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7c3c85cd | 1 | //-*- Mode: C++ -*- |
2 | // $Id: AliHLTJETConeFinder.cxx $ | |
3 | /************************************************************************** | |
4 | * This file is property of and copyright by the ALICE HLT Project * | |
5 | * ALICE Experiment at CERN, All rights reserved. * | |
6 | * * | |
7 | * Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de> * | |
8 | * for The ALICE HLT Project. * | |
9 | * * | |
10 | * Permission to use, copy, modify and distribute this software and its * | |
11 | * documentation strictly for non-commercial purposes is hereby granted * | |
12 | * without fee, provided that the above copyright notice appears in all * | |
13 | * copies and that both the copyright notice and this permission notice * | |
14 | * appear in the supporting documentation. The authors make no claims * | |
15 | * about the suitability of this software for any purpose. It is * | |
16 | * provided "as is" without express or implied warranty. * | |
17 | **************************************************************************/ | |
18 | ||
19 | /** @file AliHLTJETConeFinder.cxx | |
20 | @author Jochen Thaeder | |
21 | @date | |
22 | @brief Jet cone finder | |
23 | */ | |
24 | ||
25 | // see header file for class documentation | |
26 | // or | |
27 | // refer to README to build package | |
28 | // or | |
29 | // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt | |
30 | ||
31 | #if __GNUC__ >= 3 | |
32 | using namespace std; | |
33 | #endif | |
34 | ||
35 | #include "AliHLTJETReader.h" | |
36 | ||
37 | #include "AliHLTJETConeGrid.h" | |
38 | #include "AliHLTJETConeFinder.h" | |
39 | #include "AliHLTJETConeHeader.h" | |
40 | #include "AliHLTJETConeJetCandidate.h" | |
41 | #include "AliHLTJETConeEtaPhiCell.h" | |
42 | ||
43 | /** ROOT macro for the implementation of ROOT specific class methods */ | |
44 | ClassImp(AliHLTJETConeFinder) | |
45 | ||
46 | /* | |
47 | * --------------------------------------------------------------------------------- | |
48 | * Constructor / Destructor | |
49 | * --------------------------------------------------------------------------------- | |
50 | */ | |
51 | ||
52 | // ################################################################################# | |
53 | AliHLTJETConeFinder::AliHLTJETConeFinder() | |
54 | : | |
55 | AliJetFinder(), | |
56 | fGrid(NULL), | |
57 | fJets(NULL) { | |
58 | // see header file for class documentation | |
59 | // or | |
60 | // refer to README to build package | |
61 | // or | |
62 | // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt | |
63 | ||
64 | } | |
65 | ||
66 | // ################################################################################# | |
67 | AliHLTJETConeFinder::~AliHLTJETConeFinder() { | |
68 | // see header file for class documentation | |
69 | ||
70 | } | |
71 | ||
72 | /* | |
73 | * --------------------------------------------------------------------------------- | |
74 | * Initialize | |
75 | * --------------------------------------------------------------------------------- | |
76 | */ | |
77 | ||
78 | // ################################################################################# | |
79 | Int_t AliHLTJETConeFinder::Initialize() { | |
80 | // see header file for class documentation | |
81 | ||
82 | Int_t iResult = 0; | |
83 | ||
84 | if ( !fHeader || !fReader ) { | |
85 | HLTError("No header or reader set!"); | |
86 | return -EINPROGRESS; | |
87 | } | |
88 | ||
89 | // -- Initialize Reader | |
90 | AliHLTJETReader *reader = dynamic_cast<AliHLTJETReader*> (fReader); | |
f5561f3a | 91 | if (!reader) { |
92 | HLTError( "Casting Reader failed!"); | |
93 | return -EINPROGRESS; | |
94 | } | |
95 | ||
7c3c85cd | 96 | iResult = reader->Initialize(); |
97 | if ( iResult ) { | |
98 | HLTError( "Initializing Reader failed!"); | |
f5561f3a | 99 | return -EINPROGRESS; |
7c3c85cd | 100 | } |
101 | ||
102 | // -- Initialize Header | |
103 | AliHLTJETConeHeader *header = dynamic_cast<AliHLTJETConeHeader*> (fHeader); | |
f5561f3a | 104 | if (!header) { |
105 | HLTError( "Casting Header failed!"); | |
106 | return -EINPROGRESS; | |
107 | } | |
7c3c85cd | 108 | |
109 | iResult = header->Initialize(); | |
110 | if ( iResult ) { | |
111 | HLTError( "Initializing Header failed!"); | |
