElement(Element element, String elemName) {
    NodeList list = element.getChildNodes();
    Element cur = element;
    int len = list.getLength();
    for (int i = 0; i < len; i++) {
        Node n = list.item(i);

        if (n != null) {
            if (n.getNodeType() == Node.ELEMENT_NODE) {
                if (elemName.equals(n.getNodeName())) {
                    cur = (Element) element.removeChild(n);
                }
            }
        }
    }
    return cur;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »