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fab17817 | 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 multiple VEvent input. | |
20 | // This class handles multiple inputs for event mixing. | |
21 | // Author: Andreas Morsch, CERN | |
22 | //------------------------------------------------------------------------- | |
23 | ||
24 | #include "AliMultiEventInputHandler.h" | |
25 | #include "AliVEvent.h" | |
26 | #include "AliAODEvent.h" | |
27 | #include "AliESDEvent.h" | |
28 | #include "AliVEventPool.h" | |
3c329509 | 29 | #include "AliVCuts.h" |
fab17817 | 30 | #include "AliLog.h" |
31 | #include <TObjArray.h> | |
32 | #include <TTree.h> | |
28a79204 | 33 | #include <TList.h> |
34 | #include <TEntryList.h> | |
fab17817 | 35 | |
36 | ||
37 | ClassImp(AliMultiEventInputHandler) | |
38 | ||
39 | AliMultiEventInputHandler::AliMultiEventInputHandler() : | |
40 | AliInputEventHandler(), | |
41 | fBufferSize(0), | |
42 | fFormat(1), | |
43 | fNBuffered(0), | |
44 | fIndex(0), | |
45 | fCurrentBin(0), | |
28a79204 | 46 | fCurrentEvt(0), |
47 | fInit(0), | |
fab17817 | 48 | fEventPool(0), |
3c329509 | 49 | fEventBuffer(0), |
50 | fEventSkipped(0) | |
fab17817 | 51 | { |
52 | // Default constructor | |
53 | } | |
54 | ||
55 | //______________________________________________________________________________ | |
56 | AliMultiEventInputHandler::AliMultiEventInputHandler(Int_t size, Int_t format) : | |
57 | AliInputEventHandler(), | |
58 | fBufferSize(size), | |
59 | fFormat(format), | |
60 | fNBuffered(0), | |
61 | fIndex(0), | |
62 | fCurrentBin(0), | |
28a79204 | 63 | fCurrentEvt(0), |
64 | fInit(0), | |
fab17817 | 65 | fEventPool(0), |
3c329509 | 66 | fEventBuffer(0), |
67 | fEventSkipped(0) | |
fab17817 | 68 | { |
67b28e0a | 69 | // constructor |
fab17817 | 70 | } |
71 | ||
72 | //______________________________________________________________________________ | |
73 | AliMultiEventInputHandler::AliMultiEventInputHandler(const char* name, const char* title, Int_t size, Int_t format): | |
74 | AliInputEventHandler(name, title), | |
75 | fBufferSize(size), | |
76 | fFormat(format), | |
77 | fNBuffered(0), | |
78 | fIndex(0), | |
79 | fCurrentBin(0), | |
28a79204 | 80 | fCurrentEvt(0), |
81 | fInit(0), | |
fab17817 | 82 | fEventPool(0), |
3c329509 | 83 | fEventBuffer(0), |
84 | fEventSkipped(0) | |
fab17817 | 85 | { |
86 | // Constructor | |
67b28e0a | 87 | |
fab17817 | 88 | } |
89 | ||
90 | //______________________________________________________________________________ | |
91 | AliMultiEventInputHandler::~AliMultiEventInputHandler() | |
92 | { | |
93 | // Destructor | |
94 | } | |
95 | ||
96 | Bool_t AliMultiEventInputHandler::Init(TTree* tree, Option_t* /*opt*/) | |
97 | { | |
98 | // Initialisation necessary for each new tree | |
67b28e0a | 99 | if (!fEventBuffer) { |
100 | fEventBuffer = new AliVEvent*[fBufferSize]; | |
101 | ||
102 | for (Int_t i = 0; i < fBufferSize; i++) | |
103 | if (fFormat == 1) { | |
104 | fEventBuffer[i] = new AliAODEvent(); | |
105 | } else if (fFormat == 0) { | |
106 | fEventBuffer[i] = new AliESDEvent(); | |
107 | } else{ | |
108 | AliWarning(Form("Unknown Format %5d", fFormat)); | |
109 | } | |
110 | } | |
111 | ||
112 | ||
fab17817 | 113 | fTree = tree; |
28a79204 | 114 | fInit = 1; |
115 | ||
fab17817 | 116 | if (!fTree) return kFALSE; |
