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(),
44 fMCEvent(new AliMCEvent()),
45 fFriends(new TList()),
49 fMergeEMCALClusters(kTRUE),
50 fMergePHOSClusters(kTRUE),
51 fMergeEMCALCells(kTRUE),
52 fMergePHOSCells(kTRUE),
53 fFriendsConnected(kFALSE),
59 // Default constructor
60 fHistStatistics[0] = fHistStatistics[1] = NULL;
63 //______________________________________________________________________________
64 AliAODInputHandler::AliAODInputHandler(const char* name, const char* title):
65 AliInputEventHandler(name, title),
67 fMCEvent(new AliMCEvent()),
68 fFriends(new TList()),
72 fMergeEMCALClusters(kTRUE),
73 fMergePHOSClusters(kTRUE),
74 fMergeEMCALCells(kTRUE),
75 fMergePHOSCells(kTRUE),
76 fFriendsConnected(kFALSE),
83 fHistStatistics[0] = fHistStatistics[1] = NULL;
86 //______________________________________________________________________________
87 AliAODInputHandler::~AliAODInputHandler()
91 if (fHistStatistics[0]) {
92 delete fHistStatistics[0];
93 fHistStatistics[0] = 0;
95 if (fHistStatistics[1]) {
96 delete fHistStatistics[1];
97 fHistStatistics[1] = 0;
102 //______________________________________________________________________________
103 Bool_t AliAODInputHandler::Init(TTree* tree, Option_t* opt)
105 // Initialisation necessary for each new tree
107 if (!fTree) return kFALSE;
114 // Get pointer to AOD event
115 if (!fEvent) fEvent = new AliAODEvent();
117 fEvent->ReadFromTree(fTree);
119 if (fMixingHandler) fMixingHandler->Init(tree, opt);
124 //______________________________________________________________________________
125 Bool_t AliAODInputHandler::BeginEvent(Long64_t entry)
128 TClonesArray* mcParticles = (TClonesArray*) (fEvent->FindListObject("mcparticles"));
129 if (mcParticles) fMCEvent->SetParticleArray(mcParticles);
130 if (fTreeToMerge) fTreeToMerge->GetEntry(entry + fMergeOffset);
132 fIsSelectedResult = fEvent->GetHeader()->GetOfflineTrigger();
134 if (fMixingHandler) fMixingHandler->BeginEvent(entry);
139 //______________________________________________________________________________
140 Bool_t AliAODInputHandler::Notify(const char* path)
142 // Notifaction of directory change
143 if (fMixingHandler) fMixingHandler->Notify(path);
144 if (!fFriendsConnected) {
146 fEvent->ReadFromTree(fTree, "reconnect");
148 fFriendsConnected = kFALSE;
150 TTree *ttree = fTree->GetTree();
151 if (!ttree) ttree = fTree;
152 TString statFname(ttree->GetCurrentFile()->GetName());
153 Int_t indarchive = statFname.Index("#");
155 statFname = gSystem->DirName(statFname);
158 statFname.Remove(indarchive+1);
160 statFname += "EventStat_temp.root";
162 if (IsCheckStatistics()) statFile = TFile::Open(statFname, "READ");
164 TList *list = (TList*)statFile->Get("cstatsout");
166 AliVCuts *physSel = (AliVCuts*)list->At(0);
168 TH2F *hAll = dynamic_cast<TH2F*>(physSel->GetStatistics("ALL"));
169 TH2F *hBin0 = dynamic_cast<TH2F*>(physSel->GetStatistics("BIN0"));
170 if (fHistStatistics[0] && hAll) {
173 fHistStatistics[0]->Merge(&tmplist);
176 if (fHistStatistics[1] && hBin0) fHistStatistics[1]->Merge(&tmplist);
179 fHistStatistics[0] = static_cast<TH2F*>(hAll->Clone());
180 fHistStatistics[1] = static_cast<TH2F*>(hBin0->Clone());
181 fHistStatistics[0]->SetDirectory(0);
182 fHistStatistics[1]->SetDirectory(0);
193 //______________________________________________________________________________
194 Bool_t AliAODInputHandler::FinishEvent()
197 if (fMixingHandler) fMixingHandler->FinishEvent();
201 //______________________________________________________________________________
202 void AliAODInputHandler::AddFriend(char* filename)
205 TNamed* obj = new TNamed(filename, filename);
209 //______________________________________________________________________________
210 Option_t *AliAODInputHandler::GetDataType() const
212 // Returns handled data type.
216 //______________________________________________________________________________
217 TObject *AliAODInputHandler::GetStatistics(Option_t *option) const
219 // Get the statistics histogram(s) from the physics selection object. This
220 // should be called during FinishTaskOutput(). Option can be empty (default
221 // statistics histogram) or BIN0.
224 if (opt=="BIN0") return fHistStatistics[1];
225 return fHistStatistics[0];
228 void AliAODInputHandler::ConnectFriends()
230 // Connect the friend trees
232 TIter next(fFriends);
234 TString aodTreeFName,aodFriendTreeFName;
235 TTree *ttree = fTree->GetTree();
236 if (!ttree) ttree = fTree;
237 aodTreeFName = ttree->GetCurrentFile()->GetName();
239 while((obj = (TNamed*)next())) {
240 aodFriendTreeFName = aodTreeFName;
241 aodFriendTreeFName.ReplaceAll("AliAOD.root",obj->GetName());
242 aodFriendTreeFName.ReplaceAll("AliAODs.root",obj->GetName());
243 ttree->AddFriend("aodTree", aodFriendTreeFName.Data());
246 // Friends have to be merged
247 TNamed* filename = (TNamed*) (fFriends->At(0));
248 fFileToMerge = TFile::Open(filename->GetName());
250 fFileToMerge->GetObject("aodTree", fTreeToMerge);
251 if (!fAODEventToMerge) fAODEventToMerge = new AliAODEvent();
252 fAODEventToMerge->ReadFromTree(fTreeToMerge);
255 fFriendsConnected = kTRUE;
258 //______________________________________________________________________________
259 void AliAODInputHandler::CreatePIDResponse(Bool_t isMC/*=kFALSE*/)
262 // create the pid response object if it does not exist yet
264 if (fAODpidUtil) return;
265 fAODpidUtil=new AliAODpidUtil(isMC);