/*
* XML 2 Java Binding (X2JB) - the excellent Java tool.
* Copyright 2009, by Richard Opalka.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not see the FSF site:
* http://www.fsf.org/ and search for the LGPL License document there.
*/
package customhandler;
import customhandler.ifaces.TimeAndLocation;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
import org.x2jb.bind.BindingException;
import org.x2jb.bind.spi.handler.AttributeHandler;
import org.x2jb.bind.spi.handler.ElementHandler;
/**
* Custom handler sample
*
* @author <a href="mailto:richard_opalka@yahoo.com">Richard Opalka</a>
*/
public final class Handler implements ElementHandler, AttributeHandler
{
private static final String DATE = "date";
private static final String START_TIME = "start-time";
private static final String END_TIME = "end-time";
private static final String ROOM = "room";
public Handler()
{
super();
}
public Object bind( final Element e, final Class< ? > c )
{
if ( c.equals( TimeAndLocation.class ) )
{
final String date = Handler.getTextContent( e.getElementsByTagName( Handler.DATE ).item( 0 ) );
final String startTime = Handler.getTextContent( e.getElementsByTagName( Handler.START_TIME ).item( 0 ) );
final String endTime = Handler.getTextContent( e.getElementsByTagName( Handler.END_TIME ).item( 0 ) );
final String room = Handler.getTextContent( e.getElementsByTagName( Handler.ROOM ).item( 0 ) );
// preparing return value for TimeAndLocation.getValue() method
final StringBuffer sb = new StringBuffer().append( " is on " ).append( date )
.append( ". It starts at " ).append( startTime ).append( " in " ).append( room )
.append( " room and ends at " ).append( endTime ).append( "." );
// Note that TimeAndLocation interface contains no binding definitions.
// It is not necessary because the interface is created in our custom handler.
return new TimeAndLocation()
{
public String getValue()
{
return sb.toString();
}
};
}
throw new BindingException( "Handler doesn't support '" + c.getName() + "' class" );
}
public Object bind( final Attr a, final Class< ? > c )
{
if ( c.equals( String.class ) )
{
return "My " + a.getValue();
}
throw new BindingException( "Handler doesn't support '" + c.getName() + "' class" );
}
public Object getDefault( final String defaultValue, final Class< ? > c )
{
return null;
}
private static String getTextContent( final Node e )
{
final Node childNode = e.getFirstChild();
if ( ( childNode == null ) || ( !( childNode instanceof Text ) ) )
{
return null;
}
else
{
return ( ( Text ) childNode ).getData();
}
}
}