L1GtTextToRaw.cc

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// this class header
#include "EventFilter/L1GlobalTriggerRawToDigi/interface/L1GtTextToRaw.h"

// system include files
#include <vector>
#include <iostream>
#include <iomanip>

// user include files
#include "DataFormats/FEDRawData/interface/FEDNumbering.h"
#include "DataFormats/FEDRawData/interface/FEDRawDataCollection.h"

#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/MessageLogger/interface/MessageDrop.h"

#include "FWCore/Utilities/interface/typedefs.h"

// constructor(s)
L1GtTextToRaw::L1GtTextToRaw(const edm::ParameterSet& pSet) {
  m_textFileType = pSet.getUntrackedParameter<std::string>("TextFileType", "VmeSpyDump");

  LogDebug("L1GtTextToRaw") << "\nText file type: " << m_textFileType << "\n" << std::endl;

  m_textFileName = pSet.getUntrackedParameter<std::string>("TextFileName", "gtfe.dmp");

  LogDebug("L1GtTextToRaw") << "\nText file name: " << m_textFileName << "\n" << std::endl;

  // event size
  m_rawDataSize = pSet.getUntrackedParameter<int>("RawDataSize");

  LogDebug("L1GtTextToRaw") << "\nRaw data size (units of 8 bits): " << m_rawDataSize
                            << "\n  If negative value, the size is retrieved from the trailer."
                            << "\n"
                            << std::endl;

  // FED Id for GT DAQ record
  // default value defined in DataFormats/FEDRawData/src/FEDNumbering.cc
  // default value: assume the DAQ record is the last GT record
  m_daqGtFedId = pSet.getUntrackedParameter<int>("DaqGtFedId", FEDNumbering::MAXTriggerGTPFEDID);

  LogDebug("L1GtTextToRaw") << "\nFED Id for DAQ GT record: " << m_daqGtFedId << " \n" << std::endl;

  // open test file
  m_textFile.open(m_textFileName.c_str(), std::ios::in);
  if (!m_textFile.good()) {
    throw cms::Exception("NotFound") << "\nError: failed to open text file = " << m_textFileName << "\n" << std::endl;
  }

  //
  produces<FEDRawDataCollection>();
}

// destructor
L1GtTextToRaw::~L1GtTextToRaw() {
  // empty now
}

// member functions

// beginning of job stuff
void L1GtTextToRaw::beginJob() { cleanTextFile(); }

// clean the text file, if needed
void L1GtTextToRaw::cleanTextFile() { LogDebug("L1GtTextToRaw") << "\nCleaning the text file\n" << std::endl; }

// get the size of the record
int L1GtTextToRaw::getDataSize() {
  LogDebug("L1GtTextToRaw") << "\nComputing raw data size with getRecordSize() method." << std::endl;

  int rawDataSize = 0;

  LogDebug("L1GtTextToRaw") << "\nComputed raw data size: " << rawDataSize << std::endl;

  return rawDataSize;
}

// method called to produce the data
void L1GtTextToRaw::produce(edm::Event& iEvent, const edm::EventSetup& evSetup) {
  // get the size of the record

  int rawDataSize = 0;

  if (m_rawDataSize < 0) {
    rawDataSize = getDataSize();
  } else {
    rawDataSize = m_rawDataSize;
  }

  // define new FEDRawDataCollection
  // it contains ALL FEDs in an event
  std::unique_ptr<FEDRawDataCollection> fedRawColl(new FEDRawDataCollection);

  FEDRawData& rawData = fedRawColl->FEDData(m_daqGtFedId);
  // resize, GT raw data record has variable length,
  // depending on active boards (read in GTFE)
  rawData.resize(rawDataSize);

  LogDebug("L1GtTextToRaw") << "\n Size of raw data: " << rawData.size() << "\n" << std::endl;

  // read the text file
  // the file must have one 64 bits per line (usually in hex format)
  // events are separated by empty lines

  std::string lineString;

  cms_uint64_t lineInt = 0ULL;
  int sizeL = sizeof(lineInt);

  int fedBlockSize = 8;  // block size in bits for FedRawData
  int maskBlock = 0xff;  // fedBlockSize and maskBlock must be consistent

  int iLine = 0;

  while (std::getline(m_textFile, lineString)) {
    if (lineString.empty()) {
      break;
    }

    // convert string to int
    std::istringstream iss(lineString);

    iss >> std::hex >> lineInt;

    LogTrace("L1GtTextToRaw") << std::dec << std::setw(4) << std::setfill('0') << iLine << ": " << std::hex
                              << std::setw(sizeL * 2) << lineInt << std::dec << std::setfill(' ') << std::endl;

    // copy data
    for (int j = 0; j < sizeL; j++) {
      char blockContent = (lineInt >> (fedBlockSize * j)) & maskBlock;
      rawData.data()[iLine * sizeL + j] = blockContent;
    }

    ++iLine;
  }

  // put the raw data in the event
  iEvent.put(std::move(fedRawColl));
}

//
void L1GtTextToRaw::endJob() {
  // empty now
}

// static class members