package com.google.buzz.parser.handler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import com.google.buzz.model.BuzzUrl;
/**
* Handler for element: <b>Url</b>
*
* @author roberto.estivill
*/
public class UrlHandler
extends BaseHandler
{
/**
* XML elements handled by this handler
*/
private static final String URLS = "urls";
private static final String VALUE = "value";
private static final String TYPE = "type";
/**
* Position flags
*/
private boolean insideValue = false;
private boolean insideType = false;
/**
* Object to return
*/
private BuzzUrl url;
/**
* Constructor method to create a child handler.
*
* @param parentHandler handler
*/
public UrlHandler( BaseHandler aParent )
{
super( aParent );
url = new BuzzUrl();
}
/**
* @return the created url object
*/
public BuzzUrl getBuzzUrl()
{
return url;
}
/**
* Method to be called every time an xml element starts
*/
public void startElement( String uri, String name, String qName, Attributes attributes )
throws SAXException
{
if ( VALUE.equals( name ) )
{
insideValue = true;
}
else if ( TYPE.equals( name ) )
{
insideType = true;
}
}
/**
* Method to be called every time an xml element ends
*/
public void endElement( String uri, String name, String qName )
throws SAXException
{
if ( VALUE.equals( name ) )
{
insideValue = false;
}
else if ( TYPE.equals( name ) )
{
insideType = false;
}
else if ( URLS.equals( name ) )
{
stopHandlingEvents();
parentHandler.endElement( uri, name, qName );
}
}
/**
* Method to be called between the beginning and the end of the xml elements.
*/
public void characters( char[] ch, int start, int length )
throws SAXException
{
String content = ( new String( ch ).substring( start, start + length ) );
if ( insideValue )
{
url.setValue( content );
}
else if ( insideType )
{
url.setType( content );
}
}
}