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
  29 #include "AliAnalysisTaskPIDResponse.h"
  30
  31 ClassImp(AliAnalysisTaskPIDResponse)
  32
  33 //______________________________________________________________________________
  34 AliAnalysisTaskPIDResponse::AliAnalysisTaskPIDResponse():
  35 AliAnalysisTaskSE(),
  36 fIsMC(kFALSE),
  37 fOADBPath(),
  38 fPIDResponse(0x0),
  39 fRun(0),
  40 fOldRun(0),
  41 fRecoPass(0)
  42 {
  43   //
  44   // Dummy constructor
  45   //
  46 }
  47
  48 //______________________________________________________________________________
  49 AliAnalysisTaskPIDResponse::AliAnalysisTaskPIDResponse(const char* name):
  50 AliAnalysisTaskSE(name),
  51 fIsMC(kFALSE),
  52 fOADBPath(),
  53 fPIDResponse(0x0),
  54 fRun(0),
  55 fOldRun(0),
  56 fRecoPass(0)
  57 {
  58   //
  59   // Default constructor
  60   //
  61   DefineInput(0,TChain::Class());
  62 }
  63
  64 //______________________________________________________________________________
  65 AliAnalysisTaskPIDResponse::~AliAnalysisTaskPIDResponse()
  66 {
  67   //
  68   // Destructor
  69   //
  70 }
  71
  72 //______________________________________________________________________________
  73 void AliAnalysisTaskPIDResponse::UserCreateOutputObjects()
  74 {
  75   //
  76   // Create the output QA objects
  77   //
  78
  79   AliLog::SetClassDebugLevel("AliAnalysisTaskPIDResponse",10);
  80
  81   //input hander
  82   AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
  83   AliInputEventHandler *inputHandler=dynamic_cast<AliInputEventHandler*>(man->GetInputEventHandler());
  84   if (!inputHandler) AliFatal("Input handler needed");
  85
  86   //pid response object
  87   inputHandler->CreatePIDResponse(fIsMC);
  88   fPIDResponse=inputHandler->GetPIDResponse();
  89   if (!fPIDResponse) AliFatal("PIDResponse object was not created");
  90
  91   fPIDResponse->SetOADBPath(AliAnalysisManager::GetOADBPath());
  92   if (!fOADBPath.IsNull()) fPIDResponse->SetOADBPath(fOADBPath.Data());
  93 }
  94
  95 //______________________________________________________________________________
  96 void AliAnalysisTaskPIDResponse::UserExec(Option_t */*option*/)
  97 {
  98   // Setup the PID response functions and fill the QA histograms
  99   //
 100   AliVEvent *event=InputEvent();
 101   if (!event) return;
 102   fRun=event->GetRunNumber();
 103
 104   if (fRun!=fOldRun){
 105     SetRecoInfo();
 106     fOldRun=fRun;
 107   }
 108
 109   fPIDResponse->InitialiseEvent(event,fRecoPass);
 110 }
 111
 112 //______________________________________________________________________________
 113 void AliAnalysisTaskPIDResponse::SetRecoInfo()
 114 {
 115   //
 116   // Set reconstruction information
 117   //
 118
 119   //reset information
 120   fRecoPass=0;
 121
 122   //Get the current file to check the reconstruction pass (UGLY, but not stored in ESD... )
 123   AliAnalysisManager *mgr=AliAnalysisManager::GetAnalysisManager();
 124   AliVEventHandler *inputHandler=mgr->GetInputEventHandler();
 125   if (!inputHandler) return;
 126
 127   TTree *tree= (TTree*)inputHandler->GetTree();
 128   TFile *file= (TFile*)tree->GetCurrentFile();
 129
 130   if (!file) {
 131     AliError("Current file not found, cannot set reconstruction information");
 132     return;
 133   }
 134
 135   //find pass from file name (UGLY, but not stored in ESD... )
 136   TString fileName(file->GetName());
 137   if (fileName.Contains("pass1") ) {
 138     fRecoPass=1;
 139   } else if (fileName.Contains("pass2") ) {
 140     fRecoPass=2;
 141   } else if (fileName.Contains("pass3") ) {
 142     fRecoPass=3;
 143   }
 144
 145   fPIDResponse->SetCurrentFile(fileName.Data());
 146 }