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 "AliVEvent.h"
  34 #include "AliAODHandler.h"
  35 #include "AliAODInputHandler.h"
  36 #include "AliMCEventHandler.h"
  37 #include "AliInputEventHandler.h"
  38 #include "AliMCEvent.h"
  39 #include "AliStack.h"
  40 #include "AliLog.h"
  41
  42
  43 ClassImp(AliAnalysisTaskSE)
  44
  45 ////////////////////////////////////////////////////////////////////////
  46 AliAODHeader*    AliAnalysisTaskSE::fgAODHeader        = NULL;
  47 TClonesArray*    AliAnalysisTaskSE::fgAODTracks        = NULL;
  48 TClonesArray*    AliAnalysisTaskSE::fgAODVertices      = NULL;
  49 TClonesArray*    AliAnalysisTaskSE::fgAODV0s           = NULL;
  50 TClonesArray*    AliAnalysisTaskSE::fgAODPMDClusters   = NULL;
  51 TClonesArray*    AliAnalysisTaskSE::fgAODJets          = NULL;
  52 TClonesArray*    AliAnalysisTaskSE::fgAODFMDClusters   = NULL;
  53 TClonesArray*    AliAnalysisTaskSE::fgAODCaloClusters  = NULL;
  54 AliAODTracklets* AliAnalysisTaskSE::fgAODTracklets     = NULL;
  55
  56
  57 AliAnalysisTaskSE::AliAnalysisTaskSE():
  58     AliAnalysisTask(),
  59     fDebug(0),
  60     fEntry(0),
  61     fInputEvent(0x0),
  62     fInputHandler(0x0),
  63     fOutputAOD(0x0),
  64     fMCEvent(0x0),
  65     fTreeA(0x0)
  66 {
  67   // Default constructor
  68 }
  69
  70 AliAnalysisTaskSE::AliAnalysisTaskSE(const char* name):
  71     AliAnalysisTask(name, "AnalysisTaskSE"),
  72     fDebug(0),
  73     fEntry(0),
  74     fInputEvent(0x0),
  75     fInputHandler(0x0),
  76     fOutputAOD(0x0),
  77     fMCEvent(0x0),
  78     fTreeA(0x0)
  79 {
  80   // Default constructor
  81     DefineInput (0, TChain::Class());
  82     DefineOutput(0,  TTree::Class());
  83 }
  84
  85 AliAnalysisTaskSE::AliAnalysisTaskSE(const AliAnalysisTaskSE& obj):
  86     AliAnalysisTask(obj),
  87     fDebug(0),
  88     fEntry(0),
  89     fInputEvent(0x0),
  90     fInputHandler(0x0),
  91     fOutputAOD(0x0),
  92     fMCEvent(0x0),
  93     fTreeA(0x0)
  94 {
  95 // Copy constructor
  96     fDebug        = obj.fDebug;
  97     fEntry        = obj.fEntry;
  98     fInputEvent   = obj.fInputEvent;
  99     fInputHandler = obj.fInputHandler;
 100     fOutputAOD    = obj.fOutputAOD;
 101     fMCEvent      = obj.fMCEvent;
 102     fTreeA        = obj.fTreeA;
 103 }
 104
 105
 106 AliAnalysisTaskSE& AliAnalysisTaskSE::operator=(const AliAnalysisTaskSE& other)
 107 {
 108 // Assignment
 109     AliAnalysisTask::operator=(other);
 110     fDebug        = other.fDebug;
 111     fEntry        = other.fEntry;
 112     fInputEvent   = other.fInputEvent;
 113     fInputHandler = other.fInputHandler;
 114     fOutputAOD    = other.fOutputAOD;
 115     fMCEvent      = other.fMCEvent;
 116     fTreeA        = other.fTreeA;
 117     return *this;
 118 }
 119
 120
 121 void AliAnalysisTaskSE::ConnectInputData(Option_t* /*option*/)
 122 {
 123 // Connect the input data
 124     if (fDebug > 1) printf("AnalysisTaskSE::ConnectInputData() \n");
 125 //
 126 //  ESD
 127 //
 128     fInputHandler = (AliInputEventHandler*)
 129          ((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
 130 //
 131 //  Monte Carlo
 132 //
 133     AliMCEventHandler*    mcH = 0;
 134     mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
 135     if (mcH) {
 136         fMCEvent = mcH->MCEvent();
 137     }
 138
 139     if (fInputHandler) {
 140          fInputEvent = fInputHandler->GetEvent();
 141     } else if( fMCEvent ) {
 142          AliWarning("No Input Event Handler connected, only MC Truth Event Handler") ;
 143     } else {
 144          AliError("No Input Event Handler connected") ;
 145          return ;
 146     }
 147 }
 148
 149 void AliAnalysisTaskSE::CreateOutputObjects()
 150 {
 151 // Create the output container
 152 //
 153 //  Default AOD
 154     if (fDebug > 1) printf("AnalysisTaskSE::CreateOutPutData() \n");
 155
 156     AliAODHandler* handler = (AliAODHandler*)
 157          ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 158
 159     // Check if AOD replication has been required
 160
 161     if (handler) {
 162         fOutputAOD   = handler->GetAOD();
 163         fTreeA = handler->GetTree();
 164         if (!(handler->IsStandard())) {
 165             if ((handler->NeedsHeaderReplication()) && !(fgAODHeader))
