/*
* 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.wizard;
import java.util.Iterator;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.engine.classic.core.ClassicEngineBoot;
import org.pentaho.reporting.libraries.resourceloader.Resource;
import org.pentaho.reporting.libraries.resourceloader.ResourceException;
import org.pentaho.reporting.libraries.resourceloader.ResourceKeyCreationException;
import org.pentaho.reporting.libraries.resourceloader.ResourceLoadingException;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;
import org.pentaho.reporting.libraries.base.config.Configuration;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class DataSchemaUtility
{
private static final Log logger = LogFactory.getLog(DataSchemaUtility.class);
private DataSchemaUtility()
{
}
public static DataSchemaDefinition parseDefaults(final ResourceManager manager)
{
if (manager == null)
{
throw new NullPointerException();
}
final Configuration configuration = ClassicEngineBoot.getInstance().getGlobalConfig();
final Iterator sources = configuration.findPropertyKeys
("org.pentaho.reporting.engine.classic.core.DataSchemaDefinition");
final DefaultDataSchemaDefinition definition = new DefaultDataSchemaDefinition();
while (sources.hasNext())
{
final Object sourceKey = configuration.getConfigProperty((String) sources.next());
try
{
logger.debug ("Loading data-schema " + sourceKey);
final Resource resource = manager.createDirectly(sourceKey, DataSchemaDefinition.class);
final DataSchemaDefinition fromResource = (DataSchemaDefinition) resource.getResource();
definition.merge(fromResource);
}
catch (ResourceKeyCreationException e)
{
// silently ignored .. the key was invalid
logger.debug ("Unable to create key for schema " + sourceKey,e );
}
catch (ResourceLoadingException e)
{
// silently ignored .. the file could not be loaded (physical layer error)
logger.debug ("Unable to load data for key for schema " + sourceKey, e);
}
catch (ResourceException e)
{
logger.debug("Unable to load data-schema definition", e);
}
}
return definition;
}
}