/**
* ========================================
* JFreeReport : a free Java report library
* ========================================
*
* Project Info: http://reporting.pentaho.org/
*
* (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
*
* This library 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 library 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
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: BeanPropertyLookupParser.java 6659 2008-12-02 15:35:06Z tmorgner $
* ------------
* (C) Copyright 2000-2005, by Object Refinery Limited.
* (C) Copyright 2005-2007, by Pentaho Corporation.
*/
package org.jfree.report.util.beans;
import org.jfree.report.util.CSVTokenizer;
import org.jfree.report.util.PropertyLookupParser;
public abstract class BeanPropertyLookupParser extends PropertyLookupParser
{
public BeanPropertyLookupParser ()
{
}
/**
*
* @param name
* @return
*/
protected abstract Object performInitialLookup (String name);
protected String lookupVariable (final String entity)
{
// first, split the entity into separate strings (separator is '.').
final CSVTokenizer tokenizer = new CSVTokenizer(entity, ".");
if (tokenizer.hasMoreTokens())
{
final String name = tokenizer.nextToken();
final Object base = performInitialLookup(name);
try
{
if (tokenizer.hasMoreTokens())
{
return continueLookupVariable(tokenizer, base);
}
else
{
return ConverterRegistry.toAttributeValue(base);
}
}
catch (BeanException e)
{
return entity;
}
}
return entity;
}
private static String continueLookupVariable (final CSVTokenizer tokenizer,
final Object parent)
throws BeanException
{
if (tokenizer.hasMoreTokens())
{
final String name = tokenizer.nextToken();
final Object base = ConverterRegistry.toPropertyValue(name, parent.getClass());
if (tokenizer.hasMoreTokens())
{
return continueLookupVariable(tokenizer, base);
}
else
{
return ConverterRegistry.toAttributeValue(base);
}
}
return null;
}
}