ANALYSIS/AliAnalysisTaskPIDResponse.cxx

   1 /**************************************************************************
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   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
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  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 #include <AliProdInfo.h>
  30
  31 #include "AliAnalysisTaskPIDResponse.h"
  32
  33 ClassImp(AliAnalysisTaskPIDResponse)
  34
  35 //______________________________________________________________________________
  36 AliAnalysisTaskPIDResponse::AliAnalysisTaskPIDResponse():
  37 AliAnalysisTaskSE(),
  38 fIsMC(kFALSE),
  39 fCachePID(kTRUE),
  40 fOADBPath(),
  41 fSpecialDetResponse(),
  42 fPIDResponse(0x0),
  43 fRun(-1),
  44 fOldRun(-1),
  45 fRecoPass(0),
  46 fIsTunedOnData(kFALSE),
  47 fTunedOnDataMask(0),
  48 fRecoPassTuned(0),
  49 fUseTPCEtaCorrection(kFALSE),                 //TODO: In future, default kTRUE
  50 fUseTPCMultiplicityCorrection(kFALSE),        //TODO: In future, default kTRUE
  51 fUserDataRecoPass(-1)
  52 {
  53   //
  54   // Dummy constructor
  55   //
  56 }
  57
  58 //______________________________________________________________________________
  59 AliAnalysisTaskPIDResponse::AliAnalysisTaskPIDResponse(const char* name):
  60 AliAnalysisTaskSE(name),
  61 fIsMC(kFALSE),
  62 fCachePID(kTRUE),
  63 fOADBPath(),
  64 fSpecialDetResponse(),
  65 fPIDResponse(0x0),
  66 fRun(-1),
  67 fOldRun(-1),
  68 fRecoPass(0),
  69 fIsTunedOnData(kFALSE),
  70 fTunedOnDataMask(0),
  71 fRecoPassTuned(0),
  72 fUseTPCEtaCorrection(kFALSE),//TODO: In future, default kTRUE
  73 fUseTPCMultiplicityCorrection(kFALSE),//TODO: In future, default kTRUE
  74 fUserDataRecoPass(-1)
  75 {
  76   //
  77   // Default constructor
  78   //
  79   DefineInput(0,TChain::Class());
  80 }
  81
  82 //______________________________________________________________________________
  83 AliAnalysisTaskPIDResponse::~AliAnalysisTaskPIDResponse()
  84 {
  85   //
  86   // Destructor
  87   //
  88 }
  89
  90 //______________________________________________________________________________
  91 void AliAnalysisTaskPIDResponse::UserCreateOutputObjects()
  92 {
  93   //
  94   // Create the output QA objects
  95   //
  96
  97   AliLog::SetClassDebugLevel("AliAnalysisTaskPIDResponse",10);
  98
  99   //input hander
 100   AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
 101   AliInputEventHandler *inputHandler=dynamic_cast<AliInputEventHandler*>(man->GetInputEventHandler());
 102   if (!inputHandler) AliFatal("Input handler needed");
 103
 104   //pid response object
 105   inputHandler->CreatePIDResponse(fIsMC);
 106   fPIDResponse=inputHandler->GetPIDResponse();
 107   if (!fPIDResponse) AliFatal("PIDResponse object was not created");
 108
 109   fPIDResponse->SetOADBPath(AliAnalysisManager::GetOADBPath());
 110   fPIDResponse->SetCachePID(fCachePID);
 111   if (!fOADBPath.IsNull()) fPIDResponse->SetOADBPath(fOADBPath.Data());
 112
 113   if(fIsTunedOnData) fPIDResponse->SetTunedOnData(kTRUE,fRecoPassTuned);
 114   if(fTunedOnDataMask != 0) fPIDResponse->SetTunedOnDataMask(fTunedOnDataMask);
 115
 116   if (!fSpecialDetResponse.IsNull()){
 117     TObjArray *arr=fSpecialDetResponse.Tokenize("; ");
 118     for (Int_t i=0; i<arr->GetEntriesFast();++i){
 119       TString resp(arr->At(i)->GetName());
 120       if (resp.BeginsWith("TPC:")){
 121         resp.ReplaceAll("TPC:","");
 122         fPIDResponse->SetCustomTPCpidResponse(resp.Data());
 123         AliInfo(Form("Setting custom TPC response file: '%s'",resp.Data()));
 124       }
 125     }
 126     delete arr;
 127   }
 128 }
 129
 130 //______________________________________________________________________________
