EcalPnGraphDumperModule

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/**
 * \file EcalPnGraphDumperModule.h 
 * module dumping TGraph with 50 data frames from Pn Diodes
 *   
 * 
 * \author N. Amapane - S. Argiro'
 * \author G. Franzoni
 * \author J. Haupt
 *
 */

#include <FWCore/Framework/interface/one/EDAnalyzer.h>
#include <FWCore/Framework/interface/Event.h>
#include <FWCore/Framework/interface/MakerMacros.h>
#include <DataFormats/EcalDigi/interface/EcalDigiCollections.h>
#include <DataFormats/EcalDetId/interface/EcalDetIdCollections.h>

#include <DataFormats/EcalDigi/interface/EcalTriggerPrimitiveDigi.h>
#include <DataFormats/EcalDigi/interface/EcalTriggerPrimitiveSample.h>

#include <iostream>
#include <vector>

#include "TFile.h"
#include "TGraph.h"

class EcalPnGraphDumperModule : public edm::one::EDAnalyzer<> {
public:
  EcalPnGraphDumperModule(const edm::ParameterSet& ps);
  ~EcalPnGraphDumperModule();

  std::string intToString(int num);

  void analyze(const edm::Event& e, const edm::EventSetup& c);

protected:
  int verbosity;
  int eventCounter;

  int ieb_id;
  int first_Pn;

  bool inputIsOk;

  std::string fileName;

  std::vector<int> listChannels;
  std::vector<int> listAllChannels;
  std::vector<int> listPns;
  std::vector<int> listAllPns;

  int numPn;

  int abscissa[50];
  int ordinate[50];

  std::vector<TGraph> graphs;

  TFile* root_file;
};

EcalPnGraphDumperModule::EcalPnGraphDumperModule(const edm::ParameterSet& ps) {
  fileName = ps.getUntrackedParameter<std::string>("fileName", std::string("toto"));

  ieb_id = ps.getUntrackedParameter<int>("ieb_id", 1);
  first_Pn = 0;

  listPns = ps.getUntrackedParameter<std::vector<int> >("listPns", std::vector<int>());

  numPn = ps.getUntrackedParameter<int>("numPn", 9);

  // consistency checks checks
  inputIsOk = true;

  std::vector<int>::iterator intIter;

  for (intIter = listPns.begin(); intIter != listPns.end(); intIter++) {
    if (((*intIter) < 1) || (10 < (*intIter))) {
      std::cout << "[EcalPnGraphDumperModule] pn number : " << (*intIter) << " found in listPns. "
                << " Valid range is 1-10. Returning." << std::endl;
      inputIsOk = false;
      return;
    }
    if (!first_Pn)
      first_Pn = (*intIter);
  }

  // setting the abcissa array once for all
  for (int i = 0; i < 50; i++)
    abscissa[i] = i;

  // local event counter (in general different from LV1)
  eventCounter = 0;
}

EcalPnGraphDumperModule::~EcalPnGraphDumperModule() {
  fileName += (std::string("_iEB") + intToString(ieb_id));
  fileName += (std::string("_Pn") + intToString(first_Pn));
  fileName += ".graph.root";

  root_file = new TFile(fileName.c_str(), "RECREATE");
  std::vector<TGraph>::iterator gr_it;
  for (gr_it = graphs.begin(); gr_it != graphs.end(); gr_it++)
    (*gr_it).Write();
  root_file->Close();
}

std::string EcalPnGraphDumperModule::intToString(int num) {
  //
  // outputs the number into the string stream and then flushes
  // the buffer (makes sure the output is put into the stream)
  //
  std::ostringstream myStream;  //creates an ostringstream object
  myStream << num << std::flush;

  return (myStream.str());  //returns the string form of the stringstream object
}

void EcalPnGraphDumperModule::analyze(const edm::Event& e, const edm::EventSetup& c) {
  eventCounter++;
  if (!inputIsOk)
    return;

  // retrieving crystal PN diodes from Event
  edm::Handle<EcalPnDiodeDigiCollection> PNs;
  e.getByLabel("ecalEBunpacker", PNs);

  // getting the list of all the Pns which will be dumped on TGraph
  // - listPns is the list as given by the user
  // - numPn is number of Pn's for which graphs are required
  std::vector<int>::iterator pn_it;
  for (pn_it = listPns.begin(); pn_it != listPns.end(); pn_it++) {
    int ipn = (*pn_it);
    int hpn = (numPn / 2);

    for (int u = (-hpn); u <= hpn; u++) {
      int ipn_c = ipn + u;
      if (ipn_c < 1 || ipn_c > 10)
        continue;
      listAllPns.push_back(ipn_c);
    }
  }

  // loop over all the available PN digis and make graphs for those which have been chosen by the user
  for (EcalPnDiodeDigiCollection::const_iterator pnItr = PNs->begin(); pnItr != PNs->end(); ++pnItr) {
    {
      int ipn = (*pnItr).id().iPnId();
      int ieb = EcalPnDiodeDetId((*pnItr).id()).iDCCId();

      // selecting based on DCCId
      if (ieb != ieb_id)
        return;

      // selecting desired Pns only
      std::vector<int>::iterator iPnIter;
      iPnIter = find(listAllPns.begin(), listAllPns.end(), ipn);
      if (iPnIter == listAllPns.end()) {
        continue;
      }

      for (int i = 0; i < (*pnItr).size() && i < 50; ++i) {
        ordinate[i] = (*pnItr).sample(i).adc();
      }

      TGraph oneGraph(50, abscissa, ordinate);
      std::string title;
      title = "Graph_ev" + intToString(eventCounter) + "_ipn" + intToString(ipn);
      oneGraph.SetTitle(title.c_str());
      oneGraph.SetName(title.c_str());
      graphs.push_back(oneGraph);

    }  // loop in crystals
  }
}

DEFINE_FWK_MODULE(EcalPnGraphDumperModule);