/**
SpagoBI - The Business Intelligence Free Platform
Copyright (C) 2005-2009 Engineering Ingegneria Informatica S.p.A.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
**/
package it.eng.spagobi.engines.weka.runtime;
import java.io.File;
import org.apache.log4j.Logger;
import it.eng.spagobi.engines.weka.WekaEngine;
import it.eng.spagobi.engines.weka.WekaEngineInstance;
import it.eng.spagobi.engines.weka.WekaEngineInstanceMonitor;
import it.eng.spagobi.engines.weka.WekaEngineRuntimeException;
import it.eng.spagobi.engines.weka.knowledgeflow.WekaKnowledgeFlow;
import it.eng.spagobi.engines.weka.knowledgeflow.WekaKnowledgeFlowEnv;
import it.eng.spagobi.utilities.assertion.Assert;
import it.eng.spagobi.utilities.engines.IEngineInstance;
import it.eng.spagobi.utilities.threadmanager.WorkManager;
/**
* Questa classe disaccoppia l'attivita di lancio (pre & post processing) dal work effettivamente lanciato.
* In tal modo � possibile avere diversi runner che utilizzano lo stesso work come nel caso del motore talend
* dove il work utilizzato � sempre lo stesso sia per il runner Java che per quello perl
* ed ha l'unica responsibilit� di eseguire un comando tramite System.Ruintime.exec
*
* In questo caso ha poco senso ma viene mantenuto per coerenza strutturale.
*
* @author Andrea Gioia (andrea.gioia@eng.it)
*/
public class WekaKnowledgeFlowRunner implements IEngineInstanceRunner {
private static transient Logger logger = Logger.getLogger(WekaKnowledgeFlowRunner.class);
public void run(IEngineInstance engineInstance) {
Assert.assertNotNull(engineInstance, "Parameter [engineInstance]cannot be null");
if(engineInstance instanceof WekaEngineInstance) {
run( (WekaEngineInstance)engineInstance );
} else {
throw new WekaEngineRuntimeException("Impossible tu run engine instance of type [" + engineInstance.getClass().getName() + "]");
}
}
public void run(WekaEngineInstance engineInstance) {
WekaKnowledgeFlow knowledgeFlow;
WekaKnowledgeFlowEnv knowledgeFlowEnv;
WekaEngineInstanceMonitor wekaEngineInstanceMonitor;
WorkManager wm;
WekaWork wekaWork;
WekaWorkListener wekaWorkListener;
logger.debug("IN");
try {
Assert.assertNotNull(engineInstance, "Parameter [engineInstance] cannot be null");
// wrap ...
knowledgeFlowEnv = new WekaKnowledgeFlowEnv(engineInstance.getEnv());
knowledgeFlow = WekaKnowledgeFlow.load(engineInstance.getTemplate(), knowledgeFlowEnv);
wekaEngineInstanceMonitor = new WekaEngineInstanceMonitor(engineInstance.getEnv());
WekaEngine.getConfig().getEngineOutputFilesDir();
File outputFile = new File(WekaEngine.getConfig().getEngineOutputFilesDir(), "out" + System.currentTimeMillis() + ".txt");
logger.debug("Outputfile set to [" + outputFile + "]");
knowledgeFlowEnv.setOutputFile( outputFile );
//knowledgeFlowEnv.setOutputFile(new File("C:\\ProgramFiles\\apache-tomcat-6.0.18\\resources\\weka\\outputfiles\\pippo.txt"));
// ...and run
wm = new WorkManager();
wekaWork = new WekaWork(knowledgeFlow);
wekaWorkListener = new WekaWorkListener( wekaEngineInstanceMonitor );
wm.run(wekaWork, wekaWorkListener);
} catch (Throwable t) {
throw new RuntimeException("Impossible to execute command in a new thread", t);
} finally {
logger.debug("OUT");
}
}
}