Example usage for org.w3c.dom Element getTagName

Introduction

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

Prototype

public String getTagName();

Source Link

Document

The name of the element.

Usage

From source file:Main.java

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

    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

/**
 * Given an XML element, this method returns nested elements which are direct
 * children of the given element - but only those that have the element-name "childrenName" (the second parameter).
 * @param element//from ww w . ja v  a  2  s .c o  m
 * @param childrenName
 * @return
 */
public static List<Element> getChildElements(Element element, String childrenName) {
    List<Element> ret = new LinkedList<Element>();
    NodeList nodeList = element.getChildNodes();
    for (int index = 0; index < nodeList.getLength(); ++index) {
        Node node = nodeList.item(index);
        if (node instanceof Element) {
            Element elementOfNode = (Element) node;
            if (elementOfNode.getTagName().equals(childrenName)) {
                ret.add(elementOfNode);
            }

        }
    }
    return ret;
}

From source file:Utils.java

/**
 * <p>Returns a list of child elements with the given
 * name. Returns an empty list if there are no such child
 * elements.</p>/*from   w  ww  .  j  a  v a 2 s .c o  m*/
 *
 * @param parent parent element
 * @param name name of the child element
 * @return child elements
 */
public static List getChildElementsByName(Element parent, String name) {
    List elements = new ArrayList();

    NodeList children = parent.getChildNodes();

    for (int i = 0; i < children.getLength(); i++) {
        Node node = children.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            Element element = (Element) node;
            if (element.getTagName().equals(name)) {
                elements.add(element);
            }
        }
    }

    return elements;
}

From source file:Main.java

/**
 * Parses an XML file and returns the name of the document element.
 * @param file the file containing the XML to parse.
 * @return the name of the document element, or null if the file does not parse.
 */// w ww. j av a 2  s .c om
public static String getDocumentElementName(File file) {
    try {
        DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        Document d = db.parse(file);
        Element root = d.getDocumentElement();
        return root.getTagName();
    } catch (Exception e) {
        return null;
    }
}

From source file:Main.java

public static void genericRemoveAll(Element parent, String tagname) {
    NodeList nl = parent.getChildNodes();
    List<Element> parts = new ArrayList<Element>();
    for (int i = 0; i < nl.getLength(); i++) {
        if (nl.item(i) instanceof Element) {
            Element elem = (Element) nl.item(i);
            if (elem.getTagName().equals(tagname))
                parts.add(elem);/*  ww w.  j ava  2  s  . c  o  m*/
        }
    }
    for (Element part : parts)
        parent.removeChild(part);
}

From source file:Main.java

private static void traverseNodes(Element parent, String tagName, List<Element> lst) {
    if (parent.getTagName().indexOf(tagName) != -1) {
        lst.add(parent);//from   w w  w  .  ja  va2  s.co m
        return;
    } else {
        NodeList nodeList = parent.getChildNodes();
        for (int i = 0; i < nodeList.getLength(); i++) {
            Node item = nodeList.item(i);
            if (item.getNodeType() == Node.ELEMENT_NODE) {
                traverseNodes((Element) item, tagName, lst);
            }
        }
    }
}

From source file:Main.java

public static List<Element> elements(Element root, String tagName) {
    List<Element> L = new ArrayList<Element>();
    if (root == null)
        return L;
    for (Node n1 = root.getFirstChild(); n1 != null; n1 = n1.getNextSibling()) {
        if (n1.getNodeType() != Node.ELEMENT_NODE)
            continue;
        Element e2 = Element.class.cast(n1);
        if (e2.getTagName().equals(tagName)) {
            L.add(e2);//from  w w w. java 2s .  co  m
        }
    }
    return L;
}

From source file:Main.java

public static Vector<Element> getChildList(Element elem, String elementName) {
    if (elem == null)
        return null;
    NodeList nl = elem.getChildNodes();
    if (nl == null)
        return null;
    Vector<Element> retlist = new Vector<Element>(100);
    for (int n = 0; n < nl.getLength(); n++) {
        Element element = (Element) nl.item(n);
        if (elementName.equals(element.getTagName())) {
            retlist.addElement(element);
        }/*  w  w  w. j a va 2 s .c om*/
    }
    if (retlist.size() == 0)
        return null;
    return retlist;
}

From source file:Main.java

/**
 * Returns a list of all the tags in an XML document
 * /*from w  ww  .ja  v  a  2  s.  c  o  m*/
 * @param doc
 * @return list of all tags
 */
public static List<String> getAllTags(Document doc) {
    List<String> tags = new ArrayList<String>();
    NodeList ns = doc.getElementsByTagName("*");
    for (int i = 0; i < ns.getLength(); i++) {
        Element element = (Element) ns.item(i);
        tags.add(element.getTagName());
    }
    return tags;
}

From source file:Main.java

/**
 * Takes a number of tags of name 'name' that are children of 'root', and
 * looks for attributes of 'attrib' on them.  Converts attributes to an
 * int and returns in an array.//from  w ww . j a v  a  2 s .  c o  m
 */
public static String[] getElementArrayString(Element root, String name, String attrib) {
    if (root == null)
        return null;

    NodeList nl = root.getChildNodes();
    LinkedList<String> elementCache = new LinkedList<String>();
    int size = nl.getLength();

    for (int i = 0; i < size; i++) {
        Node node = nl.item(i);
        if (!(node instanceof Element))
            continue;
        Element ele = (Element) node;
        if (!ele.getTagName().equals(name))
            continue;

        String valS = ele.getAttribute(attrib);

        elementCache.addLast(valS);
    }

    String[] retArr = new String[elementCache.size()];
    Iterator<String> it = elementCache.iterator();
    int idx = 0;
    while (it.hasNext()) {
        retArr[idx++] = it.next();
    }

    return retArr;
}