]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - STEER/AliAODHandler.cxx
Adding AODMCHeader, new class and in the Filter and Handler
[u/mrichter/AliRoot.git] / STEER / AliAODHandler.cxx
index f7cefc2c570b641a150ebaa493e2d97a1967f1de..45bf43b2c50db58f1212916f82e71c3b4b5f96e2 100644 (file)
 
 #include <TTree.h>
 #include <TFile.h>
+#include <TString.h>
+#include <TList.h>
 
+#include "AliLog.h"
 #include "AliAODHandler.h"
 #include "AliAODEvent.h"
+#include "AliAODTracklets.h"
+#include "AliStack.h"
+#include "AliAODMCParticle.h"
+#include "AliAODMCHeader.h"
+#include "AliMCEventHandler.h"
+#include "AliMCEvent.h"
+#include "AliGenEventHeader.h"
+#include "AliGenHijingEventHeader.h"
+#include "AliGenDPMjetEventHeader.h"
+#include "AliGenPythiaEventHeader.h"
+#include "AliGenCocktailEventHeader.h"
+
+
 
 ClassImp(AliAODHandler)
 
 //______________________________________________________________________________
 AliAODHandler::AliAODHandler() :
     AliVEventHandler(),
+    fIsStandard(kTRUE),
+    fFillAOD(kTRUE),
+    fNeedsHeaderReplication(kFALSE),
+    fNeedsTracksBranchReplication(kFALSE),
+    fNeedsVerticesBranchReplication(kFALSE),
+    fNeedsV0sBranchReplication(kFALSE),
+    fNeedsTrackletsBranchReplication(kFALSE),
+    fNeedsPMDClustersBranchReplication(kFALSE),
+    fNeedsJetsBranchReplication(kFALSE),
+    fNeedsFMDClustersBranchReplication(kFALSE),
+    fNeedsCaloClustersBranchReplication(kFALSE),
+    fAODIsReplicated(kFALSE),
     fAODEvent(NULL),
+    fMCEventH(NULL),
     fTreeA(NULL),
     fFileA(NULL),
-    fName("")
+    fFileName("")
 {
   // default constructor
 }
@@ -43,10 +72,23 @@ AliAODHandler::AliAODHandler() :
 //______________________________________________________________________________
 AliAODHandler::AliAODHandler(const char* name, const char* title):
     AliVEventHandler(name, title),
+    fIsStandard(kTRUE),
+    fFillAOD(kTRUE),
+    fNeedsHeaderReplication(kFALSE),
+    fNeedsTracksBranchReplication(kFALSE),
+    fNeedsVerticesBranchReplication(kFALSE),
+    fNeedsV0sBranchReplication(kFALSE),
+    fNeedsTrackletsBranchReplication(kFALSE),
+    fNeedsPMDClustersBranchReplication(kFALSE),
+    fNeedsJetsBranchReplication(kFALSE),
+    fNeedsFMDClustersBranchReplication(kFALSE),
+    fNeedsCaloClustersBranchReplication(kFALSE),
+    fAODIsReplicated(kFALSE),
     fAODEvent(NULL),
+    fMCEventH(NULL),
     fTreeA(NULL),
     fFileA(NULL),
-    fName("")
+    fFileName("")
 {
 }
 
@@ -60,11 +102,10 @@ AliAODHandler::~AliAODHandler()
     delete fFileA;
   }
   delete fTreeA;
-  delete fName;
  // destructor
 }
 
-
+//______________________________________________________________________________
 Bool_t AliAODHandler::Init(Option_t* opt)
 {
   // Initialize IO
@@ -72,32 +113,259 @@ Bool_t AliAODHandler::Init(Option_t* opt)
   // Create the AODevent object
   if(!fAODEvent){
     fAODEvent = new AliAODEvent();
-    fAODEvent->CreateStdContent();
+    if (fIsStandard) fAODEvent->CreateStdContent();
   }
   //
   // File opening according to execution mode
-  
-  if (!(strcmp(opt, "proof"))) {
+  TString option(opt);
+  option.ToLower();
+  if (option.Contains("proof")) {
     // proof
-    CreateTree(0);
+    if (option.Contains("special")) {
+       // File for tree already opened on slave -> merging via files
+       fFileA = gFile;
+       CreateTree(1);
+    } else {   
+       // Merging in memory
+       CreateTree(0);
+    }   
   } else {
     // local and grid
     TDirectory *owd = gDirectory;
-    fFileA = new TFile(fName, "RECREATE");
+    fFileA = new TFile(fFileName.Data(), "RECREATE");
     CreateTree(1);
     owd->cd();
   }
   return kTRUE;
 }
 
