/*
* 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 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.parser.extwriter.inlinedata;
import java.io.IOException;
import javax.swing.table.TableModel;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;
import org.pentaho.reporting.engine.classic.core.TableDataFactory;
import org.pentaho.reporting.engine.classic.core.modules.parser.data.inlinedata.InlineDataFactoryModule;
import org.pentaho.reporting.engine.classic.core.modules.parser.extwriter.DataFactoryWriteHandler;
import org.pentaho.reporting.engine.classic.core.modules.parser.extwriter.ReportWriterContext;
import org.pentaho.reporting.engine.classic.core.modules.parser.extwriter.ReportWriterException;
import org.pentaho.reporting.engine.classic.core.util.beans.BeanException;
import org.pentaho.reporting.engine.classic.core.util.beans.ConverterRegistry;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
import org.pentaho.reporting.libraries.xmlns.common.AttributeList;
import org.pentaho.reporting.libraries.xmlns.writer.XmlWriter;
import org.pentaho.reporting.libraries.xmlns.writer.XmlWriterSupport;
public class TableDataFactoryWriteHandler implements DataFactoryWriteHandler
{
public TableDataFactoryWriteHandler()
{
}
/**
* Writes a data-source into a XML-stream.
*
* @param reportWriter the writer context that holds all factories.
* @param xmlWriter the XML writer that will receive the generated XML data.
* @param dataFactory the data factory that should be written.
* @throws IOException if any error occured
* @throws ReportWriterException if the data factory cannot be written.
*/
public void write(final ReportWriterContext reportWriter,
final XmlWriter xmlWriter,
final DataFactory dataFactory)
throws IOException, ReportWriterException
{
if (reportWriter == null)
{
throw new NullPointerException();
}
if (dataFactory == null)
{
throw new NullPointerException();
}
if (xmlWriter == null)
{
throw new NullPointerException();
}
try
{
final TableDataFactory tableDataFactory = (TableDataFactory) dataFactory;
final AttributeList rootAttrs = new AttributeList();
if (xmlWriter.isNamespaceDefined(InlineDataFactoryModule.NAMESPACE) == false)
{
rootAttrs.addNamespaceDeclaration("data", InlineDataFactoryModule.NAMESPACE);
}
xmlWriter.writeTag(InlineDataFactoryModule.NAMESPACE, "inline-datasource", rootAttrs, XmlWriterSupport.OPEN);
final String[] tables = tableDataFactory.getQueryNames();
for (int i = 0; i < tables.length; i++)
{
final String tableName = tables[i];
final TableModel tableModel = tableDataFactory.queryData(tableName, null);
xmlWriter.writeTag(InlineDataFactoryModule.NAMESPACE, "inline-table", "name", tableName, XmlWriterSupport.OPEN);
xmlWriter.writeTag(InlineDataFactoryModule.NAMESPACE, "definition", XmlWriterSupport.OPEN);
final Class[] colTypes = new Class[tableModel.getColumnCount()];
for (int col = 0; col < tableModel.getColumnCount(); col += 1)
{
final AttributeList colAttrs = new AttributeList();
colAttrs.setAttribute(InlineDataFactoryModule.NAMESPACE, "name", tableModel.getColumnName(col));
final Class columnClass = tableModel.getColumnClass(col);
if (columnClass == null)
{
colAttrs.setAttribute(InlineDataFactoryModule.NAMESPACE, "type", Object.class.getName());
colTypes[col] = Object.class;
}
else
{
colAttrs.setAttribute(InlineDataFactoryModule.NAMESPACE, "type", columnClass.getName());
colTypes[col] = columnClass;
}
xmlWriter.writeTag(InlineDataFactoryModule.NAMESPACE, "data", colAttrs, XmlWriterSupport.CLOSE);
}
xmlWriter.writeCloseTag(); // definition
for (int row = 0; row < tableModel.getRowCount(); row += 1)
{
xmlWriter.writeTag(InlineDataFactoryModule.NAMESPACE, "row", XmlWriterSupport.OPEN);
for (int col = 0; col < tableModel.getColumnCount(); col += 1)
{
final AttributeList colAttrs = new AttributeList();
final Object value = tableModel.getValueAt(row, col);
if (value == null)
{
colAttrs.setAttribute(InlineDataFactoryModule.NAMESPACE, "null", "true");
xmlWriter.writeTag(InlineDataFactoryModule.NAMESPACE, "data", colAttrs, XmlWriterSupport.CLOSE);
}
else
{
final Class valueClass = value.getClass();
if (ObjectUtilities.equal(colTypes[col], valueClass) == false)
{
colAttrs.setAttribute(InlineDataFactoryModule.NAMESPACE, "type", valueClass.getName());
}
try
{
final String s = ConverterRegistry.toAttributeValue(value);
xmlWriter.writeTag(InlineDataFactoryModule.NAMESPACE, "column", colAttrs, XmlWriterSupport.OPEN);
xmlWriter.writeTextNormalized(s, true);
xmlWriter.writeCloseTag();
}
catch (BeanException e)
{
throw new ReportWriterException("Unable to convert value at (row:" + row + ";column:" +
col + ") into a string." + value.getClass());
}
}
}
xmlWriter.writeCloseTag(); // row
}
xmlWriter.writeCloseTag(); // inline-table
}
xmlWriter.writeCloseTag();
}
catch (ReportDataFactoryException rfe)
{
// should never happen ..
throw new ReportWriterException("Failed to write data-factory", rfe);
}
}
}