ANALYSIS/AliAnalysisTaskSE.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 /* $Id$ */
  17
  18 #include <TROOT.h>
  19 #include <TSystem.h>
  20 #include <TInterpreter.h>
  21 #include <TChain.h>
  22 #include <TFile.h>
  23 #include <TList.h>
  24
  25 #include "AliAnalysisTaskSE.h"
  26 #include "AliAnalysisManager.h"
  27 #include "AliAnalysisDataSlot.h"
  28 #include "AliESDEvent.h"
  29 #include "AliESD.h"
  30 #include "AliAODEvent.h"
  31 #include "AliAODHeader.h"
  32 #include "AliAODTracklets.h"
  33 #include "AliAODCaloCells.h"
  34 #include "AliAODMCParticle.h"
  35 #include "AliVEvent.h"
  36 #include "AliAODHandler.h"
  37 #include "AliAODInputHandler.h"
  38 #include "AliMCEventHandler.h"
  39 #include "AliInputEventHandler.h"
  40 #include "AliMCEvent.h"
  41 #include "AliStack.h"
  42 #include "AliLog.h"
  43
  44
  45 ClassImp(AliAnalysisTaskSE)
  46
  47 ////////////////////////////////////////////////////////////////////////
  48 AliAODHeader*    AliAnalysisTaskSE::fgAODHeader        = NULL;
  49 TClonesArray*    AliAnalysisTaskSE::fgAODTracks        = NULL;
  50 TClonesArray*    AliAnalysisTaskSE::fgAODVertices      = NULL;
  51 TClonesArray*    AliAnalysisTaskSE::fgAODV0s           = NULL;
  52 TClonesArray*    AliAnalysisTaskSE::fgAODPMDClusters   = NULL;
  53 TClonesArray*    AliAnalysisTaskSE::fgAODJets          = NULL;
  54 TClonesArray*    AliAnalysisTaskSE::fgAODFMDClusters   = NULL;
  55 TClonesArray*    AliAnalysisTaskSE::fgAODCaloClusters  = NULL;
  56 TClonesArray*    AliAnalysisTaskSE::fgAODMCParticles   = NULL;
  57 AliAODTracklets* AliAnalysisTaskSE::fgAODTracklets     = NULL;
  58 AliAODCaloCells* AliAnalysisTaskSE::fgAODEmcalCells    = NULL;
  59 AliAODCaloCells* AliAnalysisTaskSE::fgAODPhosCells     = NULL;
  60
  61
  62 AliAnalysisTaskSE::AliAnalysisTaskSE():
  63     AliAnalysisTask(),
  64     fDebug(0),
  65     fEntry(0),
  66     fInputEvent(0x0),
  67     fInputHandler(0x0),
  68     fOutputAOD(0x0),
  69     fMCEvent(0x0),
  70     fTreeA(0x0)
  71 {
  72   // Default constructor
  73 }
  74
  75 AliAnalysisTaskSE::AliAnalysisTaskSE(const char* name):
  76     AliAnalysisTask(name, "AnalysisTaskSE"),
  77     fDebug(0),
  78     fEntry(0),
  79     fInputEvent(0x0),
  80     fInputHandler(0x0),
  81     fOutputAOD(0x0),
  82     fMCEvent(0x0),
  83     fTreeA(0x0)
  84 {
  85   // Default constructor
  86     DefineInput (0, TChain::Class());
  87     DefineOutput(0,  TTree::Class());
  88 }
  89
  90 AliAnalysisTaskSE::AliAnalysisTaskSE(const AliAnalysisTaskSE& obj):
  91     AliAnalysisTask(obj),
  92     fDebug(0),
  93     fEntry(0),
  94     fInputEvent(0x0),
  95     fInputHandler(0x0),
  96     fOutputAOD(0x0),
  97     fMCEvent(0x0),
  98     fTreeA(0x0)
  99 {
 100 // Copy constructor
 101     fDebug        = obj.fDebug;
 102     fEntry        = obj.fEntry;
 103     fInputEvent   = obj.fInputEvent;
 104     fInputHandler = obj.fInputHandler;
 105     fOutputAOD    = obj.fOutputAOD;
 106     fMCEvent      = obj.fMCEvent;
 107     fTreeA        = obj.fTreeA;
 108 }
 109
 110
 111 AliAnalysisTaskSE& AliAnalysisTaskSE::operator=(const AliAnalysisTaskSE& other)
 112 {
 113 // Assignment
 114     AliAnalysisTask::operator=(other);
 115     fDebug        = other.fDebug;
 116     fEntry        = other.fEntry;
 117     fInputEvent   = other.fInputEvent;
 118     fInputHandler = other.fInputHandler;
 119     fOutputAOD    = other.fOutputAOD;
 120     fMCEvent      = other.fMCEvent;
 121     fTreeA        = other.fTreeA;
 122     return *this;
 123 }
 124
 125
 126 void AliAnalysisTaskSE::ConnectInputData(Option_t* /*option*/)
 127 {
 128 // Connect the input data
