]>
Commit | Line | Data |
---|---|---|
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 | // marian.ivanov@cern.ch | |
20 | // | |
21 | // ------------------------------------------------------------------------------------------------ | |
22 | // TTreeStream | |
23 | // Standard stream (cout) like input for the tree | |
24 | // Run and see TTreeStreamer::Test() - to see TTreeStreamer functionality | |
25 | // ------------------------------------------------------------------------------------------------ | |
26 | // | |
27 | // ------------------------------------------------------------------------------------------------- | |
28 | // TTreeSRedirector | |
29 | // Redirect file to different TTreeStreams | |
30 | // Run and see TTreeSRedirector::Test() as an example of TTreeSRedirectorer functionality | |
31 | // | |
32 | ||
33 | #include <TClass.h> | |
34 | #include <TFile.h> | |
35 | #include <TDirectory.h> | |
36 | #include <TObjArray.h> | |
37 | #include <TTree.h> | |
38 | #include <TTreeStream.h> | |
39 | ||
40 | ClassImp(TTreeDataElement) | |
41 | ClassImp(TTreeStream) | |
42 | ClassImp(TTreeSRedirector) | |
43 | ||
44 | ||
45 | ||
46 | void TTreeStream::Test() | |
47 | { | |
48 | // | |
49 | // | |
50 | TFile *ftest = new TFile("teststreamer.root","recreate"); | |
51 | if (!ftest) ftest = new TFile("teststreamer.root","new"); | |
52 | // | |
53 | //create to streems Tree1 and Tree2 | |
54 | TTreeStream stream1("Tree1"); | |
55 | TTreeStream stream2("Tree2"); | |
56 | // | |
57 | Char_t ch='s'; | |
58 | Float_t f=3.; | |
59 | Float_t f2=1; | |
60 | TObject *po = new TObject; | |
61 | TObject *po2 = new TObject; | |
62 | for (Int_t i=0;i<100000;i++) { | |
63 | f=i*100; | |
64 | po->SetUniqueID(i); | |
65 | po2->SetUniqueID(i*100); | |
66 | ch=i%120; | |
67 | // | |
68 | // Stream the data | |
69 | // The data layout of stream is defined during first invocation of streamer. | |
70 | // Endl is the trigger which define the end of structure. | |
71 | // | |
72 | // The name of branch can be specified using strings with = at the the end | |
73 | // if string is not specified automatic convention is u (sed B0, B1, ...Bn) | |
74 | stream1<<"i="<<i<<"ch="<<ch<<"f="<<f<<"po="<<po<<"\n"; | |
75 | f = 1./(100.1+i); | |
76 | f2 = -f; | |
77 | //3.) just another example - we can fill the same tree with different objects | |
78 | // | |
79 | stream2<<f<<po<<"\n"; | |
80 | stream2<<f2<<po2<<"\n"; | |
81 | } | |
82 | // | |
83 | //4.) Close the streeamers (Write the streamed tree's to the file) and close the corresponding file. | |
84 | // | |
85 | stream1.Close(); | |
86 | stream2.Close(); | |
87 | ftest->Close(); | |
88 | delete ftest; | |
89 | // | |
90 | //5.) and now see results in file tteststreamer.root | |
91 | } | |
92 | ||
93 | ||
94 | ||
95 | void TTreeSRedirector::Test() | |
96 | { | |
97 | // | |
98 | //Example test function to show functionality of TTreeSRedirector | |
99 | // | |
100 | // | |
101 | //1.)create the redirector associated with file (testredirector.root) | |
102 | // | |
103 | // | |
104 | TTreeSRedirector *pmistream= new TTreeSRedirector("testredirector.root"); | |
105 | TTreeSRedirector &mistream = *pmistream; | |
106 | Char_t ch='s'; | |
107 | Float_t f=3.; | |
108 | Float_t f2=1; | |
109 | TObject *po = new TObject; | |
110 | TObject *po2 = new TObject; | |
111 | for (Int_t i=0;i<100000;i++) { | |
112 | f=i*100; | |
113 | po->SetUniqueID(i); | |
114 | po2->SetUniqueID(i*100); | |
115 | ch=i%120; | |
116 | // | |
117 | //2.) create the tree with identifier specified by first argument | |
118 | // layout specified by sequence of arguments | |
119 | // Tree identifier has to be specified as first argument !!! | |
120 | // if the tree and layout was already defined the consistency if layout is checked | |
121 | // if the data are consisten fill given tree | |
122 | // the name of branch can be specified using strings with = at the the end | |
123 | // if string is not specified use automatic convention B0, B1, ...Bn | |
124 | mistream<<"TreeIdentifier"<<"i="<<i<<"ch="<<ch<<"f="<<f<<"po="<<po<<"\n"; | |
125 | f = 1./(100.1+i); | |
126 | f2 = -f; | |
127 | ||
128 | //3.) just another example - we can fill the same tree with different objects | |
