import java.util.Date;
import java.util.EventListener;
import java.util.EventObject;
import java.util.Properties;

interface BatchSubmission
{
   BatchSubmitter create(String farm);
}
interface BatchSubmitter
{
   void setCommand(String command);
   void setArgument(String[] args);
   void setTimeLimit(int time);
   void setPriority(int priority);
   void setStartAt(Date when);
   void setEnvironment(Properties props);
   void addFile(String name, String file);
   void setArchitecture(String architecture);
           
   BatchJob submit() throws BatchSubmissionException;
}
interface BatchJob
{
   Long getID();
   void cancel() throws UnsupportedOperationException;
   void suspend() throws UnsupportedOperationException; 
   void resume() throws UnsupportedOperationException;
   void addBatchListener(BatchListener l);
   void removeBatchListener(BatchListener l);
   
   long getCPUTime();
   long getMemoryUsed();
   
   // Waiting, Running, Finished, Suspended, Aborted
   int getStatus();
   
}
interface BatchListener extends EventListener
{
   void jobSubmitted(BatchEvent e);
   void jobStarted(BatchEvent e);
   void jobStopped(BatchEndEvent e);
   void jobAborted(BatchEvent e);
}
class BatchEvent extends EventObject
{
   BatchEvent(BatchJob source)
   {
      super(source);
   }
   BatchJob getJob()
   {
      return (BatchJob) getSource();
   }
}
class BatchEndEvent extends BatchEvent
{
   long getElapsedTime();
   long getCPUTime();
   long getMemoryUsed();
   int getReturnCode();
   
   Properties getMetaData();
   
   String getLogFile();
}
class BatchSubmissionException extends Exception
{
   BatchSubmissionException(String message)
   {
      super(message);
   }
}