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5fe09262 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | // Class AliMCEventHandler | |
19 | // This class gives access to MC truth during the analysis. | |
20 | // Monte Carlo truth is containe in the kinematics tree (produced particles) and | |
21 | // the tree of reference hits. | |
22 | // | |
23 | // Origin: Andreas Morsch, CERN, andreas.morsch@cern.ch | |
24 | //--------------------------------------------------------------------------------- | |
25 | ||
26 | ||
27 | ||
28 | #include "AliMCEventHandler.h" | |
415d9f5c | 29 | #include "AliMCEvent.h" |
82418625 | 30 | #include "AliPDG.h" |
5fe09262 | 31 | #include "AliTrackReference.h" |
32 | #include "AliHeader.h" | |
33 | #include "AliStack.h" | |
2c36081e | 34 | #include "AliLog.h" |
5fe09262 | 35 | |
36 | #include <TTree.h> | |
37 | #include <TFile.h> | |
38 | #include <TParticle.h> | |
0a05cd41 | 39 | #include <TString.h> |
5fe09262 | 40 | #include <TClonesArray.h> |
41 | #include <TDirectoryFile.h> | |
5fe09262 | 42 | |
43 | ClassImp(AliMCEventHandler) | |
44 | ||
45 | AliMCEventHandler::AliMCEventHandler() : | |
d2f1d9ef | 46 | AliVEventHandler(), |
415d9f5c | 47 | fMCEvent(new AliMCEvent()), |
5fe09262 | 48 | fFileE(0), |
49 | fFileK(0), | |
50 | fFileTR(0), | |
5fe09262 | 51 | fTreeE(0), |
52 | fTreeK(0), | |
53 | fTreeTR(0), | |
5efedd31 | 54 | fDirK(0), |
55 | fDirTR(0), | |
5fe09262 | 56 | fNEvent(-1), |
57 | fEvent(-1), | |
0a05cd41 | 58 | fPathName(new TString("./")), |
9aea8469 | 59 | fExtension(""), |
60 | fFileNumber(0), | |
969c7896 | 61 | fEventsPerFile(0), |
62 | fReadTR(kTRUE) | |
5fe09262 | 63 | { |
82418625 | 64 | // |
65 | // Default constructor | |
66 | // | |
67 | // Be sure to add all particles to the PDG database | |
68 | AliPDG::AddParticlesToPdgDataBase(); | |
5fe09262 | 69 | } |
70 | ||
71 | AliMCEventHandler::AliMCEventHandler(const char* name, const char* title) : | |
d2f1d9ef | 72 | AliVEventHandler(name, title), |
415d9f5c | 73 | fMCEvent(new AliMCEvent()), |
5fe09262 | 74 | fFileE(0), |
75 | fFileK(0), | |
76 | fFileTR(0), | |
5fe09262 | 77 | fTreeE(0), |
78 | fTreeK(0), | |
79 | fTreeTR(0), | |
5efedd31 | 80 | fDirK(0), |
81 | fDirTR(0), | |
5fe09262 | 82 | fNEvent(-1), |
83 | fEvent(-1), | |
0a05cd41 | 84 | fPathName(new TString("./")), |
9aea8469 | 85 | fExtension(""), |
86 | fFileNumber(0), | |
0cd61c1d | 87 | fEventsPerFile(0), |
88 | fReadTR(kTRUE) | |
5fe09262 | 89 | { |
82418625 | 90 | // |
91 | // Constructor | |
92 | // | |
93 | // Be sure to add all particles to the PDG database | |
94 | AliPDG::AddParticlesToPdgDataBase(); | |
5fe09262 | 95 | } |
96 | AliMCEventHandler::~AliMCEventHandler() | |
97 | { | |
98 | // Destructor | |
415d9f5c | 99 | delete fMCEvent; |
5fe09262 | 100 | delete fFileE; |
101 | delete fFileK; | |
102 | delete fFileTR; | |
103 | } | |
104 | ||
300d5701 | 105 | Bool_t AliMCEventHandler::Init(Option_t* opt) |
5fe09262 | 106 | { |
107 | // Initialize input | |
108 | // | |
6073f8c9 | 109 | if (!(strcmp(opt, "proof")) || !(strcmp(opt, "local"))) return kTRUE; |
110 | // | |
0a05cd41 | 111 | fFileE = TFile::Open(Form("%sgalice.root", fPathName->Data())); |
112 | if (!fFileE) AliFatal(Form("AliMCEventHandler:galice.root not found in directory %s ! \n", fPathName->Data())); | |
5fe09262 | 113 | |
415d9f5c | 114 | // |
115 | // Tree E | |
