Example usage for org.w3c.dom Attr getValue

Introduction

In this page you can find the example usage for org.w3c.dom Attr getValue.

Prototype

public String getValue();

Source Link

Document

On retrieval, the value of the attribute is returned as a string.

Usage

From source file:Main.java

/**
 * Get an array of specific attributes for specific elements
 * in a Node tree. If the node is a Document, use the document
 * element as the starting point.// www .j  av a 2s. co m
 * @param node the top of the tree to search.
 * @param nodeName the element names to include in the search.
 * @param attrName the name of the attributes to include.
 * @return the array of attribute values natching the criteria.
 */
public static String[] getAttributeValues(Node node, String nodeName, String attrName) {
    if (node instanceof Document)
        node = ((Document) node).getDocumentElement();
    if (!(node instanceof Element))
        return new String[0];
    NodeList nodeList = ((Element) node).getElementsByTagName(nodeName);
    ArrayList list = new ArrayList();
    for (int i = 0; i < nodeList.getLength(); i++) {
        Attr attr = ((Element) nodeList.item(i)).getAttributeNode(attrName);
        if (attr != null)
            list.add(attr.getValue());
    }
    String[] values = new String[list.size()];
    return (String[]) list.toArray(values);
}

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From source file:Main.java

/**
 * Extract default values of variables defined in the DOM subtree below node.
 * Default values are used to populate the variableDefs map.  Variables
 * already defined in this map will NOT be modified.
 *
 * @param node root node of DOM subtree to extract default values from.
 * @param variableDefs map which default values will be added to.
 *///from  w w  w  .ja v  a  2  s .  co m
public static void extractVariableDefaults(final Node node, Map<String, String> variableDefs) {
    switch (node.getNodeType()) {
    case Node.ELEMENT_NODE:
        final Element element = (Element) node;
        final NamedNodeMap attrs = element.getAttributes();
        for (int i = 0; i < attrs.getLength(); i++) {
            Attr attr = (Attr) attrs.item(i);
            extractVariableDefaultsFromString(attr.getValue(), variableDefs);
        }
        break;

    case Node.CDATA_SECTION_NODE:
        String content = node.getTextContent();
        extractVariableDefaultsFromString(content, variableDefs);
        break;

    default:
        break;
    }

    final NodeList children = node.getChildNodes();
    for (int childIndex = 0; childIndex < children.getLength(); childIndex++)
        extractVariableDefaults(children.item(childIndex), variableDefs);
}

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From source file:TryDOM.java

static void listNodes(Node node, String indent) {
        String nodeName = node.getNodeName();
        System.out.println(indent + nodeName + " Node, type is " + node.getClass().getName() + ":");
        System.out.println(node);

        if (node instanceof Element && node.hasAttributes()) {
            NamedNodeMap attrs = node.getAttributes();
            for (int i = 0; i < attrs.getLength(); i++) {
                Attr attribute = (Attr) attrs.item(i);
                System.out.println(indent + attribute.getName() + "=" + attribute.getValue());
            }/*from  ww  w  .  ja  v a2  s.c o  m*/
        }
        NodeList list = node.getChildNodes();
        if (list.getLength() > 0) {
            System.out.println(indent + "Child Nodes of " + nodeName + " are:");
            for (int i = 0; i < list.getLength(); i++)
                listNodes(list.item(i), indent + " ");
        }
    }

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From source file:Main.java

/** Helper method - gets a named attribute's value as a <I>String</I>.
   @param pNodeMap The <I>NamedNodeMap</I>.
   @param strName Name of the attribute.
   @return Value of the attribute.// w w  w .j a v a  2  s .  co m
 */
public static String getAttributeString(NamedNodeMap pNodeMap, String strName) throws ClassCastException {
    Attr pAttr = getAttribute(pNodeMap, strName);

    if (null == pAttr)
        return null;

    return pAttr.getValue();
}

---

From source file:Main.java

/**
 * The latest version of XercesJ 2.9 returns an empty string for non existing
 * attributes. To differentiate between empty attributes and non-existing
 * attributes, this method returns a default value for non existing
 * attributes.//  www.ja  va 2  s. co  m
 *
 * @param aElement
 *        the source element to get the attribute from. May not be
 *        <code>null</code>.
 * @param sNamespaceURI
 *        The namespace URI of the attribute to retrieve. May be
 *        <code>null</code>.
 * @param sAttrName
 *        the name of the attribute to query. May not be <code>null</code>.
 * @param sDefault
 *        the value to be returned if the attribute is not present.
 * @return the default value if the attribute does not exists, the string
 *         value otherwise
 */
@Nullable
public static String getAttributeValueNS(@Nonnull final Element aElement, @Nullable final String sNamespaceURI,
        @Nonnull final String sAttrName, @Nullable final String sDefault) {
    final Attr aAttr = aElement.getAttributeNodeNS(sNamespaceURI, sAttrName);
    return aAttr == null ? sDefault : aAttr.getValue();
}

