ANALYSIS/AliAnalysisTaskPIDResponse.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id: AliAnalysisTaskPIDResponse.cxx 43811 2010-09-23 14:13:31Z wiechula $ */
  17 #include <TFile.h>
  18 #include <TChain.h>
  19
  20 #include <AliAnalysisManager.h>
  21 #include <AliInputEventHandler.h>
  22 #include <AliVEventHandler.h>
  23 #include <AliVEvent.h>
  24 #include <AliVParticle.h>
  25 #include <AliVTrack.h>
  26 #include <AliLog.h>
  27 #include <AliPIDResponse.h>
  28 #include <AliESDpid.h>
  29
  30 #include "AliAnalysisTaskPIDResponse.h"
  31
  32 ClassImp(AliAnalysisTaskPIDResponse)
  33
  34 //______________________________________________________________________________
  35 AliAnalysisTaskPIDResponse::AliAnalysisTaskPIDResponse():
  36 AliAnalysisTaskSE(),
  37 fIsMC(kFALSE),
  38 fCachePID(kTRUE),
  39 fOADBPath(),
  40 fPIDResponse(0x0),
  41 fRun(0),
  42 fOldRun(0),
  43 fRecoPass(0),
  44 fIsTunedOnData(kFALSE),
  45 fRecoPassTuned(0)
  46 {
  47   //
  48   // Dummy constructor
  49   //
  50 }
  51
  52 //______________________________________________________________________________
  53 AliAnalysisTaskPIDResponse::AliAnalysisTaskPIDResponse(const char* name):
  54 AliAnalysisTaskSE(name),
  55 fIsMC(kFALSE),
  56 fCachePID(kTRUE),
  57 fOADBPath(),
  58 fPIDResponse(0x0),
  59 fRun(0),
  60 fOldRun(0),
  61 fRecoPass(0),
  62 fIsTunedOnData(kFALSE),
  63 fRecoPassTuned(0)
  64 {
  65   //
  66   // Default constructor
  67   //
  68   DefineInput(0,TChain::Class());
  69 }
  70
  71 //______________________________________________________________________________
  72 AliAnalysisTaskPIDResponse::~AliAnalysisTaskPIDResponse()
  73 {
  74   //
  75   // Destructor
  76   //
  77 }
  78
  79 //______________________________________________________________________________
  80 void AliAnalysisTaskPIDResponse::UserCreateOutputObjects()
  81 {
  82   //
  83   // Create the output QA objects
  84   //
  85
  86   AliLog::SetClassDebugLevel("AliAnalysisTaskPIDResponse",10);
  87
  88   //input hander
  89   AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
  90   AliInputEventHandler *inputHandler=dynamic_cast<AliInputEventHandler*>(man->GetInputEventHandler());
  91   if (!inputHandler) AliFatal("Input handler needed");
  92
  93   //pid response object
  94   inputHandler->CreatePIDResponse(fIsMC);
  95   fPIDResponse=inputHandler->GetPIDResponse();
  96   if (!fPIDResponse) AliFatal("PIDResponse object was not created");
  97
  98   fPIDResponse->SetOADBPath(AliAnalysisManager::GetOADBPath());
  99   if (!fOADBPath.IsNull()) fPIDResponse->SetOADBPath(fOADBPath.Data());
 100
 101   if(fIsTunedOnData) fPIDResponse->SetTunedOnData(kTRUE,fRecoPassTuned);
 102 }
 103
 104 //______________________________________________________________________________
 105 void AliAnalysisTaskPIDResponse::UserExec(Option_t */*option*/)
 106 {
 107   // Setup the PID response functions and fill the QA histograms
 108   //
 109   AliVEvent *event=InputEvent();
 110   if (!event) return;
 111   fRun=event->GetRunNumber();
 112
 113   if (fRun!=fOldRun){
 114     SetRecoInfo();
 115     fOldRun=fRun;
 116   }
 117
 118   fPIDResponse->InitialiseEvent(event,fRecoPass);
 119   AliESDpid *pidresp = dynamic_cast<AliESDpid*>(fPIDResponse);
 120   if(pidresp && AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler()){
 121       pidresp->SetEventHandler(AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
 122   }
 123   //create and attach transient PID object
 124   if (fCachePID) {
 125     fPIDResponse->FillTrackDetectorPID();
 126   }
 127 }
 128
 129 //______________________________________________________________________________
 130 void AliAnalysisTaskPIDResponse::SetRecoInfo()
 131 {
 132   //
 133   // Set reconstruction information
 134   //
 135
 136   //reset information
 137   fRecoPass=0;
 138
 139   //Get the current file to check the reconstruction pass (UGLY, but not stored in ESD... )
 140   AliAnalysisManager *mgr=AliAnalysisManager::GetAnalysisManager();
 141   AliVEventHandler *inputHandler=mgr->GetInputEventHandler();
 142   if (!inputHandler) return;
 143
 144   TTree *tree= (TTree*)inputHandler->GetTree();
 145   TFile *file= (TFile*)tree->GetCurrentFile();
 146
 147   if (!file) {
 148     AliError("Current file not found, cannot set reconstruction information");
 149     return;
 150   }
 151
 152   //find pass from file name (UGLY, but not stored in ESD... )
 153   TString fileName(file->GetName());
 154   if (fileName.Contains("pass1") ) {
 155     fRecoPass=1;
 156   } else if (fileName.Contains("pass2") ) {
 157     fRecoPass=2;
 158   } else if (fileName.Contains("pass3") ) {
 159     fRecoPass=3;
 160   } else if (fileName.Contains("pass4") ) {
 161     fRecoPass=4;
 162   } else if (fileName.Contains("pass5") ) {
 163     fRecoPass=5;
 164   }
 165
 166   fPIDResponse->SetCurrentFile(fileName.Data());
 167 }