 166                 {
 167                  if (fDebug > 1) AliInfo("Replicating header");
 168                  fgAODHeader = new AliAODHeader;
 169                  handler->AddBranch("AliAODHeader", &fgAODHeader);
 170                 }
 171             if ((handler->NeedsTracksBranchReplication()) && !(fgAODTracks))
 172             {
 173                 if (fDebug > 1) AliInfo("Replicating track branch\n");
 174                 fgAODTracks = new TClonesArray("AliAODTrack",500);
 175                 fgAODTracks->SetName("tracks");
 176                 handler->AddBranch("TClonesArray", &fgAODTracks);
 177             }
 178             if ((handler->NeedsVerticesBranchReplication()) && !(fgAODVertices))
 179             {
 180                 if (fDebug > 1) AliInfo("Replicating vertices branch\n");
 181                 fgAODVertices = new TClonesArray("AliAODVertex",500);
 182                 fgAODVertices->SetName("vertices");
 183                 handler->AddBranch("TClonesArray", &fgAODVertices);
 184             }
 185             if ((handler->NeedsV0sBranchReplication()) && !(fgAODV0s))
 186             {
 187                 if (fDebug > 1) AliInfo("Replicating V0s branch\n");
 188                 fgAODV0s = new TClonesArray("AliAODv0",500);
 189                 fgAODV0s->SetName("v0s");
 190                 handler->AddBranch("TClonesArray", &fgAODV0s);
 191             }
 192             if ((handler->NeedsTrackletsBranchReplication()) && !(fgAODTracklets))
 193             {
 194                 if (fDebug > 1) AliInfo("Replicating Tracklets branch\n");
 195                 fgAODTracklets = new AliAODTracklets("tracklets","tracklets");
 196                 handler->AddBranch("AliAODTracklets", &fgAODTracklets);
 197             }
 198             if ((handler->NeedsPMDClustersBranchReplication()) && !(fgAODPMDClusters))
 199             {
 200                 if (fDebug > 1) AliInfo("Replicating PMDClusters branch\n");
 201                 fgAODPMDClusters = new TClonesArray("AliAODPmdCluster",500);
 202                 fgAODPMDClusters->SetName("pmdClusters");
 203                 handler->AddBranch("TClonesArray", &fgAODPMDClusters);
 204             }
 205             if ((handler->NeedsJetsBranchReplication()) && !(fgAODJets))
 206             {
 207                 if (fDebug > 1) AliInfo("Replicating Jets branch\n");
 208                 fgAODJets = new TClonesArray("AliAODJet",500);
 209                 fgAODJets->SetName("jets");
 210                 handler->AddBranch("TClonesArray", &fgAODJets);
 211             }
 212             if ((handler->NeedsFMDClustersBranchReplication()) && !(fgAODFMDClusters))
 213             {
 214                 AliInfo("Replicating FMDClusters branch\n");
 215                 fgAODFMDClusters = new TClonesArray("AliAODFmdCluster",500);
 216                 fgAODFMDClusters->SetName("fmdClusters");
 217                 handler->AddBranch("TClonesArray", &fgAODFMDClusters);
 218             }
 219             if ((handler->NeedsCaloClustersBranchReplication()) && !(fgAODCaloClusters))
 220             {
 221                 if (fDebug > 1) AliInfo("Replicating CaloClusters branch\n");
 222                 fgAODCaloClusters = new TClonesArray("AliAODCaloCluster",500);
 223                 fgAODCaloClusters->SetName("caloClusters");
 224                 handler->AddBranch("TClonesArray", &fgAODCaloClusters);
 225             }
 226         }
 227     } else {
 228         AliWarning("No AOD Event Handler connected.") ;
 229     }
 230     UserCreateOutputObjects();
 231 }
 232
 233 void AliAnalysisTaskSE::Exec(Option_t* option)
 234 {
 235 //
 236 // Exec analysis of one event
 237     if (fDebug > 1) AliInfo("AliAnalysisTaskSE::Exec() \n");
 238
 239     if( fInputHandler ) {
 240        fEntry = fInputHandler->GetReadEntry();
 241     }
 242
 243
 244     else if( fMCEvent )
 245        fEntry = fMCEvent->Header()->GetEvent();
 246     if ( !((Entry()-1)%100) && fDebug > 0)
 247          AliInfo(Form("%s ----> Processing event # %lld", CurrentFileName(), Entry()));
 248
 249     AliAODHandler* handler = (AliAODHandler*)
 250         ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 251     AliAODInputHandler* aodH = dynamic_cast<AliAODInputHandler*>(fInputHandler);
 252
 253     if (handler && aodH) {
