1 /**************************************************************************
2 * Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
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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 **************************************************************************/
18 //-------------------------------------------------------------------------
19 // Implementation of the Virtual Event Handler Interface for AOD
20 // Author: Andreas Morsch, CERN
21 //-------------------------------------------------------------------------
31 #include "AliAODHandler.h"
32 #include "AliAODEvent.h"
33 #include "AliAODTracklets.h"
35 #include "AliAODMCParticle.h"
36 #include "AliAODMCHeader.h"
37 #include "AliMCEventHandler.h"
38 #include "AliMCEvent.h"
39 #include "AliGenEventHeader.h"
40 #include "AliGenHijingEventHeader.h"
41 #include "AliGenDPMjetEventHeader.h"
42 #include "AliGenPythiaEventHeader.h"
43 #include "AliGenCocktailEventHeader.h"
47 ClassImp(AliAODHandler)
49 //______________________________________________________________________________
50 AliAODHandler::AliAODHandler() :
54 fNeedsHeaderReplication(kFALSE),
55 fNeedsTracksBranchReplication(kFALSE),
56 fNeedsVerticesBranchReplication(kFALSE),
57 fNeedsV0sBranchReplication(kFALSE),
58 fNeedsTrackletsBranchReplication(kFALSE),
59 fNeedsPMDClustersBranchReplication(kFALSE),
60 fNeedsJetsBranchReplication(kFALSE),
61 fNeedsFMDClustersBranchReplication(kFALSE),
62 fNeedsCaloClustersBranchReplication(kFALSE),
63 fAODIsReplicated(kFALSE),
71 // default constructor
74 //______________________________________________________________________________
75 AliAODHandler::AliAODHandler(const char* name, const char* title):
76 AliVEventHandler(name, title),
79 fNeedsHeaderReplication(kFALSE),
80 fNeedsTracksBranchReplication(kFALSE),
81 fNeedsVerticesBranchReplication(kFALSE),
82 fNeedsV0sBranchReplication(kFALSE),
83 fNeedsTrackletsBranchReplication(kFALSE),
84 fNeedsPMDClustersBranchReplication(kFALSE),
85 fNeedsJetsBranchReplication(kFALSE),
86 fNeedsFMDClustersBranchReplication(kFALSE),
87 fNeedsCaloClustersBranchReplication(kFALSE),
88 fAODIsReplicated(kFALSE),
98 //______________________________________________________________________________
99 AliAODHandler::~AliAODHandler()
104 // is already handled in TerminateIO
109 if (fExtensions) delete fExtensions;
112 //______________________________________________________________________________
113 Bool_t AliAODHandler::Init(Option_t* opt)
117 // Create the AODevent object
119 fAODEvent = new AliAODEvent();
120 if (fIsStandard) fAODEvent->CreateStdContent();
123 // File opening according to execution mode
126 if (option.Contains("proof")) {
128 if (option.Contains("special")) {
129 // File for tree already opened on slave -> merging via files
133 // Merging in memory (not needed anymore)
138 TDirectory *owd = gDirectory;
139 fFileA = new TFile(fFileName.Data(), "RECREATE");
144 TIter next(fExtensions);
145 AliAODExtension *ext;
146 while ((ext=(AliAODExtension*)next())) ext->Init(option);
151 //______________________________________________________________________________
152 void AliAODHandler::StoreMCParticles(){
155 // Remap the labels from ESD stack and store
156 // the AODMCParticles, makes only sense if we have
157 // the mcparticles branch
158 // has to be done here since we cannot know in advance
159 // which particles are needed (e.g. by the tracks etc.)
161 // Particles have been selected by AliMCEventhanlder->SelectParticle()
162 // To use the MCEventhandler here we need to set it from the outside
163 // can vanish when Handler go to the ANALYSISalice library
165 // The Branch booking for mcParticles and mcHeader has to happen
166 // in an external task for now since the AODHandler does not have access
167 // the AnalysisManager. For the same reason the pointer t o the MCEventH
168 // has to passed to the AOD Handler by this task
169 // (doing this in the steering macro would not work on PROOF)
171 TClonesArray *mcarray = (TClonesArray*)fAODEvent->FindListObject(AliAODMCParticle::StdBranchName());
175 AliAODMCHeader *mcHeader = (AliAODMCHeader*)fAODEvent->FindListObject(AliAODMCHeader::StdBranchName());
180 // Get the MC Infos.. Handler needs to be set before
181 // while adding the branch
182 // This needs to be done, not to depend on the AnalysisManager
184 if(!fMCEventH)return;
185 if(!fMCEventH->MCEvent())return;
186 AliStack *pStack = fMCEventH->MCEvent()->Stack();
189 fMCEventH->CreateLabelMap();
192 // Get the Event Header
195 AliHeader* header = fMCEventH->MCEvent()->Header();
199 AliGenEventHeader* genHeader = header->GenEventHeader();
201 genHeader->PrimaryVertex(vtxMC);
202 mcHeader->SetVertex(vtxMC[0],vtxMC[1],vtxMC[2]);
204 // we search the MCEventHeaders first
205 // Two cases, cocktail or not...
