Example usage for org.w3c.dom Node getNodeValue

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:Utils.java

/**
 * Starting from a node, find the namespace declaration for a prefix. for a matching namespace
 * declaration.//w ww  .  ja v  a2 s .  co m
 * 
 * @param node search up from here to search for namespace definitions
 * @param searchPrefix the prefix we are searching for
 * @return the namespace if found.
 */
public static String getNamespace(Node node, String searchPrefix) {

    Element el;
    while (!(node instanceof Element)) {
        node = node.getParentNode();
    }
    el = (Element) node;

    NamedNodeMap atts = el.getAttributes();
    for (int i = 0; i < atts.getLength(); i++) {
        Node currentAttribute = atts.item(i);
        String currentLocalName = currentAttribute.getLocalName();
        String currentPrefix = currentAttribute.getPrefix();
        if (searchPrefix.equals(currentLocalName) && XMLNAMESPACE.equals(currentPrefix)) {
            return currentAttribute.getNodeValue();
        } else if (isEmpty(searchPrefix) && XMLNAMESPACE.equals(currentLocalName) && isEmpty(currentPrefix)) {
            return currentAttribute.getNodeValue();
        }
    }

    Node parent = el.getParentNode();
    if (parent instanceof Element) {
        return getNamespace((Element) parent, searchPrefix);
    }

    return null;
}

From source file:Main.java

/**
 * Serializes the given XML tree to string form, including the standard
 * XML header and indentation if desired. This method relies on the
 * serialization API from Apache Xerces, since JAXP has on equivalent.
 * //w w w  .j a  va 2  s  . co  m
 * @param xml
 *            The XML tree to serialize.
 * @param printHeader
 *            True if you want the XML header printed before the XML.
 * @param printIndents
 *            True if you want pretty-printing - child elements will be
 *            indented with symmetry.
 * @return The string representation of the given Node.
 */
public static String toString(final Node xml, final boolean printHeader, final boolean printIndents) {
    final short type = xml.getNodeType();

    if (type == Node.TEXT_NODE)
        return xml.getNodeValue();

    //
    // NOTE: This serialization code is not part of JAXP/DOM - it is 
    //       specific to Xerces and creates a Xerces dependency for 
    //       this class.
    //
    final XMLSerializer serializer = new XMLSerializer();
    serializer.setNamespaces(true);

    final OutputFormat formatter = new OutputFormat();
    formatter.setOmitXMLDeclaration(!printHeader);
    formatter.setIndenting(printIndents);
    serializer.setOutputFormat(formatter);

    final StringWriter writer = new StringWriter();
    serializer.setOutputCharStream(writer);

    try {
        if (type == Node.DOCUMENT_NODE)
            serializer.serialize((Document) xml);
        else
            serializer.serialize((Element) xml);
    }

    //
    // we are using a StringWriter, so this "should never happen". the 
    // StringWriter implementation writes to a StringBuffer, so there's 
    // no file I/O that could fail.
    //
    // if it DOES fail, we re-throw with a more serious error, because 
    // this a very common operation.
    //
    catch (final IOException error) {
        throw new RuntimeException(error.getMessage(), error);
    }

    return writer.toString();
}

From source file:Main.java

public static String getTextChild(Element element) {
    NodeList children = element.getChildNodes();
    String value = null;//from www  .  java  2s  .c o  m
    for (int i = 0; i < children.getLength(); ++i) {
        Node child = children.item(i);
        if (child.getNodeType() == Node.TEXT_NODE) {
            if (null != value) {
                throw new IllegalStateException(
                        "Element " + elementToString(element) + " has more than one text child.");
            } else {
                value = child.getNodeValue();
            }
        }
    }
    return value;
}

From source file:Main.java

public static <T> T loadBean(Node node, Class<T> beanClass)
        throws IntrospectionException, InstantiationException, IllegalAccessException, IllegalArgumentException,
        DOMException, InvocationTargetException {
    T store = beanClass.newInstance();// ww w  .  j a v a  2 s. c o  m

