/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.parser.base.common;
import java.beans.IntrospectionException;
import org.pentaho.reporting.engine.classic.core.function.Expression;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.PropertyAttributes;
import org.pentaho.reporting.engine.classic.core.util.beans.BeanUtility;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.SAXException;
public class ExpressionPropertiesReadHandler extends AbstractPropertyXmlReadHandler
{
private BeanUtility beanUtility;
private Expression expression;
private String originalExpressionClass;
private String expressionClass;
public ExpressionPropertiesReadHandler(final Expression expression,
final String originalExpressionClass,
final String expressionClass)
throws IntrospectionException
{
this.originalExpressionClass = originalExpressionClass;
this.expressionClass = expressionClass;
this.beanUtility = new BeanUtility(expression);
this.expression = expression;
}
/**
* Returns the handler for a child element.
*
* @param tagName the tag name.
* @return the handler or null, if the tagname is invalid.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final PropertyAttributes attrs)
throws SAXException
{
if (isSameNamespace(uri) == false)
{
return null;
}
if ("property".equals(tagName))
{
return new ExpressionPropertyReadHandler
(beanUtility, originalExpressionClass, expressionClass, expression.getName());
}
return null;
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
*/
public Object getObject()
{
return this;
}
}