+
+void AliAODHandler::StoreMCParticles(){
+
+  // 
+  // Remap the labels from ESD stack and store
+  // the AODMCParticles, makes only sense if we have
+  // the mcparticles branch
+  // has to be done here since we cannot know in advance 
+  // which particles are needed (e.g. by the tracks etc.)
+  //
+  // Particles have been selected by AliMCEventhanlder->SelectParticle()
+  // To use the MCEventhandler here we need to set it from the outside
+  // can vanish when Handler go to the ANALYSISalice library
+  //
+  // The Branch booking for mcParticles and mcHeader has to happen 
+  // in an external task for now since the AODHandler does not have access
+  // the AnalysisManager. For the same reason the pointer t o the MCEventH
+  // has to passed to the AOD Handler by this task 
+  // (doing this in the steering macro would not work on PROOF)
+
+  TClonesArray *mcarray = (TClonesArray*)fAODEvent->FindListObject(AliAODMCParticle::StdBranchName()); 
+  if(!mcarray)return;
+  mcarray->Delete();
+
+  AliAODMCHeader *mcHeader = (AliAODMCHeader*)fAODEvent->FindListObject(AliAODMCHeader::StdBranchName()); 
+  if(!mcHeader)return;
+
+  mcHeader->Reset();
+
+  // Get the MC Infos.. Handler needs to be set before 
+  // while adding the branch
+  // This needs to be done, not to depend on the AnalysisManager
+
+  if(!fMCEventH)return;
+  if(!fMCEventH->MCEvent())return;
+  AliStack *pStack = fMCEventH->MCEvent()->Stack();
+  if(!pStack)return;
+
+  fMCEventH->CreateLabelMap();
+
+  //
+  // Get the Event Header 
+  // 
+
+  AliHeader* header = fMCEventH->MCEvent()->Header();
+  if (!header)return;
+
+  // get the MC vertex
+  AliGenEventHeader* genHeader = header->GenEventHeader();
+  TArrayF vtxMC(3);
+  genHeader->PrimaryVertex(vtxMC);
+  mcHeader->SetVertex(vtxMC[0],vtxMC[1],vtxMC[2]);
+
+  // we search the MCEventHeaders first 
+  // Two cases, cocktail or not...
+  AliGenCocktailEventHeader* genCocktailHeader = dynamic_cast<AliGenCocktailEventHeader*>(genHeader);
+  if(genCocktailHeader){
+    // we have a coktail header
+    mcHeader->AddGeneratorName(genHeader->GetName());
+    // Loop from the back so that the first one sets the process type
+    TList* headerList = genCocktailHeader->GetHeaders();
+    for(int i = headerList->GetEntries()-1;i>=0;--i){
+      AliGenEventHeader *headerEntry = dynamic_cast<AliGenEventHeader*>(headerList->At(i));
+      SetMCHeaderInfo(mcHeader,headerEntry);
+    }
+  }
+  else{
+    // No Cocktail just take the first one
+    SetMCHeaderInfo(mcHeader,genHeader);
+  }
+
+
+
+
+  // Store the AliAODParticlesMC
+
+  Int_t np    = pStack->GetNtrack();
+  Int_t nprim = pStack->GetNprimary();
+
+
+  Int_t j = 0;
+  TClonesArray& l = *mcarray;
+
+  for(int i = 0;i < np;++i){
+    if(fMCEventH->IsParticleSelected(i)){
+
+      Int_t flag = 0;
+      TParticle *part = pStack->Particle(i);
+      if(i<nprim)flag |= AliAODMCParticle::kPrimary;
+      if(pStack->IsPhysicalPrimary(i))flag |= AliAODMCParticle::kPhysicalPrim;
+
+      if(fMCEventH->GetNewLabel(i)!=j){
+       AliError(Form("MISMATCH New label %d j: %d",fMCEventH->GetNewLabel(i),j));
+      }
+      AliAODMCParticle mcpart_tmp(part,i,flag);
+
+      // 
+      Int_t d0 =  mcpart_tmp.GetDaughter(0);
+      Int_t d1 =  mcpart_tmp.GetDaughter(1);
+      Int_t m =  mcpart_tmp.GetMother();
+
+      // other than for the track labels, negative values mean
+      // no daughter/mother so preserve it
+      if(d0<0 && d1<0){
+       // no first daughter -> no second daughter
+       // nothing to be done
+       // second condition not needed just for sanity check at the end
+       mcpart_tmp.SetDaughter(0,d0);
+       mcpart_tmp.SetDaughter(1,d1);
+      }
