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91923a38 | 1 | #include "AliHBTReaderInternal.h" |
2 | ||
91923a38 | 3 | #include <TTree.h> |
4 | #include <TFile.h> | |
5 | #include <TParticle.h> | |
f701e886 | 6 | #include <TError.h> |
91923a38 | 7 | #include <AliRun.h> |
8 | #include <AliMagF.h> | |
9 | ||
10 | #include "AliHBTRun.h" | |
11 | #include "AliHBTEvent.h" | |
12 | #include "AliHBTParticle.h" | |
13 | #include "AliHBTParticleCut.h" | |
14 | ||
15 | ||
91923a38 | 16 | ClassImp(AliHBTReaderInternal) |
17 | /********************************************************************/ | |
18 | ||
19 | AliHBTReaderInternal::AliHBTReaderInternal() | |
20 | { | |
f701e886 | 21 | //Defalut constructor |
91923a38 | 22 | fParticles = 0x0; |
23 | fTracks = 0x0; | |
24 | fIsRead = kFALSE; | |
25 | } | |
26 | /********************************************************************/ | |
27 | ||
28 | AliHBTReaderInternal::AliHBTReaderInternal(const char *filename):fFileName(filename) | |
29 | { | |
f701e886 | 30 | //constructor |
31 | //filename - name of file to open | |
91923a38 | 32 | fParticles = new AliHBTRun(); |
33 | fTracks = new AliHBTRun(); | |
34 | fIsRead = kFALSE; | |
35 | } | |
36 | /********************************************************************/ | |
f701e886 | 37 | |
91923a38 | 38 | AliHBTReaderInternal::AliHBTReaderInternal(TObjArray* dirs, const char *filename): |
39 | AliHBTReader(dirs),fFileName(filename) | |
40 | { | |
f701e886 | 41 | //ctor |
42 | //dirs contains strings with directories to look data in | |
43 | //filename - name of file to open | |
91923a38 | 44 | fParticles = new AliHBTRun(); |
45 | fTracks = new AliHBTRun(); | |
46 | fIsRead = kFALSE; | |
47 | } | |
f701e886 | 48 | /********************************************************************/ |
49 | ||
91923a38 | 50 | AliHBTReaderInternal::~AliHBTReaderInternal() |
51 | { | |
52 | //desctructor | |
53 | delete fParticles; | |
54 | delete fTracks; | |
55 | } | |
56 | /********************************************************************/ | |
f701e886 | 57 | |
91923a38 | 58 | AliHBTEvent* AliHBTReaderInternal::GetParticleEvent(Int_t n) |
59 | { | |
60 | //returns Nth event with simulated particles | |
61 | if (!fIsRead) | |
62 | if(Read(fParticles,fTracks)) | |
63 | { | |
64 | Error("GetParticleEvent","Error in reading"); | |
65 | return 0x0; | |
66 | } | |
67 | return fParticles->GetEvent(n); | |
68 | } | |
69 | /********************************************************************/ | |
f701e886 | 70 | |
91923a38 | 71 | AliHBTEvent* AliHBTReaderInternal::GetTrackEvent(Int_t n) |
72 | { | |
73 | //returns Nth event with reconstructed tracks | |
74 | if (!fIsRead) | |
75 | if(Read(fParticles,fTracks)) | |
76 | { | |
77 | Error("GetTrackEvent","Error in reading"); | |
78 | return 0x0; | |
79 | } | |
80 | return fTracks->GetEvent(n); | |
81 | } | |
82 | /********************************************************************/ | |
83 | ||
84 | Int_t AliHBTReaderInternal::GetNumberOfPartEvents() | |
85 | { | |
86 | //returns number of events of particles | |
87 | if (!fIsRead) | |
88 | if ( Read(fParticles,fTracks)) | |
89 | { | |
90 | Error("GetNumberOfPartEvents","Error in reading"); | |
91 | return 0; | |
92 | } | |
93 | return fParticles->GetNumberOfEvents(); | |
94 | } | |
95 | ||
96 | /********************************************************************/ | |
97 | Int_t AliHBTReaderInternal::GetNumberOfTrackEvents() | |
98 | { | |
99 | //returns number of events of tracks | |
100 | if (!fIsRead) | |
101 | if(Read(fParticles,fTracks)) | |
102 | { | |
103 | Error("GetNumberOfTrackEvents","Error in reading"); | |
104 | return 0; | |
105 | } | |
106 | return fTracks->GetNumberOfEvents(); | |
107 | } | |
