#include "AliBackgroundSelection.h"
#include "TH2F.h"
#include "TList.h"
#include "TString.h"
#include "AliESDInputHandlerRP.h"
#include "AliAnalysisManager.h"
#include "TTree.h"
#include "AliMultiplicity.h"
#ifdef PASS1RECO
#include "AliITSRecPoint.h"
#endif
ClassImp(AliBackgroundSelection)
AliBackgroundSelection::AliBackgroundSelection():
AliAnalysisCuts(), fOutputHist(0), fACut(0), fBCut(0), fDeltaPhiCut(10)
{
fOutputHist = new TList();
fOutputHist->SetOwner();
fACut = 65;
fBCut = 4;
fDeltaPhiCut = 10;
}
AliBackgroundSelection::AliBackgroundSelection(const char* name, const char* title):
AliAnalysisCuts(name,title), fOutputHist(0), fACut(0), fBCut(0), fDeltaPhiCut(10)
{
fOutputHist = new TList();
fOutputHist->SetOwner();
fACut = 65;
fBCut = 4;
fDeltaPhiCut = 10;
}
AliBackgroundSelection::AliBackgroundSelection(const AliBackgroundSelection& obj) : AliAnalysisCuts(obj),
fOutputHist(0), fACut(0), fBCut(0), fDeltaPhiCut(0)
{
fOutputHist = obj.fOutputHist;
fACut = obj.fACut;
fBCut = obj.fBCut;
fDeltaPhiCut = obj.fDeltaPhiCut;
}
AliBackgroundSelection::~AliBackgroundSelection() {
if(fOutputHist) {
delete fOutputHist;
fOutputHist = 0;
}
}
Bool_t AliBackgroundSelection::IsSelected(TObject* const obj)
{
SetSelected(kFALSE);
#ifdef PASS1RECO
AliESDInputHandlerRP* handlerRP = dynamic_cast<AliESDInputHandlerRP*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
if (!handlerRP)
AliFatal("Cannot get the AliESDInputHandlerRP");
TTree* itsClusterTree = handlerRP->GetTreeR("ITS");
if (!itsClusterTree){
AliError("Cannot get the ITS Cluster tree");
return kFALSE;
}
TClonesArray* itsClusters = new TClonesArray("AliITSRecPoint");
TBranch* itsClusterBranch=itsClusterTree->GetBranch("ITSRecPoints");
itsClusterBranch->SetAddress(&itsClusters);
Int_t nItsSubs = (Int_t)itsClusterTree->GetEntries();
#endif
AliESDEvent * esdEv = (AliESDEvent*) obj;
#ifdef PASS1RECO
Float_t deltaPhi = 0.0;
Int_t spdClusters=0;
for (Int_t iIts=0; iIts < nItsSubs; iIts++) {
if (!itsClusterTree->GetEvent(iIts))
continue;
Int_t nClusters = itsClusters->GetEntriesFast();
while (nClusters--) {
AliITSRecPoint* cluster = (AliITSRecPoint*) itsClusters->UncheckedAt(nClusters);
Int_t layer = cluster->GetLayer();
if (layer < 3) {
spdClusters++;
}
}
}
#endif
const AliMultiplicity* mult = esdEv->GetMultiplicity();
if (!mult){
AliFatal("No multiplicity object");
}
Int_t ntracklet = mult->GetNumberOfTracklets();
#ifndef PASS1RECO
Float_t deltaPhi = 0.0;
const AliESDVertex * vtxESD = esdEv->GetPrimaryVertexSPD();
if(vtxESD) {
if (vtxESD->IsFromVertexerZ()) deltaPhi = vtxESD->GetDispersion();
}
else {
AliWarning("No Vertex");
}
Float_t spdClusters = 0;
for(Int_t ilayer = 0; ilayer < 2; ilayer++){
spdClusters += mult->GetNumberOfITSClusters(ilayer);
}
#endif
Bool_t isCvsTOk = kFALSE;
Bool_t isDeltaPhiOk = kFALSE;
Float_t limit = fACut + ntracklet * fBCut;
if (spdClusters > limit) isCvsTOk = kFALSE;
else isCvsTOk = kTRUE ;
if(deltaPhi > fDeltaPhiCut) isDeltaPhiOk = kFALSE;
else isDeltaPhiOk = kTRUE ;
if (!isCvsTOk || !isDeltaPhiOk) SetSelected(kFALSE);
else SetSelected(kTRUE );
TString trgClasses = esdEv->GetFiredTriggerClasses();
TObjArray * tokens = trgClasses.Tokenize(" ");
TIter iter(tokens);
