Changes due to new PROOF (Marian)

[u/mrichter/AliRoot.git] / TPC / TPCcalib / AliTPCSelectorTracks.cxx

// The class definition in esdClus.h has been generated automatically
// by the ROOT utility TTree::MakeSelector(). This class is derived
// from the ROOT class TSelector. For more information on the TSelector
// framework see $ROOTSYS/README/README.SELECTOR or the ROOT User Manual.

// The following methods are defined in this file:
//    Begin():        called everytime a loop on the tree starts,
//                    a convenient place to create your histograms.
//    SlaveBegin():   called after Begin(), when on PROOF called only on the
//                    slave servers.
//    Process():      called for each event, in this function you decide what
//                    to read and fill your histograms.
//    SlaveTerminate: called at the end of the loop on the tree, when on PROOF
//                    called only on the slave servers.
//    Terminate():    called at the end of the loop on the tree,
//                    a convenient place to draw/fit your histograms.
//
// To use this file, try the following session on your Tree T:
//
// Root > T->Process("esdClus.C")
// Root > T->Process("esdClus.C","some options")
// Root > T->Process("esdClus.C+")
//
// Modification log:
// 05/11/2006 HH  Correct for large pads (outer sectors) in amplitude plots

#include "TSystem.h"
#include <TPDGCode.h>
#include <TStyle.h>
#include "TCint.h"
#include "TList.h"
#include "TH1I.h"
#include "TChain.h"
//
#include "AliTracker.h"
#include "AliMagF.h"
//
#include "AliESD.h"
#include "AliESDEvent.h"
#include "AliESDtrack.h"
#include "AliESDfriend.h"
#include "AliESDfriendTrack.h"
#include "AliTPCseed.h"
#include "AliTPCclusterMI.h"
//
//
#include "AliTPCcalibTracks.h"
#include "AliTPCcalibTracksGain.h"

#include "AliTPCSelectorESD.h" 
#include "AliTPCSelectorTracks.h" 


const char* AliTPCSelectorTracks::fgkOutputFileName = "Output.root";


AliTPCSelectorTracks::AliTPCSelectorTracks(TTree *) : 
  AliTPCSelectorESD(),
  fInit(kFALSE),
  fCalibTracks(0),
  fCalibTracksGain(0)
{
   // 
   // 
   // 
   G__SetCatchException(0);
}   

AliTPCSelectorTracks::~AliTPCSelectorTracks(){
  //
  //
  //
}


void AliTPCSelectorTracks::InitComponent(){
  //
  // Init Components
  //
  //
  // USER -COMPONENT definder part
  // 
  // before calling the process function, two objects have to be added to the chain/tree:
  // clusterParam, the cluster parametrization and cuts, a AliTPCcalibTracksCuts object
  // they have to be added in the following manner:
  //    chain->GetUserInfo()->AddLast(clusterParam);
  //    chain->GetUserInfo()->AddLast(cuts);
  //
  if (!fChain){
    printf("EROOR - chain not initialized\n");
  }
 
 AliTPCClusterParam *clusterParam  = (AliTPCClusterParam*)fChain->GetUserInfo()->FindObject("AliTPCClusterParam");
  if (clusterParam != 0) printf("clusterParam found in fChain! \n");
  AliTPCcalibTracksCuts *cuts = (AliTPCcalibTracksCuts*)fChain->GetUserInfo()->FindObject("calibTracksCuts");
  if (cuts != 0) printf("cuts found in fChain! \n");
  
  fCalibTracks = new AliTPCcalibTracks("calibTracks", "Resolution calibration object for tracks", clusterParam, cuts);
   fOutput->AddLast(fCalibTracks);
   
   fCalibTracksGain = new AliTPCcalibTracksGain("calibTracksGain", "Gain calibration object for tracks");
   fOutput->AddLast(fCalibTracksGain);
   fInit=kTRUE;
}

void AliTPCSelectorTracks::SlaveBegin(TTree * tree)
{
   // The SlaveBegin() function is called after the Begin() function.
   // When running with PROOF SlaveBegin() is called on each slave server.
   // The tree argument is deprecated (on PROOF 0 is passed).
  
  AliTPCSelectorESD::SlaveBegin(tree);
 
  printf(" ***** SlaveBegin ***** \n");
}


Int_t AliTPCSelectorTracks::ProcessIn(Long64_t entry)
{
  //
  //
  //
  if (!fInit) InitComponent();
  Int_t status = ReadEvent(entry);
  if (status<0) return status; 
  Int_t ntracks = (fESD) ? fESD->GetNumberOfTracks() : fESDevent->GetNumberOfTracks();     
  //
  //
  // USER code to go here
  //
  AliTPCseed *seed;
  
  for (Int_t tr = 0; tr < ntracks; tr++){ 
    AliESDtrack *esdTrack = fESD ? (AliESDtrack*) fESD->GetTrack(tr): (AliESDtrack*) fESDevent->GetTrack(tr);
    AliESDfriendTrack *friendtrack = (AliESDfriendTrack*) esdTrack->GetFriendTrack();
    seed = 0; 
    TObject *cobject=0;
    for (Int_t i=0;;i++){
      cobject = friendtrack->GetCalibObject(i);
      if (!cobject) break;
      seed = dynamic_cast<AliTPCseed*>(cobject);
      if (seed) break;
    }

    if (seed) { 
      fNClusters->Fill(seed->GetNumberOfClusters());
      //
      //fCalibTracks->Process(seed, esdTrack);   // analysis is done in fCalibTracks
      //if (!AliTPCcalibTracksGain::AcceptTrack(seed)) {/*cerr << "not accepted" << endl;*/ continue; }
      fCalibTracksGain->AddTrack(seed);
    }
  }
  CleanESD();
  return 0;
  
}


void AliTPCSelectorTracks::Terminate()
{
   // The Terminate() function is the last function to be called during
   // a query. It always runs on the client, it can be used to present
   // the results graphically or save the results to file.
   

   if (!fOutput) return;
   
   // evaluate all fitters before saving them, because it doesn't seem to be possible
   // to evaluate a TLinearFitter after it has been loaded from a root file
  //  for (UInt_t iSegment = 0; iSegment < 36; iSegment++) {
//       for (UInt_t iPadType = 0; iPadType < 3; iPadType++) {
//          for (UInt_t iFitType = 0; iFitType < 3; iFitType++)
//             fCalibTracksGain->Evaluate(iSegment, iPadType, iFitType);
//       }
//    }   
   TFile file(fgkOutputFileName, "recreate");
   fOutput->Write();
   file.Close();
   printf("Successfully written file to '%s'.", fgkOutputFileName);


   Info("Destructor","Destuctor");
   delete fCalibTracksGain;
   delete fCalibTracks;
//   printf ("Terminate... \n");
//   if (!fOutput) return;
//   TFile file("Output.root","recreate");
//   printf("fOutput contains the following: \n");
//   fOutput->Print();
//   printf("Trying to write the file 'Output.root'... \n");
//   fOutput->Write();
//   file.Close();  
  
}