f5561f3a | 112 | return -EINPROGRESS; |
7c3c85cd | 113 | } |
114 | ||
115 | // -- Set ptr to grid | |
116 | fGrid = reader->GetGrid(); | |
117 | if ( ! fGrid ) { | |
118 | HLTError( "Getting ptr to grid failed!"); | |
119 | return -EINPROGRESS; | |
120 | } | |
121 | ||
122 | // -- Check ptr to output container | |
123 | if ( !fJets ) { | |
124 | HLTError( "Ptr to output container not set!"); | |
125 | return -EINPROGRESS; | |
126 | } | |
127 | ||
128 | return iResult; | |
129 | } | |
130 | ||
131 | // ################################################################################# | |
132 | void AliHLTJETConeFinder::Reset() { | |
133 | // see header file for class documentation | |
134 | ||
7c3c85cd | 135 | // -- Reset output container |
136 | if (fJets) | |
137 | fJets->Reset(); | |
138 | ||
139 | return; | |
140 | } | |
141 | ||
7c3c85cd | 142 | /* |
143 | * --------------------------------------------------------------------------------- | |
144 | * Process | |
145 | * --------------------------------------------------------------------------------- | |
146 | */ | |
147 | ||
148 | // ################################################################################# | |
149 | Bool_t AliHLTJETConeFinder::ProcessEvent() { | |
150 | // see header file for class documentation | |
151 | ||
7c3c85cd | 152 | // -- Reset |
153 | Reset(); | |
154 | ||
ba05d245 | 155 | // -- Pick up jet reader |
156 | AliHLTJETReader *reader = dynamic_cast<AliHLTJETReader*> (fReader); | |
157 | if ( !reader ) { | |
158 | HLTError("Error getting reader."); | |
159 | return kFALSE; | |
160 | } | |
161 | ||
7c3c85cd | 162 | // -- Fill Grid |
163 | if ( !reader->FillGrid() ){ | |
164 | HLTError("Error filling grid."); | |
165 | return kFALSE; | |
166 | } | |
167 | ||
168 | // -- Find Leading | |
169 | if ( FindConeLeading() ) { | |
170 | HLTError("Error finding leading."); | |
171 | return kFALSE; | |
172 | } | |
173 | ||
174 | // -- Find Jets | |
175 | if ( FindConeJets() ) { | |
176 | HLTError("Error finding jets."); | |
177 | return kFALSE; | |
178 | } | |
179 | ||
180 | // -- Fill Jets and apply jet cuts | |
181 | if ( FillConeJets() ) { | |
182 | HLTError("Error filling jets."); | |
183 | return kFALSE; | |
184 | } | |
185 | ||
186 | return kTRUE; | |
187 | } | |
188 | ||
189 | // ################################################################################# | |
1f9fec4a | 190 | Bool_t AliHLTJETConeFinder::ProcessHLTEvent() { |
7c3c85cd | 191 | // see header file for class documentation |
192 | ||
1f9fec4a | 193 | // -- Reset |
194 | Reset(); | |
195 | ||
7c3c85cd | 196 | // -- Find Leading |
197 | if ( FindConeLeading() ) { | |
198 | HLTError("Error finding leading."); | |
199 | return kFALSE; | |
200 | } | |
201 | ||
202 | // -- Find Jets | |
203 | if ( FindConeJets() ) { | |
204 | HLTError("Error finding jets."); | |
205 | return kFALSE; | |
206 | } | |
207 | ||
208 | // -- Fill Jets and apply jet cuts | |
209 | if ( FillConeJets() ) { | |
210 | HLTError("Error filling jets."); | |
211 | return kFALSE; | |
212 | } | |
213 | ||
214 | return kTRUE; | |
215 | } | |
216 | ||
217 | /* | |
218 | * --------------------------------------------------------------------------------- | |
219 | * Process - private | |
220 | * --------------------------------------------------------------------------------- | |
221 | */ | |
222 | ||
223 | // ################################################################################# | |
224 | Int_t AliHLTJETConeFinder::FindConeLeading() { | |
225 | // see header file for class documentation | |
226 | ||
227 | // -- Pick up jet reader | |
228 | AliHLTJETReader *reader = dynamic_cast<AliHLTJETReader*> (fReader); | |
ba05d245 | 229 | if ( !reader ) { |
230 | HLTError("Error getting reader."); | |
231 | return -EINPROGRESS; | |
232 | } | |
233 | ||
234 | // -- Pick up jet header | |
235 | AliHLTJETConeHeader* header = dynamic_cast<AliHLTJETConeHeader*> (fHeader); | |
236 | if ( !header ) { | |
237 | HLTError("Error getting header."); | |
238 | return -EINPROGRESS; | |
239 | } | |
5e2e85e8 | 240 | |
7c3c85cd | 241 | // -- Pick up jet canidates |
242 | TClonesArray* jetCandidates = reader->GetJetCandidates(); | |
1f9fec4a | 243 | |
5e2e85e8 | 244 | // -- Check for more than 1 jet candidate |