 131 void AliAnalysisTaskPIDResponse::UserExec(Option_t */*option*/)
 132 {
 133   // Setup the PID response functions and fill the QA histograms
 134   //
 135   AliVEvent *event=InputEvent();
 136   if (!event) return;
 137   fRun=event->GetRunNumber();
 138
 139   if (fRun!=fOldRun){
 140     SetRecoInfo();
 141     fOldRun=fRun;
 142
 143     fPIDResponse->SetUseTPCEtaCorrection(fUseTPCEtaCorrection);
 144     fPIDResponse->SetUseTPCMultiplicityCorrection(fUseTPCMultiplicityCorrection);
 145   }
 146
 147   fPIDResponse->InitialiseEvent(event,fRecoPass);
 148   AliESDpid *pidresp = dynamic_cast<AliESDpid*>(fPIDResponse);
 149   if(pidresp && AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler()){
 150       pidresp->SetEventHandler(AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
 151   }
 152   //create and attach transient PID object
 153 //   if (fCachePID) {
 154 //     fPIDResponse->FillTrackDetectorPID();
 155 //   }
 156 }
 157
 158 //______________________________________________________________________________
 159 void AliAnalysisTaskPIDResponse::SetRecoInfo()
 160 {
 161   //
 162   // Set reconstruction information
 163   //
 164
 165   //reset information
 166   fRecoPass=0;
 167
 168   //Get UserInfo from the current tree
 169   AliAnalysisManager *mgr=AliAnalysisManager::GetAnalysisManager();
 170   AliVEventHandler *inputHandler=mgr->GetInputEventHandler();
 171   if (!inputHandler) return;
 172
 173   TList *uiList = inputHandler->GetUserInfo();
 174   AliProdInfo prodInfo(uiList);
 175   prodInfo.List();
 176
 177   TTree *tree= (TTree*)inputHandler->GetTree();
 178   TFile *file= (TFile*)tree->GetCurrentFile();
 179   if (!file) {
 180     AliError("Current file not found, cannot set reconstruction information");
 181     return;
 182   } else {
 183     TString fileName(file->GetName());
 184     fPIDResponse->SetCurrentFile(fileName.Data());
 185   }
 186
 187   fPIDResponse->SetCurrentAliRootRev(prodInfo.GetAlirootSvnVersion());
 188
 189   if (prodInfo.IsMC() == kTRUE) fIsMC=kTRUE;         // protection if user didn't use macro switch
 190   if ( (prodInfo.IsMC() == kFALSE) && (fIsMC == kFALSE) ) {      // reco pass is needed only for data
 191
 192     if (fUserDataRecoPass > -1) {
 193       AliInfo(Form("Data reconstruction pass is user specified. Setting pass #: %d",fUserDataRecoPass));
 194       fRecoPass = fUserDataRecoPass;
 195     } else {
 196       fRecoPass = prodInfo.GetRecoPass();
 197       if (fRecoPass < 0) {   // as last resort we find pass from file name (UGLY, but not stored in ESDs/AODs before LHC12d )
 198         TString fileName(file->GetName());
 199         if (fileName.Contains("pass1") ) {
 200           fRecoPass=1;
 201         } else if (fileName.Contains("pass2") ) {
 202           fRecoPass=2;
 203         } else if (fileName.Contains("pass3") ) {
 204           fRecoPass=3;
 205         } else if (fileName.Contains("pass4") ) {
 206           fRecoPass=4;
 207         } else if (fileName.Contains("pass5") ) {
 208           fRecoPass=5;
 209         }
 210     }
 211     }
 212     if (fRecoPass <= 0) {
 213       AliError(" ******** Failed to find reconstruction pass number *********");
 214       AliError(" ******** PID information loaded for 'pass 0': parameters unreliable ******");
 215       AliError("      --> If these are MC data: please set kTRUE first argument of AddTaskPIDResponse");
 216       AliError("      --> If these are real data: ");
 217       AliError("          (a) please insert pass number inside the path of your local file  OR");
 218       AliError("          (b) specify reconstruction pass number when adding PIDResponse task");
 219       AliFatal(" no pass number specified for this data file, abort. Asserting AliFatal");
 220     }
 221   }
 222
 223 }