5fe09262 | 116 | fFileE->GetObject("TE", fTreeE); |
415d9f5c | 117 | // Connect Tree E to the MCEvent |
118 | fMCEvent->ConnectTreeE(fTreeE); | |
5fe09262 | 119 | fNEvent = fTreeE->GetEntries(); |
120 | // | |
121 | // Tree K | |
0a05cd41 | 122 | fFileK = TFile::Open(Form("%sKinematics%s.root", fPathName->Data(), fExtension)); |
2c36081e | 123 | if (!fFileK) AliFatal(Form("AliMCEventHandler:Kinematics.root not found in directory %s ! \n", fPathName)); |
9aea8469 | 124 | fEventsPerFile = fFileK->GetNkeys() - fFileK->GetNProcessIDs(); |
5fe09262 | 125 | // |
126 | // Tree TR | |
969c7896 | 127 | if (fReadTR) { |
128 | fFileTR = TFile::Open(Form("%sTrackRefs%s.root", fPathName->Data(), fExtension)); | |
129 | if (!fFileTR) AliWarning(Form("AliMCEventHandler:TrackRefs.root not found in directory %s ! \n", fPathName->Data())); | |
130 | } | |
5fe09262 | 131 | // |
132 | // Reset the event number | |
2c36081e | 133 | fEvent = -1; |
134 | fFileNumber = 0; | |
b544c64d | 135 | AliInfo(Form("Number of events in this directory %5d \n", fNEvent)); |
5fe09262 | 136 | return kTRUE; |
5fe09262 | 137 | } |
138 | ||
9aea8469 | 139 | Bool_t AliMCEventHandler::GetEvent(Int_t iev) |
140 | { | |
141 | // Load the event number iev | |
2c36081e | 142 | // |
143 | // Calculate the file number | |
415d9f5c | 144 | Int_t inew = iev / fEventsPerFile; |
9aea8469 | 145 | if (inew != fFileNumber) { |
146 | fFileNumber = inew; | |
147 | if (!OpenFile(fFileNumber)){ | |
148 | return kFALSE; | |
149 | } | |
150 | } | |
2c36081e | 151 | // Folder name |
5fe09262 | 152 | char folder[20]; |
9aea8469 | 153 | sprintf(folder, "Event%d", iev); |
5fe09262 | 154 | // TreeE |
9aea8469 | 155 | fTreeE->GetEntry(iev); |
5fe09262 | 156 | // Tree K |
5efedd31 | 157 | fFileK->GetObject(folder, fDirK); |
158 | if (!fDirK) { | |
2c36081e | 159 | AliWarning(Form("AliMCEventHandler: Event #%5d not found\n", iev)); |
9aea8469 | 160 | return kFALSE; |
161 | } | |
5efedd31 | 162 | fDirK ->GetObject("TreeK", fTreeK); |
415d9f5c | 163 | // Connect TreeK to MCEvent |
164 | fMCEvent->ConnectTreeK(fTreeK); | |
5fe09262 | 165 | //Tree TR |
07bd4750 | 166 | if (fFileTR) { |
5efedd31 | 167 | // Check which format has been read |
168 | fFileTR->GetObject(folder, fDirTR); | |
169 | fDirTR->GetObject("TreeTR", fTreeTR); | |
415d9f5c | 170 | // |
171 | // Connect TR to MCEvent | |
172 | fMCEvent->ConnectTreeTR(fTreeTR); | |
5fe09262 | 173 | } |
5fe09262 | 174 | // |
5fe09262 | 175 | return kTRUE; |
9aea8469 | 176 | } |
177 | ||
178 | Bool_t AliMCEventHandler::OpenFile(Int_t i) | |
179 | { | |
180 | // Open file i | |
181 | Bool_t ok = kTRUE; | |
182 | if (i > 0) { | |
183 | fExtension = Form("%d", i); | |
184 | } else { | |
185 | fExtension = ""; | |
186 | } | |
187 | ||
188 | ||
189 | delete fFileK; | |
0a05cd41 | 190 | fFileK = TFile::Open(Form("%sKinematics%s.root", fPathName->Data(), fExtension)); |
9aea8469 | 191 | if (!fFileK) { |
0a05cd41 | 192 | AliFatal(Form("AliMCEventHandler:Kinematics%s.root not found in directory %s ! \n", fExtension, fPathName->Data())); |
9aea8469 | 193 | ok = kFALSE; |
194 | } | |
195 | ||
196 | delete fFileTR; | |
0a05cd41 | 197 | fFileTR = TFile::Open(Form("%sTrackRefs%s.root", fPathName->Data(), fExtension)); |
9aea8469 | 198 | if (!fFileTR) { |
0a05cd41 | 199 | AliWarning(Form("AliMCEventHandler:TrackRefs%s.root not found in directory %s ! \n", fExtension, fPathName->Data())); |
