1 /**************************************************************************
2 * Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 //-------------------------------------------------------------------------
19 // Event handler for AOD input
20 // Author: Andreas Morsch, CERN
21 //-------------------------------------------------------------------------
30 #include "AliAODInputHandler.h"
31 #include "AliAODEvent.h"
33 #include "AliMCEvent.h"
34 #include "AliAODpidUtil.h"
36 ClassImp(AliAODInputHandler)
38 static Option_t *gAODDataType = "AOD";
40 //______________________________________________________________________________
41 AliAODInputHandler::AliAODInputHandler() :
42 AliInputEventHandler(),
49 fMergeEMCALClusters(kTRUE),
50 fMergePHOSClusters(kTRUE),
51 fMergeEMCALCells(kTRUE),
52 fMergePHOSCells(kTRUE),
53 fMergeEMCALTrigger(kTRUE),
54 fMergePHOSTrigger(kTRUE),
55 fMergeHMPIDrings(kTRUE),
56 fFriendsConnected(kFALSE),
62 // Default constructor
63 fHistStatistics[0] = fHistStatistics[1] = NULL;
66 //______________________________________________________________________________
67 AliAODInputHandler::AliAODInputHandler(const char* name, const char* title):
68 AliInputEventHandler(name, title),
70 fMCEvent(new AliMCEvent()),
71 fFriends(new TList()),
75 fMergeEMCALClusters(kTRUE),
76 fMergePHOSClusters(kTRUE),
77 fMergeEMCALCells(kTRUE),
78 fMergePHOSCells(kTRUE),
79 fMergeEMCALTrigger(kTRUE),
80 fMergePHOSTrigger(kTRUE),
81 fMergeHMPIDrings(kTRUE),
82 fFriendsConnected(kFALSE),
89 fHistStatistics[0] = fHistStatistics[1] = NULL;
92 //______________________________________________________________________________
93 AliAODInputHandler::~AliAODInputHandler()
96 if (fFriends) fFriends->Delete();
98 delete fHistStatistics[0];
99 delete fHistStatistics[1];
103 //______________________________________________________________________________
104 Bool_t AliAODInputHandler::Init(TTree* tree, Option_t* opt)
106 // Initialisation necessary for each new tree
108 if (!fTree) return kFALSE;
115 // Get pointer to AOD event
116 if (!fEvent) fEvent = new AliAODEvent();
118 fEvent->ReadFromTree(fTree);
120 if (fMixingHandler) fMixingHandler->Init(tree, opt);
125 //______________________________________________________________________________
126 Bool_t AliAODInputHandler::BeginEvent(Long64_t entry)
129 static Int_t prevRunNumber = -1;
130 if (prevRunNumber != fEvent->GetRunNumber() && NeedField()) {
131 fEvent->InitMagneticField();
132 prevRunNumber = fEvent->GetRunNumber();
134 TClonesArray* mcParticles = (TClonesArray*) (fEvent->FindListObject("mcparticles"));
136 if (!fMCEvent) fMCEvent = new AliMCEvent();
137 fMCEvent->SetParticleArray(mcParticles);
139 // When merging, get current event number from GetReadEntry(),
140 // entry gives the events in the current file
141 if (fTreeToMerge) fTreeToMerge->GetEntry(GetReadEntry() + fMergeOffset);
144 fIsSelectedResult = fEventCuts->GetSelectionMask(fEvent);
146 fIsSelectedResult = fEvent->GetHeader()->GetOfflineTrigger();
148 if (fMixingHandler) fMixingHandler->BeginEvent(entry);
150 // set transient pointer to event inside tracks
151 fEvent->ConnectTracks();
156 //______________________________________________________________________________
157 Bool_t AliAODInputHandler::Notify(const char* path)
159 // Notifaction of directory change
160 if (fMixingHandler) fMixingHandler->Notify(path);
161 if (!fFriendsConnected) {
163 fEvent->ReadFromTree(fTree, "reconnect");
165 fFriendsConnected = kFALSE;
