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 "AliAnalysisCuts.h"
  28 #include "AliAnalysisDataSlot.h"
  29
  30 #include "AliESDEvent.h"
  31 #include "AliESDfriend.h"
  32 #include "AliESD.h"
  33 #include "AliAODEvent.h"
  34 #include "AliAODHeader.h"
  35 #include "AliAODTracklets.h"
  36 #include "AliAODCaloCells.h"
  37 #include "AliAODMCParticle.h"
  38 #include "AliVEvent.h"
  39 #include "AliAODHandler.h"
  40 #include "AliAODInputHandler.h"
  41 #include "AliMCEventHandler.h"
  42 #include "AliInputEventHandler.h"
  43 #include "AliESDInputHandler.h"
  44 #include "AliMCEvent.h"
  45 #include "AliStack.h"
  46 #include "AliLog.h"
  47
  48
  49 ClassImp(AliAnalysisTaskSE)
  50
  51 ////////////////////////////////////////////////////////////////////////
  52 AliAODHeader*    AliAnalysisTaskSE::fgAODHeader         = NULL;
  53 TClonesArray*    AliAnalysisTaskSE::fgAODTracks         = NULL;
  54 TClonesArray*    AliAnalysisTaskSE::fgAODVertices       = NULL;
  55 TClonesArray*    AliAnalysisTaskSE::fgAODV0s            = NULL;
  56 TClonesArray*    AliAnalysisTaskSE::fgAODPMDClusters    = NULL;
  57 TClonesArray*    AliAnalysisTaskSE::fgAODJets           = NULL;
  58 TClonesArray*    AliAnalysisTaskSE::fgAODFMDClusters    = NULL;
  59 TClonesArray*    AliAnalysisTaskSE::fgAODCaloClusters   = NULL;
  60 TClonesArray*    AliAnalysisTaskSE::fgAODMCParticles    = NULL;
  61 AliAODTracklets* AliAnalysisTaskSE::fgAODTracklets      = NULL;
  62 AliAODCaloCells* AliAnalysisTaskSE::fgAODEmcalCells     = NULL;
  63 AliAODCaloCells* AliAnalysisTaskSE::fgAODPhosCells      = NULL;
  64
  65 AliAnalysisTaskSE::AliAnalysisTaskSE():
  66     AliAnalysisTask(),
  67     fDebug(0),
  68     fEntry(0),
  69     fInputEvent(0x0),
  70     fESDfriend(0x0),
  71     fInputHandler(0x0),
  72     fOutputAOD(0x0),
  73     fMCEvent(0x0),
  74     fTreeA(0x0),
  75     fCurrentRunNumber(-1),
  76     fHistosQA(0x0),
  77     fSelectCollisions(0)
  78 {
  79   // Default constructor
  80 }
  81
  82 AliAnalysisTaskSE::AliAnalysisTaskSE(const char* name):
  83     AliAnalysisTask(name, "AnalysisTaskSE"),
  84     fDebug(0),
  85     fEntry(0),
  86     fInputEvent(0x0),
  87     fESDfriend(0x0),
  88     fInputHandler(0x0),
  89     fOutputAOD(0x0),
  90     fMCEvent(0x0),
  91     fTreeA(0x0),
  92     fCurrentRunNumber(-1),
  93     fHistosQA(0x0),
  94     fSelectCollisions(0)
  95 {
  96   // Default constructor
  97     DefineInput (0, TChain::Class());
  98     DefineOutput(0,  TTree::Class());
  99 }
 100
 101 AliAnalysisTaskSE::AliAnalysisTaskSE(const AliAnalysisTaskSE& obj):
 102     AliAnalysisTask(obj),
 103     fDebug(0),
 104     fEntry(0),
 105     fInputEvent(0x0),
 106     fESDfriend(0x0),
 107     fInputHandler(0x0),
 108     fOutputAOD(0x0),
 109     fMCEvent(0x0),
 110     fTreeA(0x0),
 111     fCurrentRunNumber(-1),
 112     fHistosQA(0x0),
 113     fSelectCollisions(0)
 114 {
 115 // Copy constructor
 116     fDebug            = obj.fDebug;
 117     fEntry            = obj.fEntry;
 118     fInputEvent       = obj.fInputEvent;
 119     fESDfriend        = obj.fESDfriend;
 120     fInputHandler     = obj.fInputHandler;
 121     fOutputAOD        = obj.fOutputAOD;
 122     fMCEvent          = obj.fMCEvent;
 123     fTreeA            = obj.fTreeA;
 124     fCurrentRunNumber = obj.fCurrentRunNumber;
 125     fHistosQA         = obj.fHistosQA;
 126
 127 }
 128
 129
 130 AliAnalysisTaskSE& AliAnalysisTaskSE::operator=(const AliAnalysisTaskSE& other)
 131 {
 132 // Assignment
 133     AliAnalysisTask::operator=(other);
 134     fDebug            = other.fDebug;
 135     fEntry            = other.fEntry;
 136     fInputEvent       = other.fInputEvent;
