/*
* 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) 2006 - 2009 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.designer.core.model.data;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import org.pentaho.reporting.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.ParameterDataRow;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;
import org.pentaho.reporting.engine.classic.core.ReportEnvironment;
import org.pentaho.reporting.engine.classic.core.designtime.AbstractDesignTimeDataSchemaModel;
import org.pentaho.reporting.engine.classic.core.function.Expression;
import org.pentaho.reporting.engine.classic.core.parameters.ParameterDefinitionEntry;
import org.pentaho.reporting.engine.classic.core.wizard.DataSchema;
import org.pentaho.reporting.engine.classic.core.wizard.DataSchemaCompiler;
import org.pentaho.reporting.engine.classic.core.wizard.DataSchemaDefinition;
import org.pentaho.reporting.engine.classic.core.wizard.DataSchemaUtility;
import org.pentaho.reporting.engine.classic.core.wizard.DefaultDataSchema;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;
public class TemporaryDataSchemaModel extends AbstractDesignTimeDataSchemaModel
{
private DataSchema dataSchema;
public TemporaryDataSchemaModel(final MasterReport masterReportElement,
final AbstractReportDefinition parent)
{
super(masterReportElement, parent);
}
protected DataSchemaDefinition createDataSchemaDefinition(final MasterReport masterReportElement)
{
DataSchemaDefinition dataSchemaDefinition = masterReportElement.getDataSchemaDefinition();
if (dataSchemaDefinition == null)
{
return DataSchemaUtility.parseDefaults(masterReportElement.getResourceManager());
}
return dataSchemaDefinition;
}
public Throwable getDataFactoryException()
{
return null;
}
public boolean isValid()
{
return false;
}
public DataSchema getDataSchema()
{
if (dataSchema == null)
{
final ParameterDataRow parameterRow = computeParameterData();
final ParameterDefinitionEntry[] parameterDefinitions = computeParameterDefinitionEntries();
final ResourceManager resourceManager = getMasterReportElement().getResourceManager();
final DataSchemaCompiler dataSchemaCompiler =
new DataSchemaCompiler(getDataSchemaDefinition(), getDataAttributeContext(), resourceManager);
try
{
final TableModel reportData = new DefaultTableModel();
final Expression[] expressions = getReport().getExpressions().getExpressions();
final ReportEnvironment reportEnvironment = getMasterReportElement().getReportEnvironment();
dataSchema = dataSchemaCompiler.compile
(reportData, expressions, parameterRow, parameterDefinitions, reportEnvironment);
}
catch (final ReportDataFactoryException e)
{
dataSchema = new DefaultDataSchema();
}
}
return dataSchema;
}
}