---

From source file:Main.java

public static void printElement(Element e) {
    List lst = getChildrenElement(e);
    if (lst.size() == 0) {
        System.out.print(e.getTagName() + "=");
        String value = getNodeText(e);
        if (value.trim().length() > 0)
            System.out.println(value);
        else/*from  w  w  w  .  ja va  2  s  .  c  o m*/
            System.out.println();

        NamedNodeMap nn = e.getAttributes();
        for (int i = 0; i < nn.getLength(); i++) {
            Attr attr = (Attr) e.getAttributes().item(i);
            System.out.println(attr.getName() + "=" + attr.getValue());
        }
    } else {
        System.out.println(e.getTagName());
        for (int i = 0; i < lst.size(); i++) {
            printElement((Element) lst.get(i));
        }
    }
}

---

From source file:MainClass.java

static void listNodes(Node node) {
    String nodeName = node.getNodeName();

    if (node instanceof Element) {
        if (node.hasAttributes()) {
            NamedNodeMap attrs = node.getAttributes();
            for (int i = 0; i < attrs.getLength(); i++) {
                Attr attribute = (Attr) attrs.item(i); // Get an attribute
                System.out.println(" " + attribute.getName() + "=" + attribute.getValue());
            }//w  w  w  . j  ava2  s.  c  o m
        }
        System.out.println(indent + "<" + nodeName + ">");
    } else if (node instanceof Text) {
        System.out.println(((Text) node).getData());
    } else if (node instanceof DocumentType) {
        System.out.println(getDoctypeString((DocumentType) node));
    }

    indent.append(' ');
    NodeList list = node.getChildNodes();
    if (list.getLength() > 0) {
        for (int i = 0; i < list.getLength(); i++) {
            listNodes(list.item(i));
        }
    }
    System.out.println("</" + nodeName + ">");

}

---

From source file:DOMEdit.java

private static void outputElement(Element node, String indent) {
    System.out.print(indent + "<" + node.getTagName());
    NamedNodeMap nm = node.getAttributes();
    for (int i = 0; i < nm.getLength(); i++) {
        Attr attr = (Attr) nm.item(i);
        System.out.print(" " + attr.getName() + "=\"" + attr.getValue() + "\"");
    }/* w ww  .  ja v a 2s  . c o m*/
    System.out.println(">");
    NodeList list = node.getChildNodes();
    for (int i = 0; i < list.getLength(); i++)
        outputloop(list.item(i), indent + TAB);
    System.out.println(indent + "</" + node.getTagName() + ">");
}

---

From source file:Main.java

/**
 * Identify variables in attribute values and CDATA contents and replace
 * with their values as defined in the variableDefs map. Variables without
 * definitions are left alone.//from  w  w  w.  j  a v  a2 s  .c  om
 *
 * @param node the node to do variable replacement in
 * @param variableDefs map from variable names to values.
 */
public static void replaceVariables(final Node node, Map<String, String> variableDefs) {
    switch (node.getNodeType()) {
    case Node.ELEMENT_NODE:
        final Element element = (Element) node;
        final NamedNodeMap atts = element.getAttributes();
        for (int i = 0; i < atts.getLength(); i++) {
            final Attr attr = (Attr) atts.item(i);
            attr.setNodeValue(replaceVariablesInString(attr.getValue(), variableDefs));
        }
        break;

    case Node.CDATA_SECTION_NODE:
        String content = node.getTextContent();
        node.setNodeValue(replaceVariablesInString(content, variableDefs));
        break;

    default:
        break;
    }

    // process children
    final NodeList children = node.getChildNodes();
    for (int childIndex = 0; childIndex < children.getLength(); childIndex++)
        replaceVariables(children.item(childIndex), variableDefs);
}

---

From source file:Main.java

public static String getAttributeNSOrNull(Element e, QName name) {
    Attr a = e.getAttributeNodeNS(name.getNamespaceURI(), name.getLocalPart());
    if (a == null)
        return null;
    return a.getValue();
}

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