FileChopper.cxx

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//==========================================================
//
// FileChopper.cxx
//
// Authors: Pedro Ochoa
//
// Written: December 20 2007
//
//===========================================================

#include <iostream>
#include "MCNNAnalysis/FileChopper.h"

using std::cout;
using std::endl;

FileChopper::FileChopper(){

  tot_entries=0;
  chop_size=0;
  pieces=0;
  remainder=0;

  cout << "Caution! Emtpy constructor for FileChopper does not chop ANYTHING" << endl;

  chain = new TChain("NtpSt");

}

FileChopper::FileChopper(const char* fname, Int_t sizeofchop){

  chop_size=sizeofchop;

  chain = new TChain("NtpSt");

  Int_t filenum = chain->Add(fname);
  tot_entries = chain->GetEntries();
  remainder=tot_entries % chop_size;
  pieces= tot_entries/chop_size + (bool)remainder;

  cout << "======== FileChopper =================" << endl;
  cout << "Added " << filenum << " file(s) to the FileChopper" << endl;
  cout << "The file(s) has " << tot_entries << " entries in total" << endl;
  cout << "Will divide in " << pieces << " pieces" << endl;

}

FileChopper::~FileChopper(){

  delete chain;

}

//--------------------------------------------------
Int_t FileChopper::GetTotalPieces(){

  return pieces;

}
//--------------------------------------------------
Int_t FileChopper::GetSizeOfPiece(Int_t ii){

  Int_t valuetoret=0;

  if(ii<pieces-1){
    valuetoret=chop_size;
  } else if(ii==pieces-1){
    if(remainder==0){
      valuetoret=chop_size;
    } else{
      valuetoret=remainder;
    }
  } 

  return valuetoret;

}

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