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

/**
 * Get the elements who's tags match those passed in. 
 * @param nodeList - the node list in which to look for elements 
 * @param tags - the tags to match (empty returns all elements).
 * @return The elements that matched.//from  ww w . ja  v a2 s  .  co  m
 */
public static List<Element> getElements(NodeList nodeList, String... tags) {
    int nNodes = nodeList.getLength();
    List<Element> elements = new ArrayList<Element>(nNodes);

    Set<String> tagSet = new HashSet<String>(tags.length);
    for (String tag : tags) {
        tagSet.add(tag);
    }
    for (int i = 0; i < nNodes; ++i) {
        Node node = nodeList.item(i);
        if (node instanceof Element) {
            Element element = (Element) node;
            String tagName = element.getTagName();
            if (tagSet.isEmpty() || tagSet.contains(tagName)) {
                elements.add(element);
            }
        }
    }
    return elements;
}

From source file:Main.java

public static String elementToString(Element e) {
    StringBuilder buf = new StringBuilder();
    buf.append(e.getTagName()).append("{");
    for (int i = 0; i < e.getAttributes().getLength(); i++) {
        if (i > 0) {
            buf.append(", ");
        }/*  w ww .j  a  va  2 s .  c  o  m*/
        Node n = e.getAttributes().item(i);
        buf.append(attributeName((Attr) n)).append("=").append(n.getNodeValue());
    }
    buf.append("}");
    return buf.toString();
}

From source file:Main.java

/**
 * Gets a child node by the given name.//from   w  w  w  .ja v a  2s  .  c  om
 *
 * @param node the node
 * @param name the name of the child node to find and return
 * @return the child node, or <tt>null</tt> if none found
 */
public static Node getChildNodeByTagName(Node node, String name) {
    NodeList children = node.getChildNodes();
    if (children != null && children.getLength() > 0) {
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            if (child instanceof Element) {
                Element element = (Element) child;
                if (name.equals(element.getTagName())) {
                    return element;
                }
            }
        }
    }
    return null;
}

From source file:Main.java

/**
 * Returns a list of children (class Element) with the given tag name
 *//*w  w  w  .j  a v a 2s .co  m*/
public static List<Element> getChilden(final Element element, final String tagName) {
    final List<Element> children = new ArrayList<Element>();
    final NodeList nodes = element.getChildNodes();
    for (int i = 0; i < nodes.getLength(); i++) {
        final Node item = nodes.item(i);
        if (!(item instanceof Element)) {
            continue;
        }
        final Element elem = (Element) item;
        if (tagName.equals(elem.getTagName())) {
            children.add(elem);
        }
    }
    return children;
}

From source file:Main.java

/**
 * Returns the first child element for the given name
 *//*w  ww .j  a v a 2  s  .  c  o  m*/
public static Element firstChild(Element element, String name) {
    NodeList nodes = element.getChildNodes();
    if (nodes != null) {
        for (int i = 0, size = nodes.getLength(); i < size; i++) {
            Node item = nodes.item(i);
            if (item instanceof Element) {
                Element childElement = (Element) item;

                if (name.equals(childElement.getTagName())) {
                    return childElement;
                }
            }
        }
    }
    return null;
}

From source file:Main.java

/**
 * Search all child nodes of the given for the first element that has the
 * specified tag name./*from w  w w . jav  a 2s  . c om*/
 *
 * @param aStartNode
 *        The parent element to be searched. May not be <code>null</code>.
 * @param sName
 *        The tag name to search.
 * @return <code>null</code> if the parent element has no such child element.
 */
@Nullable
public static Element getFirstChildElementOfName(@Nonnull final Node aStartNode, @Nullable final String sName) {
    final NodeList aNodeList = aStartNode.getChildNodes();
    final int nLen = aNodeList.getLength();
    for (int i = 0; i < nLen; ++i) {
        final Node aNode = aNodeList.item(i);
        if (aNode.getNodeType() == Node.ELEMENT_NODE) {
            final Element aElement = (Element) aNode;
            if (aElement.getTagName().equals(sName))
                return aElement;
        }
    }
    return null;
}

From source file:Main.java

/**
 * Retrieves the given DOM element's child elements with the specified name.
 * If name is null, all children are retrieved.
 *//*from  www . j av  a  2 s  . c  om*/
public static Element[] getChildren(final Element el, final String name) {
    final Vector v = new Vector();
    final NodeList nodes = el.getChildNodes();
    final int len = nodes.getLength();
    for (int i = 0; i < len; i++) {
        final Node node = nodes.item(i);
        if (!(node instanceof Element))
            continue;
        final Element e = (Element) node;
        if (name == null || e.getTagName().equals(name))
            v.add(e);
    }
    final Element[] els = new Element[v.size()];
    v.copyInto(els);
    return els;
}

From source file:Main.java

public static final Element checkIfElement(Node node, String tag) {
    Element result = null;/*  w w  w  .j a v a2s.  co m*/
    if (isElement(node)) {
        Element tmp = (Element) node;
        if (tag == null || tmp.getTagName().equals(tag)) {
            result = tmp;
        }
    }
    return result;
}

From source file:Main.java

public static String nodeToString(Object node) {
    String result = "";
    if (node instanceof String) {
        String str = ((String) node).replaceAll("\\s+", " ").trim();
        result += str;//  w  ww .ja v a  2s.  co  m
    } else if (node instanceof Text) {
        String str = ((Text) node).getTextContent().replaceAll("\\s+", " ").trim();
        result += str;
    } else if (node instanceof Element) {
        Element en = (Element) node;
        result += "<" + en.getTagName();
        for (int j = 0; j < en.getAttributes().getLength(); j++) {
            Attr attr = (Attr) en.getAttributes().item(j);
            //if (!(attr.getNamespaceURI() != null && attr.getNamespaceURI().equals("http://www.w3.org/2000/xmlns/") && (attr.getLocalName().equals("xmlns") || attr.getLocalName().equals("xsi")))) {
            result += " " + attr.getName() + "=\"" + attr.getValue() + "\"";
            //}
        }
        if (en.getChildNodes().getLength() == 0) {
            result += "/>";
        } else {
            result += ">";
            ArrayList<Object> children = new ArrayList<Object>();
            for (int i = 0; i < en.getChildNodes().getLength(); i++) {
                children.add(en.getChildNodes().item(i));
            }
            result += nodesToString(children);
            result += "</" + en.getTagName() + ">";
        }
    }
    return result;
}

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  www . ja  va2s  . co m*/
 */
public static int[] getElementArrayInt(Element root, String name, String attrib) {
    if (root == null)
        return null;

    NodeList nl = root.getChildNodes();
    LinkedList<Integer> elementCache = new LinkedList<Integer>();
    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);
        int eleVal = 0;
        try {
            eleVal = Integer.parseInt(valS);
        } catch (Exception e) {
        }

        elementCache.addLast(new Integer(eleVal));
    }

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

    return retArr;
}