Example usage for org.w3c.dom Element getParentNode

Introduction

In this page you can find the example usage for org.w3c.dom Element getParentNode.

Prototype

public Node getParentNode();

Source Link

Document

The parent of this node.

Usage

From source file:Main.java

/**
 * Returns the XPath to retrieve targetElement from rootElement. rootElement may be null, in this case the XPath starts with and includes
 * the farthest non-null ancestor of targetElement. If rootElement == targetElement, an empty string
 * is returned. /*from  w w  w.ja v a  2  s. c  o  m*/
 * @param includeElementIndex Indicates if the element indices in the form elementName[n] should
 * be included in the XPath. 
 * @param namespacesMap Maps namespace ids to namespace URIs.
 */
public static String getXPath(Element rootElement, Element targetElement, boolean includeElementIndex,
        Map<String, String> namespacesMap) {
    Stack<Element> elementPath = new Stack<Element>();

    // since we need the mapping the other way round, we invert the map
    Map<String, String> namespaceUriToIdMap = new HashMap<String, String>();
    for (Entry<String, String> entry : namespacesMap.entrySet()) {
        namespaceUriToIdMap.put(entry.getValue(), entry.getKey());
    }

    // recursively find all ancestors of targetElement (up to, not including, rootElement) 
    {
        Element currentElement = targetElement;
        while (currentElement != null && currentElement != rootElement) {
            elementPath.push(currentElement);
            Node parent = currentElement.getParentNode();
            if (parent instanceof Element) {
                currentElement = (Element) currentElement.getParentNode();
            } else {
                currentElement = null;
            }
        }
    }

    // construct XPath
    StringBuilder builder = new StringBuilder();
    while (!elementPath.isEmpty()) {
        Element currentElement = elementPath.pop();
        if (builder.length() > 0) {
            // don't include "/" at the beginning
            builder.append("/");
        }

        if (namespacesMap != null) {
            String namespace = currentElement.getNamespaceURI();
            if (namespace != null) {
                namespace = namespaceUriToIdMap.get(namespace);
                builder.append(namespace);
                builder.append(":");
            }
        }
        builder.append(currentElement.getLocalName());
        if (includeElementIndex) {
            int index = getElementIndex(currentElement);
            builder.append("[");
            builder.append(index);
            builder.append("]");
        }
    }
    return builder.toString();
}

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From source file:Main.java

public static String resolveNamespacePrefix(String prefix, Element element) {
    String namespace = null;//from  w w w.  j a  v a 2 s  . c o m

    if ("".equals(prefix)) {
        namespace = element.getAttribute("xmlns");
    } else {
        namespace = element.getAttribute("xmlns:" + prefix);
    }
    if (namespace != null && !"".equals(namespace)) {
        return namespace;
    }

    if (element.getParentNode() instanceof Element) {
        return resolveNamespacePrefix(prefix, (Element) element.getParentNode());
    } else {
        throw new RuntimeException("Cannot resolve prefix " + prefix);
    }
}

---

From source file:Main.java

public static Node createNodeFromPath(Element modelElement, String path) {
    Document document = modelElement.getOwnerDocument();
    StringTokenizer st = new StringTokenizer(path, "/");
    while (st.hasMoreTokens()) {
        String t = st.nextToken();

        if (st.hasMoreTokens()) {
            if (t.equals("..")) {
                modelElement = (Element) modelElement.getParentNode();
            } else {
                Element elm = getFirstChildElement(modelElement, t);
                if (elm == null)
                    modelElement = (Element) modelElement.insertBefore(document.createElement(t),
                            getFirstChildElement(modelElement, t));
                else
                    modelElement = elm;//from w  ww  . j  av  a  2 s.c  o  m
            }
        } else {
            modelElement = (Element) modelElement.insertBefore(document.createElement(t),
                    getFirstChildElement(modelElement, t));
        }
    }

    return modelElement;
}

---

From source file:com.github.alexfalappa.nbspringboot.projects.initializr.InitializrProjectWizardIterator.java

private static void filterProjectXML(FileObject fo, ZipInputStream str, String name) throws IOException {
    try {/*  ww w  .  j av  a  2  s.  c o m*/
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        FileUtil.copy(str, baos);
        Document doc = XMLUtil.parse(new InputSource(new ByteArrayInputStream(baos.toByteArray())), false,
                false, null, null);
        NodeList nl = doc.getDocumentElement().getElementsByTagName("name");
        if (nl != null) {
            for (int i = 0; i < nl.getLength(); i++) {
                Element el = (Element) nl.item(i);
                if (el.getParentNode() != null && "data".equals(el.getParentNode().getNodeName())) {
                    NodeList nl2 = el.getChildNodes();
                    if (nl2.getLength() > 0) {
                        nl2.item(0).setNodeValue(name);
                    }
                    break;
                }
            }
        }
        try (OutputStream out = fo.getOutputStream()) {
            XMLUtil.write(doc, out, "UTF-8");
        }
    } catch (Exception ex) {
        Exceptions.printStackTrace(ex);
        writeFile(str, fo);
    }