 254         fMCEvent = aodH->MCEvent();
 255
 256         if (!(handler->IsStandard()) && !(handler->AODIsReplicated())) {
 257             if ((handler->NeedsHeaderReplication()) && (fgAODHeader))
 258             {
 259               // copy the contents by assigment
 260               *fgAODHeader =  *(dynamic_cast<AliAODHeader*>(InputEvent()->GetHeader()));
 261             }
 262             if ((handler->NeedsTracksBranchReplication()) && (fgAODTracks))
 263             {
 264                 TClonesArray* tracks = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetTracks();
 265                 new (fgAODTracks) TClonesArray(*tracks);
 266             }
 267             if ((handler->NeedsVerticesBranchReplication()) && (fgAODVertices))
 268             {
 269                 TClonesArray* vertices = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetVertices();
 270                 new (fgAODVertices) TClonesArray(*vertices);
 271             }
 272             if ((handler->NeedsV0sBranchReplication()) && (fgAODV0s))
 273             {
 274                 TClonesArray* V0s = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetV0s();
 275                 new (fgAODV0s) TClonesArray(*V0s);
 276             }
 277             if ((handler->NeedsTrackletsBranchReplication()) && (fgAODTracklets))
 278             {
 279               *fgAODTracklets = *(dynamic_cast<AliAODEvent*>(InputEvent()))->GetTracklets();
 280             }
 281             if ((handler->NeedsPMDClustersBranchReplication()) && (fgAODPMDClusters))
 282             {
 283                 TClonesArray* PMDClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetPmdClusters();
 284                 new (fgAODPMDClusters) TClonesArray(*PMDClusters);
 285             }
 286             if ((handler->NeedsJetsBranchReplication()) && (fgAODJets))
 287             {
 288                 TClonesArray* Jets = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetJets();
 289                 new (fgAODJets) TClonesArray(*Jets);
 290             }
 291             if ((handler->NeedsFMDClustersBranchReplication()) && (fgAODFMDClusters))
 292             {
 293                 TClonesArray* FMDClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetFmdClusters();
 294                 new (fgAODFMDClusters) TClonesArray(*FMDClusters);
 295             }
 296             if ((handler->NeedsCaloClustersBranchReplication()) && (fgAODCaloClusters))
 297             {
 298                 TClonesArray* CaloClusters = (dynamic_cast<AliAODEvent*>(InputEvent()))->GetCaloClusters();
 299                 new (fgAODCaloClusters) TClonesArray(*CaloClusters);
 300             }
 301             //
 302             handler->SetAODIsReplicated();
 303
 304         }
 305     }
 306
 307 // Call the user analysis
 308     UserExec(option);
 309     // Added protection in case the derived task is not an AOD producer.
 310     AliAnalysisDataSlot *out0 = GetOutputSlot(0);
 311     if (out0 && out0->IsConnected()) PostData(0, fTreeA);
 312 }
 313
 314 const char* AliAnalysisTaskSE::CurrentFileName()
 315 {
 316 // Returns the current file name
 317     if( fInputHandler )
 318       return fInputHandler->GetTree()->GetCurrentFile()->GetName();
 319     else if( fMCEvent )
 320       return ((AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()))->TreeK()->GetCurrentFile()->GetName();
 321     else return "";
 322 }
 323
 324 void AliAnalysisTaskSE::AddAODBranch(const char* cname, void* addobj, const char *fname)
 325 {
 326     // Add a new branch to the aod tree
 327     AliAODHandler* handler = (AliAODHandler*)
 328         ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 329     if (handler) {
 330         handler->AddBranch(cname, addobj, fname);
 331     }
 332 }
 333
 334 Bool_t AliAnalysisTaskSE::IsStandardAOD() const
 335 {
 336 // Check if the output AOD handler is configured for standard or delta AOD.
 337 // Users should first check that AODEvent() returns non-null.
 338     AliAODHandler* handler = (AliAODHandler*)
 339          ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
 340     if (!handler) {
 341        Error("IsStandardAOD", "No AOD handler. Please use AODEvent() to check this first");
 342        return kTRUE;
 343     }
 344     return handler->IsStandard();
 345 }