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added method for fine tuning of TOF in Monte Carlo simulation
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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#include "AliAnalysisDataContainer.h"
30
31#include "AliESDEvent.h"
32#include "AliESDfriend.h"
33#include "AliESD.h"
34#include "AliAODEvent.h"
35#include "AliAODHeader.h"
36#include "AliAODTracklets.h"
37#include "AliAODCaloCells.h"
38#include "AliAODMCParticle.h"
39#include "AliVEvent.h"
40#include "AliAODHandler.h"
41#include "AliAODInputHandler.h"
42#include "AliMCEventHandler.h"
43#include "AliInputEventHandler.h"
44#include "AliMultiInputEventHandler.h"
45#include "AliESDInputHandler.h"
46#include "AliMCEvent.h"
47#include "AliStack.h"
48#include "AliLog.h"
49#include "AliAODDimuon.h"
50
51
52ClassImp(AliAnalysisTaskSE)
53
54////////////////////////////////////////////////////////////////////////
55AliAODHeader* AliAnalysisTaskSE::fgAODHeader = NULL;
56TClonesArray* AliAnalysisTaskSE::fgAODTracks = NULL;
57TClonesArray* AliAnalysisTaskSE::fgAODVertices = NULL;
58TClonesArray* AliAnalysisTaskSE::fgAODV0s = NULL;
59TClonesArray* AliAnalysisTaskSE::fgAODPMDClusters = NULL;
60TClonesArray* AliAnalysisTaskSE::fgAODJets = NULL;
61TClonesArray* AliAnalysisTaskSE::fgAODFMDClusters = NULL;
62TClonesArray* AliAnalysisTaskSE::fgAODCaloClusters = NULL;
63TClonesArray* AliAnalysisTaskSE::fgAODMCParticles = NULL;
64AliAODTracklets* AliAnalysisTaskSE::fgAODTracklets = NULL;
65AliAODCaloCells* AliAnalysisTaskSE::fgAODEmcalCells = NULL;
66AliAODCaloCells* AliAnalysisTaskSE::fgAODPhosCells = NULL;
67TClonesArray* AliAnalysisTaskSE::fgAODDimuons = NULL;
68
69AliAnalysisTaskSE::AliAnalysisTaskSE():
70 AliAnalysisTask(),
71 fDebug(0),
72 fEntry(0),
73 fInputEvent(0x0),
74 fESDfriend(0x0),
75 fInputHandler(0x0),
76 fOutputAOD(0x0),
77 fMCEvent(0x0),
78 fTreeA(0x0),
79 fCurrentRunNumber(-1),
80 fHistosQA(0x0),
81 fOfflineTriggerMask(0),
82 fMultiInputHandler(0),
83 fMCEventHandler(0)
84{
85 // Default constructor
86}
87
88AliAnalysisTaskSE::AliAnalysisTaskSE(const char* name):
89 AliAnalysisTask(name, "AnalysisTaskSE"),
90 fDebug(0),
91 fEntry(0),
92 fInputEvent(0x0),
93 fESDfriend(0x0),
94 fInputHandler(0x0),
95 fOutputAOD(0x0),
96 fMCEvent(0x0),
97 fTreeA(0x0),
98 fCurrentRunNumber(-1),
99 fHistosQA(0x0),
100 fOfflineTriggerMask(0),
101 fMultiInputHandler(0),
102 fMCEventHandler(0)
103{
104 // Default constructor
105 DefineInput (0, TChain::Class());
106 DefineOutput(0, TTree::Class());
107}
108
109AliAnalysisTaskSE::AliAnalysisTaskSE(const AliAnalysisTaskSE& obj):
110 AliAnalysisTask(obj),
111 fDebug(0),
112 fEntry(0),
113 fInputEvent(0x0),
114 fESDfriend(0x0),
115 fInputHandler(0x0),
116 fOutputAOD(0x0),
117 fMCEvent(0x0),
118 fTreeA(0x0),
119 fCurrentRunNumber(-1),
120 fHistosQA(0x0),
121 fOfflineTriggerMask(0),
122 fMultiInputHandler(obj.fMultiInputHandler),
123 fMCEventHandler(obj.fMCEventHandler)
124{
125// Copy constructor
126 fDebug = obj.fDebug;
127 fEntry = obj.fEntry;
128 fInputEvent = obj.fInputEvent;
129 fESDfriend = obj.fESDfriend;
130 fInputHandler = obj.fInputHandler;
131 fOutputAOD = obj.fOutputAOD;
132 fMCEvent = obj.fMCEvent;
133 fTreeA = obj.fTreeA;
134 fCurrentRunNumber = obj.fCurrentRunNumber;
135 fHistosQA = obj.fHistosQA;
136
137}
138
139
140AliAnalysisTaskSE& AliAnalysisTaskSE::operator=(const AliAnalysisTaskSE& other)
141{
142// Assignment
143 AliAnalysisTask::operator=(other);
144 fDebug = other.fDebug;
145 fEntry = other.fEntry;
146 fInputEvent = other.fInputEvent;
