src/data_quality/MDQ_IslandLength.cpp

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/* Standard includes */
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <map>
#include <utility>
#include <sstream>
#include <cmath>

/* MIDAS includes */
#include "midas.h"

/* ROOT includes */
#include <TH1.h>
#include <TH2.h>
#include <TDirectory.h>

/* AlCap includes */
#include "TGlobalData.h"
#include "TSetupData.h"
#include "TPulseIsland.h"

using std::string;
using std::map;
using std::vector;
using std::pair;

/*-- Module declaration --------------------------------------------*/
INT  MDQ_IslandLength_init(void);
INT  MDQ_IslandLength(EVENT_HEADER*, void*);
INT  MDQ_IslandLength_eor(INT);

extern HNDLE hDB;
extern TGlobalData* gData;
extern TSetupData* gSetup;

map <std::string, TH1F*> DQ_IslandLength_histograms_map;
map <std::string, TH1F*> DQ_IslandLength_histograms_normalised_map;

extern TH1F* hDQ_TDCCheck_muSc;

ANA_MODULE MDQ_IslandLength_module =
{
        "MDQ_IslandLength",                    /* module name           */
        "Nam Tran",              /* author                */
        MDQ_IslandLength,                      /* event routine         */
        NULL,                          /* BOR routine           */
        MDQ_IslandLength_eor,                          /* EOR routine           */
        MDQ_IslandLength_init,                 /* init routine          */
        NULL,                          /* exit routine          */
        NULL,                          /* parameter structure   */
        0,                             /* structure size        */
        NULL,                          /* initial parameters    */
};

INT MDQ_IslandLength_init()
{
  // See if the DataQuality_LowLevel/ directory already exists
  std::string dir_name("DataQuality_LowLevel/");
  if (!gDirectory->Cd(dir_name.c_str())) {
    gDirectory->mkdir(dir_name.c_str());
    gDirectory->Cd(dir_name.c_str());
  }


  // Create a histogram for each detector
  std::map<std::string, std::string> bank_to_detector_map = gSetup->fBankToDetectorMap;
  for(std::map<std::string, std::string>::iterator mapIter = bank_to_detector_map.begin(); 
      mapIter != bank_to_detector_map.end(); mapIter++) { 

    std::string bankname = mapIter->first;
    std::string detname = gSetup->GetDetectorName(bankname);

    // hDQ_IslandLength_[DetName]_[BankName]
    std::string histname = "hDQ_IslandLength_" + detname + "_" + bankname;
    std::string histtitle = "Length of each TPulseIsland in " + detname;
    TH1F* hDQ_Histogram = new TH1F(histname.c_str(), histtitle.c_str(), 
                                10000, 0, 10000);
    hDQ_Histogram->GetXaxis()->SetTitle("Length [samples]");
    hDQ_Histogram->GetYaxis()->SetTitle("Number of Islands");
    DQ_IslandLength_histograms_map[bankname] = hDQ_Histogram;

    // The normalised histogram
    histname += "_normalised";
    histtitle += " (normalised)";
    TH1F* hDQ_Histogram_Normalised = new TH1F(histname.c_str(), histtitle.c_str(), 10000,0,10000);
    hDQ_Histogram_Normalised->GetXaxis()->SetTitle("Length [samples]");
    std::string yaxislabel = hDQ_Histogram->GetYaxis()->GetTitle();
    yaxislabel += " per TDC muSc Hit";
    hDQ_Histogram_Normalised->GetYaxis()->SetTitle(yaxislabel.c_str());
    DQ_IslandLength_histograms_normalised_map[bankname] = hDQ_Histogram_Normalised;
  }

  gDirectory->Cd("/MidasHists/");
  return SUCCESS;
}

INT MDQ_IslandLength_eor(INT run_number) {

  // Some typedefs
  typedef map<string, vector<TPulseIsland*> > TStringPulseIslandMap;
  typedef pair<string, vector<TPulseIsland*> > TStringPulseIslandPair;
  typedef map<string, vector<TPulseIsland*> >::iterator map_iterator;
  
  // Fetch a reference to the gData structure that stores a map
  // of (bank_name, vector<TPulseIsland*>) pairs
  TStringPulseIslandMap& pulse_islands_map =
    gData->fPulseIslandToChannelMap;

  // Loop over the map and get each bankname, vector pair
  for (map_iterator mapIter = pulse_islands_map.begin(); mapIter != pulse_islands_map.end(); ++mapIter) {

    std::string bankname = mapIter->first;
    std::string detname = gSetup->GetDetectorName(bankname);
      
    // Make sure the histograms exist and then fill them
    if (DQ_IslandLength_histograms_normalised_map.find(bankname) != DQ_IslandLength_histograms_normalised_map.end()) {
      DQ_IslandLength_histograms_normalised_map[bankname]->Scale(1./hDQ_TDCCheck_muSc->GetEntries());
    }
  }

  return SUCCESS;
}


INT MDQ_IslandLength(EVENT_HEADER *pheader, void *pevent)
{
        // Get the event number
        int midas_event_number = pheader->serial_number;

        // Some typedefs
        typedef map<string, vector<TPulseIsland*> > TStringPulseIslandMap;
        typedef pair<string, vector<TPulseIsland*> > TStringPulseIslandPair;
        typedef map<string, vector<TPulseIsland*> >::iterator map_iterator;

        // Fetch a reference to the gData structure that stores a map
        // of (bank_name, vector<TPulseIsland*>) pairs
        TStringPulseIslandMap& pulse_islands_map =
                gData->fPulseIslandToChannelMap;

        // Loop over the map and get each bankname, vector pair
        for (map_iterator mapIter = pulse_islands_map.begin(); 
                        mapIter != pulse_islands_map.end(); ++mapIter) 
        {
          std::string bankname = mapIter->first;
          std::string detname = gSetup->GetDetectorName(bankname);
          std::vector<TPulseIsland*> thePulses = mapIter->second;
          
          // Get the histograms before looping through the pulses
          TH1F* hDQ_IslandLength = DQ_IslandLength_histograms_map[bankname];
          TH1F* hDQ_IslandLength_Norm = DQ_IslandLength_histograms_normalised_map[bankname];
          
          // Loop over the TPulseIslands and plot the histogram
          for (std::vector<TPulseIsland*>::iterator pulseIter = thePulses.begin();
                                pulseIter != thePulses.end(); ++pulseIter) {

            // Make sure the histograms exist and then fill them
            if (DQ_IslandLength_histograms_map.find(bankname) != DQ_IslandLength_histograms_map.end()) 
              { 
                const std::vector<int>& theSamples = (*pulseIter)->GetSamples();
                hDQ_IslandLength->Fill(theSamples.size());
                hDQ_IslandLength_Norm->Fill(theSamples.size());
            }
          }
        }
        return SUCCESS;
}

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