Examples of org.dom4j.Element

org.dom4j.Element

Element interface defines an XML element. An element can have declared namespaces, attributes, child nodes and textual content.

Some of this interface is optional. Some implementations may be read-only and not support being modified. Some implementations may not support the parent relationship and methods such as {@link #getParent}or {@link #getDocument}.
@author James Strachan @version $Revision: 1.47 $

     * @param text the text description of the error.
     * @param lang the language code of the description, or <tt>null</tt> to specify
     *      no language code.
     */
    public void setText(String text, String lang) {
        Element textElement = element.element("text");
        // If text is null, clear the text.
        if (text == null) {
            if (textElement != null) {
                element.remove(textElement);
            }
            return;
        }


        if (textElement == null) {
            textElement = docFactory.createElement("text", ERROR_NAMESPACE);
            if (lang != null) {
                textElement.addAttribute(QName.get("lang", "xml",
                        "http://www.w3.org/XML/1998/namespace"), lang);
            }
            element.add(textElement);
        }
        textElement.setText(text);
    }

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     * is no language code associated with the description text.
     *
     * @return the language code of the text description, if it exists.
     */
    public String getTextLang() {
        Element textElement = element.element("text");
        if (textElement != null) {
            return textElement.attributeValue(QName.get("lang", "xml",
                        "http://www.w3.org/XML/1998/namespace"));
        }
        return null;
    }

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                File webXML = new File(componentDir, "web" + File.separator + "web.xml");
                if (webXML.exists()) {
                    ComponentServlet.registerServlets(this, component, webXML);
                }
                // If there a <adminconsole> section defined, register it.
                Element adminElement = (Element)componentXML.selectSingleNode("/component/adminconsole");
                if (adminElement != null) {
                    // If global images are specified, override their URL.
                    Element imageEl = (Element)adminElement.selectSingleNode(
                            "/component/adminconsole/global/logo-image");
                    if (imageEl != null) {
                        imageEl.setText("components/" + componentDir.getName() + "/" + imageEl.getText());
                    }
                    imageEl = (Element)adminElement.selectSingleNode(
                            "/component/adminconsole/global/login-image");
                    if (imageEl != null) {
                        imageEl.setText("components/" + componentDir.getName() + "/" + imageEl.getText());
                    }
                    // Modify all the URL's in the XML so that they are passed through
                    // the component servlet correctly.
                    /*List urls = adminElement.selectNodes("//@url");
                    for (int i=0; i<urls.size(); i++) {

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     *
     * @param iq the iq packet.
     * @see #createCopy()
     */
    private IQ(IQ iq) {
        Element elementCopy = iq.element.createCopy();
        docFactory.createDocument().add(elementCopy);
        this.element = elementCopy;
        // Copy cached JIDs (for performance reasons)
        this.toJID = iq.toJID;
        this.fromJID = iq.fromJID;

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        try {
            File componentConfig = new File(componentDir, "component.xml");
            if (componentConfig.exists()) {
                SAXReader saxReader = new SAXReader();
                Document componentXML = saxReader.read(componentConfig);
                Element element = (Element)componentXML.selectSingleNode(xpath);
                if (element != null) {
                    return element.getTextTrim();
                }
            }
        }
        catch (Exception e) {
            manager.getLog().error(e);

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            return null;
        }
        else {
            // Search for a child element that is in a different namespace.
            for (int i=0; i<elements.size(); i++) {
                Element element = (Element)elements.get(i);
                String namespace = element.getNamespaceURI();
                if (!namespace.equals("") && !namespace.equals("jabber:client") &&
                        !namespace.equals("jabber:server"))
                {
                    return element;
                }

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     * In most cases, you should only need to set the child element of the IQ.
     *
     * @param extension the PacketExtension whose element will be added to this Packet's element.
     */
    public void addExtension(PacketExtension extension) {
        Element childElement = getChildElement();
        if (childElement == null) {
            throw new IllegalStateException("Cannot add packet extension when child element is null");
        }
        // Add the extension to the child element
        childElement.add(extension.getElement());
    }

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     * @param namespace the child element namespace.
     * @return a PacketExtension on the first element found in this packet for the specified
     *         name and namespace or <tt>null</tt> if none was found.
     */
    public PacketExtension getExtension(String name, String namespace) {
        Element childElement = getChildElement();
        if (childElement == null) {
            return null;
        }
        // Search for extensions in the child element
        List extensions = childElement.elements(QName.get(name, namespace));
        if (!extensions.isEmpty()) {
            Class extensionClass = PacketExtension.getExtensionClass(name, namespace);
            if (extensionClass != null) {
                try {
                    Constructor constructor = extensionClass.getDeclaredConstructor(new Class[]{

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     * @param name the child element name.
     * @param namespace the child element namespace.
     * @return true if a child element was removed.
     */
    public boolean deleteExtension(String name, String namespace) {
        Element childElement = getChildElement();
        if (childElement == null) {
            return false;
        }
        // Delete extensions in the child element
        List extensions = childElement.elements(QName.get(name, namespace));
        if (!extensions.isEmpty()) {
            childElement.remove((Element) extensions.get(0));
            return true;
        }
        return false;
    }

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     *
     * @param presence the presence packet.
     * @see #createCopy() 
     */
    private Presence(Presence presence) {
        Element elementCopy = presence.element.createCopy();
        docFactory.createDocument().add(elementCopy);
        this.element = elementCopy;
        // Copy cached JIDs (for performance reasons)
        this.toJID = presence.toJID;
        this.fromJID = presence.fromJID;

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