/*! ******************************************************************************
*
* Pentaho Data Integration
*
* Copyright (C) 2002-2017 by Pentaho : http://www.pentaho.com
*
*******************************************************************************
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
package org.pentaho.di.be.ibridge.kettle.dummy;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.row.RowDataUtil;
import org.pentaho.di.trans.Trans;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.step.BaseStep;
import org.pentaho.di.trans.step.StepDataInterface;
import org.pentaho.di.trans.step.StepInterface;
import org.pentaho.di.trans.step.StepMeta;
import org.pentaho.di.trans.step.StepMetaInterface;
/*
* Created on 2-jun-2003
*
*/
public class DummyPlugin extends BaseStep implements StepInterface {
private DummyPluginData data;
private DummyPluginMeta meta;
public DummyPlugin( StepMeta s, StepDataInterface stepDataInterface, int c, TransMeta t, Trans dis ) {
super( s, stepDataInterface, c, t, dis );
}
@Override
public boolean processRow( StepMetaInterface smi, StepDataInterface sdi ) throws KettleException {
meta = (DummyPluginMeta) smi;
data = (DummyPluginData) sdi;
Object[] r = getRow(); // get row, blocks when needed!
if ( r == null ) { // no more input to be expected...
setOutputDone();
return false;
}
if ( first ) {
first = false;
data.outputRowMeta = getInputRowMeta().clone();
meta.getFields( data.outputRowMeta, getStepname(), null, null, this );
}
Object extraValue = meta.getValue().getValueData();
Object[] outputRow = RowDataUtil.addValueData( r, data.outputRowMeta.size() - 1, extraValue );
putRow( data.outputRowMeta, outputRow ); // copy row to possible alternate rowset(s).
if ( checkFeedback( getLinesRead() ) ) {
logBasic( "Linenr " + getLinesRead() ); // Some basic logging every 5000 rows.
}
return true;
}
@Override
public boolean init( StepMetaInterface smi, StepDataInterface sdi ) {
meta = (DummyPluginMeta) smi;
data = (DummyPluginData) sdi;
return super.init( smi, sdi );
}
@Override
public void dispose( StepMetaInterface smi, StepDataInterface sdi ) {
meta = (DummyPluginMeta) smi;
data = (DummyPluginData) sdi;
super.dispose( smi, sdi );
}
//
// Run is were the action happens!
public void run() {
logBasic( "Starting to run..." );
try {
while ( processRow( meta, data ) && !isStopped() ) {
// Process rows
}
} catch ( Exception e ) {
logError( "Unexpected error : " + e.toString() );
logError( Const.getStackTracker( e ) );
setErrors( 1 );
stopAll();
} finally {
dispose( meta, data );
logBasic( "Finished, processing " + getLinesRead() + " rows" );
markStop();
}
}
}