/*
* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package net.java.sip.communicator.impl.protocol.jabber.extensions.whiteboard;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.xmlpull.v1.XmlPullParser;
/**
* This class parses incoming messages and extracts the whiteboard parameters
* from the raw XML messages.
*
* @author Julien Waechter
*/
public class WhiteboardObjectJabberProvider
implements PacketExtensionProvider
{
/**
* Creates a new WhiteboardObjectJabberProvider.
* ProviderManager requires that every PacketExtensionProvider has a public,
* no-argument constructor
*/
public WhiteboardObjectJabberProvider ()
{}
/**
* Parses a WhiteboardPacketExtension packet (extension sub-packet).
*
* @param parser an XML parser.
* @return a new WhiteboardPacketExtension instance.
* @throws Exception if an error occurs parsing the XML.
*/
public PacketExtension parseExtension (XmlPullParser parser)
throws Exception
{
PacketExtension extension = null;
StringBuilder sb = new StringBuilder ();
boolean done = false;
while (!done)
{
int eventType = parser.next ();
if (eventType == XmlPullParser.START_TAG
&& !parser.getName ().equals (
WhiteboardObjectPacketExtension.ELEMENT_NAME)
&& !parser.getName ().equals (
WhiteboardSessionPacketExtension.ELEMENT_NAME))
{
sb.append (parser.getText ());
}
else if (eventType == XmlPullParser.TEXT)
{
sb.append (parser.getText ());
}
else if (eventType == XmlPullParser.END_TAG
&& parser.getName ().equals ("image"))
{
sb.append (parser.getText ());
}
else if (eventType == XmlPullParser.END_TAG
&& parser.getName ().equals ("text"))
{
sb.append (parser.getText ());
}
else if (eventType == XmlPullParser.END_TAG
&& parser.getName ().equals (
WhiteboardObjectPacketExtension.ELEMENT_NAME))
{
extension = new WhiteboardObjectPacketExtension(sb.toString ());
done = true;
}
else if (eventType == XmlPullParser.END_TAG
&& parser.getName ().equals (
WhiteboardSessionPacketExtension.ELEMENT_NAME))
{
extension = new WhiteboardSessionPacketExtension(sb.toString ());
done = true;
}
}
return extension;
}
}