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397596ed | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //------------------------------------------------------------------------- | |
19 | // Event handler for AOD input | |
20 | // Author: Andreas Morsch, CERN | |
21 | //------------------------------------------------------------------------- | |
22 | ||
933fd60f | 23 | #include <TTree.h> |
26772015 | 24 | #include <TList.h> |
25 | #include <TNamed.h> | |
fb0cfe69 | 26 | #include <TFile.h> |
397596ed | 27 | |
28 | #include "AliAODInputHandler.h" | |
29 | #include "AliAODEvent.h" | |
30 | ||
31 | ClassImp(AliAODInputHandler) | |
32 | ||
c2b6979d | 33 | static Option_t *gAODDataType = "AOD"; |
34 | ||
397596ed | 35 | //______________________________________________________________________________ |
36 | AliAODInputHandler::AliAODInputHandler() : | |
90e04a88 | 37 | AliInputEventHandler(), |
4195c9c9 | 38 | fEvent(0), |
04a79fa0 | 39 | fMCEvent(new AliMCEvent()), |
26772015 | 40 | fFriends(new TList()) |
397596ed | 41 | { |
26772015 | 42 | // Default constructor |
397596ed | 43 | } |
44 | ||
45 | //______________________________________________________________________________ | |
26772015 | 46 | AliAODInputHandler::AliAODInputHandler(const char* name, const char* title): |
47 | AliInputEventHandler(name, title), | |
48 | fEvent(0), | |
04a79fa0 | 49 | fMCEvent(new AliMCEvent()), |
26772015 | 50 | fFriends(new TList()) |
397596ed | 51 | { |
26772015 | 52 | // Constructor |
397596ed | 53 | } |
54 | ||
55 | //______________________________________________________________________________ | |
26772015 | 56 | AliAODInputHandler::~AliAODInputHandler() |
397596ed | 57 | { |
26772015 | 58 | // Destructor |
59 | fFriends->Delete(); | |
397596ed | 60 | } |
61 | ||
26772015 | 62 | |
300d5701 | 63 | Bool_t AliAODInputHandler::Init(TTree* tree, Option_t* /*opt*/) |
397596ed | 64 | { |
300d5701 | 65 | // Initialisation necessary for each new tree |
66 | fTree = tree; | |
26772015 | 67 | TIter next(fFriends); |
68 | TNamed* obj; | |
d329cad3 | 69 | |
70 | if (!fTree) return kFALSE; | |
d20b6757 | 71 | fTree->GetEntry(0); |
fb0cfe69 | 72 | TString aodTreeFName,aodFriendTreeFName; |
73 | ||
8ac4fa64 | 74 | while((obj = (TNamed*)next())) { |
ced57103 | 75 | if (fTree->GetTree()) { |
fb0cfe69 | 76 | aodTreeFName = (fTree->GetTree()->GetCurrentFile())->GetName(); |
77 | aodFriendTreeFName = aodTreeFName; | |
78 | aodFriendTreeFName.ReplaceAll("AliAOD.root",obj->GetName()); | |
79 | aodFriendTreeFName.ReplaceAll("AliAODs.root",obj->GetName()); | |
80 | (fTree->GetTree())->AddFriend("aodTree", aodFriendTreeFName.Data()); | |
ced57103 | 81 | } else { |
d20b6757 | 82 | aodTreeFName = (fTree->GetCurrentFile())->GetName(); |
83 | aodFriendTreeFName = aodTreeFName; | |
84 | aodFriendTreeFName.ReplaceAll("AliAOD.root",obj->GetName()); | |
85 | aodFriendTreeFName.ReplaceAll("AliAODs.root",obj->GetName()); | |
86 | fTree->AddFriend("aodTree", aodFriendTreeFName.Data()); | |
ced57103 | 87 | } |
4195c9c9 | 88 | } |
d329cad3 | 89 | |
90 | ||
91 | SwitchOffBranches(); | |
92 | SwitchOnBranches(); | |
4195c9c9 | 93 | |
397596ed | 94 | // Get pointer to AOD event |
316cf4cc | 95 | if (!fEvent) fEvent = new AliAODEvent(); |
300d5701 | 96 | |
933fd60f | 97 | fEvent->ReadFromTree(fTree); |
04a79fa0 | 98 | |
397596ed | 99 | return kTRUE; |
100 | } | |
101 | ||
fbb264e0 | 102 | Bool_t AliAODInputHandler::BeginEvent(Long64_t /*entry*/) |
103 | { | |
104 | // | |
04a79fa0 | 105 | TClonesArray* mcParticles = (TClonesArray*) (fEvent->FindListObject("mcparticles")); |
106 | if (mcParticles) fMCEvent->SetParticleArray(mcParticles); | |
fbb264e0 | 107 | return kTRUE; |
108 | } | |
109 | ||
26772015 | 110 | void AliAODInputHandler::AddFriend(char* filename) |
111 | { | |
112 | // Add a friend tree | |
113 | TNamed* obj = new TNamed(filename, filename); | |
114 | fFriends->Add(obj); | |
115 | } | |
c2b6979d | 116 | |
117 | Option_t *AliAODInputHandler::GetDataType() const | |
118 | { | |
119 | // Returns handled data type. | |
120 | return gAODDataType; | |
121 | } |