147 fESDfriend = other.fESDfriend;
148 fInputHandler = other.fInputHandler;
149 fOutputAOD = other.fOutputAOD;
150 fMCEvent = other.fMCEvent;
151 fTreeA = other.fTreeA;
152 fCurrentRunNumber = other.fCurrentRunNumber;
153 fHistosQA = other.fHistosQA;
154 fOfflineTriggerMask = other.fOfflineTriggerMask;
155 fMultiInputHandler = other.fMultiInputHandler;
156 fMCEventHandler = other.fMCEventHandler;
157 return *this;
158}
159
160//______________________________________________________________________________
161Bool_t AliAnalysisTaskSE::CheckPostData() const
162{
163// Checks if data was posted to all outputs defined by the task. If task does
164// not have output slots this returns always kTRUE.
165 AliAnalysisDataContainer *coutput;
166 AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
167 for (Int_t islot=1; islot<fNoutputs; islot++) {
168 coutput = GetOutputSlot(islot)->GetContainer();
169 if (!mgr->GetOutputs()->FindObject(coutput)) continue;
170 if (!coutput->GetData()) return kFALSE;
171 }
172 CheckOwnership();
173 return kTRUE;
174}
175
176void AliAnalysisTaskSE::ConnectInputData(Option_t* /*option*/)
177{
178// Connect the input data
179 if (fDebug > 1) printf("AnalysisTaskSE::ConnectInputData() \n");
180
181 // Connect input handlers (multi input handler is handled)
182 ConnectMultiHandler();
183
184 if (fInputHandler) {
185 if ((fInputHandler->GetTree())->GetBranch("ESDfriend."))
186 fESDfriend = ((AliESDInputHandler*)fInputHandler)->GetESDfriend();
187
188 fInputEvent = fInputHandler->GetEvent();
189 } else if( fMCEvent ) {
190 AliWarning("No Input Event Handler connected, only MC Truth Event Handler") ;
191 } else {
192 AliError("No Input Event Handler connected") ;
193 return ;
194 }
195 // Disconnect multi handler
196 DisconnectMultiHandler();
197}
198
199void AliAnalysisTaskSE::CreateOutputObjects()
200{
201// Create the output container
202//
203// Default AOD
204 if (fDebug > 1) printf("AnalysisTaskSE::CreateOutPutData() \n");
205
206 AliAODHandler* handler = dynamic_cast<AliAODHandler*>
207 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
208
209 Bool_t merging = kFALSE;
210 AliAODInputHandler* aodIH = static_cast<AliAODInputHandler*>((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
211 if (aodIH) {
212 if (aodIH->GetMergeEvents()) merging = kTRUE;
213 }
214
215
216 // Check if AOD replication has been required
217
218 if (handler) {
219 fOutputAOD = handler->GetAOD();
220 fTreeA = handler->GetTree();
221 if (fOutputAOD && !(handler->IsStandard())) {
222 if ((handler->NeedsHeaderReplication()) && !(fgAODHeader))
223 {
224 if (fDebug > 1) AliInfo("Replicating header");
225 fgAODHeader = new AliAODHeader;
226 handler->AddBranch("AliAODHeader", &fgAODHeader);
227 }
228 if ((handler->NeedsTracksBranchReplication() || merging) && !(fgAODTracks))
229 {
230 if (fDebug > 1) AliInfo("Replicating track branch\n");
231 fgAODTracks = new TClonesArray("AliAODTrack",500);
232 fgAODTracks->SetName("tracks");
233 handler->AddBranch("TClonesArray", &fgAODTracks);
234 }
235 if ((handler->NeedsVerticesBranchReplication() || merging) && !(fgAODVertices))
236 {
237 if (fDebug > 1) AliInfo("Replicating vertices branch\n");
238 fgAODVertices = new TClonesArray("AliAODVertex",500);
239 fgAODVertices->SetName("vertices");
240 handler->AddBranch("TClonesArray", &fgAODVertices);
241 }
242 if ((handler->NeedsV0sBranchReplication()) && !(fgAODV0s))
243 {
244 if (fDebug > 1) AliInfo("Replicating V0s branch\n");
245 fgAODV0s = new TClonesArray("AliAODv0",500);
246 fgAODV0s->SetName("v0s");
