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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> | |
397596ed | 26 | |
27 | #include "AliAODInputHandler.h" | |
28 | #include "AliAODEvent.h" | |
29 | ||
30 | ClassImp(AliAODInputHandler) | |
31 | ||
32 | //______________________________________________________________________________ | |
33 | AliAODInputHandler::AliAODInputHandler() : | |
90e04a88 | 34 | AliInputEventHandler(), |
4195c9c9 | 35 | fEvent(0), |
26772015 | 36 | fFriends(new TList()) |
397596ed | 37 | { |
26772015 | 38 | // Default constructor |
397596ed | 39 | } |
40 | ||
41 | //______________________________________________________________________________ | |
26772015 | 42 | AliAODInputHandler::AliAODInputHandler(const char* name, const char* title): |
43 | AliInputEventHandler(name, title), | |
44 | fEvent(0), | |
45 | fFriends(new TList()) | |
397596ed | 46 | { |
26772015 | 47 | // Constructor |
397596ed | 48 | } |
49 | ||
50 | //______________________________________________________________________________ | |
26772015 | 51 | AliAODInputHandler::~AliAODInputHandler() |
397596ed | 52 | { |
26772015 | 53 | // Destructor |
54 | fFriends->Delete(); | |
397596ed | 55 | } |
56 | ||
26772015 | 57 | |
300d5701 | 58 | Bool_t AliAODInputHandler::Init(TTree* tree, Option_t* /*opt*/) |
397596ed | 59 | { |
300d5701 | 60 | // Initialisation necessary for each new tree |
61 | fTree = tree; | |
26772015 | 62 | TIter next(fFriends); |
63 | TNamed* obj; | |
64 | while(obj = (TNamed*)next()) { | |
65 | fTree->AddFriend("aodTree", obj->GetName()); | |
4195c9c9 | 66 | } |
67 | ||
300d5701 | 68 | if (!fTree) return kFALSE; |
397596ed | 69 | // Get pointer to AOD event |
300d5701 | 70 | if (fEvent) { |
71 | delete fEvent; | |
72 | fEvent = 0; | |
73 | } | |
397596ed | 74 | fEvent = new AliAODEvent(); |
300d5701 | 75 | |
933fd60f | 76 | fEvent->ReadFromTree(fTree); |
397596ed | 77 | return kTRUE; |
78 | } | |
79 | ||
fbb264e0 | 80 | Bool_t AliAODInputHandler::BeginEvent(Long64_t /*entry*/) |
81 | { | |
82 | // | |
83 | if (fTree) fTree->BranchRef(); | |
84 | return kTRUE; | |
85 | } | |
86 | ||
26772015 | 87 | void AliAODInputHandler::AddFriend(char* filename) |
88 | { | |
89 | // Add a friend tree | |
90 | TNamed* obj = new TNamed(filename, filename); | |
91 | fFriends->Add(obj); | |
92 | } |