 129     if (fDebug > 1) printf("AnalysisTaskSE::ConnectInputData() \n");
 130 //
 131 //  ESD
 132 //
 133     fInputHandler = (AliInputEventHandler*)
 134          ((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
 135 //
 136 //  Monte Carlo
 137 //
 138     AliMCEventHandler*    mcH = 0;
 139     mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
 140     if (mcH) {
 141         fMCEvent = mcH->MCEvent();
 142     }
 143
 144     if (fInputHandler) {
 145          fInputEvent = fInputHandler->GetEvent();
 146     } else if( fMCEvent ) {
 147          AliWarning("No Input Event Handler connected, only MC Truth Event Handler") ;
 148     } else {
 149          AliError("No Input Event Handler connected") ;
 150          return ;
 151     }
 152 }
 153
 154 void AliAnalysisTaskSE::CreateOutputObjects()
 155 {
 156 // Create the output container
 157 //
 158 //  Default AOD
 159     if (fDebug > 1) printf("AnalysisTaskSE::CreateOutPutData() \n");
 160
 161     AliAODHandler* handler = (AliAODHandler*)
 162          ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 163
 164     Bool_t merging = kFALSE;
 165     AliAODInputHandler* aodIH = static_cast<AliAODInputHandler*>((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
 166     if (aodIH) {
 167         if (aodIH->GetMergeEvents()) merging = kTRUE;
 168     }
 169
 170     // Check if AOD replication has been required
 171
 172     if (handler) {
 173         fOutputAOD   = handler->GetAOD();
 174         fTreeA = handler->GetTree();
 175         if (!(handler->IsStandard())) {
 176             if ((handler->NeedsHeaderReplication()) && !(fgAODHeader))
 177                 {
 178                  if (fDebug > 1) AliInfo("Replicating header");
 179                  fgAODHeader = new AliAODHeader;
 180                  handler->AddBranch("AliAODHeader", &fgAODHeader);
 181                 }
 182             if ((handler->NeedsTracksBranchReplication() || merging) && !(fgAODTracks))
 183             {
 184                 if (fDebug > 1) AliInfo("Replicating track branch\n");
 185                 fgAODTracks = new TClonesArray("AliAODTrack",500);
 186                 fgAODTracks->SetName("tracks");
 187                 handler->AddBranch("TClonesArray", &fgAODTracks);
 188             }
 189             if ((handler->NeedsVerticesBranchReplication() || merging) && !(fgAODVertices))
 190             {
 191                 if (fDebug > 1) AliInfo("Replicating vertices branch\n");
 192                 fgAODVertices = new TClonesArray("AliAODVertex",500);
 193                 fgAODVertices->SetName("vertices");
 194                 handler->AddBranch("TClonesArray", &fgAODVertices);
 195             }
 196             if ((handler->NeedsV0sBranchReplication()) && !(fgAODV0s))
 197             {
 198                 if (fDebug > 1) AliInfo("Replicating V0s branch\n");
 199                 fgAODV0s = new TClonesArray("AliAODv0",500);
 200                 fgAODV0s->SetName("v0s");
 201                 handler->AddBranch("TClonesArray", &fgAODV0s);
 202             }
 203             if ((handler->NeedsTrackletsBranchReplication()) && !(fgAODTracklets))
 204             {
 205                 if (fDebug > 1) AliInfo("Replicating Tracklets branch\n");
 206                 fgAODTracklets = new AliAODTracklets("tracklets","tracklets");
 207                 handler->AddBranch("AliAODTracklets", &fgAODTracklets);
 208             }
 209             if ((handler->NeedsPMDClustersBranchReplication()) && !(fgAODPMDClusters))
 210             {
 211                 if (fDebug > 1) AliInfo("Replicating PMDClusters branch\n");
 212                 fgAODPMDClusters = new TClonesArray("AliAODPmdCluster",500);