}

---

From source file:Main.java

public static void edit(Document doc) {
    Element element = doc.getDocumentElement();
    Element element2 = doc.createElement("newname");
    NamedNodeMap attrs = element.getAttributes();
    for (int i = 0; i < attrs.getLength(); i++) {
        Attr attr2 = (Attr) doc.importNode(attrs.item(i), true);
        element2.getAttributes().setNamedItem(attr2);
    }/*from   w  w  w  .j av  a 2s  .  co  m*/
    while (element.hasChildNodes()) {
        element2.appendChild(element.getFirstChild());
    }
    element.getParentNode().replaceChild(element2, element);
}

---

From source file:com.microsoft.tfs.util.xml.DOMUtils.java

/**
 * Walks the parent chain from the specified element to find the root node.
 *
 * @param descendant// w  w  w .j av a2s . c  o m
 *        The starting point for the parent chain traversal.
 *
 * @return The root node of the document.
 */
public static Element getRootElement(final Element descendant) {
    Element element = descendant;
    while (element.getParentNode() != null && element.getParentNode() instanceof Element) {
        element = (Element) element.getParentNode();
    }
    return element;
}

---

From source file:Main.java

public static String findPrefixForNamespace(Element elm, String namespace) {
    while (elm != null) {
        NamedNodeMap attributes = elm.getAttributes();
        for (int c = 0; c < attributes.getLength(); c++) {
            if (attributes.item(c).getNodeValue().equals(namespace)
                    && attributes.item(c).getNodeName().startsWith("xmlns:")) {
                return attributes.item(c).getNodeName().substring(6);
            }/*from ww w  . j a  v a 2s .  co  m*/
        }

        if (elm.getParentNode().getNodeType() != Node.ELEMENT_NODE)
            break;

        elm = (Element) elm.getParentNode();
    }

    return null;
}

---

From source file:Main.java

/**
 * Returns an element parent node with "name" attribute based on a complex
 * key filter (parent.child.child)//  w w w.j  a va  2  s  .  c o m
 * @param xsdDoc
 * @param xsdKey
 * @return
 */
protected static Element getXsdParentComplexKey(Document xsdDoc, String xsdKey) {
    Element tmpRes = null;
    Element element = null;

    String[] splitStr = xsdKey.split("[.]");

    String topParent = splitStr[0];
    String Parent = splitStr[1];
    String Node = splitStr[2];

    try {
        NodeList allNodes = xsdDoc.getElementsByTagName("*");
        for (int i = 0; i < allNodes.getLength(); i++) {
            element = (Element) allNodes.item(i);
            if (element.getAttribute("name").equals(Node)) {
                element = (Element) element.getParentNode();
                while (!((Element) element).hasAttribute("name")) {
                    element = (Element) element.getParentNode();
                }
                if (element.getAttribute("name").equals(Parent)) {
                    Element pElement = (Element) element.getParentNode();
                    while (!((Element) pElement).hasAttribute("name")) {
                        pElement = (Element) pElement.getParentNode();
                    }
                    if (pElement.getAttribute("name").equals(topParent)) {
                        tmpRes = element;
                    }
                }
            }
        }
        return tmpRes;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

---

From source file:Main.java

/**
 * Remove an element using XPath-quotation expressions. Path must not including
 * the context element, path elements can be separated by / or .,
 * and namespace is NOT supported./* w ww  . j a v  a2  s . c o m*/
 * @param context Element to start the search from, cannot be null.
 * @param path XPath-quotation expression, cannot be null.
 * @return the removed element if there are matches, otherwise
 * return null.
 */
public static Element removeElementByPath(Element context, String path) {
    Element cur = context;
    StringTokenizer tokens = new StringTokenizer(path, "/");
    String name = null;
    while (tokens.hasMoreTokens()) {
        name = tokens.nextToken();
        cur = getElementByPath(cur, name);
        if (cur == null) {
            return null;
        }
    }
    if (name != null) {
        Element parent = (Element) cur.getParentNode();
        return removeChildElement(parent, name);
    }
    return null;
}

---

From source file:DOMUtils.java

/**
 * Given a prefix and a node, return the namespace URI that the prefix
 * has been associated with. This method is useful in resolving the
 * namespace URI of attribute values which are being interpreted as
 * QNames. If prefix is null, this method will return the default
 * namespace./*from w  ww . j  a  v a 2s. co m*/
 *
 * @param context the starting node (looks up recursively from here)
 * @param prefix the prefix to find an xmlns:prefix=uri for
 *
 * @return the namespace URI or null if not found
 */
public static String getNamespaceURIFromPrefix(Node context, String prefix) {
    short nodeType = context.getNodeType();
    Node tempNode = null;

    switch (nodeType) {
    case Node.ATTRIBUTE_NODE: {
        tempNode = ((Attr) context).getOwnerElement();
        break;
    }
    case Node.ELEMENT_NODE: {
        tempNode = context;
        break;
    }
    default: {
        tempNode = context.getParentNode();
        break;
    }
    }

    while (tempNode != null && tempNode.getNodeType() == Node.ELEMENT_NODE) {
        Element tempEl = (Element) tempNode;
        String namespaceURI = (prefix == null) ? getAttribute(tempEl, "xmlns")
                : getAttributeNS(tempEl, NS_URI_XMLNS, prefix);

        if (namespaceURI != null) {
            return namespaceURI;
        } else {
            tempNode = tempEl.getParentNode();
        }
    }

    return null;
}

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