    Map<String, PropertyDescriptor> properties = new HashMap<String, PropertyDescriptor>();
    BeanInfo beanInfo = Introspector.getBeanInfo(beanClass);
    for (PropertyDescriptor property : beanInfo.getPropertyDescriptors()) {
        properties.put(property.getName(), property);
    }

    NamedNodeMap attributes = node.getAttributes();
    for (int i = 0; i < attributes.getLength(); i++) {
        Node attribute = attributes.item(i);
        PropertyDescriptor property = properties.get(attribute.getNodeName());
        if (property != null && property.getPropertyType().equals(String.class)
                && property.getWriteMethod() != null) {
            property.getWriteMethod().invoke(store, attribute.getNodeValue());
        }
    }

    NodeList childNodes = node.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node child = childNodes.item(i);
        PropertyDescriptor property = properties.get(child.getNodeName());
        if (property != null && property.getPropertyType().equals(String.class)
                && property.getWriteMethod() != null) {
            property.getWriteMethod().invoke(store, child.getTextContent());
        }
    }

    return store;
}

From source file:com.connexta.arbitro.attr.xacml3.AttributeSelector.java

/**
 * Creates a new <code>AttributeSelector</code> based on the DOM root of the XML type. Note that
 * as of XACML 1.1 the XPathVersion element is required in any policy that uses a selector, so
 * if the <code>xpathVersion</code> string is null, then this will throw an exception.
 *
 * @param root the root of the DOM tree for the XML AttributeSelectorType XML type
 * @param metaData the meta-data associated with the containing policy
 *
 * @return an <code>AttributeSelector</code>
 *
 * @throws ParsingException if the AttributeSelectorType was invalid
 */// ww w  .j ava 2  s  .  c  o m
public static AttributeSelector getInstance(Node root, PolicyMetaData metaData) throws ParsingException {
    URI category = null;
    URI type = null;
    URI contextSelectorId = null;
    String path = null;
    boolean mustBePresent = false;
    String xpathVersion = metaData.getXPathIdentifier();

    // make sure we were given an xpath version
    if (xpathVersion == null) {
        throw new ParsingException("An XPathVersion is required for " + "any policies that use selectors");
    }

    NamedNodeMap attrs = root.getAttributes();

    try {
        // there's always a DataType attribute
        category = new URI(attrs.getNamedItem("Category").getNodeValue());
    } catch (Exception e) {
        throw new ParsingException("Error parsing required Category " + "attribute in AttributeSelector", e);
    }

    try {
        // there's always a DataType attribute
        type = new URI(attrs.getNamedItem("DataType").getNodeValue());
    } catch (Exception e) {
        throw new ParsingException("Error parsing required DataType " + "attribute in AttributeSelector", e);
    }

    try {
        // there's always a RequestPath
        path = attrs.getNamedItem("Path").getNodeValue();
    } catch (Exception e) {
        throw new ParsingException("Error parsing required " + "Path attribute in " + "AttributeSelector", e);
    }

    try {
        String stringValue = attrs.getNamedItem("MustBePresent").getNodeValue();
        mustBePresent = Boolean.parseBoolean(stringValue);
    } catch (Exception e) {
        throw new ParsingException("Error parsing required MustBePresent attribute " + "in AttributeSelector",
                e);
    }

    try {
        Node node = attrs.getNamedItem("ContextSelectorId");
        if (node != null) {
            contextSelectorId = new URI(node.getNodeValue());
        }
    } catch (Exception e) {
        throw new ParsingException("Error parsing required MustBePresent attribute " + "in AttributeSelector",
                e);
    }

    return new AttributeSelector(category, type, contextSelectorId, path, mustBePresent, xpathVersion);
}

From source file:Main.java

private static String getTextContent(Element element) {
    if (element == null) {
        return null;
    }/*from   w ww .  j  av  a2  s .  co  m*/
    Node textNode = element.getFirstChild();
    if (textNode == null) {
        return "";
    }
    if (textNode.getNodeType() != Node.TEXT_NODE) {
        throw new RuntimeException("Element " + element.getTagName() + "does not have text content");
    }
    return textNode.getNodeValue();
}

