Example usage for org.w3c.dom Element getChildNodes

List of usage examples for org.w3c.dom Element getChildNodes

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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:com.weibo.wesync.notify.xml.DomUtils.java

/**
 * Extract the text value from the given DOM element, ignoring XML comments. <p>Appends all CharacterData nodes and
 * EntityReference nodes into a single String value, excluding Comment nodes.
 *
 * @see CharacterData/*from  w  w w .jav a 2  s .com*/
 * @see EntityReference
 * @see Comment
 */
public static String getTextValue(Element valueEle) {
    Assert.notNull(valueEle, "Element must not be null");
    StringBuilder sb = new StringBuilder();
    NodeList nl = valueEle.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node item = nl.item(i);
        if ((item instanceof CharacterData && !(item instanceof Comment)) || item instanceof EntityReference) {
            sb.append(item.getNodeValue());
        }
    }
    return sb.toString();
}

From source file:Main.java

static public ArrayList<Element> selectElements(Element element, String xpathExpression) throws Exception {
    ArrayList<Element> resultVector = new ArrayList<Element>();
    if (element == null) {
        return resultVector;
    }//from  w w  w .  j a v a  2s  . c o  m
    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)) {
                resultVector.add((Element) node);
            }
        }
    } else {
        XPath xpath = XPathFactory.newInstance().newXPath();
        NodeList nodes = (NodeList) xpath.evaluate(xpathExpression, element, XPathConstants.NODESET);

        for (int i = 0; i < nodes.getLength(); i++) {
            Node node = nodes.item(i);
            resultVector.add((Element) node);
        }
    }
    return resultVector;
}

From source file:Main.java

public static Element getFirstChildElementNS(Element elm, String tns, String localName) {
    if (tns == null && localName == null)
        return getFirstChildElement(elm);

    if (tns == null || tns.length() == 0)
        return getFirstChildElement(elm, localName);

    NodeList nl = elm.getChildNodes();
    for (int c = 0; c < nl.getLength(); c++) {
        Node node = nl.item(c);/* ww  w.j  av  a  2s. c  o m*/
        if (node.getNodeType() != Node.ELEMENT_NODE)
            continue;

        if (localName == null && tns.equals(node.getNamespaceURI()))
            return (Element) node;

        if (localName != null && tns.equals(node.getNamespaceURI()) && localName.equals(node.getLocalName()))
            return (Element) node;
    }

    return null;
}

From source file:Main.java

/**
 * Find element.//  www. j  a va  2 s  . co  m
 * 
 * @param topElm
 *        the top elm
 * @param localName
 *        the local name
 * @param namespace
 *        the namespace
 * @return the element
 */
public static Element findElement(Element topElm, String localName, String namespace) {
    Stack<Element> stack = new Stack<Element>();
    stack.push(topElm);
    while (!stack.isEmpty()) {
        Element curElm = stack.pop();
        if ((curElm.getLocalName().equals(localName))
                && (namespacesAreSame(curElm.getNamespaceURI(), namespace))) {
            return curElm;
        }
        NodeList childNodes = curElm.getChildNodes();
        for (int i = 0, ll = childNodes.getLength(); i < ll; i++) {
            Node item = childNodes.item(i);
            if (item.getNodeType() == Node.ELEMENT_NODE) {
                stack.push((Element) item);
            }
        }
    }
    return null;
}

From source file:Main.java

/**
 * Returns an iterator over the children of the given element with
 * the given tag name.// w w  w  . j  a v a  2  s  . c  o m
 *
 * @param element The parent element
 * @param tagName The name of the desired child
 * @return An interator of children or null if element is null.
 */
public static Iterator getChildrenByTagName(Element element, String tagName) {
    if (element == null)
        return null;
    // getElementsByTagName gives the corresponding elements in the whole
    // descendance. We want only children

    NodeList children = element.getChildNodes();
    ArrayList goodChildren = new ArrayList();
    for (int i = 0; i < children.getLength(); i++) {
        Node currentChild = children.item(i);
        if (currentChild.getNodeType() == Node.ELEMENT_NODE
                && ((Element) currentChild).getTagName().equals(tagName)) {
            goodChildren.add((Element) currentChild);
        }
    }
    return goodChildren.iterator();
}

