Example usage for org.w3c.dom Node getNodeValue

List of usage examples for org.w3c.dom Node getNodeValue

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Introduction

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

Prototype

public String getNodeValue() throws DOMException;

Source Link

Document

The value of this node, depending on its type; see the table above.

Usage

From source file:Main.java

public static String getAttr(Node node, String name) throws DOMException {

    assert node != null;

    try {/*from   w  w w . ja  va  2 s.  c o m*/
        NamedNodeMap attributes = node.getAttributes();
        if (attributes == null)
            throw new Exception("");

        Node attr = attributes.getNamedItem(name);
        if (attr == null)
            throw new Exception("");

        String value = attr.getNodeValue();
        if (value == null)
            throw new Exception("");

        return value;

    } catch (Exception e) {
        throw new DOMException(DOMException.NOT_FOUND_ERR,
                String.format("attribute %s is missing at node %s", name, node.getNodeName()));
    }

}

From source file:Main.java

public static String convertDOMToString(Node node) {
    StringBuffer sb = new StringBuffer();
    if (node.getNodeType() == Node.TEXT_NODE) {
        sb.append(node.getNodeValue());
    } else {//w  w w . j  ava 2 s. com
        String currentTag = node.getNodeName();
        sb.append('<');
        sb.append(currentTag);
        appendAttributes(node, sb);
        sb.append('>');
        if (node.getNodeValue() != null) {
            sb.append(node.getNodeValue());
        }

        appendChildren(node, sb);

        appendEndTag(sb, currentTag);
    }
    return sb.toString();
}

From source file:Main.java

/**
 * This method will return the content of this particular <code>element</code>.
 * For example,//www .  j a  v a 2s.  c  om
 * <p/>
 * <pre>
 *    <result>something_1</result>
 * </pre>
 * When the {@link org.w3c.dom.Element} <code>&lt;result&gt;</code> is passed in as
 * argument (<code>element</code> to this method, it returns the content of it,
 * namely, <code>something_1</code> in the example above.
 *
 * @return
 */
public static String getContent(Element element) {
    StringBuilder paramValue = new StringBuilder();
    NodeList childNodes = element.getChildNodes();
    for (int j = 0; j < childNodes.getLength(); j++) {
        Node currentNode = childNodes.item(j);
        if (currentNode != null && currentNode.getNodeType() == Node.TEXT_NODE) {
            String val = currentNode.getNodeValue();
            if (val != null) {
                paramValue.append(val.trim());
            }
        }
    }
    return paramValue.toString().trim();
}

From source file:Main.java

public static String getChildNodeValue(String nodeName, Node parent) {

    if (parent == null) {
        return null;
    }//  ww w  .j  av a 2 s . com

    NodeList childNodes = parent.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node node = childNodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            if (node.getNodeName().equals(nodeName)) {
                Node firstChild = node.getFirstChild();
                if ((firstChild != null) && (firstChild.getNodeType() == Node.TEXT_NODE)) {
                    return firstChild.getNodeValue();
                } else {
                    return null;
                }
            }
        }
    }

    return null;
}

From source file:Main.java

/**
 * Output a DOM node including children using a log4j logger.
 * If logger is null it will just output to system out.
 * It will indent by the number of tabs passed in.
 * This method recursively calls itself to output
 * children nodes.//from ww  w  .ja v a 2  s. c  o  m
 * 
 * @param logger
 * @param n
 * @param tabs
 */
public static void outputNode(Logger logger, Node n, int tabs) {
    StringBuffer sb = new StringBuffer();
    for (int i = 0; i < tabs; i++) {
        sb.append("\t");
    }
    sb.append("<" + n.getNodeName());

    if (n.hasAttributes()) {
        NamedNodeMap nnMap = n.getAttributes();
        for (int i = 0; i < nnMap.getLength(); i++) {
            Node att = nnMap.item(i);
            sb.append(" " + att.getNodeName() + "=\"" + att.getNodeValue() + "\"");
        }
    }
    sb.append(">");
    sb = printBuffer(logger, sb, true);

    for (int i = 0; i < tabs + 1; i++) {
        sb.append("\t");
    }
    sb.append(n.getNodeValue());
    sb = printBuffer(logger, sb, true);

    if (n.hasChildNodes()) {
        NodeList nodes = n.getChildNodes();
        for (int i = 0; i < nodes.getLength(); i++) {
            outputNode(nodes.item(i), tabs + 1);
        }
    }
    for (int i = 0; i < tabs; i++) {
        sb.append("\t");
    }
    sb.append("</" + n.getNodeName() + ">");
    sb = printBuffer(logger, sb, true);
}