 137     fESDfriend        = other.fESDfriend;
 138     fInputHandler     = other.fInputHandler;
 139     fOutputAOD        = other.fOutputAOD;
 140     fMCEvent          = other.fMCEvent;
 141     fTreeA            = other.fTreeA;
 142     fCurrentRunNumber = other.fCurrentRunNumber;
 143     fHistosQA         = other.fHistosQA;
 144     fSelectCollisions = other.fSelectCollisions;
 145     return *this;
 146 }
 147
 148
 149 void AliAnalysisTaskSE::ConnectInputData(Option_t* /*option*/)
 150 {
 151 // Connect the input data
 152     if (fDebug > 1) printf("AnalysisTaskSE::ConnectInputData() \n");
 153 //
 154 //  ESD
 155 //
 156     fInputHandler = (AliInputEventHandler*)
 157          ((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
 158 //
 159 //  Monte Carlo
 160 //
 161     AliMCEventHandler*    mcH = 0;
 162     mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
 163     if (mcH) {
 164         fMCEvent = mcH->MCEvent();
 165     }
 166
 167     if (fInputHandler) {
 168         if ((fInputHandler->GetTree())->GetBranch("ESDfriend."))
 169             fESDfriend = ((AliESDInputHandler*)fInputHandler)->GetESDfriend();
 170
 171         fInputEvent = fInputHandler->GetEvent();
 172     } else if( fMCEvent ) {
 173          AliWarning("No Input Event Handler connected, only MC Truth Event Handler") ;
 174     } else {
 175          AliError("No Input Event Handler connected") ;
 176          return ;
 177     }
 178 }
 179
 180 void AliAnalysisTaskSE::CreateOutputObjects()
 181 {
 182 // Create the output container
 183 //
 184 //  Default AOD
 185     if (fDebug > 1) printf("AnalysisTaskSE::CreateOutPutData() \n");
 186
 187     AliAODHandler* handler = (AliAODHandler*)
 188          ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 189
 190     Bool_t merging = kFALSE;
 191     AliAODInputHandler* aodIH = static_cast<AliAODInputHandler*>((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
 192     if (aodIH) {
 193         if (aodIH->GetMergeEvents()) merging = kTRUE;
 194     }
 195
 196
 197     // Check if AOD replication has been required
 198
 199     if (handler) {
 200         fOutputAOD   = handler->GetAOD();
 201         fTreeA = handler->GetTree();
 202         if (fOutputAOD && !(handler->IsStandard())) {
 203             if ((handler->NeedsHeaderReplication()) && !(fgAODHeader))
 204                 {
 205                  if (fDebug > 1) AliInfo("Replicating header");
 206                  fgAODHeader = new AliAODHeader;
 207                  handler->AddBranch("AliAODHeader", &fgAODHeader);
 208                 }
 209             if ((handler->NeedsTracksBranchReplication() || merging) && !(fgAODTracks))
 210             {
 211                 if (fDebug > 1) AliInfo("Replicating track branch\n");
 212                 fgAODTracks = new TClonesArray("AliAODTrack",500);
 213                 fgAODTracks->SetName("tracks");
 214                 handler->AddBranch("TClonesArray", &fgAODTracks);
 215             }
 216             if ((handler->NeedsVerticesBranchReplication() || merging) && !(fgAODVertices))
 217             {
 218                 if (fDebug > 1) AliInfo("Replicating vertices branch\n");
 219                 fgAODVertices = new TClonesArray("AliAODVertex",500);
 220                 fgAODVertices->SetName("vertices");
 221                 handler->AddBranch("TClonesArray", &fgAODVertices);
 222             }
 223             if ((handler->NeedsV0sBranchReplication()) && !(fgAODV0s))
 224             {
 225                 if (fDebug > 1) AliInfo("Replicating V0s branch\n");
 226                 fgAODV0s = new TClonesArray("AliAODv0",500);
