package org.lcsim.plugin;
   
   import org.freehep.record.loop.RecordLoop;
   import org.freehep.util.FreeHEPLookup;
   import org.lcsim.event.EventHeader;
   
   /**
    * The methods in this class are made available to scripts via the <code>lcsim</code>
    * variable.
   * @author tonyj
   */
  public class LCSim
  {
     private final FreeHEPLookup lookup;
     /** Creates a new instance of LCSim */
     LCSim(FreeHEPLookup lookup)
     {
        this.lookup = lookup;
     }
     /**
      * Get the current event.
      * @return The event, or <code>null</code> if event not available
      */
     public EventHeader getCurrentEvent()
     {
        try
        {
           RecordLoop loop = (RecordLoop) lookup.lookup(RecordLoop.class); 
           Object event = loop.getRecordSource().getCurrentRecord();
           return (event instanceof EventHeader) ? (EventHeader) event : null;
        }
        catch (Exception x)
        {
           return null;
        }
     }
  }