In order to run your driver outside of JAS3, for instance as a batch job or in an IDE, you will need to add a main() method to your driver. In this main method you must create an LCSimLoop object, add any datasets, add your driver, and then run the loop. Here is an example:

ExampleDriver.java
import java.io.File;
import java.io.IOException;
import org.freehep.record.loop.LoopException;
import org.lcsim.util.aida.AIDA;
import hep.physics.vec.VecOp;
import java.util.List;
import org.lcsim.event.EventHeader;
import org.lcsim.event.MCParticle;
import org.lcsim.util.Driver;
import org.lcsim.util.loop.FileList;
import org.lcsim.util.loop.LCIOEventSource;
import org.lcsim.util.loop.LCSimLoop;

/**
 * An example LCSim driver
 * @author tonyj
 */
public class ExampleDriver extends Driver
{
   private static AIDA aida = AIDA.defaultInstance();
   
   protected void process(EventHeader event)
   {
      // Get the list of MCParticles from the event
      List<MCParticle> particles = event.get(MCParticle.class,event.MC_PARTICLES);
      // Histogram the number of particles per event
      aida.histogram1D("nTracks",50,0,200).fill(particles.size());
      // Loop over the particles
      for (MCParticle particle : particles)
      {
         aida.histogram1D("energy",50,0,100).fill(particle.getEnergy());
         aida.histogram1D("cosTheta",50,-1,1).fill(VecOp.cosTheta(particle.getMomentum()));
         aida.histogram1D("phi",50,-Math.PI,Math.PI).fill(VecOp.phi(particle.getMomentum()));
      }
   }
   public static void main(String[] args) throws IOException, LoopException
   {
      LCSimLoop loop = new LCSimLoop();
      loop.setLCIORecordSource(new File("myFile.slcio"));
      // Or to read a stdhep file
      //loop.setStdhepRecordSource(new File("myFile.stdhep"),"sid01");
      // Or to read a list of files
      //loop.setLCIORecordSource(new LCIOEventSource(new FileList(new File("myFileList.filelist"),"My File List")));
      loop.add(new ExampleDriver());
      loop.loop(100); // 0 means loop forever
      loop.dispose();
      
      aida.saveAs("myFile.aida");
   }
}

See Also