From source file:Main.java

/**
 * Are elements equal./*w  w w .j  a va2s.  c  o  m*/
 * 
 * @param element1
 *            the element1
 * @param element2
 *            the element2
 * @return true, if successful
 */
public static boolean areElementsEqual(Element element1, Element element2) {
    if (!element1.getTagName().equals(element2.getTagName())) {
        return false;
    }
    NamedNodeMap nodeAttrMap = element1.getAttributes();
    NamedNodeMap pathAttrMap = element2.getAttributes();
    if ((nodeAttrMap == null && pathAttrMap == null)
            || (pathAttrMap.getLength() == 0 && nodeAttrMap.getLength() == 0)) {
        return true;
    } else {
        if (element1.hasAttribute("name") && element2.hasAttribute("name")) {
            if (element1.getAttribute("name").equals(element2.getAttribute("name"))) {
                return true;
            }
        } else if (nodeAttrMap != null && pathAttrMap != null
                && (nodeAttrMap.getLength() == pathAttrMap.getLength())) {
            for (int k = 0; k < nodeAttrMap.getLength(); k++) {
                Node nodeAttr = nodeAttrMap.item(k);
                String nodeAttrName = nodeAttr.getNodeName();
                String nodeAttrValue = nodeAttr.getNodeValue();
                if (element2.hasAttribute(nodeAttrName)
                        && nodeAttrValue.equals(element2.getAttribute(nodeAttrName))) {
                    return true;
                }
            }
        }
    }
    return false;
}

From source file:XMLUtils.java

/**
 * Returns the value of the child node with the given name.
 * @param base the element from where to search.
 * @param name of the element to get.//from  ww w.  j  a  va  2 s.  c  om
 * @return the value of this element.
 */
public static String getChildStringValueForElement(final Element base, final String name) {
    String value = null;
    NodeList nodeList = base.getChildNodes();
    if (nodeList.getLength() > 0) {
        int length = nodeList.getLength();
        for (int i = 0; i < length; i++) {
            Node node = nodeList.item(i);

            // Get an element, create an instance of the element
            if (Node.ELEMENT_NODE == node.getNodeType()) {
                if (name.equals(node.getNodeName())) {
                    // Get value of this child
                    Node elNode = ((Element) node).getFirstChild();
                    if (elNode != null) {
                        value = elNode.getNodeValue();
                        break;
                    }
                }
            }
        }
    }
    return value;
}

From source file:Main.java

private static String docNodeToXMLString(Node root) {
    StringBuilder result = new StringBuilder();
    if (root.getNodeType() == 3) { // TEXT_NODE
        result.append(root.getNodeValue());
    } else {//from ww w  . j  a  va 2  s  . co m
        if (root.getNodeType() != 9) { // not DOCUMENT_NODE
            StringBuffer attrs = new StringBuffer();
            for (int k = 0; k < root.getAttributes().getLength(); ++k) {
                attrs.append(" ").append(root.getAttributes().item(k).getNodeName()).append("=\"")
                        .append(root.getAttributes().item(k).getNodeValue()).append("\" ");
            }
            result.append("<").append(root.getNodeName()).append(" ").append(attrs).append(">");
        } else {
            result.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        }

        NodeList nodes = root.getChildNodes();
        for (int i = 0, j = nodes.getLength(); i < j; i++) {
            Node node = nodes.item(i);
            result.append(docNodeToXMLString(node));
        }

        if (root.getNodeType() != 9) { // not DOCUMENT_NODE
            result.append("</").append(root.getNodeName()).append(">");
        }
    }
    return result.toString();
}

From source file:Main.java

public static String getXpathExpressionValue(Object xprContext, String xpExpression)
        throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();

    XPathExpression xpe = xpath.compile(xpExpression);
    Node valueNode = (Node) xpe.evaluate(xprContext, XPathConstants.NODE);
    String value = null;// w  ww .j a v  a 2 s  .c om
    if (valueNode != null)
        value = valueNode.getNodeValue();
    if (value != null) {
        // if the node is a text node - then we trim and (potentially) look for CDATA
        if (valueNode.getNodeType() == Node.TEXT_NODE) {
            value = value.trim();

            // look for CDATA if we got nothing (stupid whitespace)
            if (value.length() == 0) {
                Node siblingForCDATA = valueNode.getNextSibling();
                if (siblingForCDATA.getNodeType() == Node.CDATA_SECTION_NODE) {
                    value = siblingForCDATA.getNodeValue();
                }
            }
        }
    }

    return value;
}

From source file:Main.java

public static List<String> getValuesFromDocumentByTagAndAttribute(Node parentNode, String tagName,
        String attributeName, String attributeValue) {
    ArrayList<String> values = new ArrayList<String>();

    for (int i = 0; i < parentNode.getChildNodes().getLength(); i++) {
        Node childNode = parentNode.getChildNodes().item(i);

        if (childNode != null) {
            if (childNode.hasAttributes()) {
                for (int j = 0; j < childNode.getAttributes().getLength(); j++) {
                    Node attribute = childNode.getAttributes().item(j);
                    if (attribute.getNodeName().equals(attributeName)
                            && attribute.getNodeValue().equals(attributeValue)) {
                        values.add(childNode.getTextContent().trim());
                    }//from  w  w  w  . j  a  va  2  s  . c  om
                }
            }

            if (childNode.hasChildNodes()) {
                values.addAll(getValuesFromDocumentByTagAndAttribute(childNode, tagName, attributeName,
                        attributeValue));
            }
        }
    }

    return values;
}