1 AliCentralitySelectionTask *AddTaskCentrality()
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 (inputDataType != "ESD") {
17 ::Error("AddTaskCentrality", "This task works only on ESD analysis");
20 AliCentralitySelectionTask *centralityTask = new AliCentralitySelectionTask("CentralitySelection");
21 centralityTask->SetPass(2);
22 centralityTask->SelectCollisionCandidates(AliVEvent::kMB);
23 mgr->AddTask(centralityTask);
25 AliAnalysisDataContainer *cinput0 = mgr->GetCommonInputContainer();
26 AliAnalysisDataContainer *coutput1 = mgr->CreateContainer("CentralityStat",
27 TList::Class(), AliAnalysisManager::kOutputContainer,
28 "EventStat_temp.root");
30 mgr->ConnectInput(centralityTask, 0, mgr->GetCommonInputContainer());
31 mgr->ConnectOutput(centralityTask,1,coutput1);
33 return centralityTask;