47482059 | 117 | for (Int_t i = 0; i < fBufferSize; i++) |
118 | fEventBuffer[i]->Clear(); | |
fab17817 | 119 | fIndex = 0; |
120 | fNBuffered = 1; | |
121 | return kTRUE; | |
122 | } | |
123 | ||
47482059 | 124 | |
125 | Bool_t AliMultiEventInputHandler::Notify(const char */*path*/) | |
126 | { | |
67b28e0a | 127 | // Connect to new tree |
2da1d158 | 128 | |
28a79204 | 129 | TList* connectedList = (TList*) (fTree->GetUserInfo()->FindObject("AODObjectsConnectedToTree")); |
130 | if (connectedList && !fInit) { | |
67b28e0a | 131 | fEventBuffer[0]->ReadFromTree(fTree, "reconnect"); |
28a79204 | 132 | } else { |
133 | if (fInit) fEventBuffer[0]->ReadFromTree(fTree, ""); | |
588195ca | 134 | } |
135 | ||
28a79204 | 136 | fCurrentEvt = 0; |
137 | fInit = 0; | |
67b28e0a | 138 | |
47482059 | 139 | return (kTRUE); |
140 | } | |
141 | ||
fab17817 | 142 | Bool_t AliMultiEventInputHandler::BeginEvent(Long64_t /*entry*/) |
143 | { | |
144 | // Actions before analysis of each event | |
145 | // | |
146 | // Reset the number of events buffered for this bin to 0 | |
2da1d158 | 147 | |
fab17817 | 148 | if (fCurrentBin != (fEventPool->BinNumber())) { |
149 | fCurrentBin = fEventPool->BinNumber(); | |
150 | fNBuffered = 0; | |
151 | } | |
3c329509 | 152 | // |
153 | // Event selection | |
154 | // | |
155 | if (fFormat == 0) { | |
156 | fIsSelectedResult = 0; | |
157 | if (fEventCuts && !IsUserCallSelectionMask()) | |
158 | fIsSelectedResult = | |
159 | fEventCuts->GetSelectionMask((AliESDEvent*)fEventBuffer[fIndex]); | |
160 | } | |
161 | ||
fab17817 | 162 | return kTRUE; |
163 | } | |
164 | ||
165 | Bool_t AliMultiEventInputHandler::FinishEvent() | |
166 | { | |
167 | // | |
168 | // Connect the next event in the buffer to the tree | |
3c329509 | 169 | if (!fEventSkipped) fIndex++; |
fab17817 | 170 | fIndex %= fBufferSize; |
171 | AliInfo(Form("Connecting buffer entry %5d", fIndex)); | |
47482059 | 172 | fEventBuffer[fIndex]->Clear(); |
28a79204 | 173 | fCurrentEvt++; |
174 | if (fEventBuffer[fIndex]->GetList() && fCurrentEvt > (fBufferSize - 1)) | |
175 | fEventBuffer[fIndex]->GetList()->Delete(); | |
176 | ||
fab17817 | 177 | fEventBuffer[fIndex]->ReadFromTree(fTree, "reconnect"); |
178 | ||
179 | fNBuffered++; | |
180 | if (fNBuffered > fBufferSize) fNBuffered = fBufferSize; | |
2da1d158 | 181 | |
28a79204 | 182 | Int_t nmax = fTree->GetEntries(); |
183 | if (fTree->GetEntryList()) { | |
184 | nmax = (fTree->GetEntryList()->GetN()); | |
185 | } else { | |
186 | if (fTree->GetTree()) nmax = fTree->GetTree()->GetEntries(); | |
187 | } | |
188 | ||
189 | if (fCurrentEvt == nmax) | |
190 | { | |
191 | for (Int_t i = 0; i < fBufferSize; i++) { | |
192 | fEventBuffer[i]->Clear(); | |
193 | } | |
194 | } | |
195 | ||
fab17817 | 196 | return (kTRUE); |
197 | } | |
198 | ||
fab17817 | 199 | AliVEvent* AliMultiEventInputHandler::GetEvent(Int_t iev) const |
200 | { | |
201 | // Get event number iev from buffer | |
202 | if ((iev < 0) || (iev >= fBufferSize)) | |
203 | { | |
204 | AliWarning(Form("Event number out of range: %10d", iev)); | |
205 | return 0; | |
206 | } | |
207 | ||
208 | iev = fIndex - (fBufferSize - 1 - iev); | |
209 | if (iev < 0) iev += fBufferSize; | |
210 | AliInfo(Form("Event index in buffer is %5d", iev)); | |
211 | return (fEventBuffer[iev]); | |
212 | } | |
213 |