xmpppacketreader.java

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     * processor, for the specified path.
     *
     * @param path is the path to remove the <code>ElementHandler</code> for.
     */
    public void removeHandler(String path) {
        getDispatchHandler().removeHandler(path);
    }

    /**
     * When multiple <code>ElementHandler</code> instances have been
     * registered, this will set a default <code>ElementHandler</code>
     * to be called for any path which does <b>NOT</b> have a handler
     * registered.
     *
     * @param handler is the <code>ElementHandler</code> to be called
     *                by the event based processor.
     */
    public void setDefaultHandler(ElementHandler handler) {
        getDispatchHandler().setDefaultHandler(handler);
    }

    /**
     * Returns the last time a full Document was read or a heartbeat was received. Hearbeats
     * are represented as whitespaces or \n received while a Document is not being parsed.
     *
     * @return the time in milliseconds when the last document or heartbeat was received.
     */
    public long getLastActive() {
        long lastHeartbeat = 0;
        try {
            lastHeartbeat = getXPPParser().getLastHeartbeat();
        }
        catch (XmlPullParserException e) {}
        return lastActive > lastHeartbeat ? lastActive : lastHeartbeat;
    }

    /*
     * DANIELE: Add parse document by string
     */
    public Document parseDocument(String xml) throws DocumentException {
        /*
        // Long way with reuse of DocumentFactory.
        DocumentFactory df = getDocumentFactory();
        SAXReader reader = new SAXReader( df );
        Document document = reader.read( new StringReader( xml );*/

        // Simple way
        // TODO Optimize. Do not create a sax reader for each parsing
        Document document = DocumentHelper.parseText(xml);

        return document;
    }

    // Implementation methods
    //-------------------------------------------------------------------------
    public Document parseDocument() throws DocumentException, IOException, XmlPullParserException {
        DocumentFactory df = getDocumentFactory();
        Document document = df.createDocument();
        Element parent = null;
        XmlPullParser pp = getXPPParser();
        int count = 0;
        while (true) {
            int type = -1;
            type = pp.nextToken();
            switch (type) {
                case XmlPullParser.PROCESSING_INSTRUCTION: {
                    String text = pp.getText();
                    int loc = text.indexOf(" ");
                    if (loc >= 0) {
                        document.addProcessingInstruction(text.substring(0, loc),
                                text.substring(loc + 1));
                    }
                    else {
                        document.addProcessingInstruction(text, "");
                    }
                    break;
                }
                case XmlPullParser.COMMENT: {
                    if (parent != null) {
                        parent.addComment(pp.getText());
                    }
                    else {
                        document.addComment(pp.getText());
                    }
                    break;
                }
                case XmlPullParser.CDSECT: {
                    String text = pp.getText();
                    if (parent != null) {
                        parent.addCDATA(text);
                    }
                    else {
                        if (text.trim().length() > 0) {
                            throw new DocumentException("Cannot have text content outside of the root document");
                        }
                    }
                    break;

                }
                case XmlPullParser.ENTITY_REF: {
                    String text = pp.getText();
                    if (parent != null) {
                        parent.addText(text);
                    }
                    else {
                        if (text.trim().length() > 0) {
                            throw new DocumentException("Cannot have an entityref outside of the root document");
                        }
                    }
                    break;
                }
                case XmlPullParser.END_DOCUMENT: {
                    return document;
                }
                case XmlPullParser.START_TAG: {
                    QName qname = (pp.getPrefix() == null) ? df.createQName(pp.getName(), pp.getNamespace()) : df.createQName(pp.getName(), pp.getPrefix(), pp.getNamespace());
                    Element newElement = null;
                    // Do not include the namespace if this is the start tag of a new packet
                    // This avoids including "jabber:client", "jabber:server" or
                    // "jabber:component:accept"
                    if ("jabber:client".equals(qname.getNamespaceURI()) ||
                            "jabber:server".equals(qname.getNamespaceURI()) ||
                            "jabber:connectionmanager".equals(qname.getNamespaceURI()) ||
                            "jabber:component:accept".equals(qname.getNamespaceURI()) ||
                            "http://jabber.org/protocol/httpbind".equals(qname.getNamespaceURI())) {
                        newElement = df.createElement(pp.getName());
                    }
                    else {
                        newElement = df.createElement(qname);
                    }
                    int nsStart = pp.getNamespaceCount(pp.getDepth() - 1);
                    int nsEnd = pp.getNamespaceCount(pp.getDepth());
                    for (int i = nsStart; i < nsEnd; i++) {
                        if (pp.getNamespacePrefix(i) != null) {
                            newElement
                                    .addNamespace(pp.getNamespacePrefix(i), pp.getNamespaceUri(i));
                        }
                    }
                    for (int i = 0; i < pp.getAttributeCount(); i++) {
                        QName qa = (pp.getAttributePrefix(i) == null) ? df.createQName(pp.getAttributeName(i)) : df.createQName(pp.getAttributeName(i), pp.getAttributePrefix(i), pp.getAttributeNamespace(i));
                        newElement.addAttribute(qa, pp.getAttributeValue(i));
                    }
                    if (parent != null) {
                        parent.add(newElement);
                    }
                    else {
                        document.add(newElement);
                    }
                    parent = newElement;
                    count++;
                    break;
                }
                case XmlPullParser.END_TAG: {
                    if (parent != null) {
                        parent = parent.getParent();
                    }
                    count--;
                    if (count < 1) {
                        // Update the last time a Document was received
                        lastActive = System.currentTimeMillis();
                        return document;
                    }
                    break;
                }
                case XmlPullParser.TEXT: {
                    String text = pp.getText();
                    if (parent != null) {
                        parent.addText(text);
                    }
                    else {
                        if (text.trim().length() > 0) {
                            throw new DocumentException("Cannot have text content outside of the root document");
                        }
                    }
                    break;
                }
                default:
                {
                    ;
                }
            }
        }
    }

    protected DispatchHandler getDispatchHandler() {
        if (dispatchHandler == null) {
            dispatchHandler = new DispatchHandler();
        }
        return dispatchHandler;
    }

    protected void setDispatchHandler(DispatchHandler dispatchHandler) {
        this.dispatchHandler = dispatchHandler;
    }

    /**
     * Factory method to create a Reader from the given InputStream.
     */
    protected Reader createReader(InputStream in) throws IOException {
        return new BufferedReader(new InputStreamReader(in));
    }

    private Reader createReader(InputStream in, String charSet) throws UnsupportedEncodingException {
        return new BufferedReader(new InputStreamReader(in, charSet));
    }
}

/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions and the
 *    following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. The name "DOM4J" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of MetaStuff, Ltd.  For written permission,
 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "DOM4J"
 *    nor may "DOM4J" appear in their names without prior written
 *    permission of MetaStuff, Ltd. DOM4J is a registered
 *    trademark of MetaStuff, Ltd.
 *
 * 5. Due credit should be given to the DOM4J Project -
 *    http://www.dom4j.org
 *
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * $Id: XMPPPacketReader.java 3190 2005-12-12 15:00:46Z gato $
 */