247 handler->AddBranch("TClonesArray", &fgAODV0s);
248 }
249 if ((handler->NeedsTrackletsBranchReplication()) && !(fgAODTracklets))
250 {
251 if (fDebug > 1) AliInfo("Replicating Tracklets branch\n");
252 fgAODTracklets = new AliAODTracklets("tracklets","tracklets");
253 handler->AddBranch("AliAODTracklets", &fgAODTracklets);
254 }
255 if ((handler->NeedsPMDClustersBranchReplication()) && !(fgAODPMDClusters))
256 {
257 if (fDebug > 1) AliInfo("Replicating PMDClusters branch\n");
258 fgAODPMDClusters = new TClonesArray("AliAODPmdCluster",500);
259 fgAODPMDClusters->SetName("pmdClusters");
260 handler->AddBranch("TClonesArray", &fgAODPMDClusters);
261 }
262 if ((handler->NeedsJetsBranchReplication() || merging) && !(fgAODJets))
263 {
264 if (fDebug > 1) AliInfo("Replicating Jets branch\n");
265 fgAODJets = new TClonesArray("AliAODJet",500);
266 fgAODJets->SetName("jets");
267 handler->AddBranch("TClonesArray", &fgAODJets);
268 }
269 if ((handler->NeedsFMDClustersBranchReplication()) && !(fgAODFMDClusters))
270 {
271 AliInfo("Replicating FMDClusters branch\n");
272 fgAODFMDClusters = new TClonesArray("AliAODFmdCluster",500);
273 fgAODFMDClusters->SetName("fmdClusters");
274 handler->AddBranch("TClonesArray", &fgAODFMDClusters);
275 }
276 if ((handler->NeedsCaloClustersBranchReplication() || merging) && !(fgAODCaloClusters))
277 {
278 if (fDebug > 1) AliInfo("Replicating CaloClusters branch\n");
279 fgAODCaloClusters = new TClonesArray("AliAODCaloCluster",500);
280 fgAODCaloClusters->SetName("caloClusters");
281 handler->AddBranch("TClonesArray", &fgAODCaloClusters);
282
283 fgAODEmcalCells = new AliAODCaloCells();
284 fgAODEmcalCells->SetName("emcalCells");
285 handler->AddBranch("AliAODCaloCells", &fgAODEmcalCells);
286
287 fgAODPhosCells = new AliAODCaloCells();
288 fgAODPhosCells->SetName("phosCells");
289 handler->AddBranch("AliAODCaloCells", &fgAODPhosCells);
290 }
291 if ((handler->NeedsMCParticlesBranchReplication() || merging) && !(fgAODMCParticles))
292 {
293 if (fDebug > 1) AliInfo("Replicating MCParticles branch\n");
294 fgAODMCParticles = new TClonesArray("AliAODMCParticle",500);
295 fgAODMCParticles->SetName("mcparticles");
296 handler->AddBranch("TClonesArray", &fgAODMCParticles);
297 }
298 if ((handler->NeedsDimuonsBranchReplication() || merging) && !(fgAODDimuons))
299 {
300 if (fDebug > 1) AliInfo("Replicating dimuon branch\n");
301 fgAODDimuons = new TClonesArray("AliAODDimuon",0);
302 fgAODDimuons->SetName("dimuons");
303 handler->AddBranch("TClonesArray", &fgAODDimuons);
304 }
305
306 // cache the pointerd in the AODEvent
307 fOutputAOD->GetStdContent();
308 }
309 }
310 ConnectMultiHandler();
311 UserCreateOutputObjects();
312 DisconnectMultiHandler();
313}
314
315void AliAnalysisTaskSE::Exec(Option_t* option)
316{
317//
318// Exec analysis of one event
319
320 ConnectMultiHandler();
321
322 if ( fDebug >= 10)
323 printf("Task is active %5d\n", IsActive());
324
325 if (fDebug > 1) AliInfo("AliAnalysisTaskSE::Exec() \n");
326//
327 AliAODHandler* handler = dynamic_cast<AliAODHandler*>
328 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
329
330 AliAODInputHandler* aodH = dynamic_cast<AliAODInputHandler*>(fInputHandler);
331//
332// Was event selected ? If no event selection mechanism, the event SHOULD be selected (AG)
333 UInt_t isSelected = AliVEvent::kAny;
334 if( fInputHandler && fInputHandler->GetEventSelection()) {
335 // Get the actual offline trigger mask for the event and AND it with the
336 // requested mask. If no mask requested select by default the event.
