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

/**
 * Checks if is element exists by tag name.
 * @param element the element/*from   ww w. ja  v a 2  s.c  o  m*/
 * @param tagName the tag name
 * @return true, if is element exists by tag name
 */
public static boolean isElementExistsByTagName(final Element element, final String tagName) {

    if (element == null || tagName == null || tagName.isEmpty()) {
        return false;
    }

    // Extract all children on element
    final NodeList res = element.getChildNodes();

    for (int i = 0; i < res.getLength(); i++) {

        final Node node = res.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {

            final Element elem = (Element) node;

            // Check matching with tagname expected
            if (elem.getTagName().equals(tagName)) {
                return true;
            }
        }
    }

    return false;
}

---

From source file:Main.java

/**
 * Obtains the list of child elements with the specified tag name
 * inside the specific namespace.//from w w  w. j a  va2  s .co  m
 *
 * @param element the root element.
 * @param namespace the child namespace name.
 * @param tagName the child tag name.
 * @return the child element list.
 */
public static List<Element> getChildElements(final Element element, final String namespace,
        final String tagName) {
    final List<Element> elements = getElementList(element);
    final int numElements = elements.size();
    final List<Element> childElements = new ArrayList<Element>();
    for (int i = 0; i < numElements; i++) {
        final Element childElement = elements.get(i);
        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;
        }
        childElements.add(childElement);
    }
    return childElements;
}

---

From source file:DOMCopy.java

private static void outputElement(Element node, String indent) {
        System.out.print(indent + "<" + node.getTagName());
        NamedNodeMap nm = node.getAttributes();
        for (int i = 0; i < nm.getLength(); i++) {
            Attr attr = (Attr) nm.item(i);
            System.out.print(" " + attr.getName() + "=\"" + attr.getValue() + "\"");
        }/*from  w  w  w  .  j  a  v a  2 s.c  om*/
        System.out.println(">");
        NodeList list = node.getChildNodes();
        for (int i = 0; i < list.getLength(); i++)
            outputloop(list.item(i), indent + TAB);
        System.out.println(indent + "</" + node.getTagName() + ">");
    }

---

From source file:Main.java

public static void printElement(Element e) {
    List lst = getChildrenElement(e);
    if (lst.size() == 0) {
        System.out.print(e.getTagName() + "=");
        String value = getNodeText(e);
        if (value.trim().length() > 0)
            System.out.println(value);
        else//from  www  .j a  v a 2 s  . c o  m
            System.out.println();

        NamedNodeMap nn = e.getAttributes();
        for (int i = 0; i < nn.getLength(); i++) {
            Attr attr = (Attr) e.getAttributes().item(i);
            System.out.println(attr.getName() + "=" + attr.getValue());
        }
    } else {
        System.out.println(e.getTagName());
        for (int i = 0; i < lst.size(); i++) {
            printElement((Element) lst.get(i));
        }
    }
}

---

From source file:Main.java

/**
 * Copy elements from one document to another attaching at the specified
 * element and translating the namespace.
 *
 * @param from         copy the children of this element (exclusive)
 * @param to           where to attach the copied elements
 * @param newNamespace destination namespace
 *
 * @since 8.4/*from w ww .  j  a v a  2  s .com*/
 */
public static void copyDocument(Element from, Element to, String newNamespace) {
    Document doc = to.getOwnerDocument();
    NodeList nl = from.getChildNodes();
    int length = nl.getLength();
    for (int i = 0; i < length; i++) {
        Node node = nl.item(i);
        Node newNode = null;
        if (Node.ELEMENT_NODE == node.getNodeType()) {
            Element oldElement = (Element) node;
            newNode = doc.createElementNS(newNamespace, oldElement.getTagName());
            NamedNodeMap m = oldElement.getAttributes();
            Element newElement = (Element) newNode;
            for (int index = 0; index < m.getLength(); index++) {
                Node attr = m.item(index);
                newElement.setAttribute(attr.getNodeName(), attr.getNodeValue());
            }
            copyDocument(oldElement, newElement, newNamespace);
        } else {
            newNode = node.cloneNode(true);
            newNode = to.getOwnerDocument().importNode(newNode, true);
        }
        if (newNode != null) {
            to.appendChild(newNode);
        }
    }
}

---

From source file:Main.java

static boolean canBeMerged(Node node1, Node node2, String requiredTagName) {
    if (node1.getNodeType() != Node.ELEMENT_NODE || node2.getNodeType() != Node.ELEMENT_NODE)
        return false;

    Element element1 = (Element) node1;
    Element element2 = (Element) node2;

    if (!equals(requiredTagName, element1.getTagName()) || !equals(requiredTagName, element2.getTagName()))
        return false;

    NamedNodeMap attributes1 = element1.getAttributes();
    NamedNodeMap attributes2 = element2.getAttributes();

    if (attributes1.getLength() != attributes2.getLength())
        return false;

    for (int i = 0; i < attributes1.getLength(); i++) {
        final Attr attr1 = (Attr) attributes1.item(i);
        final Attr attr2;
        if (isNotEmpty(attr1.getNamespaceURI()))
            attr2 = (Attr) attributes2.getNamedItemNS(attr1.getNamespaceURI(), attr1.getLocalName());
        else//from  w ww  .  ja  v  a2 s  .  c  om
            attr2 = (Attr) attributes2.getNamedItem(attr1.getName());

        if (attr2 == null || !equals(attr1.getTextContent(), attr2.getTextContent()))
            return false;
    }

    return true;
}

---

From source file:Main.java

/**
 * Obtains the first child element with the specified name inside
 * the specified namespace.//  ww  w.j  av a  2  s  .co m
 *
 * @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

private static List<RSSChannel> readChannels(NodeList nodes) {
    List<RSSChannel> result = new ArrayList<RSSChannel>();
    for (int i = 0; i < nodes.getLength(); ++i) {
        Node node = nodes.item(i);
        if (node instanceof Element) {
            Element elem = (Element) node;
            if (elem.getTagName().equalsIgnoreCase("channel")) {
                result.add(readChannel(elem.getChildNodes()));
            }//w ww.  j av a 2s .  c  o  m
        }
    }
    return result;
}

---

From source file:Main.java

/**
 * Method getFirstChildTag. Return the first child-node which is an element
 * with tagName equal to given tag.//from ww w . j av  a 2s .  co m
 * 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

private static RSSChannel readChannel(NodeList nodes) {
    RSSChannel channel = new RSSChannel();
    for (int i = 0; i < nodes.getLength(); ++i) {
        Node node = nodes.item(i);
        if (node instanceof Element) {
            Element elem = (Element) node;
            if (elem.getTagName().equalsIgnoreCase("title")) {
                channel.setTitle(getText(elem));
            } else if (elem.getTagName().equalsIgnoreCase("link")) {
                channel.setLink(getText(elem));
            } else if (elem.getTagName().equalsIgnoreCase("description")) {
                channel.setDescription(getText(elem));
            } else if (elem.getTagName().equalsIgnoreCase("item")) {
                channel.addItem(readItem(elem.getChildNodes()));
            }/*  w ww  .  j  av a  2s  . co m*/
        }
    }
    return channel;
}

---

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