 213                 fgAODPMDClusters->SetName("pmdClusters");
 214                 handler->AddBranch("TClonesArray", &fgAODPMDClusters);
 215             }
 216             if ((handler->NeedsJetsBranchReplication() || merging) && !(fgAODJets))
 217             {
 218                 if (fDebug > 1) AliInfo("Replicating Jets branch\n");
 219                 fgAODJets = new TClonesArray("AliAODJet",500);
 220                 fgAODJets->SetName("jets");
 221                 handler->AddBranch("TClonesArray", &fgAODJets);
 222             }
 223             if ((handler->NeedsFMDClustersBranchReplication()) && !(fgAODFMDClusters))
 224             {
 225                 AliInfo("Replicating FMDClusters branch\n");
 226                 fgAODFMDClusters = new TClonesArray("AliAODFmdCluster",500);
 227                 fgAODFMDClusters->SetName("fmdClusters");
 228                 handler->AddBranch("TClonesArray", &fgAODFMDClusters);
 229             }
 230             if ((handler->NeedsCaloClustersBranchReplication() || merging) && !(fgAODCaloClusters))
 231             {
 232                 if (fDebug > 1) AliInfo("Replicating CaloClusters branch\n");
 233                 fgAODCaloClusters = new TClonesArray("AliAODCaloCluster",500);
 234                 fgAODCaloClusters->SetName("caloClusters");
 235                 handler->AddBranch("TClonesArray", &fgAODCaloClusters);
 236
 237                 fgAODEmcalCells = new AliAODCaloCells();
 238                 fgAODEmcalCells->SetName("emcalCells");
 239                 handler->AddBranch("AliAODCaloCells", &fgAODEmcalCells);
 240
 241                 fgAODPhosCells = new AliAODCaloCells();
 242                 fgAODPhosCells->SetName("phosCells");
 243                 handler->AddBranch("AliAODCaloCells", &fgAODPhosCells);
 244             }
 245             if ((handler->NeedsMCParticlesBranchReplication() || merging) && !(fgAODMCParticles))
 246             {
 247                 if (fDebug > 1) AliInfo("Replicating MCParticles branch\n");
 248                 fgAODMCParticles = new TClonesArray("AliAODMCParticle",500);
 249                 fgAODMCParticles->SetName("mcparticles");
 250                 handler->AddBranch("TClonesArray", &fgAODMCParticles);
 251             }
 252             // cache the pointerd in the AODEvent
 253             fOutputAOD->GetStdContent();
 254         }
 255     } else {
 256         AliWarning("No AOD Event Handler connected.") ;
 257     }
 258     UserCreateOutputObjects();
 259 }
 260
 261 void AliAnalysisTaskSE::Exec(Option_t* option)
 262 {
 263 //
 264 // Exec analysis of one event
 265     if (fDebug > 1) AliInfo("AliAnalysisTaskSE::Exec() \n");
 266
 267     if( fInputHandler ) {
 268        fEntry = fInputHandler->GetReadEntry();
 269     }
 270
 271
 272     else if( fMCEvent )
 273        fEntry = fMCEvent->Header()->GetEvent();
 274     if ( !((Entry()-1)%100) && fDebug > 0)
 275          AliInfo(Form("%s ----> Processing event # %lld", CurrentFileName(), Entry()));
 276
 277     AliAODHandler* handler = (AliAODHandler*)
 278         ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 279     AliAODInputHandler* aodH = dynamic_cast<AliAODInputHandler*>(fInputHandler);
 280
 281     if (handler && aodH) {
 282         fMCEvent = aodH->MCEvent();
 283         Bool_t merging = aodH->GetMergeEvents();
 284
 285         if (!(handler->IsStandard()) && !(handler->AODIsReplicated())) {
 286             if ((handler->NeedsHeaderReplication()) && (fgAODHeader))
 287             {
 288               // copy the contents by assigment
 289               *fgAODHeader =  *(dynamic_cast<AliAODHeader*>(InputEvent()->GetHeader()));