337 if (fOfflineTriggerMask)
338 isSelected = fOfflineTriggerMask & fInputHandler->IsEventSelected();
339 }
340// Functionality below moved in the filter tasks (AG)
341// if (handler) handler->SetFillAOD(isSelected);
342
343 if( fInputHandler ) {
344 fEntry = fInputHandler->GetReadEntry();
345 fESDfriend = ((AliESDInputHandler*)fInputHandler)->GetESDfriend();
346 }
347
348
349// Notify the change of run number
350 if (InputEvent() && (InputEvent()->GetRunNumber() != fCurrentRunNumber)) {
351 fCurrentRunNumber = InputEvent()->GetRunNumber();
352 NotifyRun();
353 }
354
355 else if( fMCEvent )
356 fEntry = fMCEvent->Header()->GetEvent();
357 if ( !((Entry()-1)%100) && fDebug > 0)
358 AliInfo(Form("%s ----> Processing event # %lld", CurrentFileName(), Entry()));
359
360
361
362
363 if (handler && aodH) {
364 fMCEvent = aodH->MCEvent();
365 Bool_t merging = aodH->GetMergeEvents();
366 AliAODEvent* aod = dynamic_cast<AliAODEvent*>(InputEvent());
367
368 if (aod && !(handler->IsStandard()) && !(handler->AODIsReplicated())) {
369 if ((handler->NeedsHeaderReplication()) && (fgAODHeader))
370 {
371 // copy the contents by assigment
372 *fgAODHeader = *(aod->GetHeader());
373 }
374 if ((handler->NeedsTracksBranchReplication() || merging) && (fgAODTracks))
375 {
376 TClonesArray* tracks = aod->GetTracks();
377 new (fgAODTracks) TClonesArray(*tracks);
378 }
379 if ((handler->NeedsVerticesBranchReplication() || merging) && (fgAODVertices))
380 {
381 TClonesArray* vertices = aod->GetVertices();
382 new (fgAODVertices) TClonesArray(*vertices);
383 }
384 if ((handler->NeedsV0sBranchReplication()) && (fgAODV0s))
385 {
386 TClonesArray* v0s = aod->GetV0s();
387 new (fgAODV0s) TClonesArray(*v0s);
388 }
389 if ((handler->NeedsTrackletsBranchReplication()) && (fgAODTracklets))
390 {
391 *fgAODTracklets = *aod->GetTracklets();
392 }
393 if ((handler->NeedsPMDClustersBranchReplication()) && (fgAODPMDClusters))
394 {
395 TClonesArray* pmdClusters = aod->GetPmdClusters();
396 new (fgAODPMDClusters) TClonesArray(*pmdClusters);
397 }
398 if ((handler->NeedsJetsBranchReplication() || merging) && (fgAODJets))
399 {
400 TClonesArray* jets = aod->GetJets();
401 new (fgAODJets) TClonesArray(*jets);
402 }
403 if ((handler->NeedsFMDClustersBranchReplication()) && (fgAODFMDClusters))
404 {
405 TClonesArray* fmdClusters = aod->GetFmdClusters();
406 new (fgAODFMDClusters) TClonesArray(*fmdClusters);
407 }
408 if ((handler->NeedsCaloClustersBranchReplication() || merging) && (fgAODCaloClusters))
409 {
410 TClonesArray* caloClusters = aod->GetCaloClusters();
411 new (fgAODCaloClusters) TClonesArray(*caloClusters);
412 }
413
414 if ((handler->NeedsMCParticlesBranchReplication() || merging) && (fgAODMCParticles))
415 {
416 TClonesArray* mcParticles = (TClonesArray*) (aod->FindListObject("mcparticles"));
417 new (fgAODMCParticles) TClonesArray(*mcParticles);
418 }
419
420 if ((handler->NeedsDimuonsBranchReplication() || merging) && (fgAODDimuons))
421 {
422 fgAODDimuons->Clear();
423 TClonesArray& dimuons = *fgAODDimuons;
424 TClonesArray& tracksnew = *fgAODTracks;
425
426 Int_t nMuonTrack[100];