108 | /********************************************************************/ | |
109 | ||
91923a38 | 110 | Int_t AliHBTReaderInternal::Read(AliHBTRun* particles, AliHBTRun *tracks) |
111 | { | |
112 | //reads data and puts put to the particles and tracks objects | |
113 | //reurns 0 if everything is OK | |
114 | // | |
f701e886 | 115 | Info("Read",""); |
91923a38 | 116 | Int_t i; //iterator and some temprary values |
9d09c308 | 117 | Int_t totalNevents = 0; //total number of read events |
91923a38 | 118 | Int_t Nevents = 0; |
9d09c308 | 119 | Int_t currentdir = 0; |
120 | Int_t Ndirs; | |
f701e886 | 121 | Int_t counter; |
91923a38 | 122 | TFile *aFile;//file with tracks |
9d09c308 | 123 | AliHBTParticle* tpart = 0x0, *ttrack = 0x0; |
91923a38 | 124 | |
125 | if (!particles) //check if an object is instatiated | |
126 | { | |
127 | Error("Read"," particles object must instatiated before passing it to the reader"); | |
128 | } | |
129 | if (!tracks) //check if an object is instatiated | |
130 | { | |
131 | Error("Read"," tracks object must instatiated before passing it to the reader"); | |
132 | } | |
133 | particles->Reset();//clear runs == delete all old events | |
134 | tracks->Reset(); | |
135 | ||
91923a38 | 136 | if (fDirs) //if array with directories is supplied by user |
137 | { | |
138 | Ndirs = fDirs->GetEntries(); //get the number if directories | |
139 | } | |
140 | else | |
141 | { | |
142 | Ndirs = 0; //if the array is not supplied read only from current directory | |
143 | } | |
144 | ||
145 | TClonesArray* pbuffer = new TClonesArray("AliHBTParticle",15000); | |
146 | TClonesArray* tbuffer = new TClonesArray("AliHBTParticle",15000); | |
147 | ||
148 | do //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./" | |
149 | { | |
150 | ||
151 | if( (i=OpenFile(aFile, currentdir)) ) | |
152 | { | |
153 | Error("Read","Exiting due to problems with opening files. Errorcode %d",i); | |
154 | return i; | |
155 | } | |
156 | /***************************/ | |
157 | /***************************/ | |
158 | /***************************/ | |
159 | ||
160 | TTree* tree = (TTree*)aFile->Get("data"); | |
161 | if (tree == 0x0) | |
162 | { | |
163 | Error("Read","Can not get the tree"); | |
164 | return 1; | |
165 | } | |
166 | ||
167 | TBranch *trackbranch=tree->GetBranch("tracks");//get the branch with tracks | |
168 | if (trackbranch == 0x0) ////check if we got the branch | |
169 | {//if not return with error | |
170 | Warning("Read","Can't find a branch with tracks !\n"); | |
171 | } | |
172 | else | |
173 | { | |
174 | trackbranch->SetAddress(&tbuffer); | |
175 | } | |
176 | ||
177 | TBranch *partbranch=tree->GetBranch("particles");//get the branch with particles | |
178 | if (partbranch == 0x0) ////check if we got the branch | |
179 | {//if not return with error | |
180 | Warning("Read","Can't find a branch with particles !\n"); | |
181 | } | |
182 | else | |
183 | { | |
184 | partbranch->SetAddress(&pbuffer); | |
185 | } | |
186 | ||
187 | Nevents = (Int_t)tree->GetEntries(); | |
f701e886 | 188 | Info("Read","________________________________________________________"); |
189 | Info("Read","Found %d event(s) in directory %s",Nevents,GetDirName(currentdir).Data()); | |
91923a38 | 190 | |
191 | for (Int_t currentEvent =0; currentEvent<Nevents;currentEvent++) | |
9d09c308 | 192 | { |
f701e886 | 193 | Info("Read","Event %d",currentEvent); |
9d09c308 | 194 | tree->GetEvent(currentEvent); |
f701e886 | 195 | |
196 | counter = 0; | |
9d09c308 | 197 | if (partbranch && trackbranch) |
198 | { | |
199 | for(i = 0; i < pbuffer->GetEntries(); i++) | |
200 | { | |
9d09c308 | 201 | tpart = dynamic_cast<AliHBTParticle*>(pbuffer->At(i)); |
202 | ttrack = dynamic_cast<AliHBTParticle*>(tbuffer->At(i)); | |
203 | ||
f701e886 | 204 | if( tpart == 0x0 ) continue; //if returned pointer is NULL |
