DTROMonitorFilter.cc

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/*
 *  See header file for a description of this class.
 *
 *  $Date: 2012/01/21 14:56:54 $
 *  $Revision: 1.3 $
 *  \author G. Cerminara - INFN Torino
 */

#include "DQM/DTMonitorModule/src/DTROMonitorFilter.h"

#include <FWCore/Framework/interface/Event.h>

#include <FWCore/Framework/interface/ESHandle.h>
#include <FWCore/Framework/interface/EventSetup.h>
#include <FWCore/ParameterSet/interface/ParameterSet.h>

#include <DataFormats/FEDRawData/interface/FEDRawData.h>
#include <DataFormats/FEDRawData/interface/FEDNumbering.h>
#include <EventFilter/DTRawToDigi/interface/DTDDUWords.h>

using namespace edm;


DTROMonitorFilter::DTROMonitorFilter(const edm::ParameterSet& pset) :
  HLTFilter(pset)
{
  inputLabel = pset.getUntrackedParameter<InputTag>("inputLabel",InputTag("source"));
}

DTROMonitorFilter::~DTROMonitorFilter(){}


bool DTROMonitorFilter::hltFilter(edm::Event& event, const edm::EventSetup& setup, trigger::TriggerFilterObjectWithRefs & filterproduct) {
  // get the raw data
  event.getByLabel(inputLabel, rawdata);
  

  // Loop over the DT FEDs
  int FEDIDmin = FEDNumbering::MINDTFEDID;
  int FEDIDMax = FEDNumbering::MAXDTFEDID;

  // Definitions
  static const int wordSize_32 = 4;
  static const int wordSize_64 = 8;

  for (int dduID=FEDIDmin; dduID<=FEDIDMax; ++dduID) {  // loop over all feds
    const FEDRawData& feddata = rawdata->FEDData(dduID);
    const int datasize = feddata.size();    
    if (datasize){ // check the FED payload
      const unsigned int* index32 = reinterpret_cast<const unsigned int*>(feddata.data());
      const int numberOf32Words = datasize/wordSize_32;
      
      const unsigned char* index8 = reinterpret_cast<const unsigned char*>(index32);

      // Check Status Words (1 x ROS)
      for (int rosId = 0; rosId < 12; rosId++ ) {
    int wordIndex8 = numberOf32Words*wordSize_32 - 3*wordSize_64 + rosId; 
    DTDDUFirstStatusWord statusWord(index8[wordIndex8]);
    // check the error bit
    if(statusWord.errorFromROS() != 0) return true;
      }
    }
  }

  // check the event error flag 
  return false;
}