 227                 fgAODV0s->SetName("v0s");
 228                 handler->AddBranch("TClonesArray", &fgAODV0s);
 229             }
 230             if ((handler->NeedsTrackletsBranchReplication()) && !(fgAODTracklets))
 231             {
 232                 if (fDebug > 1) AliInfo("Replicating Tracklets branch\n");
 233                 fgAODTracklets = new AliAODTracklets("tracklets","tracklets");
 234                 handler->AddBranch("AliAODTracklets", &fgAODTracklets);
 235             }
 236             if ((handler->NeedsPMDClustersBranchReplication()) && !(fgAODPMDClusters))
 237             {
 238                 if (fDebug > 1) AliInfo("Replicating PMDClusters branch\n");
 239                 fgAODPMDClusters = new TClonesArray("AliAODPmdCluster",500);
 240                 fgAODPMDClusters->SetName("pmdClusters");
 241                 handler->AddBranch("TClonesArray", &fgAODPMDClusters);
 242             }
 243             if ((handler->NeedsJetsBranchReplication() || merging) && !(fgAODJets))
 244             {
 245                 if (fDebug > 1) AliInfo("Replicating Jets branch\n");
 246                 fgAODJets = new TClonesArray("AliAODJet",500);
 247                 fgAODJets->SetName("jets");
 248                 handler->AddBranch("TClonesArray", &fgAODJets);
 249             }
 250             if ((handler->NeedsFMDClustersBranchReplication()) && !(fgAODFMDClusters))
 251             {
 252                 AliInfo("Replicating FMDClusters branch\n");
 253                 fgAODFMDClusters = new TClonesArray("AliAODFmdCluster",500);
 254                 fgAODFMDClusters->SetName("fmdClusters");
 255                 handler->AddBranch("TClonesArray", &fgAODFMDClusters);
 256             }
 257             if ((handler->NeedsCaloClustersBranchReplication() || merging) && !(fgAODCaloClusters))
 258             {
 259                 if (fDebug > 1) AliInfo("Replicating CaloClusters branch\n");
 260                 fgAODCaloClusters = new TClonesArray("AliAODCaloCluster",500);
 261                 fgAODCaloClusters->SetName("caloClusters");
 262                 handler->AddBranch("TClonesArray", &fgAODCaloClusters);
 263
 264                 fgAODEmcalCells = new AliAODCaloCells();
 265                 fgAODEmcalCells->SetName("emcalCells");
 266                 handler->AddBranch("AliAODCaloCells", &fgAODEmcalCells);
 267
 268                 fgAODPhosCells = new AliAODCaloCells();
 269                 fgAODPhosCells->SetName("phosCells");
 270                 handler->AddBranch("AliAODCaloCells", &fgAODPhosCells);
 271             }
 272             if ((handler->NeedsMCParticlesBranchReplication() || merging) && !(fgAODMCParticles))
 273             {
 274                 if (fDebug > 1) AliInfo("Replicating MCParticles branch\n");
 275                 fgAODMCParticles = new TClonesArray("AliAODMCParticle",500);
 276                 fgAODMCParticles->SetName("mcparticles");
 277                 handler->AddBranch("TClonesArray", &fgAODMCParticles);
 278             }
 279             // cache the pointerd in the AODEvent
 280             fOutputAOD->GetStdContent();
 281         }
 282     } else {
 283         AliWarning("No AOD Event Handler connected.") ;
 284     }
 285     UserCreateOutputObjects();
 286 }
 287
 288 void AliAnalysisTaskSE::Exec(Option_t* option)
 289 {
 290 //
 291 // Exec analysis of one event
 292     if (fDebug > 1) AliInfo("AliAnalysisTaskSE::Exec() \n");
 293 //
 294     AliAODHandler* handler = (AliAODHandler*)
 295         ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 296     AliAODInputHandler* aodH = dynamic_cast<AliAODInputHandler*>(fInputHandler);
 297 //
 298 // Was event selected ?