245 | if ( reader->GetNJetCandidates() > 1 ) { | |
7c3c85cd | 246 | |
5e2e85e8 | 247 | // -- Sort jet candidates with seed pt |
248 | jetCandidates->Sort(); | |
7c3c85cd | 249 | |
5e2e85e8 | 250 | // -- Use leading seed only |
251 | // Keep index 0, remove the others | |
ba05d245 | 252 | if ( header->GetUseLeading() ) { |
5e2e85e8 | 253 | |
254 | for ( Int_t iter = 1; iter < reader->GetNJetCandidates(); iter++ ) | |
255 | jetCandidates->RemoveAt(iter); | |
256 | ||
257 | reader->SetNJetCandidates(1); | |
258 | } | |
259 | ||
260 | } // if ( reader->GetNJetCandidates() > 1 ) { | |
261 | ||
7c3c85cd | 262 | // -- Resize the seed TClonesArray |
263 | jetCandidates->Compress(); | |
1f9fec4a | 264 | |
7c3c85cd | 265 | return 0; |
266 | } | |
267 | ||
268 | // ################################################################################# | |
269 | Int_t AliHLTJETConeFinder::FindConeJets() { | |
270 | // see header file for class documentation | |
271 | ||
272 | Int_t iResult = 0; | |
273 | ||
274 | // -- Pick up jet reader | |
275 | AliHLTJETReader *reader = dynamic_cast<AliHLTJETReader*> (fReader); | |
ba05d245 | 276 | if ( !reader ) { |
277 | HLTError("Error getting reader."); | |
278 | return -EINPROGRESS; | |
279 | } | |
280 | ||
7c3c85cd | 281 | // -- Pick up jet canidates |
282 | TClonesArray* jetCandidates = reader->GetJetCandidates(); | |
283 | ||
284 | // -- Loop over jet candidates | |
285 | for ( Int_t iter = 0; iter < reader->GetNJetCandidates(); iter++ ) { | |
286 | ||
287 | AliHLTJETConeJetCandidate* jet = reinterpret_cast<AliHLTJETConeJetCandidate*> ((*jetCandidates)[iter]); | |
288 | ||
289 | // -- Set iterator for cells around seed | |
290 | fGrid->SetCellIter( jet->GetSeedEtaIdx(), jet->GetSeedPhiIdx() ); | |
291 | ||
292 | Int_t cellIdx = 0; | |
293 | ||
294 | // -- Loop over cells around ssed | |
5e2e85e8 | 295 | while ( (cellIdx = fGrid->NextCell() ) >= 0 && !iResult) { |
7c3c85cd | 296 | |
297 | AliHLTJETConeEtaPhiCell* cell = NULL; | |
298 | if ( ! (cell = reinterpret_cast<AliHLTJETConeEtaPhiCell*>(fGrid->UncheckedAt(cellIdx))) ) | |
299 | continue; | |
300 | ||
301 | if ( ( iResult = jet->AddCell(cell) ) ) { | |
302 | HLTError( "Error adding cell %d to jet candiate %d", cellIdx, iter); | |
303 | continue; | |
304 | } | |
5e2e85e8 | 305 | } // while ( (cellIdx = fGrid->NextCell() ) >= 0 && !iResult) { |
7c3c85cd | 306 | |
307 | } // for ( Int_t iter = 0; iter < reader->GetNJetCandidates(); iter++ ) { | |
308 | ||
309 | return iResult; | |
310 | } | |
311 | ||
312 | // ################################################################################# | |
313 | Int_t AliHLTJETConeFinder::FillConeJets() { | |
314 | // see header file for class documentation | |
315 | ||
316 | Int_t iResult = 0; | |
317 | ||
318 | // -- Pick up jet reader | |
319 | AliHLTJETReader *reader = dynamic_cast<AliHLTJETReader*> (fReader); | |
ba05d245 | 320 | if ( !reader ) { |
321 | HLTError("Error getting reader."); | |
322 | return -EINPROGRESS; | |
323 | } | |
7c3c85cd | 324 | |
325 | // -- Pick up jet header | |
326 | AliHLTJETConeHeader *header = dynamic_cast<AliHLTJETConeHeader*> (fHeader); | |
ba05d245 | 327 | if ( !header ) { |
328 | HLTError("Error getting header."); | |
329 | return -EINPROGRESS; | |
330 | } | |
331 | ||
7c3c85cd | 332 | // -- Get jet canidates |
333 | TClonesArray* jetCandidates = reader->GetJetCandidates(); | |
334 | ||
335 | // -- Get jet cuts | |
336 | AliHLTJETJetCuts* jetCuts = header->GetJetCuts(); | |
337 | ||
338 | // -- Loop over jet candidates | |
339 | for ( Int_t iter = 0; iter < reader->GetNJetCandidates(); iter++ ) { | |
340 | ||
341 | AliHLTJETConeJetCandidate* jet = reinterpret_cast<AliHLTJETConeJetCandidate*> ((*jetCandidates)[iter]); | |
342 | ||
343 | // -- Apply jet cuts | |
344 | if ( ! jetCuts->IsSelected(jet) ) | |
345 | continue; | |
346 | ||
347 | // -- Add jet as AliAODJet | |
6ce099ba | 348 | fJets->AddJet(jet->GetEta(), jet->GetPhi(), jet->GetPt(), jet->GetEt()); |
349 | ||
7c3c85cd | 350 | } // for ( Int_t iter = 0; iter < reader->GetNJetCandidates(); iter++ ) { |
351 | ||
1f9fec4a | 352 | // xxx HLTDebug( "Added %d jets", fJets->GetNAODJets()); |
353 | HLTInfo( "Added %d jets", fJets->GetNAODJets()); | |
7c3c85cd | 354 | |
355 | return iResult; | |
356 | } |