while(TObjString * tok = (TObjString*) iter.Next()){
TString trg = tok->GetString();
trg.Strip(TString::kTrailing, ' ');
trg.Strip(TString::kLeading, ' ');
TH2F * hCvsT = GetClusterVsTrackletsHisto(trg.Data());
TH2F * hCvsTa = GetClusterVsTrackletsHistoAccepted(trg.Data());
hCvsT->Fill(ntracklet,spdClusters);
if(isCvsTOk) hCvsTa->Fill(ntracklet,spdClusters);
TH1F * hDeltaPhi = GetDeltaPhiHisto(trg.Data());
TH1F * hDeltaPhia = GetDeltaPhiHistoAccepted(trg.Data());
hDeltaPhi->Fill(deltaPhi);
if(isDeltaPhiOk) hDeltaPhia->Fill(deltaPhi);
}
if(tokens) delete tokens;
#ifdef PASS1RECO
if(itsClusters) {
itsClusters->Delete();
delete itsClusters;
}
#endif
return Selected();
}
void AliBackgroundSelection::Init(){
fACut = 65;
fBCut = 4;
}
void AliBackgroundSelection::BookClusterVsTrackletsHisto(const char * trigger_name){
Bool_t oldStatus = TH1::AddDirectoryStatus();
TH1::AddDirectory(kFALSE);
TH2F * h1 = new TH2F(GetClusterVsTrackletsHistoName(trigger_name),trigger_name, 300, -0.5, 2999.5, 1000, -0.5, 9999.5);
h1->SetXTitle("Tracklets");
h1->SetYTitle("SPD Clusters");
TH2F * h2 = new TH2F(GetClusterVsTrackletsHistoNameAccepted(trigger_name),TString(trigger_name)+ "(accepted)",
300, -0.5, 2999.5, 1000, -0.5, 9999.5);
h2->SetXTitle("Tracklets");
h2->SetYTitle("SPD Clusters");
fOutputHist->Add(h1);
fOutputHist->Add(h2);
TH1::AddDirectory(oldStatus);
}
void AliBackgroundSelection::BookDeltaPhiHisto(const char * trigger_name){
Bool_t oldStatus = TH1::AddDirectoryStatus();
TH1::AddDirectory(kFALSE);
TH1F * h1 = new TH1F(GetDeltaPhiHistoName(trigger_name),trigger_name, 100,0,0.5);
h1->SetXTitle("#Delta #phi");
TH1F * h2 = new TH1F(GetDeltaPhiHistoNameAccepted(trigger_name),TString(trigger_name)+ "(accepted)", 100,0,0.5);
h2->SetXTitle("#Delta #phi");
fOutputHist->Add(h1);
fOutputHist->Add(h2);
TH1::AddDirectory(oldStatus);
}
TH2F * AliBackgroundSelection::GetClusterVsTrackletsHisto(const char * trigger_name){
if(!fOutputHist) {AliError("List of histos not initialized");return 0;}
TH2F * h = (TH2F*) fOutputHist->FindObject(GetClusterVsTrackletsHistoName(trigger_name));
if(!h) {
BookClusterVsTrackletsHisto(trigger_name);
h = (TH2F*) fOutputHist->FindObject(GetClusterVsTrackletsHistoName(trigger_name));
}
return h;
}
TH1F * AliBackgroundSelection::GetDeltaPhiHisto(const char * trigger_name){
if(!fOutputHist) {AliError("List of histos not initialized");return 0;}
TH1F * h = (TH1F*) fOutputHist->FindObject(GetDeltaPhiHistoName(trigger_name));
if(!h) {
BookDeltaPhiHisto(trigger_name);
h = (TH1F*) fOutputHist->FindObject(GetDeltaPhiHistoName(trigger_name));
}
return h;
}
TH2F * AliBackgroundSelection::GetClusterVsTrackletsHistoAccepted(const char * trigger_name){
if(!fOutputHist) {AliError("List of histos not initialized");return 0;}
TH2F * h = (TH2F*) fOutputHist->FindObject(GetClusterVsTrackletsHistoNameAccepted(trigger_name));
if(!h) {
BookClusterVsTrackletsHisto(trigger_name);
h = (TH2F*) fOutputHist->FindObject(GetClusterVsTrackletsHistoNameAccepted(trigger_name));
}
return h;
}
TH1F * AliBackgroundSelection::GetDeltaPhiHistoAccepted(const char * trigger_name){
if(!fOutputHist) {AliError("List of histos not initialized");return 0;}