 299     Bool_t isSelected = kTRUE;
 300     if( fInputHandler && fInputHandler->GetEventSelection() && fSelectCollisions) {
 301       isSelected = fInputHandler->IsEventSelected();
 302     }
 303
 304     if (handler) handler->SetFillAOD(isSelected);
 305
 306     if( fInputHandler ) fEntry = fInputHandler->GetReadEntry();
 307
 308
 309 // Notify the change of run number
 310     if (InputEvent()->GetRunNumber() != fCurrentRunNumber) {
 311         fCurrentRunNumber = InputEvent()->GetRunNumber();
 312         NotifyRun();
 313     }
 314
 315     else if( fMCEvent )
 316        fEntry = fMCEvent->Header()->GetEvent();
 317     if ( !((Entry()-1)%100) && fDebug > 0)
 318          AliInfo(Form("%s ----> Processing event # %lld", CurrentFileName(), Entry()));
 319
 320
 321
 322
 323     if (handler && aodH) {
 324         fMCEvent = aodH->MCEvent();
 325         Bool_t merging = aodH->GetMergeEvents();
 326
 327         if (!(handler->IsStandard()) && !(handler->AODIsReplicated())) {
 328             if ((handler->NeedsHeaderReplication()) && (fgAODHeader))
 329             {
 330               // copy the contents by assigment
 331               *fgAODHeader =  *(dynamic_cast<AliAODHeader*>(InputEvent()->GetHeader()));
 332             }
 333             if ((handler->NeedsTracksBranchReplication() || merging) && (fgAODTracks))
 334             {
 335                 TClonesArray* tracks = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetTracks();
 336                 new (fgAODTracks) TClonesArray(*tracks);
 337             }
 338             if ((handler->NeedsVerticesBranchReplication() || merging) && (fgAODVertices))
 339             {
 340                 TClonesArray* vertices = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetVertices();
 341                 new (fgAODVertices) TClonesArray(*vertices);
 342             }
 343             if ((handler->NeedsV0sBranchReplication()) && (fgAODV0s))
 344             {
 345                 TClonesArray* v0s = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetV0s();
 346                 new (fgAODV0s) TClonesArray(*v0s);
 347             }
 348             if ((handler->NeedsTrackletsBranchReplication()) && (fgAODTracklets))
 349             {
 350               *fgAODTracklets = *(dynamic_cast<AliAODEvent*>(InputEvent()))->GetTracklets();
 351             }
 352             if ((handler->NeedsPMDClustersBranchReplication()) && (fgAODPMDClusters))
 353             {
 354                 TClonesArray* pmdClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetPmdClusters();
 355                 new (fgAODPMDClusters) TClonesArray(*pmdClusters);
 356             }
 357             if ((handler->NeedsJetsBranchReplication() || merging) && (fgAODJets))
 358             {
 359                 TClonesArray* jets = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetJets();
 360                 new (fgAODJets) TClonesArray(*jets);
 361             }
 362             if ((handler->NeedsFMDClustersBranchReplication()) && (fgAODFMDClusters))
 363             {
 364                 TClonesArray* fmdClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetFmdClusters();
 365                 new (fgAODFMDClusters) TClonesArray(*fmdClusters);
 366             }
 367             if ((handler->NeedsCaloClustersBranchReplication() || merging) && (fgAODCaloClusters))
 368             {
 369                 TClonesArray* caloClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetCaloClusters();
 370                 new (fgAODCaloClusters) TClonesArray(*caloClusters);
 371             }
 372
 373             if ((handler->NeedsMCParticlesBranchReplication() || merging) && (fgAODMCParticles))
 374             {
 375                 TClonesArray* mcParticles = (TClonesArray*) ((dynamic_cast<AliAODEvent*>(InputEvent()))->FindListObject("mcparticles"));
 376                 new (fgAODMCParticles) TClonesArray(*mcParticles);
 377             }
 378
 379             // Additional merging if needed
 380             if (merging) {
 381                 // mcParticles
 382                 TClonesArray* mcparticles = (TClonesArray*) ((aodH->GetEventToMerge())->FindListObject("mcparticles"));
 383                 Int_t npart = mcparticles->GetEntries();
 384                 Int_t nc = fgAODMCParticles->GetEntries();
 385                 Int_t nc0 = nc;
 386