From source file:Main.java

public static int getAllChildrenString(Node start, int offset) {
    //String spacers  = "                                                         ";
    String tagOpen = "<";
    String tagClose = ">";
    String tagEndOpen = "</";
    String tagEndClose = ">";
    String tagName = start.getNodeName();
    String tagValue = (start.getNodeValue() == null ? "" : start.getNodeValue());

    if (start.getNodeName().trim().equals("#text")) {
        tagOpen = "";
        tagClose = "";
        tagName = "";
        tagEndOpen = "";
        tagEndClose = "";
    }//from w ww  .  ja va2s  .c om
    if (offset == 0)
        HTMLString = "";
    else {
        HTMLString += //spacers.substring(0, offset) +
                tagOpen + tagName;

        if (start.getNodeType() == Element.ELEMENT_NODE) {
            NamedNodeMap startAttr = start.getAttributes();
            for (int i = 0; i < startAttr.getLength(); i++) {
                Node attr = startAttr.item(i);
                HTMLString += " " + attr.getNodeName() + "=\"" + attr.getNodeValue() + "\"";
            }
        }
        HTMLString += tagClose + tagValue;
    }

    for (Node child = start.getFirstChild(); child != null; child = child.getNextSibling()) {
        getAllChildrenString(child, offset + 1);
    }

    if (offset > 0 && tagName.length() > 0) {
        HTMLString += //spacers.substring(0, offset) +
                tagEndOpen + tagName + tagEndClose;
    }

    return ++offset;
}

From source file:net.openkoncept.vroom.VroomUtilities.java

/**
 * <p>//from w w  w  .  j  a va2 s .c o  m
 * This method returns the attribute value of an XML node.
 * </p>
 *
 * @param node     - The XML node
 * @param attrName - Attribute name
 * @return - Value of XML attribute
 */
public static String getXmlAttributeValue(Node node, String attrName) {

    if (node == null) {
        return null;
    }

    Node attrNode = node.getAttributes().getNamedItem(attrName);
    if (attrNode == null) {
        return null;
    }

    return attrNode.getNodeValue().trim();

}

From source file:Main.java

public static int getAllChildren(Node start, int offset) {
    //String spacers  = "                                                         ";
    String tagOpen = "<";
    String tagClose = ">";
    String tagEndOpen = "</";
    String tagEndClose = ">";
    String tagName = start.getNodeName();
    String tagValue = (start.getNodeValue() == null ? "" : start.getNodeValue());

    if (start.getNodeName().trim().equals("#text")) {
        tagOpen = "";
        tagClose = "";
        tagName = "";
        tagEndOpen = "";
        tagEndClose = "";
    } else if (start.getNodeName().trim().equals("#comment")) {
        tagOpen = "<!--";
        tagClose = "";
        tagName = "";
        tagEndOpen = "";
        tagEndClose = "-->";
    }/*from ww w  .j a  va 2s.com*/
    if (offset == 0)
        HTMLString = "";

    HTMLString += tagOpen + tagName;

    if (start.getNodeType() == Element.ELEMENT_NODE) {
        NamedNodeMap startAttr = start.getAttributes();
        for (int i = 0; i < startAttr.getLength(); i++) {
            Node attr = startAttr.item(i);
            HTMLString += " " + attr.getNodeName() + "=\"" + attr.getNodeValue() + "\"";
        }
    }
    HTMLString += tagClose + tagValue;

    for (Node child = start.getFirstChild(); child != null; child = child.getNextSibling()) {
        getAllChildren(child, offset + 1);
    }

    //if (offset > 0 && tagName.length() > 0) {
    if (tagName.length() > 0 || start.getNodeName().trim().equals("#comment")) {
        HTMLString += tagEndOpen + tagName + tagEndClose;
    }

    return ++offset;
}