205 | if( tpart->GetPDG()==0x0 ) continue; //if particle has crezy PDG code (not known to our database) | |
206 | if( Pass(tpart) ) continue; //check if we are intersted with particles of this type | |
9d09c308 | 207 | //if not take next partilce |
208 | AliHBTParticle* part = new AliHBTParticle(*tpart); | |
209 | AliHBTParticle* track = new AliHBTParticle(*ttrack); | |
210 | particles->AddParticle(totalNevents,part);//put track and particle on the run | |
211 | tracks->AddParticle(totalNevents,track); | |
f701e886 | 212 | counter++; |
9d09c308 | 213 | } |
f701e886 | 214 | Info("Read"," Read: %d particles and tracks",counter); |
9d09c308 | 215 | } |
216 | else | |
f701e886 | 217 | { |
91923a38 | 218 | if (partbranch) |
219 | { | |
220 | for(i = 0; i < pbuffer->GetEntries(); i++) | |
221 | { | |
9d09c308 | 222 | tpart = dynamic_cast<AliHBTParticle*>(pbuffer->At(i)); |
223 | if(tpart == 0x0) continue; //if returned pointer is NULL | |
224 | if(tpart->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database) | |
225 | if(Pass(tpart)) continue; //check if we are intersted with particles of this type | |
226 | //if not take next partilce | |
227 | ||
228 | AliHBTParticle* part = new AliHBTParticle(*tpart); | |
229 | particles->AddParticle(totalNevents,part);//put track and particle on the run | |
f701e886 | 230 | counter++; |
91923a38 | 231 | } |
f701e886 | 232 | Info("Read"," Read: %d particles and tracks",counter); |
91923a38 | 233 | } |
f701e886 | 234 | else Info("Read"," Read: 0 particles"); |
91923a38 | 235 | |
236 | if (trackbranch) | |
237 | { | |
238 | for(i = 0; i < tbuffer->GetEntries(); i++) | |
239 | { | |
9d09c308 | 240 | tpart = dynamic_cast<AliHBTParticle*>(tbuffer->At(i)); |
241 | if(tpart == 0x0) continue; //if returned pointer is NULL | |
242 | if(tpart->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database) | |
243 | if(Pass(tpart)) continue; //check if we are intersted with particles of this type | |
91923a38 | 244 | //if not take next partilce |
9d09c308 | 245 | AliHBTParticle* part = new AliHBTParticle(*tpart); |
246 | tracks->AddParticle(totalNevents,part);//put track and particle on the run | |
f701e886 | 247 | counter++; |
91923a38 | 248 | } |
f701e886 | 249 | Info("Read"," Read: %d tracks",counter); |
91923a38 | 250 | } |
f701e886 | 251 | else Info("Read"," Read: 0 tracks"); |
9d09c308 | 252 | } |
253 | totalNevents++; | |
91923a38 | 254 | } |
91923a38 | 255 | |
e9b3bfa8 | 256 | /***************************/ |
257 | /***************************/ | |
258 | /***************************/ | |
259 | currentdir++; | |
260 | delete tree; | |
261 | aFile->Close(); | |
262 | delete aFile; | |
263 | aFile = 0x0; | |
9d09c308 | 264 | |
91923a38 | 265 | }while(currentdir < Ndirs); |
266 | ||
e9b3bfa8 | 267 | delete pbuffer; |
268 | delete tbuffer; | |
91923a38 | 269 | fIsRead = kTRUE; |
270 | return 0; | |
271 | } | |
272 | ||
273 | /********************************************************************/ | |
274 | ||
275 | Int_t AliHBTReaderInternal::OpenFile(TFile*& aFile,Int_t event) | |
276 | { | |
277 | ||
278 | const TString& dirname = GetDirName(event); | |
279 | if (dirname == "") | |
280 | { | |
281 | Error("OpenFile","Can not get directory name"); | |
282 | return 4; | |
283 | } | |
284 | ||
285 | TString filename = dirname +"/"+ fFileName; | |
286 | aFile = TFile::Open(filename.Data()); | |
287 | if ( aFile == 0x0 ) | |
288 | { | |
289 | Error("OpenFiles","Can't open file with tacks named %s",filename.Data()); | |
290 | return 1; | |
291 | } | |
292 | if (!aFile->IsOpen()) | |
293 | { | |
294 | Error("OpenFiles","Can't open file with tacks named %s",filename.Data()); | |
295 | return 1; | |
296 | } | |
297 | return 0; | |
298 | } | |