 387                 for (Int_t i = 0; i < npart; i++) {
 388                     AliAODMCParticle* particle = (AliAODMCParticle*) mcparticles->At(i);
 389                     new((*fgAODMCParticles)[nc++]) AliAODMCParticle(*particle);
 390                 }
 391
 392                 // tracks
 393                 TClonesArray* tracks = aodH->GetEventToMerge()->GetTracks();
 394                 Int_t ntr = tracks->GetEntries();
 395                 nc  = fgAODTracks->GetEntries();
 396                 for (Int_t i = 0; i < ntr; i++) {
 397                     AliAODTrack*    track = (AliAODTrack*) tracks->At(i);
 398                     AliAODTrack* newtrack = new((*fgAODTracks)[nc++]) AliAODTrack(*track);
 399
 400                     newtrack->SetLabel(newtrack->GetLabel() + nc0);
 401                 }
 402
 403                 for (Int_t i = 0; i < nc; i++)
 404                 {
 405                     AliAODTrack* track = (AliAODTrack*) fgAODTracks->At(i);
 406                     track->ResetBit(kIsReferenced);
 407                     track->SetUniqueID(0);
 408                 }
 409
 410
 411                 // clusters
 412                 TClonesArray* clusters = aodH->GetEventToMerge()->GetCaloClusters();
 413                 Int_t ncl  = clusters->GetEntries();
 414                 nc         =  fgAODCaloClusters->GetEntries();
 415                 for (Int_t i = 0; i < ncl; i++) {
 416                     AliAODCaloCluster*    cluster = (AliAODCaloCluster*) clusters->At(i);
 417                     new((*fgAODCaloClusters)[nc++]) AliAODCaloCluster(*cluster);
 418                 }
 419                 // cells
 420                 AliAODCaloCells* cellsA = aodH->GetEventToMerge()->GetEMCALCells();
 421                 Int_t ncells  = cellsA->GetNumberOfCells();
 422                 nc = fgAODEmcalCells->GetNumberOfCells();
 423
 424                 for (Int_t i  = 0; i < ncells; i++) {
 425                     Int_t cn  = cellsA->GetCellNumber(i);
 426                     Int_t pos = fgAODEmcalCells->GetCellPosition(cn);
 427                     if (pos >= 0) {
 428                         Double_t amp = cellsA->GetAmplitude(i) + fgAODEmcalCells->GetAmplitude(pos);
 429                         fgAODEmcalCells->SetCell(pos, cn, amp);
 430                     } else {
 431                         Double_t amp = cellsA->GetAmplitude(i);
 432                         fgAODEmcalCells->SetCell(nc++, cn, amp);
 433                         fgAODEmcalCells->Sort();
 434                     }
 435                 }
 436
 437
 438             } // merging
 439
 440             handler->SetAODIsReplicated();
 441         }
 442     }
 443
 444 // Call the user analysis
 445     if (!fSelectCollisions || isSelected)
 446         UserExec(option);
 447
 448 // Added protection in case the derived task is not an AOD producer.
 449     AliAnalysisDataSlot *out0 = GetOutputSlot(0);
 450     if (out0 && out0->IsConnected()) PostData(0, fTreeA);
 451 }
 452
 453 const char* AliAnalysisTaskSE::CurrentFileName()
 454 {
 455 // Returns the current file name
 456     if( fInputHandler )
 457       return fInputHandler->GetTree()->GetCurrentFile()->GetName();
 458     else if( fMCEvent )
 459       return ((AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()))->TreeK()->GetCurrentFile()->GetName();
 460     else return "";
 461 }
 462
 463 void AliAnalysisTaskSE::AddAODBranch(const char* cname, void* addobj, const char *fname)
 464 {
 465     // Add a new branch to the aod tree
 466     AliAODHandler* handler = (AliAODHandler*)
 467         ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 468     if (handler) {
 469         handler->AddBranch(cname, addobj, fname);
 470     }
 471 }
 472
 473 Bool_t AliAnalysisTaskSE::IsStandardAOD() const
 474 {
 475 // Check if the output AOD handler is configured for standard or delta AOD.
 476 // Users should first check that AODEvent() returns non-null.
 477     AliAODHandler* handler = (AliAODHandler*)
 478          ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 479     if (!handler) {
 480        Error("IsStandardAOD", "No AOD handler. Please use AODEvent() to check this first");
 481        return kTRUE;
 482     }
 483     return handler->IsStandard();
 484 }
 485
 486 Bool_t AliAnalysisTaskSE::Notify()
 487 {
 488     return (UserNotify());
 489 }
 490
 491