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2af56f28 | 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 | ||
19 | /* | |
20 | Realisation of an AliVEventPool based on THnSparse | |
21 | Author Peter Hristov | |
22 | Peter.Hristov@cern.ch | |
23 | ||
24 | Possible usage: three steps | |
25 | 1) Creation of a XML tag collection in aliensh | |
26 | ||
27 | aliensh:> find -x charm /alice/sim/PDC_08/LHC08x/180001 tag.root > 180001.xml | |
28 | ||
29 | 2) Merging the tag files | |
30 | ||
31 | TGrid::Connect("alien://"); | |
32 | TAlienCollection *collection = TAlienCollection::Open(xmlfile); | |
33 | TGridResult* result = collection->GetGridResult("",0); | |
34 | AliTagCreator *t = new AliTagCreator(); | |
35 | t->MergeTags("ESD",result); | |
36 | ||
37 | 3) Chain the merged tag files and test the event pool | |
38 | ||
39 | void testpool(const char * dirname = ".", const char * pattern = "Run180001") { | |
40 | ||
41 | gSystem->Load("libANALYSIS.so"); | |
42 | gSystem->Load("libANALYSISalice.so"); | |
43 | ||
44 | // Create a chain | |
45 | TChain * fChain = new TChain("T"); | |
46 | ||
47 | ||
48 | // Chain the tag files in the working directory | |
49 | TString fTagFilename; | |
50 | ||
51 | // Open the working directory | |
52 | void * dirp = gSystem->OpenDirectory(dirname); | |
53 | const char * name = 0x0; | |
54 | // Add all files matching *pattern* to the chain | |
55 | while((name = gSystem->GetDirEntry(dirp))) { | |
56 | cout << name << endl; | |
57 | if (strstr(name,pattern)) { | |
58 | fTagFilename = dirname; | |
59 | fTagFilename += "/"; | |
60 | fTagFilename += name; | |
61 | ||
62 | fChain->Add(fTagFilename); | |
63 | }//pattern check | |
64 | }//directory loop | |
65 | ||
66 | ||
67 | Int_t nruns = fChain->GetEntries(); | |
68 | ||
69 | cout << nruns << " run(s) found in the tag chain." << endl; | |
70 | ||
71 | Int_t dim = 3; | |
72 | const char * vars[] = {"fNumberOfPositiveTracks","fNumberOfNegativeTracks","fPrimaryVertexZ"}; | |
73 | Int_t nbins[] = {10,10,10}; | |
74 | Double_t xmin[] ={-0.5,-0.5,-20}; | |
75 | Double_t xmax[] ={49/5,49.5,20}; | |
76 | Int_t chunksize = 100; | |
77 | ||
78 | AliEventPoolSparse * pool = | |
79 | new AliEventPoolSparse("test", "test", fChain, dim, vars, nbins, xmin, xmax, chunksize); | |
80 | ||
81 | pool->Init(); | |
82 | ||
83 | TChain * esdchain = 0x0; | |
84 | Int_t ichain = 0; | |
85 | while (esdchain=pool->GetNextChain()) { | |
86 | cout << "Chain: "<< ichain <<" Events: " << esdchain->GetEntries() << endl; | |
87 | ichain++; | |
88 | } | |
89 | ||
90 | delete fChain; | |
91 | ||
92 | } | |
93 | ||
94 | */ | |
95 | ||
96 | #include "AliEventPoolSparse.h" | |
97 | #include "AliRunTag.h" | |
98 | #include "AliEventTag.h" | |
99 | #include "AliLog.h" | |
100 | ||
101 | #include <TObjArray.h> | |
102 | #include <TAxis.h> | |
103 | #include <TTreeFormula.h> | |
104 | #include <TChain.h> | |
105 | #include <TFile.h> | |
106 | #include <Riostream.h> | |
107 | #include <cstring> | |
108 | ||
109 | ClassImp(AliEventPoolSparse) | |
110 | ||
111 | // _________________________________________________________________________ | |
112 | AliEventPoolSparse::AliEventPoolSparse() : | |
113 | fHnSparseI(), | |
114 | fChunkSize(1024 * 16), | |
115 | fN(0), | |
116 | fPool(0x0), | |
117 | fCurrentBin(-1), | |
118 | fTagChain(0x0), | |
119 | fVars(0x0), | |
120 | fRunCut(0x0), | |
121 | fLHCCut(0x0), | |
122 | fDetCut(0x0), | |
123 | fEvCut(0x0){ | |
