/*
* 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.data.compounddata;
import java.util.ArrayList;
import org.pentaho.reporting.engine.classic.core.CompoundDataFactory;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.DataFactoryReadHandler;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.DataFactoryReadHandlerFactory;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* Creation-Date: 07.04.2006, 17:47:53
*
* @author Thomas Morgner
*/
public class CompoundDataFactoryReadHandler extends AbstractXmlReadHandler
implements DataFactoryReadHandler
{
private ArrayList dataFactories;
private DataFactory dataFactory;
public CompoundDataFactoryReadHandler()
{
dataFactories = new ArrayList();
}
/**
* Returns the handler for a child element.
*
* @param tagName the tag name.
* @param atts the attributes.
* @return the handler or null, if the tagname is invalid.
* @throws SAXException if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final Attributes atts)
throws SAXException
{
final DataFactoryReadHandlerFactory factory = DataFactoryReadHandlerFactory.getInstance();
final DataFactoryReadHandler handler = (DataFactoryReadHandler) factory.getHandler(uri, tagName);
if (handler != null)
{
dataFactories.add(handler);
return handler;
}
return null;
}
/**
* Done parsing.
*
* @throws SAXException if there is a parsing error.
*/
protected void doneParsing() throws SAXException
{
final CompoundDataFactory srdf = new CompoundDataFactory();
for (int i = 0; i < dataFactories.size(); i++)
{
final DataFactoryReadHandler handler = (DataFactoryReadHandler) dataFactories.get(i);
srdf.add(handler.getDataFactory());
}
dataFactory = srdf;
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
* @throws SAXException if there is a parsing error.
*/
public Object getObject() throws SAXException
{
return dataFactory;
}
public DataFactory getDataFactory()
{
return dataFactory;
}
}