427 for(Int_t imuon = 0; imuon < 100; imuon++) nMuonTrack[imuon] = 0;
428 Int_t nMuons=0;
429 for(Int_t ii=0; ii < fgAODTracks->GetEntries(); ii++){
430 AliAODTrack *track = (AliAODTrack*) fgAODTracks->At(ii);
431 if(track->IsMuonTrack()) {
432 nMuonTrack[nMuons]= ii;
433 nMuons++;
434 }
435 }
436 Int_t jDimuons=0;
437 if(nMuons >= 2){
438 for(Int_t i = 0; i < nMuons; i++){
439 Int_t index0 = nMuonTrack[i];
440 for(Int_t j = i+1; j < nMuons; j++){
441 Int_t index1 = nMuonTrack[j];
442 tracksnew.At(index0)->ResetBit(kIsReferenced);
443 tracksnew.At(index0)->SetUniqueID(0);
444 tracksnew.At(index1)->ResetBit(kIsReferenced);
445 tracksnew.At(index1)->SetUniqueID(0);
446 new(dimuons[jDimuons++]) AliAODDimuon(tracksnew.At(index0),tracksnew.At(index1));
447 }
448 }
449 }
450 }
451
452 // Additional merging if needed
453 if (merging) {
454 // mcParticles
455 TClonesArray* mcparticles = (TClonesArray*) ((aodH->GetEventToMerge())->FindListObject("mcparticles"));
456 Int_t npart = mcparticles->GetEntries();
457 Int_t nc = fgAODMCParticles->GetEntries();
458 Int_t nc0 = nc;
459
460 for (Int_t i = 0; i < npart; i++) {
461 AliAODMCParticle* particle = (AliAODMCParticle*) mcparticles->At(i);
462 new((*fgAODMCParticles)[nc++]) AliAODMCParticle(*particle);
463 }
464
465 // tracks
466 TClonesArray* tracks = aodH->GetEventToMerge()->GetTracks();
467 Int_t ntr = tracks->GetEntries();
468 nc = fgAODTracks->GetEntries();
469 for (Int_t i = 0; i < ntr; i++) {
470 AliAODTrack* track = (AliAODTrack*) tracks->At(i);
471 AliAODTrack* newtrack = new((*fgAODTracks)[nc++]) AliAODTrack(*track);
472 newtrack->SetLabel(newtrack->GetLabel() + nc0);
473 }
474
475 for (Int_t i = 0; i < nc; i++)
476 {
477 AliAODTrack* track = (AliAODTrack*) fgAODTracks->At(i);
478 track->ResetBit(kIsReferenced);
479 track->SetUniqueID(0);
480 }
481
482
483 // clusters
484 TClonesArray* clusters = aodH->GetEventToMerge()->GetCaloClusters();
485 Int_t ncl = clusters->GetEntries();
486 nc = fgAODCaloClusters->GetEntries();
487 for (Int_t i = 0; i < ncl; i++) {
488 AliAODCaloCluster* cluster = (AliAODCaloCluster*) clusters->At(i);
489 new((*fgAODCaloClusters)[nc++]) AliAODCaloCluster(*cluster);
490 }
491 // cells
492 AliAODCaloCells* cellsA = aodH->GetEventToMerge()->GetEMCALCells();
493 Int_t ncells = cellsA->GetNumberOfCells();
494 nc = fgAODEmcalCells->GetNumberOfCells();
495
496 for (Int_t i = 0; i < ncells; i++) {
497 Int_t cn = cellsA->GetCellNumber(i);
498 Int_t pos = fgAODEmcalCells->GetCellPosition(cn);
499 if (pos >= 0) {
500 Double_t amp = cellsA->GetAmplitude(i) + fgAODEmcalCells->GetAmplitude(pos);
501 fgAODEmcalCells->SetCell(pos, cn, amp);
502 } else {
503 Double_t amp = cellsA->GetAmplitude(i);
504 fgAODEmcalCells->SetCell(nc++, cn, amp);
505 fgAODEmcalCells->Sort();
506 }
507 }
508
509
510 } // merging
511
512 handler->SetAODIsReplicated();
513 }
514 }
515
516// Call the user analysis
517 if (!fMCEventHandler) {
518 if (isSelected)
519 UserExec(option);
520 } else {
521 if (isSelected && (fMCEventHandler->InitOk()))
522 UserExec(option);
523 }
524
525// Added protection in case the derived task is not an AOD producer.