+      else if(d1 < 0 && d0 >= 0){
+       // Only one daughter
+       // second condition not needed just for sanity check at the end
+       if(fMCEventH->IsParticleSelected(d0)){
+         mcpart_tmp.SetDaughter(0,fMCEventH->GetNewLabel(d0));
+       }
+       else{
+         mcpart_tmp.SetDaughter(0,-1);
+       }
+       mcpart_tmp.SetDaughter(1,d1);
+      }
+      else if (d0 > 0 && d1 > 0 ){
+       // we have two or more daughters loop on the stack to see if they are
+       // selected
+       Int_t d0_tmp = -1;
+       Int_t d1_tmp = -1;
+       for(int id = d0; id<=d1;++id){
+         if(fMCEventH->IsParticleSelected(id)){
+           if(d0_tmp==-1){
+             // first time
+             d0_tmp = fMCEventH->GetNewLabel(id);
+             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 
+           }
+           else d1_tmp = fMCEventH->GetNewLabel(id);
+         }
+       }
+       mcpart_tmp.SetDaughter(0,d0_tmp);
+       mcpart_tmp.SetDaughter(1,d1_tmp);
+      }
+      else{
+       AliError(Form("Unxpected indices %d %d",d0,d1));
+      }
+
+      if(m<0){
+       mcpart_tmp.SetMother(m);
+      }
+      else{
+       if(fMCEventH->IsParticleSelected(m))mcpart_tmp.SetMother(fMCEventH->GetNewLabel(m));
+       else AliError("PROBLEM Mother not selected");
+      }
+
+      new (l[j++]) AliAODMCParticle(mcpart_tmp);
+      
+    }
+  }
+  AliInfo(Form("AliAODHandler::StoreMCParticles: Selected %d (Primaries %d / total %d) after validation",
+              j,nprim,np));
+  
+  // Set the labels in the AOD output...
+  // Remapping
+
+  // AODTracks
+  TClonesArray* tracks = fAODEvent->GetTracks();
+  if(tracks){
+    for(int it = 0; it < fAODEvent->GetNTracks();++it){
+      AliAODTrack *track = fAODEvent->GetTrack(it);
+      
+      if(TMath::Abs(track->GetLabel())>np||track->GetLabel()==0){
+       AliWarning(Form("Wrong ESD track label %d",track->GetLabel()));
+      }
+      if(fMCEventH->GetNewLabel(track->GetLabel())==0){
+       AliWarning(Form("New label not found for %d",track->GetLabel()));
+      }
+      track->SetLabel(fMCEventH->GetNewLabel(track->GetLabel()));
+    }
+  }
+  
+  // AOD calo cluster
+  TClonesArray *clusters = fAODEvent->GetCaloClusters();
+  if(clusters){
+    for (Int_t iClust = 0;iClust < fAODEvent->GetNCaloClusters(); ++iClust) {
+      AliAODCaloCluster * cluster = fAODEvent->GetCaloCluster(iClust);
+      UInt_t nLabel    = cluster->GetNLabel();
+      // Ugly but do not want to fragment memory by creating 
+      // new Int_t (nLabel)
+      Int_t* labels    = const_cast<Int_t*>(cluster->GetLabels());
+      if (labels){
+       for(UInt_t i = 0;i < nLabel;++i){
+         labels[i] = fMCEventH->GetNewLabel(cluster->GetLabel(i));
+       }
+      }
+      //      cluster->SetLabels(labels,nLabel);
+    }// iClust
+  }// clusters
+
+  // AOD tracklets
+  AliAODTracklets *tracklets = fAODEvent->GetTracklets();
+  if(tracklets){
+    for(int it = 0;it < tracklets->GetNumberOfTracklets();++it){
+      int label0 = tracklets->GetLabel(it,0);
+      int label1 = tracklets->GetLabel(it,1);
+      if(label0>=0)label0 = fMCEventH->GetNewLabel(label0);      
+      if(label1>=0)label1 = fMCEventH->GetNewLabel(label1);
+      tracklets->SetLabel(it,0,label0);
+      tracklets->SetLabel(it,1,label1);
+    }
+  }
+
+}
+
 Bool_t AliAODHandler::FinishEvent()
 {
-    // Fill data structures
+  // Fill data structures
+  if(fFillAOD){
+    fAODEvent->MakeEntriesReferencable();
+    StoreMCParticles();
     FillTree();
-    fAODEvent->ResetStd();
-    return kTRUE;
+  }
+
+  if (fIsStandard) fAODEvent->ResetStd();
+  // Reset AOD replication flag
+  fAODIsReplicated = kFALSE;
+  return kTRUE;
 }
 