206 AliGenCocktailEventHeader* genCocktailHeader = dynamic_cast<AliGenCocktailEventHeader*>(genHeader);
207 if(genCocktailHeader){
208 // we have a coktail header
209 mcHeader->AddGeneratorName(genHeader->GetName());
210 // Loop from the back so that the first one sets the process type
211 TList* headerList = genCocktailHeader->GetHeaders();
212 for(int i = headerList->GetEntries()-1;i>=0;--i){
213 AliGenEventHeader *headerEntry = dynamic_cast<AliGenEventHeader*>(headerList->At(i));
214 SetMCHeaderInfo(mcHeader,headerEntry);
218 // No Cocktail just take the first one
219 SetMCHeaderInfo(mcHeader,genHeader);
225 // Store the AliAODParticlesMC
227 Int_t np = pStack->GetNtrack();
228 Int_t nprim = pStack->GetNprimary();
232 TClonesArray& l = *mcarray;
234 for(int i = 0;i < np;++i){
235 if(fMCEventH->IsParticleSelected(i)){
238 TParticle *part = pStack->Particle(i);
239 if(i<nprim)flag |= AliAODMCParticle::kPrimary;
240 if(pStack->IsPhysicalPrimary(i))flag |= AliAODMCParticle::kPhysicalPrim;
242 if(fMCEventH->GetNewLabel(i)!=j){
243 AliError(Form("MISMATCH New label %d j: %d",fMCEventH->GetNewLabel(i),j));
245 AliAODMCParticle mcpart_tmp(part,i,flag);
248 Int_t d0 = mcpart_tmp.GetDaughter(0);
249 Int_t d1 = mcpart_tmp.GetDaughter(1);
250 Int_t m = mcpart_tmp.GetMother();
252 // other than for the track labels, negative values mean
253 // no daughter/mother so preserve it
256 // no first daughter -> no second daughter
257 // nothing to be done
258 // second condition not needed just for sanity check at the end
259 mcpart_tmp.SetDaughter(0,d0);
260 mcpart_tmp.SetDaughter(1,d1);
262 else if(d1 < 0 && d0 >= 0){
264 // second condition not needed just for sanity check at the end
265 if(fMCEventH->IsParticleSelected(d0)){
266 mcpart_tmp.SetDaughter(0,fMCEventH->GetNewLabel(d0));
269 mcpart_tmp.SetDaughter(0,-1);
271 mcpart_tmp.SetDaughter(1,d1);
273 else if (d0 > 0 && d1 > 0 ){
274 // we have two or more daughters loop on the stack to see if they are
278 for(int id = d0; id<=d1;++id){
279 if(fMCEventH->IsParticleSelected(id)){
282 d0_tmp = fMCEventH->GetNewLabel(id);
283 d1_tmp = d0_tmp; // this is to have the same schema as on the stack i.e. with one daugther d0 and d1 are the same
285 else d1_tmp = fMCEventH->GetNewLabel(id);
288 mcpart_tmp.SetDaughter(0,d0_tmp);
289 mcpart_tmp.SetDaughter(1,d1_tmp);
292 AliError(Form("Unxpected indices %d %d",d0,d1));
296 mcpart_tmp.SetMother(m);
299 if(fMCEventH->IsParticleSelected(m))mcpart_tmp.SetMother(fMCEventH->GetNewLabel(m));
300 else AliError("PROBLEM Mother not selected");
303 new (l[j++]) AliAODMCParticle(mcpart_tmp);
307 AliInfo(Form("AliAODHandler::StoreMCParticles: Selected %d (Primaries %d / total %d) after validation",
310 // Set the labels in the AOD output...
