rtt.java

/*
 * Copyright (C) 2014, Leonid Postovski <leonid@postovski.info>
 */

package org.jivesoftware.smackx.packet;

import org.jivesoftware.smack.packet.PacketExtension;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

/**
 * Initial implementation of XEP-0301: RealTime Text
 *
 * @author Leonid Postovski
 */
public class RTTExtension implements PacketExtension {

    private List bodies = new ArrayList();
    private String seq = new String();
    private String event = new String();

    /**
    * Returns the XML element name of the extension sub-packet root element.
    * Always returns "rtt"
    *
    * @return the XML element name of the packet extension.
    */
    public String getElementName() {
        return "rtt";
    }

    /** 
     * Returns the XML namespace of the extension sub-packet root element.
     * According the specification the namespace is always "urn:xmpp:rtt:0"
     *
     * @return the XML namespace of the packet extension.
     */
    public String getNamespace() {
        return "urn:xmpp:rtt:0";
    
    public String getAttributes(String seq, String event ) { //stub
            return "seq='".append(seq).append("' event='").append(event).append("'>");
    }
    
    public void setAttributes(String seq, String event) { //stub
        this.seq=seq; 
        this.event=event;
    }

    /**
     * Returns the XML representation of a RTT extension according the specification.
     * 
     * Usually the XML representation will be inside of a Message XML representation like
     * in the following example:
     * <pre>
     * &lt;to='juliet@capulet.lit' from='romeo@montague.lit/orchard' type='chat' id='a01'&gt;
     *     &lt;rtt xmlns='urn:xmpp:rtt:0' seq='0' event='new'&gt;
     *     &lt;t&gt;Hello, .&lt;/t&gt;
     *     &lt;/rtt&gt;
     * &lt;/message&gt;
     * </pre>
     *
     * 
     */
    public String toXML() {
        StringBuilder buf = new StringBuilder();
        buf.append("<").append(getElementName()).append(" xmlns=\"").append(getNamespace()).append(getAttributes).append(
            "\">");
        // Loop through all the bodies and append them to the string buffer
        for (Iterator i = getBodies(); i.hasNext();) {
            buf.append((String) i.next());
        }
        buf.append("</").append(getElementName()).append(">");
        return buf.toString();
    }