9aea8469 | 200 | ok = kFALSE; |
201 | } | |
202 | ||
203 | return ok; | |
204 | } | |
205 | ||
ed97dc98 | 206 | Bool_t AliMCEventHandler::BeginEvent(Long64_t entry) |
9aea8469 | 207 | { |
208 | // Read the next event | |
ed97dc98 | 209 | if (entry == -1) { |
210 | fEvent++; | |
211 | entry = fEvent; | |
212 | } else { | |
213 | fEvent = entry; | |
214 | } | |
215 | ||
216 | if (entry >= fNEvent) { | |
f6065654 | 217 | AliWarning(Form("AliMCEventHandler: Event number out of range %5d %5d\n", entry,fNEvent)); |
9aea8469 | 218 | return kFALSE; |
219 | } | |
ed97dc98 | 220 | return GetEvent(entry); |
5fe09262 | 221 | } |
222 | ||
223 | Int_t AliMCEventHandler::GetParticleAndTR(Int_t i, TParticle*& particle, TClonesArray*& trefs) | |
224 | { | |
225 | // Retrieve entry i | |
415d9f5c | 226 | return (fMCEvent->GetParticleAndTR(i, particle, trefs)); |
5fe09262 | 227 | } |
228 | ||
2d8f26f6 | 229 | void AliMCEventHandler::DrawCheck(Int_t i, Int_t search) |
5fe09262 | 230 | { |
231 | // Retrieve entry i and draw momentum vector and hits | |
415d9f5c | 232 | fMCEvent->DrawCheck(i, search); |
5fe09262 | 233 | } |
234 | ||
890126ab | 235 | Bool_t AliMCEventHandler::Notify(const char *path) |
5fe09262 | 236 | { |
53faeca4 | 237 | // Notify about directory change |
238 | // The directory is taken from the 'path' argument | |
239 | // Reconnect trees | |
240 | TString fileName(path); | |
241 | if(fileName.Contains("AliESDs.root")){ | |
242 | fileName.ReplaceAll("AliESDs.root", ""); | |
243 | } | |
c8b5ce3a | 244 | else if(fileName.Contains("AliAOD.root")){ |
245 | fileName.ReplaceAll("AliAOD.root", ""); | |
246 | } | |
53faeca4 | 247 | else if(fileName.Contains("galice.root")){ |
248 | // for running with galice and kinematics alone... | |
249 | fileName.ReplaceAll("galice.root", ""); | |
250 | } | |
251 | ||
252 | *fPathName = fileName; | |
b544c64d | 253 | AliInfo(Form("Notify() Path: %s\n", fPathName->Data())); |
53faeca4 | 254 | |
f6065654 | 255 | ResetIO(); |
256 | InitIO(""); | |
257 | ||
5fe09262 | 258 | return kTRUE; |
259 | } | |
36e82a52 | 260 | |
5fe09262 | 261 | void AliMCEventHandler::ResetIO() |
262 | { | |
5efedd31 | 263 | // Clear header and stack |
415d9f5c | 264 | fMCEvent->Clean(); |
5efedd31 | 265 | |
36e82a52 | 266 | // Delete Tree E |
415d9f5c | 267 | delete fTreeE; fTreeE = 0; |
36e82a52 | 268 | |
5efedd31 | 269 | // Reset files |
89f249fc | 270 | if (fFileE) {delete fFileE; fFileE = 0;} |
271 | if (fFileK) {delete fFileK; fFileK = 0;} | |
272 | if (fFileTR) {delete fFileTR; fFileTR = 0;} | |
19cfde04 | 273 | fExtension=""; |
5fe09262 | 274 | } |
275 | ||
276 | ||
277 | Bool_t AliMCEventHandler::FinishEvent() | |
278 | { | |
5efedd31 | 279 | // Clean-up after each event |
280 | delete fDirTR; fDirTR = 0; | |
281 | delete fDirK; fDirK = 0; | |
415d9f5c | 282 | fMCEvent->FinishEvent(); |
5fe09262 | 283 | return kTRUE; |
284 | } | |
285 | ||
286 | Bool_t AliMCEventHandler::Terminate() | |
287 | { | |
288 | // Dummy | |
289 | return kTRUE; | |
290 | } | |
291 | ||
292 | Bool_t AliMCEventHandler::TerminateIO() | |
293 | { | |
294 | // Dummy | |
295 | return kTRUE; | |
296 | } | |
297 | ||
0a05cd41 | 298 | |
0931e76a | 299 | void AliMCEventHandler::SetInputPath(const char* fname) |
0a05cd41 | 300 | { |
301 | // Set the input path name | |
302 | delete fPathName; | |
303 | fPathName = new TString(fname); | |
304 | } |