package com.google.buzz.parser.handler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import com.google.buzz.model.BuzzAuthor;
/**
* Handler for element: <b>Author</b>
*
* @author roberto.estivill
*/
public class AuthorHandler
extends BaseHandler
{
/**
* XML elements handled by this handler
*/
private static final String AUTHOR = "author";
private static final String POCO_ID = "poco:id";
private static final String NAME = "name";
private static final String URI = "uri";
private static final String LINK = "link";
private static final String ACTIVITY_OBJECT_TYPE = "activity:object-type";
/**
* Position flags
*/
private boolean insidePocoId = false;
private boolean insideName = false;
private boolean insideUri = false;
private boolean insideActivityObjectType = false;
/**
* Children handlers
*/
private LinkHandler linkHandler;
/**
* Object to return
*/
private BuzzAuthor author;
/**
* Constructor method to create a child handler.
*
* @param parentHandler handler
*/
public AuthorHandler( BaseHandler aParent )
{
super( aParent );
author = new BuzzAuthor();
}
/**
* @return the created author object
*/
public BuzzAuthor getBuzzAuthor()
{
return author;
}
/**
* Method to be called every time an xml element starts
*/
public void startElement( String uri, String name, String qName, Attributes attributes )
throws SAXException
{
if ( POCO_ID.equals( qName ) )
{
insidePocoId = true;
}
else if ( NAME.equals( name ) )
{
insideName = true;
}
else if ( URI.equals( name ) )
{
insideUri = true;
}
else if ( ACTIVITY_OBJECT_TYPE.equals( qName ) )
{
insideActivityObjectType = true;
}
else if ( LINK.equals( name ) )
{
linkHandler = new LinkHandler( this );
linkHandler.startHandlingEvents();
linkHandler.startElement( uri, name, qName, attributes );
}
}
/**
* Method to be called every time an xml element ends
*/
public void endElement( String uri, String name, String qName )
throws SAXException
{
if ( POCO_ID.equals( qName ) )
{
insidePocoId = false;
}
else if ( NAME.equals( name ) )
{
insideName = false;
}
else if ( URI.equals( name ) )
{
insideUri = false;
}
else if ( ACTIVITY_OBJECT_TYPE.equals( qName ) )
{
insideActivityObjectType = false;
}
else if ( LINK.equals( name ) )
{
author.getLinks().add( linkHandler.getBuzzLink() );
}
else if ( AUTHOR.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 ( insidePocoId )
{
author.setId( content );
}
else if ( insideName )
{
author.setName( content );
}
else if ( insideUri )
{
author.setUri( content );
}
else if ( insideActivityObjectType )
{
author.setActivityObjectType( content );
}
}
}