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

/**
 * Serialise the supplied W3C DOM subtree.
 *
 * @param nodeList The DOM subtree as a NodeList.
 * @param format Format the output.//w  w  w .  j  a  v  a 2  s  .  c  om
 * @param writer The target writer for serialization.
 * @throws DOMException Unable to serialise the DOM.
 */
public static void serialize(NodeList nodeList, boolean format, Writer writer) throws DOMException {

    if (nodeList == null) {
        throw new IllegalArgumentException("null 'subtree' NodeIterator arg in method call.");
    }

    try {
        TransformerFactory factory = TransformerFactory.newInstance();
        Transformer transformer;

        if (format) {
            try {
                factory.setAttribute("indent-number", new Integer(4));
            } catch (Exception e) {
                // Ignore... Xalan may throw on this!!
                // We handle Xalan indentation below (yeuckkk) ...
            }
        }
        transformer = factory.newTransformer();
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        if (format) {
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.setOutputProperty("{http://xml.apache.org/xalan}indent-amount", "4");
        }

        int listLength = nodeList.getLength();

        // Iterate through the Node List.
        for (int i = 0; i < listLength; i++) {
            Node node = nodeList.item(i);

            if (isTextNode(node)) {
                writer.write(node.getNodeValue());
            } else if (node.getNodeType() == Node.ATTRIBUTE_NODE) {
                writer.write(((Attr) node).getValue());
            } else if (node.getNodeType() == Node.ELEMENT_NODE) {
                transformer.transform(new DOMSource(node), new StreamResult(writer));
            }
        }
    } catch (Exception e) {
        DOMException domExcep = new DOMException(DOMException.INVALID_ACCESS_ERR,
                "Unable to serailise DOM subtree.");
        domExcep.initCause(e);
        throw domExcep;
    }
}

From source file:Main.java

/**
 * Used for debuging//from w  w  w .j av  a 2s .co m
 * 
 * @param parent
 *            Element
 * @param out
 *            PrintStream
 * @param deep
 *            boolean
 * @param prefix
 *            String
 */
public static void printChildElements(Element parent, PrintStream out, boolean deep, String prefix) {
    out.print(prefix + "<" + parent.getNodeName());
    NamedNodeMap attrs = parent.getAttributes();
    Node node;
    for (int i = 0; i < attrs.getLength(); i++) {
        node = attrs.item(i);
        out.print(" " + node.getNodeName() + "=\"" + node.getNodeValue() + "\"");
    }
    out.println(">");

    // String data = getElementTextValueDeprecated(parent);
    String data = parent.getNodeValue();
    if (data != null && data.trim().length() > 0) {
        out.println(prefix + "\t" + data);
    }

    data = getElementCDataValue(parent);
    if (data != null && data.trim().length() > 0) {
        out.println(prefix + "\t<![CDATA[" + data + "]]>");
    }

    NodeList nodes = parent.getChildNodes();
    for (int i = 0; i < nodes.getLength(); i++) {
        node = nodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            if (deep) {
                printChildElements((Element) node, out, deep, prefix + "\t");
            } else {
                out.println(prefix + node.getNodeName());
            }
        }
    }

    out.println(prefix + "</" + parent.getNodeName() + ">");
}

From source file:Main.java

public static Object getContent(Element element) {
    NodeList nl = element.getChildNodes();
    StringBuilder content = new StringBuilder();
    for (int i = 0; i < nl.getLength(); i++) {
        Node node = nl.item(i);
        switch (node.getNodeType()) {
        case Node.ELEMENT_NODE:
            return node;
        case Node.CDATA_SECTION_NODE:
        case Node.TEXT_NODE:
            content.append(node.getNodeValue());
            break;
        }//from  w w  w .ja v a  2s  .  c o m
    }
    return content.toString().trim();
}

From source file:Main.java

private static String prettyPrintDom(Node node, String indent, boolean isRoot, boolean escapeStrings) {
    String ret = "";
    switch (node.getNodeType()) {

    case Node.DOCUMENT_NODE:
        // recurse on each child
        NodeList nodes = node.getChildNodes();
        if (nodes != null) {
            for (int i = 0; i < nodes.getLength(); i++) {
                ret += prettyPrintDom(nodes.item(i), indent, isRoot, escapeStrings);
            }//from   w  w w  . jav a2 s.  c o  m
        }
        break;

    case Node.ELEMENT_NODE:
        String name = node.getNodeName();
        ret += indent + "<" + name;
        NamedNodeMap attributes = node.getAttributes();
        for (int i = 0; i < attributes.getLength(); i++) {
            Node current = attributes.item(i);
            ret += " " + current.getNodeName() + "=\""
                    + ((escapeStrings) ? escapeStringForXML(current.getNodeValue()) : current.getNodeValue())
                    + "\"";
        }
        ret += ">";