124 | // Default constructor. Initializes the THnSparseI, | |
125 | // the initial size of the array and the array itself | |
126 | fN = fChunkSize; | |
127 | fPool = new TEntryList * [fN]; | |
128 | memset(fPool,0x0,fN*sizeof(TEntryList*)); | |
129 | } | |
130 | ||
131 | // _________________________________________________________________________ | |
132 | AliEventPoolSparse::AliEventPoolSparse(const char* name, const char* title, TChain * tagchain, Int_t dim, | |
133 | const char ** vars, const Int_t* nbins, const Double_t* xmin, | |
134 | const Double_t* xmax, Int_t chunksize): | |
135 | fHnSparseI(name, title, dim, nbins, xmin, xmax, chunksize), | |
136 | fChunkSize(chunksize), | |
137 | fN(0), | |
138 | fPool(0x0), | |
139 | fCurrentBin(-1), | |
140 | fTagChain(tagchain), | |
141 | fVars(0x0), | |
142 | fRunCut(0x0), | |
143 | fLHCCut(0x0), | |
144 | fDetCut(0x0), | |
145 | fEvCut(0x0){ | |
146 | // Constructor. Initializes the THnSparseI, | |
147 | // the initial size of the pool array and the array itself | |
148 | // It uses the provided array of variables to create TTreeFormulas | |
149 | // that are used when the pools are filled. This is the reason to require the input | |
150 | // tag chain in the constructor. | |
151 | ||
152 | fN = fChunkSize; | |
153 | fPool = new TEntryList * [fN]; | |
154 | memset(fPool,0x0,fN*sizeof(TArrayI*)); | |
155 | ||
156 | // Pool variables | |
157 | fVars = new TTreeFormula*[dim]; | |
158 | ||
159 | for (Int_t ivar=0; ivar<dim; ++ivar) { | |
160 | fVars[ivar] = new TTreeFormula(vars[ivar],vars[ivar],fTagChain); | |
161 | } | |
162 | ||
163 | ||
164 | } | |
165 | ||
166 | // _________________________________________________________________________ | |
167 | AliEventPoolSparse::~AliEventPoolSparse() { | |
168 | // Destructor. Delete the pool, the array of TTreeFormula | |
169 | // and the pointers to cuts | |
170 | for (Int_t i=0; i<fN; ++i) delete fPool[i]; | |
171 | if (fN>0) delete [] fPool; | |
172 | ||
173 | Int_t ndim = fHnSparseI.GetNdimensions(); | |
174 | for (Int_t i=0; i<ndim; ++i) delete fVars[i]; | |
175 | delete [] fVars; | |
176 | ||
177 | delete fRunCut; | |
178 | delete fLHCCut; | |
179 | delete fDetCut; | |
180 | delete fEvCut; | |
181 | } | |
182 | ||
183 | ||
184 | // Implementation of the interface functions | |
185 | // _________________________________________________________________________ | |
186 | TChain* AliEventPoolSparse::GetNextChain(){ | |
187 | // Return the chains one by one. The output is 0x0 if the pool is not initialized | |
188 | // or the last chain is already reached | |
189 | if (fCurrentBin<0) { | |
190 | AliError("The event pool is not initialized"); | |
191 | return 0x0; | |
192 | } | |
193 | ||
194 | if (fCurrentBin>=fHnSparseI.GetNbins()) { // Check if >= or > | |
195 | AliInfo("No more chains"); | |
196 | return 0x0; | |
197 | } | |
198 | ||
199 | fChain->SetEntryList(fPool[fCurrentBin++],"ne"); | |
200 | return fChain; | |
201 | } | |
202 | ||
203 | // _________________________________________________________________________ | |
204 | void AliEventPoolSparse::GetCurrentBin(Float_t* xbin) { | |
205 | // This method fills the center of the current bin in xbin | |
206 | ||
207 | if (fCurrentBin<0) { | |
208 | AliError("The event pool is not initialized"); | |
209 | return; | |
210 | } | |
211 | ||
212 | Int_t ndim = fHnSparseI.GetNdimensions(); | |
213 | Int_t * coord = new Int_t[ndim]; | |
214 | fHnSparseI.GetBinContent(fCurrentBin,coord); | |
215 | ||
