Example usage for org.w3c.dom Node ELEMENT

Introduction

In this page you can find the example usage for org.w3c.dom Node ELEMENT_NODE.

Prototype

short ELEMENT_NODE

To view the source code for org.w3c.dom Node ELEMENT_NODE.

Click Source Link

Document

The node is an Element.

Usage

From source file:Main.java

/**
 * Determine whether a single child is available of a particular type.
 * @return true if the specified child element is present
 * @throws Exception if the child is present multiple times.
 *//*  ww w .j  ava2 s  .  c o  m*/
public static boolean hasChild(Element element, String child) throws Exception {
    NodeList nodes = element.getChildNodes();
    Element ret = null;
    for (int i = 0; i < nodes.getLength(); i++) {
        Node childNode = nodes.item(i);
        if (childNode.getNodeName().equals(child) && childNode.getNodeType() == Node.ELEMENT_NODE) {
            if (ret != null) {
                throw new Exception("Child element '" + child + "' present multiple times");
            } else {
                ret = (Element) childNode;
            }
        }
    }
    return ret != null;
}

From source file:Main.java

/**
 * Format generated xml doc by indentation
 *
 * @param node   For java, rather than GWT
 * @param indent//from ww w  .  j a v a 2  s  . co  m
 * @return
 */
public static String format(Node node, String indent) {
    StringBuilder formatted = new StringBuilder();

    if (node.getNodeType() == Node.ELEMENT_NODE) {
        StringBuilder attributes = new StringBuilder();
        for (int k = 0; k < node.getAttributes().getLength(); k++) {
            attributes.append(" ");
            attributes.append(node.getAttributes().item(k).getNodeName());
            attributes.append("=\"");
            attributes.append(node.getAttributes().item(k).getNodeValue());
            attributes.append("\"");
        }

        formatted.append(indent);
        formatted.append("<");
        formatted.append(node.getNodeName());
        formatted.append(attributes.toString());
        if (!node.hasChildNodes()) {
            formatted.append("/>\n");
            return formatted.toString();
        }
        if ((node.hasChildNodes() && node.getFirstChild().getNodeType() == Node.TEXT_NODE)) {
            formatted.append(">");
        } else {
            formatted.append(">\n");
        }

        for (int i = 0; i < node.getChildNodes().getLength(); i++) {
            formatted.append(format(node.getChildNodes().item(i), indent + "   "));
        }

        if (node.hasChildNodes() && node.getFirstChild().getNodeType() != Node.TEXT_NODE) {
            formatted.append(indent);
        }
        formatted.append("</");
        formatted.append(node.getNodeName());
        formatted.append(">\n");
    } else {
        String value = node.getTextContent().trim();
        if (value.length() > 0) {
            formatted.append(value);
        }
    }
    return formatted.toString();
}

From source file:Main.java

public static String getElementValue(Node node, String nodeName) {
    NodeList children = node.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        Node child = children.item(i);
        if ((child.getNodeType() == Node.ELEMENT_NODE) && (child.getNodeName().equals(nodeName)))
            return getElementValue(child);
    }/*ww  w  .  jav a2 s .  c  o  m*/
    return null;
}

From source file:Main.java

/**
 * Returns the child element with the specified tagName for the specified parent element
 * // w  w w  .j a  v  a 2s  .c  o m
 * @param parent
 * @param tagName
 * @return
 */
public static Element getChildElementByTagName(Element parent, String tagName) {
    if (parent == null || tagName == null) {
        return null;
    }

    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) node).getNodeName().equals(tagName)) {
            return (Element) node;
        }
    }

    return null;
}

From source file:Main.java

public static String getChildElementValueByTagName(Element parentElement, String childTag) {
    if (childTag.equals(parentElement.getNodeName())) {
        return getNodeValue(parentElement);
    }/*from w  w w .  j  a v a  2s  . c o  m*/
    for (Node temp = parentElement.getFirstChild(); temp != null; temp = temp.getNextSibling()) {
        if (temp.getNodeType() == Node.ELEMENT_NODE && childTag.equals(temp.getNodeName())) {
            return getNodeValue(temp);
        }
    }
    return null;
}

From source file:Main.java

public static Element findPreviousElement(final Node current, final boolean sameName) {
    String name = null;//  ww  w. j  ava  2s .  c o m
    if (sameName) {
        name = current.getNodeName();
    }
    int type = Node.ELEMENT_NODE;
    return (Element) getPrevious(current, name, type);
}

From source file:Main.java

/**
 * @param name The name of the child elements you want
 * @return a List of child Elements/*from  w w w.  ja va  2s  . c o  m*/
 */
public static List<Element> getChildren(Element element, String name) throws Exception {
    NodeList nodes = element.getChildNodes();
    ArrayList<Element> ret = new ArrayList<Element>(nodes.getLength());
    for (int i = 0; i < nodes.getLength(); i++) {
        Node childNode = nodes.item(i);
        if (childNode.getNodeName().equals(name) && childNode.getNodeType() == Node.ELEMENT_NODE) {
            ret.add((Element) childNode);
        }
    }
    return ret;
}

From source file:Main.java

/**
 * equivalent to the XPath expression './/tagName[@attrName='attrValue']'
 *///from   w w  w.  ja  v  a 2  s .c o  m
public static Element getElementByAttributeValue(Node start, String tagName, String attrName,
        String attrValue) {
    NodeList nl = ((Element) start).getElementsByTagName(tagName);
    int l = nl.getLength();

    if (l == 0) {
        return null;
    }

    Element e = null;
    String compareValue = null;

    for (int i = 0; i < l; i++) {
        e = (Element) nl.item(i);

        if (e.getNodeType() == Node.ELEMENT_NODE) {
            compareValue = e.getAttribute(attrName);

            if (compareValue.equals(attrValue)) {
                return e;
            }
        }
    }

    return null;
}

From source file:Main.java

public static Element first(Element root, String namepaceUri, String localName) {
    if (root == null)
        return null;
    for (Node n1 = root.getFirstChild(); n1 != null; n1 = n1.getNextSibling()) {
        if (n1.getNodeType() != Node.ELEMENT_NODE)
            continue;
        Element e2 = Element.class.cast(n1);
        if (namepaceUri.equals(e2.getNamespaceURI()) && e2.getLocalName().equals(localName)) {
            return e2;
        }//from  ww  w.ja  v  a  2 s  .  c om
    }
    return null;
}

From source file:Main.java

/**
 * Get element node string value./*from  www .  j a v  a 2  s .c  o  m*/
 * 
 * @param element element to get string value for
 * @return concatenated text node descendant values
 */
public static String getStringValue(final Element element) {
    final StringBuilder buf = new StringBuilder();
    final NodeList children = element.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        final Node n = children.item(i);
        switch (n.getNodeType()) {
        case Node.TEXT_NODE:
            buf.append(n.getNodeValue());
            break;
        case Node.ELEMENT_NODE:
            buf.append(getStringValue((Element) n));
            break;
        }
    }
    return buf.toString();
}

Example usage for org.w3c.dom Node ELEMENT_NODE

Introduction

Prototype

Document

Usage