TH1F * h = (TH1F*) fOutputHist->FindObject(GetDeltaPhiHistoNameAccepted(trigger_name));
if(!h) {
BookDeltaPhiHisto(trigger_name);
h = (TH1F*) fOutputHist->FindObject(GetDeltaPhiHistoNameAccepted(trigger_name));
}
return h;
}
const char * AliBackgroundSelection::GetClusterVsTrackletsHistoName(const char * trigger_name){
static TString str;
str = ("hCvsT");
str = str+GetName()+"_"+trigger_name;
return str.Data();
}
const char * AliBackgroundSelection::GetClusterVsTrackletsHistoNameAccepted(const char * trigger_name){
static TString str;
str = ("hCvsT");
str = str+GetName()+"_"+trigger_name + "_accepted";
return str.Data();
}
const char * AliBackgroundSelection::GetDeltaPhiHistoName(const char * trigger_name){
static TString str;
str = ("hDeltaPhi");
str = str+GetName()+"_"+trigger_name;
return str.Data();
}
const char * AliBackgroundSelection::GetDeltaPhiHistoNameAccepted(const char * trigger_name){
static TString str;
str = ("hDeltaPhi");
str = str+GetName()+"_"+trigger_name + "_accepted";
return str.Data();
}
Long64_t AliBackgroundSelection::Merge(TCollection* const list)
{
if (!list)
return 0;
if (list->IsEmpty())
return 1;
TIterator* iter = list->MakeIterator();
TObject* obj;
const Int_t nHists = 1;
TList collections[nHists];
Int_t count = 0;
fOutputHist->Sort();
while ((obj = iter->Next())) {
Bool_t foundDiffinThisIterStep = kFALSE;
AliBackgroundSelection* entry = dynamic_cast<AliBackgroundSelection*> (obj);
if (entry == 0)
continue;
TList * hlist = entry->fOutputHist;
Bool_t areListsDifferent=kTRUE;
Int_t iloop = 0;
Int_t maxLoops = hlist->GetSize() + fOutputHist->GetSize();
while(areListsDifferent) {
if(iloop>maxLoops) AliFatal("Infinite Loop?");
iloop++;
hlist->Sort();
fOutputHist->Sort();
TObject * hist =0;
TIterator * iterlist = 0;
TList * thislist = 0;
TList * otherlist = 0;
if (hlist->GetSize() >= fOutputHist->GetSize()) {
thislist = hlist;
otherlist = fOutputHist;
}
else{
thislist = fOutputHist;
otherlist = hlist;
}
iterlist = thislist->MakeIterator();
while ((hist= iterlist->Next())){
if(!otherlist->FindObject(hist->GetName())){
foundDiffinThisIterStep = kTRUE;
TH1 * hclone = (TH1*) hist->Clone();
hclone->Reset();
otherlist->Add(hclone);
}
}
delete iterlist;
hlist->Sort();
fOutputHist->Sort();
areListsDifferent=kFALSE;
if (hlist->GetSize() == fOutputHist->GetSize()) {
Int_t nhist = fOutputHist->GetSize();
for(Int_t ihist = 0; ihist < nhist; ihist++){
if(strcmp(fOutputHist->At(ihist)->GetName(),hlist->At(ihist)->GetName())) areListsDifferent = kTRUE;
}
} else {
areListsDifferent=kTRUE;
}
}
if (hlist->GetSize() != fOutputHist->GetSize()) {
AliFatal("Mismatching size!");
}
Int_t nhist = fOutputHist->GetSize();
for(Int_t ihist = 0; ihist < nhist; ihist++){
if(strcmp(fOutputHist->At(ihist)->GetName(),hlist->At(ihist)->GetName())){
AliFatal(Form("Mismatching histos: %s -> %s", fOutputHist->At(ihist)->GetName(),hlist->At(ihist)->GetName()));
}
}
if (foundDiffinThisIterStep){
iter->Reset();
Int_t n = 0;
collections[n++].Clear();
count = 0;
}
else {
Int_t n = 0;
collections[n++].Add(hlist);
count++;
}
}
Int_t n = 0;
fOutputHist->Merge(&collections[n++]);
delete iter;
return count+1;
}
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