526 AliAnalysisDataSlot *out0 = GetOutputSlot(0);
527 if (out0 && out0->IsConnected()) PostData(0, fTreeA);
528
529 DisconnectMultiHandler();
530}
531
532const char* AliAnalysisTaskSE::CurrentFileName()
533{
534// Returns the current file name
535 if( fInputHandler )
536 return fInputHandler->GetTree()->GetCurrentFile()->GetName();
537 else if( fMCEvent )
538 return ((AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()))->TreeK()->GetCurrentFile()->GetName();
539 else return "";
540}
541
542void AliAnalysisTaskSE::AddAODBranch(const char* cname, void* addobj, const char *fname)
543{
544 // Add a new branch to the aod tree
545 AliAODHandler* handler = dynamic_cast<AliAODHandler*>
546 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
547 if (handler) {
548 handler->AddBranch(cname, addobj, fname);
549 }
550}
551
552Bool_t AliAnalysisTaskSE::IsStandardAOD() const
553{
554// Check if the output AOD handler is configured for standard or delta AOD.
555// Users should first check that AODEvent() returns non-null.
556 AliAODHandler* handler = dynamic_cast<AliAODHandler*>
557 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
558 if (!handler) {
559 Error("IsStandardAOD", "No AOD handler. Please use AODEvent() to check this first");
560 return kTRUE;
561 }
562 return handler->IsStandard();
563}
564
565Bool_t AliAnalysisTaskSE::Notify()
566{
567 return (UserNotify());
568}
569
570const AliEventTag *AliAnalysisTaskSE::EventTag() const
571{
572// Returns tag for the current event, if any. The return value should always be checked by the user.
573 if (!fInputHandler) {
574 Error("EventTag", "Input handler not yet available. Call this in UserExec");
575 return NULL;
576 }
577 return fInputHandler->GetEventTag();
578}
579
580void AliAnalysisTaskSE::LoadBranches() const
581{
582// Load all branches declared in fBranchNames data member of the parent class.
583// Should be called in UserExec.
584 if (!fInputHandler) {
585 Error("LoadBranches", "Input handler not available yet. Call this in UserExec");
586 return;
587 }
588 AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
589 if (mgr->GetAutoBranchLoading()) return;
590 TString taskbranches;
591 GetBranches(fInputHandler->GetDataType(), taskbranches);
592 if (taskbranches.IsNull()) return;
593 TObjArray *arr = taskbranches.Tokenize(",");
594 TIter next(arr);
595 TObject *obj;
596 while ((obj=next())) mgr->LoadBranch(obj->GetName());
597}
598
599
600//_________________________________________________________________________________________________
601void AliAnalysisTaskSE::ConnectMultiHandler()
602{
603 //
604 // Connect MultiHandler
605 //
606 fInputHandler = (AliInputEventHandler *)((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
607 fMultiInputHandler = dynamic_cast<AliMultiInputEventHandler *>(fInputHandler);
608 if (fMultiInputHandler) {
609 fInputHandler = dynamic_cast<AliInputEventHandler *>(fMultiInputHandler->GetFirstInputEventHandler());
610 fMCEventHandler = dynamic_cast<AliMCEventHandler *>(fMultiInputHandler->GetFirstMCEventHandler());
611 } else {
612 fMCEventHandler = dynamic_cast<AliMCEventHandler *>((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
613 }
614 if (fMCEventHandler) fMCEvent = fMCEventHandler->MCEvent();
615}
616
617//_________________________________________________________________________________________________
618void AliAnalysisTaskSE::DisconnectMultiHandler()
619{
620 //
621 // Disconnect MultiHandler
622 //
623 if (fMultiInputHandler) fInputHandler = fMultiInputHandler;
624}