/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.components.table;
import net.sf.jasperreports.engine.JRDatasetRun;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.xml.JRXmlLoader;
import net.sf.jasperreports.engine.xml.XmlLoaderReportContext;
import org.apache.commons.digester.Rule;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.xml.sax.Attributes;
/**
*
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: TableReportContextXmlRule.java 3698 2010-04-07 08:39:26Z lucianc $
*/
public class TableReportContextXmlRule extends Rule
{
private static final Log log = LogFactory.getLog(TableReportContextXmlRule.class);
@Override
public void begin(String namespace, String name, Attributes attributes)
throws Exception
{
JRXmlLoader xmlLoader = getXmlLoader();
TableComponent table = getTableComponent();
JRDatasetRun datasetRun = table.getDatasetRun();
String datasetName = datasetRun == null ? null : datasetRun.getDatasetName();
if (log.isDebugEnabled())
{
log.debug("Pushing report context for dataset name " + datasetName);
}
XmlLoaderReportContext reportContext = new XmlLoaderReportContext(datasetName);
xmlLoader.pushReportContext(reportContext);
}
@Override
public void end(String namespace, String name) throws Exception
{
JRXmlLoader xmlLoader = getXmlLoader();
if (log.isDebugEnabled())
{
log.debug("Popping report context");
}
xmlLoader.popReportContext();
}
protected JRXmlLoader getXmlLoader()
{
return (JRXmlLoader) digester.peek(digester.getCount() - 1);
}
protected TableComponent getTableComponent()
{
TableComponent table = null;
int stackCount = digester.getCount();
for (int idx = 0; idx < stackCount; ++idx)
{
Object stackObject = digester.peek(idx);
if (stackObject instanceof TableComponent)
{
table = (TableComponent) stackObject;
break;
}
}
if (table == null)
{
throw new JRRuntimeException("Could not locate TableComponent object on the digester stack");
}
return table;
}
}