/*
* 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.bundle.writer;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.engine.classic.core.ClassicEngineBoot;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.Element;
import org.pentaho.reporting.engine.classic.core.metadata.ElementMetaData;
import org.pentaho.reporting.engine.classic.core.metadata.ElementType;
import org.pentaho.reporting.libraries.base.config.Configuration;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class BundleWriterUtilities
{
private static final Log logger = LogFactory.getLog(BundleWriterUtilities.class);
private static final String DATA_PREFIX = "org.pentaho.reporting.engine.classic.core.modules.parser.bundle.writer.data-factory-handler.";
private static final String ELEMENT_PREFIX = "org.pentaho.reporting.engine.classic.core.modules.parser.bundle.writer.element-handler.";
private BundleWriterUtilities()
{
}
public static BundleDataFactoryWriterHandler lookupWriteHandler(final DataFactory dataFactory)
{
if (dataFactory == null)
{
throw new NullPointerException();
}
final String configKey = DATA_PREFIX + dataFactory.getClass().getName();
final Configuration globalConfig = ClassicEngineBoot.getInstance().getGlobalConfig();
final String value = globalConfig.getConfigProperty(configKey);
if (value != null)
{
final BundleDataFactoryWriterHandler dataFactoryWriterHandler =
(BundleDataFactoryWriterHandler) ObjectUtilities.loadAndInstantiate
(value, dataFactory.getClass(), BundleDataFactoryWriterHandler.class);
if (dataFactoryWriterHandler == null)
{
logger.warn("Specified data-source write handler implementation could not be loaded: " + value);
}
return dataFactoryWriterHandler;
}
logger.warn("No data-source write handler known for: " + value);
return null;
}
public static BundleDataFactoryWriterHandler lookupWriteHandler(final Element element)
{
if (element == null)
{
throw new NullPointerException();
}
final ElementType type = element.getElementType();
if (type == null)
{
// A legacy element. Cannot handle that this way.
return null;
}
final ElementMetaData metaData = type.getMetaData();
final String configKey = ELEMENT_PREFIX + metaData.getName();
final Configuration globalConfig = ClassicEngineBoot.getInstance().getGlobalConfig();
final String value = globalConfig.getConfigProperty(configKey);
if (value != null)
{
return (BundleDataFactoryWriterHandler) ObjectUtilities.loadAndInstantiate
(value, metaData.getClass(), BundleDataFactoryWriterHandler.class);
}
return null;
}
}