166 fUserInfo=fTree->GetTree()->GetUserInfo();
168 TTree *ttree = fTree->GetTree();
169 if (!ttree) ttree = fTree;
170 TString statFname(ttree->GetCurrentFile()->GetName());
171 AliInfo(Form("Moving to file %s", statFname.Data()));
172 Int_t indarchive = statFname.Index("#");
174 statFname = gSystem->DirName(statFname);
177 statFname.Remove(indarchive+1);
179 statFname += "EventStat_temp.root";
181 if (IsCheckStatistics()) statFile = TFile::Open(statFname, "READ");
183 TList *list = (TList*)statFile->Get("cstatsout");
185 AliVCuts *physSel = (AliVCuts*)list->At(0);
187 TH2F *hAll = dynamic_cast<TH2F*>(physSel->GetStatistics("ALL"));
188 TH2F *hBin0 = dynamic_cast<TH2F*>(physSel->GetStatistics("BIN0"));
189 if (fHistStatistics[0] && hAll) {
192 fHistStatistics[0]->Merge(&tmplist);
195 if (fHistStatistics[1] && hBin0) fHistStatistics[1]->Merge(&tmplist);
198 fHistStatistics[0] = static_cast<TH2F*>(hAll->Clone());
199 fHistStatistics[1] = static_cast<TH2F*>(hBin0->Clone());
200 fHistStatistics[0]->SetDirectory(0);
201 fHistStatistics[1]->SetDirectory(0);
212 //______________________________________________________________________________
213 Bool_t AliAODInputHandler::FinishEvent()
216 if (fMixingHandler) fMixingHandler->FinishEvent();
217 if (fEvent) fEvent->Reset();
221 //______________________________________________________________________________
222 void AliAODInputHandler::AddFriend(char* filename)
225 TNamed* obj = new TNamed(filename, filename);
226 if (!fFriends) fFriends = new TList();
230 //______________________________________________________________________________
231 Option_t *AliAODInputHandler::GetDataType() const
233 // Returns handled data type.
237 //______________________________________________________________________________
238 TObject *AliAODInputHandler::GetStatistics(Option_t *option) const
240 // Get the statistics histogram(s) from the physics selection object. This
241 // should be called during FinishTaskOutput(). Option can be empty (default
242 // statistics histogram) or BIN0.
245 if (opt=="BIN0") return fHistStatistics[1];
246 return fHistStatistics[0];
249 void AliAODInputHandler::ConnectFriends()
251 // Connect the friend trees
252 if (!fFriends) return;
254 TIter next(fFriends);
256 TString aodTreeFName,aodFriendTreeFName;
257 TTree *ttree = fTree->GetTree();
258 if (!ttree) ttree = fTree;
259 if(!ttree->GetCurrentFile()){
260 AliWarning("Couldn't get current AOD file, not connecting friends");
263 aodTreeFName = ttree->GetCurrentFile()->GetName();
265 while((obj = (TNamed*)next())) {
266 aodFriendTreeFName = aodTreeFName;
267 if (strlen(GetInputFileName())) aodFriendTreeFName.ReplaceAll(GetInputFileName(),obj->GetName());
268 aodFriendTreeFName.ReplaceAll("AliAOD.root",obj->GetName());
269 aodFriendTreeFName.ReplaceAll("AliAODs.root",obj->GetName());
270 ttree->AddFriend("aodTree", aodFriendTreeFName.Data());
273 // Friends have to be merged
274 TNamed* filename = (TNamed*) (fFriends->At(0));
275 fFileToMerge = TFile::Open(filename->GetName());
277 fFileToMerge->GetObject("aodTree", fTreeToMerge);
278 if (!fAODEventToMerge) fAODEventToMerge = new AliAODEvent();
279 fAODEventToMerge->ReadFromTree(fTreeToMerge);
282 fFriendsConnected = kTRUE;
285 //______________________________________________________________________________
286 void AliAODInputHandler::CreatePIDResponse(Bool_t isMC/*=kFALSE*/)
289 // create the pid response object if it does not exist yet
291 if (fAODpidUtil) return;
292 fAODpidUtil=new AliAODpidUtil(isMC);