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 $

    protected Element unmarshalElement() throws JiBXException, IOException {
        
        // start by creating the actual element
        QName qname = QName.get(m_unmarshalContext.getName(),
            m_unmarshalContext.getPrefix(), m_unmarshalContext.getNamespace());
        Element element = s_factory.createElement(qname);
        
        // add all namespace declarations to element
        int ncount = m_unmarshalContext.getNamespaceCount();
        for (int i = 0; i < ncount; i++) {
            String prefix = m_unmarshalContext.getNamespacePrefix(i);
            String uri = m_unmarshalContext.getNamespaceUri(i);
            element.addNamespace(prefix, uri);
        }
        
        // add all attributes to element
        int acount = m_unmarshalContext.getAttributeCount();
        for (int i = 0; i < acount; i++) {
            String prefix = m_unmarshalContext.getAttributePrefix(i);
            String uri = m_unmarshalContext.getAttributeNamespace(i);
            String name = m_unmarshalContext.getAttributeName(i);
            String value = m_unmarshalContext.getAttributeValue(i);
            qname = QName.get(name, prefix, uri);
            element.addAttribute(qname, value);
        }
        
        // add all content to element
        int event = m_unmarshalContext.nextToken();
        if (event != IXMLReader.END_TAG) {
            unmarshalContent(element.content());
        }
        m_unmarshalContext.nextToken();
        return element;
    }

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                writer.flush();
                stream = null;


                // Get the answer from the server
                try {
                    Element doc = reader.parseDocument().getRootElement();
                    if ("error".equals(doc.getName())) {
                        StreamError error = new StreamError(doc);
                        // Close the connection
                        socket.close();
                        socket = null;
                        // throw the exception with the wrapped error

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     * Returns the packet error, or <tt>null</tt> if there is no packet error.
     *
     * @return the packet error.
     */
    public PacketError getError() {
        Element error = element.element("error");
        if (error != null) {
            return new PacketError(error);
        }
        return null;
    }

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    /**
     * Read the incoming stream until it ends.
     */
    private void readStream() throws Exception {
        while (!shutdown) {
            Element doc = reader.parseDocument().getRootElement();


            if (doc == null) {
                // Stop reading the stream since the server has sent an end of stream element and
                // probably closed the connection
                return;
            }


            Packet packet;
            String tag = doc.getName();
            if ("message".equals(tag)) {
                packet = new Message(doc);
            }
            else if ("presence".equals(tag)) {
                packet = new Presence(doc);

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            component.processPacket(packet);
        }
    }


    private IQ getIQ(Element doc) {
        Element query = doc.element("query");
        if (query != null && "jabber:iq:roster".equals(query.getNamespaceURI())) {
            return new Roster(doc);
        }
        else {
            return new IQ(doc);
        }

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     * Creates a deep copy of this packet extension.
     *
     * @return a deep copy of this packet extension.
     */
    public PacketExtension createCopy() {
        Element copy = element.createCopy();
        docFactory.createDocument().add(copy);
        return new PacketExtension(element);
    }

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            Document doc = saxReader.read(webXML);
            // Find all <servlet> entries to discover name to class mapping.
            List classes = doc.selectNodes("//servlet");
            Map<String, Class> classMap = new HashMap<String, Class>();
            for (int i = 0; i < classes.size(); i++) {
                Element servletElement = (Element)classes.get(i);
                String name = servletElement.element("servlet-name").getTextTrim();
                String className = servletElement.element("servlet-class").getTextTrim();
                classMap.put(name, finder.loadClass(className, component));
            }
            // Find all <servelt-mapping> entries to discover name to URL mapping.
            List names = doc.selectNodes("//servlet-mapping");
            for (int i = 0; i < names.size(); i++) {
                Element nameElement = (Element)names.get(i);
                String name = nameElement.element("servlet-name").getTextTrim();
                String url = nameElement.element("url-pattern").getTextTrim();
                // Register the servlet for the URL.
                Class servletClass = classMap.get(name);
                Object instance = servletClass.newInstance();
                if (instance instanceof HttpServlet) {
                    // Initialize the servlet then add it to the map..

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     * @return the first matching child element, or <tt>null</tt> if there
     *      is no matching child element.
     */
    public Element getChildElement(String name, String namespace) {
        for (Iterator i=element.elementIterator(name); i.hasNext(); ) {
            Element element = (Element)i.next();
            if (element.getNamespaceURI().equals(namespace)) {
                return element;
            }
        }
        return null;
    }

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                    false);
            Document doc = saxReader.read(webXML);
            // Find all <servelt-mapping> entries to discover name to URL mapping.
            List names = doc.selectNodes("//servlet-mapping");
            for (int i = 0; i < names.size(); i++) {
                Element nameElement = (Element)names.get(i);
                String url = nameElement.element("url-pattern").getTextTrim();
                // Destroy the servlet than remove from servlets map.
                HttpServlet servlet = servlets.get(pluginName + url);
                servlet.destroy();
                servlets.remove(pluginName + url);
                servlet = null;

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     * @param variable the variable name of the field to remove.
     * @return true if the field was removed.
     */
    public boolean removeField(String variable) {
        for (Iterator it = element.elementIterator("field"); it.hasNext();) {
            Element field = (Element) it.next();
            String fieldVariable = field.attributeValue("var");
            if (variable.equals(fieldVariable)) {
                return element.remove(field);
            }
        }
        return false;

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