From source file:eu.planets_project.services.utils.cli.CliMigrationPaths.java

/**
 * @param resourceName The XML file containing the path configuration
 * @return The paths defined in the XML file
 * @throws ParserConfigurationException//from  www .j a  v a  2 s.  c  om
 * @throws IOException
 * @throws SAXException
 * @throws URISyntaxException
 */
// TODO: Clean up this exception-mess. Something like "InitialisationException" or "ConfigurationErrorException" should cover all these exceptions.
public static CliMigrationPaths initialiseFromFile(String resourceName)
        throws ParserConfigurationException, IOException, SAXException, URISyntaxException {

    InputStream instream;

    ClassLoader loader = Thread.currentThread().getContextClassLoader();
    URL resourceURL = loader.getResource(resourceName);
    if (new File(defaultPath, resourceName).isFile()) {
        instream = new FileInputStream(new File(defaultPath, resourceName));
    } else if (new File(resourceName).isFile()) {
        instream = new FileInputStream(new File(resourceName));
    } else if (resourceURL != null) {
        instream = resourceURL.openStream();
    } else {
        String msg = String.format("Could not locate resource %s", resourceName);
        throw new FileNotFoundException(msg);
    }

    CliMigrationPaths paths = new CliMigrationPaths();

    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

    DocumentBuilder builder = dbf.newDocumentBuilder();
    Document doc = builder.parse(instream);

    Element fileformats = doc.getDocumentElement();
    if (fileformats != null) {
        NodeList children = fileformats.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            if (child.getNodeType() == Node.ELEMENT_NODE) {
                if (child.getNodeName().equals("path")) {
                    CliMigrationPath pathdef = decodePathNode(child);
                    paths.add(pathdef);
                }
            }
        }
    }
    IOUtils.closeQuietly(instream);
    return paths;
}

From source file:Main.java

public static void mergeElement(Element from, Element to) {
    // attrs// w w  w  .  jav a2s . co  m
    for (int idx = 0; idx < from.getAttributes().getLength(); idx++) {
        Node node = from.getAttributes().item(idx);
        to.getAttributes().setNamedItem(node.cloneNode(false));
    }

    // children
    for (int idx = 0; idx < from.getChildNodes().getLength(); idx++) {
        Node node = from.getChildNodes().item(idx);

        if (!Element.class.isInstance(node)) {
            continue;
        }

        to.appendChild(node.cloneNode(true));
    }
}

From source file:com.omertron.traileraddictapi.tools.DOMHelper.java

/**
 * Gets the string value of the tag element name passed
 *
 * @param element/*from ww w .ja v a  2 s. co m*/
 * @param tagName
 * @return
 */
public static String getValueFromElement(Element element, String tagName) {
    NodeList elementNodeList = element.getElementsByTagName(tagName);

    String value = "";

    if (elementNodeList != null) {
        Element tagElement = (Element) elementNodeList.item(0);
        if (tagElement != null) {
            NodeList tagNodeList = tagElement.getChildNodes();
            if (tagNodeList != null && tagNodeList.getLength() > 0) {
                value = ((Node) tagNodeList.item(0)).getNodeValue();
            }
        }
    }

    return value;
}

From source file:no.kantega.commons.util.XMLHelper.java

public static String getText(Element element) {
    StringBuilder buffer = new StringBuilder();
    NodeList children = element.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        if (children.item(i) instanceof Text) {
            buffer.append(((Text) children.item(i)).getData());
        }// ww  w. ja v  a 2  s  .c  o  m
    }
    return buffer.toString();
}

From source file:Main.java

/**
 * Returns the children elements with the specified tagName for the
 * specified parent element.//from   w  ww  . j  av  a 2s  .  c om
 *
 * @param parent The parent whose children we're looking for.
 * @param tagName the name of the child to find
 * @return List of the children with the specified name
 * @throws NullPointerException if parent or tagName are null
 */
public static List<Element> findChildren(Element parent, String tagName) {
    if (parent == null || tagName == null)
        throw new NullPointerException(
                "Parent or tagname were null! " + "parent = " + parent + "; tagName = " + tagName);

    List<Element> result = new ArrayList<Element>();
    NodeList nodes = parent.getChildNodes();
    Node node;
    int len = nodes.getLength();
    for (int i = 0; i < len; i++) {
        node = nodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            Element element = (Element) node;
            if (element.getNodeName().equals(tagName))
                result.add(element);
        }
    }

    return result;
}