 290             }
 291             if ((handler->NeedsTracksBranchReplication() || merging) && (fgAODTracks))
 292             {
 293                 TClonesArray* tracks = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetTracks();
 294                 new (fgAODTracks) TClonesArray(*tracks);
 295             }
 296             if ((handler->NeedsVerticesBranchReplication() || merging) && (fgAODVertices))
 297             {
 298                 TClonesArray* vertices = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetVertices();
 299                 new (fgAODVertices) TClonesArray(*vertices);
 300             }
 301             if ((handler->NeedsV0sBranchReplication()) && (fgAODV0s))
 302             {
 303                 TClonesArray* v0s = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetV0s();
 304                 new (fgAODV0s) TClonesArray(*v0s);
 305             }
 306             if ((handler->NeedsTrackletsBranchReplication()) && (fgAODTracklets))
 307             {
 308               *fgAODTracklets = *(dynamic_cast<AliAODEvent*>(InputEvent()))->GetTracklets();
 309             }
 310             if ((handler->NeedsPMDClustersBranchReplication()) && (fgAODPMDClusters))
 311             {
 312                 TClonesArray* pmdClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetPmdClusters();
 313                 new (fgAODPMDClusters) TClonesArray(*pmdClusters);
 314             }
 315             if ((handler->NeedsJetsBranchReplication() || merging) && (fgAODJets))
 316             {
 317                 TClonesArray* jets = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetJets();
 318                 new (fgAODJets) TClonesArray(*jets);
 319             }
 320             if ((handler->NeedsFMDClustersBranchReplication()) && (fgAODFMDClusters))
 321             {
 322                 TClonesArray* fmdClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetFmdClusters();
 323                 new (fgAODFMDClusters) TClonesArray(*fmdClusters);
 324             }
 325             if ((handler->NeedsCaloClustersBranchReplication() || merging) && (fgAODCaloClusters))
 326             {
 327                 TClonesArray* caloClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetCaloClusters();
 328                 new (fgAODCaloClusters) TClonesArray(*caloClusters);
 329             }
 330
 331             if ((handler->NeedsMCParticlesBranchReplication() || merging) && (fgAODMCParticles))
 332             {
 333                 TClonesArray* mcParticles = (TClonesArray*) ((dynamic_cast<AliAODEvent*>(InputEvent()))->FindListObject("mcparticles"));
 334                 new (fgAODMCParticles) TClonesArray(*mcParticles);
 335             }
 336
 337             // Additional merging if needed
 338             if (merging) {
 339                 // mcParticles
 340                 TClonesArray* mcparticles = (TClonesArray*) ((aodH->GetEventToMerge())->FindListObject("mcparticles"));
 341                 Int_t npart = mcparticles->GetEntries();
 342                 Int_t nc = fgAODMCParticles->GetEntries();
 343                 Int_t nc0 = nc;
 344
 345                 for (Int_t i = 0; i < npart; i++) {
 346                     AliAODMCParticle* particle = (AliAODMCParticle*) mcparticles->At(i);
 347                     new((*fgAODMCParticles)[nc++]) AliAODMCParticle(*particle);
 348                 }
 349
 350                 // tracks
 351                 TClonesArray* tracks = aodH->GetEventToMerge()->GetTracks();
 352                 Int_t ntr = tracks->GetEntries();
 353                 nc  = fgAODTracks->GetEntries();
 354                 for (Int_t i = 0; i < ntr; i++) {