216 | TObjArray * axes = fHnSparseI.GetListOfAxes(); | |
217 | for (Int_t i=0; i<ndim; ++i) | |
218 | xbin[i]=((TAxis*)axes->At(i+1))->GetBinCenter(coord[i]); | |
219 | ||
220 | delete [] coord; | |
221 | } | |
222 | ||
223 | // _________________________________________________________________________ | |
224 | void AliEventPoolSparse::Init(){ | |
225 | // Loop on the tag chain and select the events according | |
226 | // to the Run, LHC, detector, and event cuts. | |
227 | // Fill the THnSparse bin and add the event to the corresponding pool | |
228 | // Taken and modified from AliAnalysisTag | |
229 | ||
230 | if (!fTagChain) { | |
231 | AliError("Please provide a tag chain!"); | |
232 | return; | |
233 | } | |
234 | ||
235 | Int_t ndim = fHnSparseI.GetNdimensions(); | |
236 | if (ndim<=0) return; | |
237 | ||
238 | Double_t * x = new Double_t[ndim]; | |
239 | ||
240 | // Tag objects. | |
241 | AliRunTag *tag = new AliRunTag; | |
242 | AliEventTag *evTag = new AliEventTag; | |
243 | fTagChain->SetBranchAddress("AliTAG",&tag); | |
244 | ||
245 | TString guid(""); | |
246 | TString turl(""); | |
247 | TString path(""); | |
248 | ||
249 | Int_t current = -1; // Current tree number | |
250 | for(Int_t iTagFiles = 0; iTagFiles < fTagChain->GetEntries(); iTagFiles++) { | |
251 | fTagChain->GetEntry(iTagFiles); | |
252 | ||
253 | if (current != fTagChain->GetTreeNumber()) { | |
254 | // Update the formula leaves if a new file is processed by the chain | |
255 | if (fRunCut) fRunCut->UpdateFormulaLeaves(); | |
256 | if (fLHCCut) fLHCCut->UpdateFormulaLeaves(); | |
257 | if (fDetCut) fDetCut->UpdateFormulaLeaves(); | |
258 | if (fEvCut) fEvCut->UpdateFormulaLeaves(); | |
259 | ||
260 | for (Int_t ivar=0; ivar<fHnSparseI.GetNdimensions(); ++ivar) | |
261 | if (fVars[ivar]) fVars[ivar]->UpdateFormulaLeaves(); | |
262 | ||
263 | // Create the ESD/AOD chain if not done | |
264 | if (!fChain) { | |
265 | // Decide if we have ESD or AOD | |
266 | TFile * tagfile = fTagChain->GetFile(); | |
267 | if (strstr(tagfile->GetName(),"ESD")) fChain = new TChain("esdTree"); | |
268 | else if (strstr(tagfile->GetName(),"AOD")) fChain = new TChain("aodTree"); | |
269 | else { | |
270 | AliError("Only ESD and AOD type is implemented!!!"); | |
271 | delete [] x; | |
272 | return; | |
273 | } | |
274 | } | |
275 | ||
276 | // Update the tree number | |
277 | current = fTagChain->GetTreeNumber(); | |
278 | } | |
279 | ||
280 | // Apply Run, LHC, and detector cuts if they exist | |
281 | if(!fRunCut || fRunCut->EvalInstance(iTagFiles) == 1) { | |
282 | if(!fLHCCut || fLHCCut->EvalInstance(iTagFiles) == 1) { | |
283 | if(!fDetCut || fDetCut->EvalInstance(iTagFiles) == 1) { | |
284 | ||
285 | ||
286 | // Get access to the event data in the TTreeFormula | |
287 | if (fEvCut) fEvCut->GetNdata(); | |
288 | for (Int_t ivar=0; ivar<fHnSparseI.GetNdimensions(); ++ivar) | |
289 | if (fVars[ivar]) fVars[ivar]->GetNdata(); | |
290 | ||
291 | // Loop on events | |
292 | const TClonesArray *tagList = tag->GetEventTags(); | |
293 | Int_t iEvents = tagList->GetEntries(); | |
294 | for(Int_t i = 0; i < iEvents; i++) { | |
295 | evTag = (AliEventTag *) tagList->At(i); | |
296 | ||
297 | guid = evTag->GetGUID(); | |
298 | turl = evTag->GetTURL(); | |
299 | path = evTag->GetPath(); | |
300 | ||
301 | ||
302 | if(!fEvCut || fEvCut->EvalInstance(i) == 1) { | |
303 | TEntryList *fLocalList = new TEntryList(); | |
304 | fLocalList->SetTreeName(fChain->GetName()); | |