        // recurse on each child
        NodeList children = node.getChildNodes();
        if (children != null) {
            for (int i = 0; i < children.getLength(); i++) {
                String tmp = prettyPrintDom(children.item(i), indent + ((isRoot) ? "" : BI), false,
                        escapeStrings);
                if (!tmp.replaceAll("[\\s]+", "").equals(""))
                    if (tmp.endsWith("\n"))
                        if (ret.endsWith("\n"))
                            ret += tmp;
                        else
                            ret += "\n" + tmp;
                    else
                        ret += tmp;
            }
        }
        if (ret.endsWith("\n"))
            ret += indent + "</" + name + ">\n";
        else
            ret += "</" + name + ">\n";
        break;

    case Node.TEXT_NODE:
        ret += (escapeStrings) ? escapeStringForXML(node.getNodeValue()) : node.getNodeValue();
        break;

    case Node.COMMENT_NODE:
        ret += "<!-- " + node.getNodeValue() + " -->";
        break;
    }
    return ret;
}

From source file:com.ewcms.common.io.HtmlStringUtil.java

public static String getPureText(Node node) {
    if (!node.hasChildNodes() && isTextNode(node))
        return node.getNodeValue();
    if (isFiltered(node))
        return "";
    if (node.hasAttributes()) {
        Node a = node.getAttributes().getNamedItem("style");
        if (a != null) {
            String style = a.getNodeValue();
            Pattern p = Pattern.compile("display\\s*\\:\\s*none", 2);
            if (p.matcher(style).find())
                return "";
        }/*from  w  w  w .ja  va  2  s  . c o m*/
    }
    StringBuffer sb = new StringBuffer();
    NodeList list = node.getChildNodes();
    for (int i = 0; i < list.getLength(); i++) {
        Node child = list.item(i);
        String name = child.getNodeName();
        sb.append(getPureText(child));
        sb.append(" ");
        if (name.equals("TR") || name.equals("P") || name.equals("DIV"))
            sb.append("\n");
    }

    return sb.toString();
}

From source file:Main.java

/** Get string value of an element.
 *  @param element Element/*from  w w  w  .  j  av a2  s.co  m*/
 *  @return String of the node. Empty string if nothing found.
 */
public static String getString(final Element element) {
    final Node text = element.getFirstChild();
    if (text == null) // <empty /> node
        return "";
    if ((text.getNodeType() == Node.TEXT_NODE || text.getNodeType() == Node.CDATA_SECTION_NODE))
        return text.getNodeValue();
    return "";
}

From source file:Main.java

public static int outputNode(Node outputNode, PrintWriter outputWriter, int curPos) {
    NodeList nodes = outputNode.getChildNodes();
    int curNodeNum;
    if (outputNode.getNodeType() == Node.TEXT_NODE) {
        outputWriter.print(outputNode.getNodeValue());
    } else {/*from w  w w . ja v a 2s .c o  m*/
        if (outputNode.getNodeName().equals("p")) {
            outputWriter.println();
        }

        for (curNodeNum = 0; curNodeNum < nodes.getLength(); curNodeNum++) {
            Node curNode = nodes.item(curNodeNum);
            curPos = outputNode(curNode, outputWriter, curPos);
        }

    }
    return (curPos);
}

From source file:Main.java

private static void getChildrenText(NodeList nodeList, StringBuffer buf) {
    int len = nodeList.getLength();
    for (int i = 0; i < len; ++i) {
        Node child = nodeList.item(i);
        while (child != null) {
            short nodeType = child.getNodeType();
            switch (nodeType) {
            case Node.TEXT_NODE:
                buf.append(child.getNodeValue());
                break;
            case Node.ELEMENT_NODE:
                getChildrenText(child.getChildNodes(), buf);
                break;
            }/*from w w w .  j  a  va 2 s .co  m*/
            child = child.getNextSibling();
        }
    }
}

From source file:Main.java

/**
 * Gets a string value of the given attribute
 * @param node// w  w w.ja v  a 2  s  .  c  o m
 * @param attrName
 * @param defaultValue
 * @return
 */
public static String getValue(Node node, String attrName, String defaultValue) {
    Node tmp;
    if (node == null)
        return defaultValue;

    NamedNodeMap attrs = node.getAttributes();
    if (attrs == null)
        return defaultValue;

    String value = (tmp = attrs.getNamedItem(attrName)) != null ? tmp.getNodeValue() : null;

    if (value == null)
        return defaultValue;

    return value;
}

From source file:Main.java

static String getTextValue(Node node) throws SAXException {
    Node textNode = node.getFirstChild();
    if (textNode == null)
        return "";
    if (textNode.getNodeType() != Node.TEXT_NODE)
        throw new SAXException("No text value found for <" + node.getNodeName() + "> node");
    return textNode.getNodeValue();
}