 355                     AliAODTrack*    track = (AliAODTrack*) tracks->At(i);
 356                     AliAODTrack* newtrack = new((*fgAODTracks)[nc++]) AliAODTrack(*track);
 357
 358                     newtrack->SetLabel(newtrack->GetLabel() + nc0);
 359                 }
 360
 361                 for (Int_t i = 0; i < nc; i++)
 362                 {
 363                     AliAODTrack* track = (AliAODTrack*) fgAODTracks->At(i);
 364                     track->ResetBit(kIsReferenced);
 365                     track->SetUniqueID(0);
 366                 }
 367
 368
 369                 // clusters
 370                 TClonesArray* clusters = aodH->GetEventToMerge()->GetCaloClusters();
 371                 Int_t ncl  = clusters->GetEntries();
 372                 nc         =  fgAODCaloClusters->GetEntries();
 373                 for (Int_t i = 0; i < ncl; i++) {
 374                     AliAODCaloCluster*    cluster = (AliAODCaloCluster*) clusters->At(i);
 375                     new((*fgAODCaloClusters)[nc++]) AliAODCaloCluster(*cluster);
 376                 }
 377                 // cells
 378                 AliAODCaloCells* cellsA = aodH->GetEventToMerge()->GetEMCALCells();
 379                 Int_t ncells  = cellsA->GetNumberOfCells();
 380                 nc = fgAODEmcalCells->GetNumberOfCells();
 381
 382                 for (Int_t i  = 0; i < ncells; i++) {
 383                     Int_t cn  = cellsA->GetCellNumber(i);
 384                     Int_t pos = fgAODEmcalCells->GetCellPosition(cn);
 385                     if (pos >= 0) {
 386                         Double_t amp = cellsA->GetAmplitude(i) + fgAODEmcalCells->GetAmplitude(pos);
 387                         fgAODEmcalCells->SetCell(pos, cn, amp);
 388                     } else {
 389                         Double_t amp = cellsA->GetAmplitude(i);
 390                         fgAODEmcalCells->SetCell(nc++, cn, amp);
 391                         fgAODEmcalCells->Sort();
 392                     }
 393                 }
 394
 395
 396             } // merging
 397
 398             handler->SetAODIsReplicated();
 399         }
 400     }
 401
 402 // Call the user analysis
 403     UserExec(option);
 404     // Added protection in case the derived task is not an AOD producer.
 405     AliAnalysisDataSlot *out0 = GetOutputSlot(0);
 406     if (out0 && out0->IsConnected()) PostData(0, fTreeA);
 407 }
 408
 409 const char* AliAnalysisTaskSE::CurrentFileName()
 410 {
 411 // Returns the current file name
 412     if( fInputHandler )
 413       return fInputHandler->GetTree()->GetCurrentFile()->GetName();
 414     else if( fMCEvent )
 415       return ((AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()))->TreeK()->GetCurrentFile()->GetName();
 416     else return "";
 417 }
 418
 419 void AliAnalysisTaskSE::AddAODBranch(const char* cname, void* addobj, const char *fname)
 420 {
 421     // Add a new branch to the aod tree
 422     AliAODHandler* handler = (AliAODHandler*)
 423         ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 424     if (handler) {
 425         handler->AddBranch(cname, addobj, fname);
 426     }
 427 }
 428
 429 Bool_t AliAnalysisTaskSE::IsStandardAOD() const
 430 {
 431 // Check if the output AOD handler is configured for standard or delta AOD.
 432 // Users should first check that AODEvent() returns non-null.
 433     AliAODHandler* handler = (AliAODHandler*)
 434          ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 435     if (!handler) {
 436        Error("IsStandardAOD", "No AOD handler. Please use AODEvent() to check this first");
 437        return kTRUE;
 438     }
 439     return handler->IsStandard();
 440 }