AliAnalysisTaskEmcalTriggerCorrelation.cxx

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#include <iostream>
#include <TList.h>
#include "AliAnalysisManager.h"
#include "AliAnalysisTaskEmcalTriggerCorrelation.h"
#include "AliMultSelection.h"

ClassImp(EMCalTriggerPtAnalysis::AliAnalysisTaskEmcalTriggerCorrelation)

using namespace EMCalTriggerPtAnalysis;

AliAnalysisTaskEmcalTriggerCorrelation::AliAnalysisTaskEmcalTriggerCorrelation():
  AliAnalysisTaskEmcalTriggerBase(),
  fRequestCentrality(false),
  fEventCentrality(99.),
  fCentralityRange(0.,100.),
  fCentralityEstimator("V0M")
{
  SetRequireAnalysisUtils(true);
}

AliAnalysisTaskEmcalTriggerCorrelation::AliAnalysisTaskEmcalTriggerCorrelation(const char *name):
  AliAnalysisTaskEmcalTriggerBase(name),
  fRequestCentrality(false),
  fEventCentrality(99.),
  fCentralityRange(0.,100.),
  fCentralityEstimator("V0M")
{
  SetRequireAnalysisUtils(true);
}

AliAnalysisTaskEmcalTriggerCorrelation::~AliAnalysisTaskEmcalTriggerCorrelation(){

}

bool AliAnalysisTaskEmcalTriggerCorrelation::IsUserEventSelected(){
  fEventCentrality = 99;   // without centrality put everything in the peripheral bin
  if(fRequestCentrality){
    AliMultSelection *mult = dynamic_cast<AliMultSelection *>(InputEvent()->FindListObject("MultSelection"));
    if(!mult){
      AliErrorStream() << GetName() << ": Centrality selection enabled but no centrality estimator found" << std::endl;
      return false;
    }
    if(mult->IsEventSelected()) return false;
    fEventCentrality = mult->GetEstimator(fCentralityEstimator)->GetPercentile();
    AliDebugStream(1) << GetName() << ": Centrality " <<  fEventCentrality << std::endl;
    if(!fCentralityRange.IsInRange(fEventCentrality)){
      AliDebugStream(1) << GetName() << ": reject centrality: " << fEventCentrality << std::endl;
      return false;
    } else {
      AliDebugStream(1) << GetName() << ": select centrality " << fEventCentrality << std::endl;
    }
  } else {
    AliDebugStream(1) << GetName() << ": No centrality selection applied" << std::endl;
  }

  return true;
}

AliAnalysisTaskEmcalTriggerCorrelation *AliAnalysisTaskEmcalTriggerCorrelation::AddTaskTriggerCorrelation(const char *name){
  auto mgr = AliAnalysisManager::GetAnalysisManager();
  if(!mgr){
    std::cerr << "No analysis manager available. Exiting ..." << std::endl;
    return nullptr;
  }

  auto task = new AliAnalysisTaskEmcalTriggerCorrelation(name);
  mgr->AddTask(task);

  mgr->ConnectInput(task, 0, mgr->GetCommonInputContainer());
  mgr->ConnectOutput(task, 1, mgr->CreateContainer(Form("histosTriggerCorrelation_%s", name), TList::Class(), AliAnalysisManager::kOutputContainer, Form("%s:TriggerCorrelationQA_%s", mgr->GetCommonFileName(), name)));
  return task;
}