+//______________________________________________________________________________
 Bool_t AliAODHandler::Terminate()
 {
     // Terminate 
@@ -105,6 +373,7 @@ Bool_t AliAODHandler::Terminate()
     return kTRUE;
 }
 
+//______________________________________________________________________________
 Bool_t AliAODHandler::TerminateIO()
 {
     // Terminate IO
@@ -115,7 +384,7 @@ Bool_t AliAODHandler::TerminateIO()
     return kTRUE;
 }
 
-
+//______________________________________________________________________________
 void AliAODHandler::CreateTree(Int_t flag)
 {
     // Creates the AOD Tree
@@ -124,15 +393,95 @@ void AliAODHandler::CreateTree(Int_t flag)
     if (flag == 0) fTreeA->SetDirectory(0);
 }
 
+//______________________________________________________________________________
 void AliAODHandler::FillTree()
 {
     // Fill the AOD Tree
-    fTreeA->Fill();
+  fTreeA->Fill();
 }
 
-
+//______________________________________________________________________________
 void AliAODHandler::AddAODtoTreeUserInfo()
 {
-    // Add aod event to tree user info
-    fTreeA->GetUserInfo()->Add(fAODEvent);
+  // Add aod event to tree user info
+  fTreeA->GetUserInfo()->Add(fAODEvent);
+}
+
+//______________________________________________________________________________
+void AliAODHandler::AddBranch(const char* cname, void* addobj)
+{
+    // Add a new branch to the aod 
+    TDirectory *owd = gDirectory;
+    if (fFileA) {
+      fFileA->cd();
+    }
+    char** apointer = (char**) addobj;
+    TObject* obj = (TObject*) *apointer;
+
+    fAODEvent->AddObject(obj);
+    const Int_t kSplitlevel = 99; // default value in TTree::Branch()
+    const Int_t kBufsize = 32000; // default value in TTree::Branch()
+
+    if (!fTreeA->FindBranch(obj->GetName())) {
+      // Do the same as if we book via 
+      // TTree::Branch(TCollection*)
+      
+      fTreeA->Bronch(obj->GetName(), cname, fAODEvent->GetList()->GetObjectRef(obj),
+                    kBufsize, kSplitlevel - 1);
+      //    fTreeA->Branch(obj->GetName(), cname, addobj);
+    }
+    owd->cd();
+}
+
+//______________________________________________________________________________
+void AliAODHandler::SetOutputFileName(const char* fname)
+{
+// Set file name.
+   fFileName = fname;
+}
+
+//______________________________________________________________________________
+const char *AliAODHandler::GetOutputFileName()
+{
+// Get file name.
+   return fFileName.Data();
+}
+
+void  AliAODHandler::SetMCHeaderInfo(AliAODMCHeader *mcHeader,AliGenEventHeader *genHeader){
+
+
+  // Utility function to cover different cases for the AliGenEventHeader
+  // Needed since different ProcessType and ImpactParamter are not 
+  // in the base class...
+  // We don't encode process types for event cocktails yet
+  // coul be done e.g. by adding offsets depnding on the generator
+
+
+  mcHeader->AddGeneratorName(genHeader->GetName());
+
+
+
+  if(!genHeader)return;
+  AliGenPythiaEventHeader *pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(genHeader);
+    if (pythiaGenHeader) {
+      mcHeader->SetEventType(pythiaGenHeader->ProcessType());
+      return;
+    }
+    
+    AliGenDPMjetEventHeader* dpmJetGenHeader = dynamic_cast<AliGenDPMjetEventHeader*>(genHeader);
+
+  if (dpmJetGenHeader){
+    mcHeader->SetEventType(dpmJetGenHeader->ProcessType());
+    return;
+  } 
+
+  AliGenHijingEventHeader* hijingGenHeader = dynamic_cast<AliGenHijingEventHeader*>(genHeader);
+  if(hijingGenHeader){
+    mcHeader->SetImpactParameter(hijingGenHeader->ImpactParameter());
+    return;
+  }
+  
+  AliWarning(Form("MC Eventheader not known: %s",genHeader->GetName()));
+
 }