JPrintLargestOverlay.cc

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#include <string>
#include <iostream>
#include <iomanip>

#include "JDAQ/JDAQEventIO.hh"

#include "JSupport/JSingleFileScanner.hh"
#include "JSupport/JSupport.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to find the largest event in a file.
 * \author lnauta
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;
  using namespace KM3NETDAQ;

  JSingleFileScanner<JDAQEvent> inputFile;
  int             debug;

  try { 

    JParser<> zap("Example program to find the largest event in a file.");

    zap['f'] = make_field(inputFile);
    zap['d'] = make_field(debug)               = 1;

    zap(argc, argv);
  }
  catch(const exception& error) {
    FATAL(error.what() << endl);
  }


  unsigned int overlays = 0;
  counter_type index    = -1;

  while (inputFile.hasNext()) {

    STATUS("event: " << setw(10) << inputFile.getCounter() << '\r'); DEBUG(endl);

    const JDAQEvent* event = inputFile.next();

    if (event->getOverlays() > overlays) {
      overlays = event->getOverlays();
      index    = inputFile.getCounter() - 1;
    }

  }
  STATUS(endl);

  cout << "Largest number of overlays " << overlays << endl;
  cout << "JConvert -f " << inputFile.getFilename() << " -n " << index << ":1" << endl;
}