305 | fLocalList->SetFileName(turl.Data()); | |
306 | fLocalList->Enter(i); | |
307 | ||
308 | ||
309 | // Add this event to the corresponding pool | |
310 | { | |
311 | // Increment the bin content corrresponding to the vector "x" by "w", | |
312 | // and store the event index iev to the array associated with the bin, | |
313 | // then return the bin index. | |
314 | ||
315 | for (Int_t ivar=0; ivar<ndim; ++ivar) x[ivar] = fVars[ivar]->EvalInstance(i); | |
316 | ||
317 | Int_t bin = fHnSparseI.Fill(x); | |
318 | // Check if we have to enlarge the array of pointers | |
319 | if (bin>=fN) Set(bin+fChunkSize); | |
320 | // Allocate the TEntryList if this is the first use of it | |
321 | if (!fPool[bin]) fPool[bin] = new TEntryList(); | |
322 | // Add the event iev to the corresponding bin | |
323 | fPool[bin]->Add(fLocalList); | |
324 | } | |
325 | } | |
326 | }//event loop | |
327 | ||
328 | for (Int_t ipool=0; ipool<fHnSparseI.GetNbins(); ++ipool) | |
329 | fPool[ipool]->OptimizeStorage(); | |
330 | ||
331 | // Add the current file to the ESD/AOD chain | |
332 | if(!path.IsNull()) fChain->AddFile(path); | |
333 | else if(!turl.IsNull()) fChain->AddFile(turl); | |
334 | ||
335 | }//detector tag cuts | |
336 | }//lhc tag cuts | |
337 | }//run tag cut | |
338 | }//tag file loop | |
339 | ||
340 | delete [] x; | |
341 | fCurrentBin = 0; // Initialize the current bin | |
342 | } | |
343 | ||
344 | // _________________________________________________________________________ | |
345 | void AliEventPoolSparse::SetRunCut(const char * cut){ | |
346 | // Run selection cuts | |
347 | if (fRunCut) delete fRunCut; | |
348 | fRunCut = new TTreeFormula("fRun",cut,fTagChain); | |
349 | } | |
350 | ||
351 | // _________________________________________________________________________ | |
352 | void AliEventPoolSparse::SetLHCCut(const char * cut){ | |
353 | // LHC selection cuts | |
354 | if (fLHCCut) delete fLHCCut; | |
355 | fLHCCut = new TTreeFormula("fLHC",cut,fTagChain); | |
356 | } | |
357 | ||
358 | // _________________________________________________________________________ | |
359 | void AliEventPoolSparse::SetDetCut(const char * cut){ | |
360 | // Detector selection cuts | |
361 | if (fDetCut) delete fDetCut; | |
362 | fDetCut = new TTreeFormula("fDet",cut,fTagChain); | |
363 | } | |
364 | ||
365 | // _________________________________________________________________________ | |
366 | void AliEventPoolSparse::SetEventCut(const char * cut){ | |
367 | // Event selection cuts | |
368 | if (fEvCut) delete fEvCut; | |
369 | fEvCut = new TTreeFormula("fEv",cut,fTagChain); | |
370 | } | |
371 | ||
372 | // _________________________________________________________________________ | |
373 | void AliEventPoolSparse::Set(Int_t n){ | |
374 | // Set size of the array of pointers to n. | |
375 | // A new array is created, the old contents copied to the new array, | |
376 | // then the old array is deleted. | |
377 | // This function is taken from TArrayI | |
378 | ||
379 | if (n < 0) return; | |
380 | if (n != fN) { | |
381 | TEntryList **temp = fPool; | |
382 | if (n != 0) { | |
383 | fPool = new TEntryList*[n]; | |
384 | if (n < fN) memcpy(fPool,temp, n*sizeof(TEntryList*)); | |
385 | else { | |
386 | memcpy(fPool,temp,fN*sizeof(TEntryList*)); | |
387 | memset(&fPool[fN],0x0,(n-fN)*sizeof(TEntryList*)); | |
388 | } | |
389 | } else { | |
390 | fPool = 0x0; | |
391 | } | |
392 | if (fN) delete [] temp; | |
393 | fN = n; | |
394 | } | |
395 | } |