314 TClonesArray* tracks = fAODEvent->GetTracks();
316 for(int it = 0; it < fAODEvent->GetNTracks();++it){
317 AliAODTrack *track = fAODEvent->GetTrack(it);
319 if(TMath::Abs(track->GetLabel())>np||track->GetLabel()==0){
320 AliWarning(Form("Wrong ESD track label %d",track->GetLabel()));
322 if(fMCEventH->GetNewLabel(track->GetLabel())==0){
323 AliWarning(Form("New label not found for %d",track->GetLabel()));
325 track->SetLabel(fMCEventH->GetNewLabel(track->GetLabel()));
330 TClonesArray *clusters = fAODEvent->GetCaloClusters();
332 for (Int_t iClust = 0;iClust < fAODEvent->GetNCaloClusters(); ++iClust) {
333 AliAODCaloCluster * cluster = fAODEvent->GetCaloCluster(iClust);
334 UInt_t nLabel = cluster->GetNLabel();
335 // Ugly but do not want to fragment memory by creating
336 // new Int_t (nLabel)
337 Int_t* labels = const_cast<Int_t*>(cluster->GetLabels());
339 for(UInt_t i = 0;i < nLabel;++i){
340 labels[i] = fMCEventH->GetNewLabel(cluster->GetLabel(i));
343 // cluster->SetLabels(labels,nLabel);
348 AliAODTracklets *tracklets = fAODEvent->GetTracklets();
350 for(int it = 0;it < tracklets->GetNumberOfTracklets();++it){
351 int label0 = tracklets->GetLabel(it,0);
352 int label1 = tracklets->GetLabel(it,1);
353 if(label0>=0)label0 = fMCEventH->GetNewLabel(label0);
354 if(label1>=0)label1 = fMCEventH->GetNewLabel(label1);
355 tracklets->SetLabel(it,0,label0);
356 tracklets->SetLabel(it,1,label1);
362 //______________________________________________________________________________
363 Bool_t AliAODHandler::FinishEvent()
365 // Fill data structures
367 fAODEvent->MakeEntriesReferencable();
371 TIter next(fExtensions);
372 AliAODExtension *ext;
373 while ((ext=(AliAODExtension*)next())) {
374 ext->GetAOD()->MakeEntriesReferencable();
375 ext->GetTree()->Fill();
380 if (fIsStandard) fAODEvent->ResetStd();
381 // Reset AOD replication flag
382 fAODIsReplicated = kFALSE;
386 //______________________________________________________________________________
387 Bool_t AliAODHandler::Terminate()
390 AddAODtoTreeUserInfo();
392 TIter next(fExtensions);
393 AliAODExtension *ext;
394 while ((ext=(AliAODExtension*)next())) ext->GetTree()->GetUserInfo()->Add(ext->GetAOD());
399 //______________________________________________________________________________
400 Bool_t AliAODHandler::TerminateIO()
409 TIter next(fExtensions);
410 AliAODExtension *ext;
411 while ((ext=(AliAODExtension*)next())) ext->TerminateIO();
416 //______________________________________________________________________________
417 void AliAODHandler::CreateTree(Int_t flag)
419 // Creates the AOD Tree
420 fTreeA = new TTree("aodTree", "AliAOD tree");
421 fTreeA->Branch(fAODEvent->GetList());
422 TRef junk = (TObject*)fTreeA->BranchRef();
423 if (flag == 0) fTreeA->SetDirectory(0);
426 //______________________________________________________________________________
427 void AliAODHandler::FillTree()
433 //______________________________________________________________________________
434 void AliAODHandler::AddAODtoTreeUserInfo()
436 // Add aod event to tree user info
437 fTreeA->GetUserInfo()->Add(fAODEvent);
440 //______________________________________________________________________________
441 void AliAODHandler::AddBranch(const char* cname, void* addobj, const char* filename)
443 // Add a new branch to the aod. Added optional filename parameter if the
444 // branch should be written to a separate file.
