1 AliCentralitySelectionTask *AddTaskCentrality(Bool_t fillHistos=kTRUE, Bool_t aod=kFALSE)
3 // Macro to connect a centrality selection task to an existing analysis manager.
4 AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
6 ::Error("AddTaskCentrality", "No analysis manager to connect to.");
9 // Check the analysis type using the event handlers connected to the analysis manager.
10 //==============================================================================
11 if (!mgr->GetInputEventHandler()) {
12 ::Error("AddTaskCentrality", "This task requires an input event handler");
15 TString inputDataType = mgr->GetInputEventHandler()->GetDataType(); // can be "ESD" or "AOD"
16 if (!aod && (inputDataType != "ESD")) {
17 ::Error("AddTaskCentrality", "This task works only on ESD analysis");
21 AliInputEventHandler* hdl = (AliInputEventHandler*)mgr->GetInputEventHandler();
22 if (hdl) hdl->SetNeedField();
24 AliCentralitySelectionTask *centralityTask = new AliCentralitySelectionTask("CentralitySelection");
25 centralityTask->SetInput(inputDataType);
26 centralityTask->SelectCollisionCandidates(AliVEvent::kAny);
27 mgr->AddTask(centralityTask);
29 mgr->ConnectInput(centralityTask, 0, mgr->GetCommonInputContainer());
31 centralityTask->SetFillHistos();
32 AliAnalysisDataContainer *coutput1 = mgr->CreateContainer("CentralityStat",
34 AliAnalysisManager::kOutputContainer,
35 "EventStat_temp.root");
36 mgr->ConnectOutput(centralityTask,1,coutput1);
39 return centralityTask;