/*!
* 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) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.ui.datasources.kettle;
import java.util.ArrayList;
import javax.swing.JComponent;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.xml.XMLHandler;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.reporting.engine.classic.core.DataFactoryContext;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;
import org.pentaho.reporting.engine.classic.extensions.datasources.kettle.AbstractKettleTransformationProducer;
import org.pentaho.reporting.engine.classic.extensions.datasources.kettle.DocumentHelper;
import org.pentaho.reporting.engine.classic.extensions.datasources.kettle.EmbeddedKettleTransformationProducer;
import org.pentaho.reporting.engine.classic.extensions.datasources.kettle.KettleTransformationProducer;
import org.pentaho.reporting.ui.datasources.kettle.embedded.KettleParameterInfo;
import org.pentaho.reporting.ui.datasources.kettle.embedded.XulDialogHelper;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
public class EmbeddedKettleQueryEntry extends KettleQueryEntry
{
private class ValidatePropertyBinding implements ChangeListener
{
private boolean recursionPrevention;
public void stateChanged(final ChangeEvent e)
{
if (recursionPrevention)
{
return;
}
try
{
recursionPrevention = true;
setValidated(dialogHelper.validate());
}
finally
{
recursionPrevention = false;
}
}
}
private static final Log logger = LogFactory.getLog(EmbeddedKettleQueryEntry.class);
private static final String AUTO_GENERATED_PARAMETER = "AUTO.GENERATED.PARAMETER";
private String pluginId;
private XulDialogHelper dialogHelper;
private EmbeddedKettleQueryEntry(String name, String pluginId,
XulDialogHelper dialogHelper) throws KettleException
{
super(name);
this.pluginId = pluginId;
this.dialogHelper = dialogHelper;
this.dialogHelper.addChangeListener(new ValidatePropertyBinding());
}
public static EmbeddedKettleQueryEntry createFromExisting(String name,
EmbeddedKettleTransformationProducer producer,
DataFactoryContext dataFactoryContext)
throws KettleException, ReportDataFactoryException
{
XulDialogHelper dialogHelper = new XulDialogHelper(producer.loadTransformation(dataFactoryContext));
EmbeddedKettleQueryEntry entry = new EmbeddedKettleQueryEntry(name, producer.getPluginId(), dialogHelper);
entry.setArguments(producer.getArguments());
entry.setParameters(producer.getParameter());
entry.setStopOnErrors(producer.isStopOnError());
return entry;
}
public static EmbeddedKettleQueryEntry createFromTemplate(String name,
String pluginId)
throws KettleException
{
XulDialogHelper dialogHelper = new XulDialogHelper(loadTemplate(pluginId));
return new EmbeddedKettleQueryEntry(name, pluginId, dialogHelper);
}
private static TransMeta loadTemplate(String pluginId) throws KettleException
{
final Document document = DocumentHelper.loadDocumentFromPlugin(pluginId);
final Node node = XMLHandler.getSubNode(document, TransMeta.XML_TAG);
final TransMeta meta = new TransMeta();
meta.loadXML(node, null, true, null, null);
return meta;
}
@Override
public boolean validate()
{
return dialogHelper.validate();
}
@Override
public KettleTransformationProducer createProducer()
throws KettleException
{
EmbeddedKettleTransformationProducer p =
new EmbeddedKettleTransformationProducer(getArguments(), getParameters(), pluginId, dialogHelper.getRawData());
p.setStopOnError(isStopOnErrors());
return p;
}
public JComponent createUI() throws ReportDataFactoryException
{
return dialogHelper.createEditor();
}
public void clear()
{
dialogHelper.clear();
}
protected AbstractKettleTransformationProducer loadTransformation(final DataFactoryContext context)
throws KettleException
{
return new EmbeddedKettleTransformationProducer(getArguments(), getParameters(), pluginId, dialogHelper.getRawData());
}
public KettleParameterInfo[] getDeclaredParameters(final DataFactoryContext context) throws KettleException, ReportDataFactoryException
{
KettleParameterInfo[] declaredParameters = super.getDeclaredParameters(context);
ArrayList<KettleParameterInfo> infos = new ArrayList<KettleParameterInfo>();
for (KettleParameterInfo declaredParameter : declaredParameters)
{
if (AUTO_GENERATED_PARAMETER.equalsIgnoreCase(declaredParameter.getDescription()))
{
infos.add(declaredParameter);
}
}
return infos.toArray(new KettleParameterInfo[infos.size()]);
}
}