/*
* 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) 2008 - 2009 Pentaho Corporation, . All rights reserved.
*/
package org.pentaho.reporting.engine.classic.extensions.datasources.kettle;
import java.util.ArrayList;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.repository.RepositoryDirectoryInterface;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.reporting.engine.classic.core.ParameterMapping;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;
import org.pentaho.reporting.libraries.resourceloader.ResourceKey;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;
/**
* This class requires access to the system-properties and the local filesystem. I do not believe
* that this code can be safely executed under a restrictive security manager rule.
*
* @author Thomas Morgner
*/
public class KettleTransFromRepositoryProducer extends AbstractKettleTransformationProducer
{
private String directoryName;
private String transformationName;
public KettleTransFromRepositoryProducer(final String repositoryName,
final String directoryName,
final String transformationName,
final String stepName,
final String username,
final String password,
final String[] definedArgumentNames,
final ParameterMapping[] definedVariableNames)
{
super(repositoryName, stepName, username, password, definedArgumentNames, definedVariableNames);
if (directoryName == null)
{
throw new NullPointerException();
}
if (transformationName == null)
{
throw new NullPointerException();
}
this.directoryName = directoryName;
this.transformationName = transformationName;
}
public String getDirectoryName()
{
return directoryName;
}
public String getTransformationName()
{
return transformationName;
}
protected TransMeta loadTransformation(final Repository repository,
final ResourceManager resourceManager,
final ResourceKey contextKey)
throws ReportDataFactoryException, KettleException
{
// Find the directory specified.
final RepositoryDirectoryInterface repositoryDirectory = repository.loadRepositoryDirectoryTree().findDirectory(directoryName);
if (repositoryDirectory == null)
{
throw new ReportDataFactoryException("No such directory in repository: " + directoryName);
}
return repository.loadTransformation(transformationName, repositoryDirectory, null, true, null);
}
public Object getQueryHash(final ResourceManager resourceManager, final ResourceKey resourceKey)
{
final ArrayList<Object> retval = internalGetQueryHash();
retval.add(getDirectoryName());
retval.add(getTransformationName());
return retval;
}
}