f701e886 | 299 | /********************************************************************/ |
91923a38 | 300 | |
301 | Int_t AliHBTReaderInternal::Write(AliHBTReader* reader,const char* outfile) | |
302 | { | |
f701e886 | 303 | //reads tracks from reader and writes runs to file |
304 | Int_t i,j; | |
91923a38 | 305 | |
f701e886 | 306 | ::Info("AliHBTReaderInternal::Write","________________________________________________________"); |
307 | ::Info("AliHBTReaderInternal::Write","________________________________________________________"); | |
308 | ::Info("AliHBTReaderInternal::Write","________________________________________________________"); | |
9d09c308 | 309 | |
91923a38 | 310 | TFile *histoOutput = TFile::Open(outfile,"recreate"); |
311 | ||
312 | if (!histoOutput->IsOpen()) | |
313 | { | |
f701e886 | 314 | ::Error("AliHBTReaderInternal::Write","File is not opened"); |
91923a38 | 315 | return 1; |
316 | } | |
317 | ||
91923a38 | 318 | TTree *tracktree = new TTree("data","Tree with tracks"); |
319 | ||
320 | TClonesArray* pbuffer = new TClonesArray("AliHBTParticle",15000); | |
321 | TClonesArray* tbuffer = new TClonesArray("AliHBTParticle",15000); | |
91923a38 | 322 | |
323 | TClonesArray &particles = *pbuffer; | |
324 | TClonesArray &tracks = *tbuffer; | |
325 | ||
326 | TString name("Tracks"); | |
91923a38 | 327 | |
328 | Int_t NT = reader->GetNumberOfTrackEvents(); | |
329 | Int_t NP = reader->GetNumberOfPartEvents(); | |
330 | ||
331 | Bool_t trck = (NT > 0) ? kTRUE : kFALSE; | |
332 | Bool_t part = (NP > 0) ? kTRUE : kFALSE; | |
333 | ||
334 | TBranch *trackbranch = 0x0, *partbranch = 0x0; | |
335 | ||
91923a38 | 336 | if (trck) trackbranch = tracktree->Branch("tracks","TClonesArray",&tbuffer); |
337 | if (part) partbranch = tracktree->Branch("particles","TClonesArray",&pbuffer); | |
91923a38 | 338 | |
339 | if ( (trck) && (part) && (NP != NT)) | |
340 | { | |
f701e886 | 341 | ::Warning("AliHBTReaderInternal::Write","Number of track and particle events is different"); |
91923a38 | 342 | } |
343 | ||
344 | Int_t N; | |
345 | if (NT >= NP ) N = NT; else N = NP; | |
346 | ||
347 | for ( i =0;i< N; i++) | |
348 | { | |
f701e886 | 349 | ::Info("AliHBTReaderInternal::Write","Event %d",i+1); |
91923a38 | 350 | if (trck && (i<=NT)) |
351 | { | |
352 | AliHBTEvent* trackev = reader->GetTrackEvent(i); | |
353 | for ( j = 0; j< trackev->GetNumberOfParticles();j++) | |
354 | { | |
9d09c308 | 355 | const AliHBTParticle& t= *(trackev->GetParticle(j)); |
356 | new (tracks[j]) AliHBTParticle(t); | |
91923a38 | 357 | } |
f701e886 | 358 | ::Info("AliHBTReaderInternal::Write"," Tracks: %d",j); |
359 | }else ::Info("AliHBTReaderInternal::Write","NO TRACKS"); | |
91923a38 | 360 | |
361 | if (part && (i<=NP)) | |
362 | { | |
91923a38 | 363 | AliHBTEvent* partev = reader->GetParticleEvent(i); |
91923a38 | 364 | for ( j = 0; j< partev->GetNumberOfParticles();j++) |
365 | { | |
9d09c308 | 366 | const AliHBTParticle& part= *(partev->GetParticle(j)); |
9d09c308 | 367 | new (particles[j]) AliHBTParticle(part); |
91923a38 | 368 | } |
f701e886 | 369 | ::Info("AliHBTReaderInternal::Write"," Particles: %d",j); |
370 | }else ::Info("AliHBTReaderInternal::Write","NO PARTICLES"); | |
91923a38 | 371 | |
91923a38 | 372 | histoOutput->cd(); |
373 | tracktree->Fill(); | |
9d09c308 | 374 | tracktree->AutoSave(); |
91923a38 | 375 | tbuffer->Delete(); |
376 | pbuffer->Delete(); | |
91923a38 | 377 | } |
378 | ||
91923a38 | 379 | histoOutput->cd(); |
91923a38 | 380 | tracktree->Write(0,TObject::kOverwrite); |
9d09c308 | 381 | delete tracktree; |
91923a38 | 382 | |
9d09c308 | 383 | tbuffer->SetOwner(); |
384 | pbuffer->SetOwner(); | |
385 | delete pbuffer; | |
386 | delete tbuffer; | |
387 | ||
388 | histoOutput->Close(); | |
91923a38 | 389 | return 0; |
390 | } |