445 if (strlen(filename)) {
446 AliAODExtension *ext = AddExtension(filename);
447 ext->AddBranch(cname, addobj);
450 TDirectory *owd = gDirectory;
454 char** apointer = (char**) addobj;
455 TObject* obj = (TObject*) *apointer;
457 fAODEvent->AddObject(obj);
459 const Int_t kSplitlevel = 99; // default value in TTree::Branch()
460 const Int_t kBufsize = 32000; // default value in TTree::Branch()
462 if (!fTreeA->FindBranch(obj->GetName())) {
463 // Do the same as if we book via
464 // TTree::Branch(TCollection*)
466 fTreeA->Bronch(obj->GetName(), cname, fAODEvent->GetList()->GetObjectRef(obj),
467 kBufsize, kSplitlevel - 1);
468 // fTreeA->Branch(obj->GetName(), cname, addobj);
473 //______________________________________________________________________________
474 AliAODExtension *AliAODHandler::AddExtension(const char *filename, const char *title)
476 // Add an AOD extension with some branches in a different file.
477 TString fname(filename);
478 if (!fname.EndsWith(".root")) fname += ".root";
480 fExtensions = new TObjArray();
481 fExtensions->SetOwner();
483 AliAODExtension *ext = (AliAODExtension*)fExtensions->FindObject(fname);
485 ext = new AliAODExtension(fname, title);
486 fExtensions->Add(ext);
491 //______________________________________________________________________________
492 void AliAODHandler::SetOutputFileName(const char* fname)
498 //______________________________________________________________________________
499 const char *AliAODHandler::GetOutputFileName()
502 return fFileName.Data();
505 //______________________________________________________________________________
506 void AliAODHandler::SetMCHeaderInfo(AliAODMCHeader *mcHeader,AliGenEventHeader *genHeader){
509 // Utility function to cover different cases for the AliGenEventHeader
510 // Needed since different ProcessType and ImpactParamter are not
511 // in the base class...
512 // We don't encode process types for event cocktails yet
513 // could be done e.g. by adding offsets depnding on the generator
515 mcHeader->AddGeneratorName(genHeader->GetName());
516 if(!genHeader)return;
517 AliGenPythiaEventHeader *pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(genHeader);
518 if (pythiaGenHeader) {
519 mcHeader->SetEventType(pythiaGenHeader->ProcessType());
523 AliGenDPMjetEventHeader* dpmJetGenHeader = dynamic_cast<AliGenDPMjetEventHeader*>(genHeader);
525 if (dpmJetGenHeader){
526 mcHeader->SetEventType(dpmJetGenHeader->ProcessType());
530 AliGenHijingEventHeader* hijingGenHeader = dynamic_cast<AliGenHijingEventHeader*>(genHeader);
532 mcHeader->SetImpactParameter(hijingGenHeader->ImpactParameter());
536 AliWarning(Form("MC Eventheader not known: %s",genHeader->GetName()));
540 ClassImp(AliAODExtension)
542 //-------------------------------------------------------------------------
543 // Support class for AOD extensions. This is created by the user analysis
544 // that requires a separate file for some AOD branches. The name of the
545 // AliAODExtension object is the file name where the AOD branches will be
547 //-------------------------------------------------------------------------
549 //______________________________________________________________________________
550 AliAODExtension::~AliAODExtension()
555 // is already handled in TerminateIO
562 //______________________________________________________________________________
563 void AliAODExtension::AddBranch(const char* cname, void* addobj)
565 // Add a new branch to the aod
566 if (!fAODEvent) Init("");
567 TDirectory *owd = gDirectory;
571 char** apointer = (char**) addobj;
572 TObject* obj = (TObject*) *apointer;
574 fAODEvent->AddObject(obj);
576 const Int_t kSplitlevel = 99; // default value in TTree::Branch()
577 const Int_t kBufsize = 32000; // default value in TTree::Branch()
579 if (!fTreeE->FindBranch(obj->GetName())) {
580 // Do the same as if we book via
581 // TTree::Branch(TCollection*)
583 fTreeE->Bronch(obj->GetName(), cname, fAODEvent->GetList()->GetObjectRef(obj),
584 kBufsize, kSplitlevel - 1);
585 // fTreeA->Branch(obj->GetName(), cname, addobj);
590 //______________________________________________________________________________
591 Bool_t AliAODExtension::Init(Option_t */*option*/)
594 if(!fAODEvent) fAODEvent = new AliAODEvent();
595 TDirectory *owd = gDirectory;
596 fFileE = new TFile(GetName(), "RECREATE");
597 fTreeE = new TTree("aodTree", "AliAOD tree");
598 fTreeE->Branch(fAODEvent->GetList());
599 TRef junk = (TObject*)fTreeE->BranchRef();
604 //______________________________________________________________________________
605 Bool_t AliAODExtension::TerminateIO()