129 | // | |
130 | mistream<<"TreeK"<<f<<po<<"\n"; | |
131 | mistream<<"TreeK"<<f2<<po2<<"\n"; | |
132 | } | |
133 | // | |
134 | //4.) write the streamed tree's to the file and close the corresponding file in destructor | |
135 | // | |
136 | delete pmistream; | |
137 | // | |
138 | //5.) and now see results in file testredirector.root | |
139 | } | |
140 | ||
141 | ||
142 | TTreeSRedirector::TTreeSRedirector(const char *fname) : | |
143 | fFile(new TFile(fname,"recreate")), | |
144 | fDataLayouts(0) | |
145 | { | |
146 | // | |
147 | // Constructor | |
148 | // | |
149 | if (!fFile){ | |
150 | fFile = new TFile(fname,"new"); | |
151 | } | |
152 | } | |
153 | ||
154 | TTreeSRedirector::~TTreeSRedirector() | |
155 | { | |
156 | // | |
157 | // Destructor | |
158 | // | |
159 | Close(); //write the tree to the selected file | |
160 | fFile->Close(); | |
161 | delete fFile; | |
162 | } | |
163 | void TTreeSRedirector::StoreObject(TObject* object){ | |
164 | // | |
165 | // | |
166 | // | |
167 | TDirectory * backup = gDirectory; | |
168 | fFile->cd(); | |
169 | object->Write(); | |
170 | if (backup) backup->cd(); | |
171 | } | |
172 | ||
173 | ||
174 | ||
175 | TTreeStream & TTreeSRedirector::operator<<(Int_t id) | |
176 | { | |
177 | // | |
178 | // return reference to the data layout with given identifier | |
179 | // if not existing - creates new | |
180 | if (!fDataLayouts) fDataLayouts = new TObjArray(10000); | |
181 | TTreeStream *clayout=0; | |
182 | Int_t entries = fDataLayouts->GetEntriesFast(); | |
183 | for (Int_t i=0;i<entries;i++){ | |
184 | TTreeStream * layout = (TTreeStream*)fDataLayouts->At(i); | |
185 | if (!layout) continue; | |
186 | if (layout->fId==id) { | |
187 | clayout = layout; | |
188 | break; | |
189 | } | |
190 | } | |
191 | if (!clayout){ | |
192 | TDirectory * backup = gDirectory; | |
193 | fFile->cd(); | |
194 | char chname[100]; | |
195 | sprintf(chname,"Tree%d",id); | |
196 | clayout = new TTreeStream(chname); | |
197 | clayout->fId=id; | |
198 | fDataLayouts->AddAt(clayout,entries); | |
199 | if (backup) backup->cd(); | |
200 | } | |
201 | return *clayout; | |
202 | } | |
203 | ||
204 | ||
205 | TTreeStream & TTreeSRedirector::operator<<(const char* name) | |
206 | { | |
207 | // | |
208 | // return reference to the data layout with given identifier | |
209 | // if not existing - creates new | |
210 | if (!fDataLayouts) fDataLayouts = new TObjArray(10000); | |
211 | TTreeStream *clayout=(TTreeStream*)fDataLayouts->FindObject(name); | |
212 | Int_t entries = fDataLayouts->GetEntriesFast(); | |
213 | ||
214 | if (!clayout){ | |
215 | TDirectory * backup = gDirectory; | |
216 | fFile->cd(); | |
217 | clayout = new TTreeStream(name); | |
218 | clayout->fId=-1; | |
219 | clayout->SetName(name); | |
220 | fDataLayouts->AddAt(clayout,entries); | |
221 | if (backup) backup->cd(); | |
222 | } | |
223 | return *clayout; | |
224 | } | |
225 | ||
226 | ||
227 | ||
228 | ||
229 | void TTreeSRedirector::Close(){ | |
230 | // | |
231 | // | |
232 | TDirectory * backup = gDirectory; | |
233 | fFile->cd(); | |
234 | if (fDataLayouts){ | |
235 | Int_t entries = fDataLayouts->GetEntriesFast(); | |
236 | for (Int_t i=0;i<entries;i++){ | |
237 | TTreeStream * layout = (TTreeStream*)fDataLayouts->At(i); | |
238 | if (layout){ | |
239 | if (layout->fTree) layout->fTree->Write(layout->GetName()); | |
240 | } | |
241 | } | |
242 | delete fDataLayouts; | |
243 | fDataLayouts=0; | |
244 | } | |
245 | if (backup) backup->cd(); | |
246 | } | |
247 | ||
248 | ||
249 | ||
250 | //------------------------------------------------------------- | |
251 | TTreeDataElement:: TTreeDataElement(Char_t type) : | |
252 | TNamed(), | |
253 | fType(type), | |
254 | fDType(0), | |
255 | fClass(0), | |
256 | fPointer(0) | |
257 | { | |
258 | // | |
259 | // | |
260 | // | |
261 | } | |
262 | ||
263 | TTreeDataElement:: TTreeDataElement(TDataType* type) : | |
264 | TNamed(), | |
265 | fType(0), | |
266 | fDType(type), | |
267 | fClass(0), | |
268 | fPointer(0) | |
269 | { | |
270 | // | |
271 | // | |
272 | // | |
273 | } | |
274 | ||
275 | TTreeDataElement:: TTreeDataElement(TClass* cl) : | |
276 | TNamed(), | |
277 | fType(0), | |
278 | fDType(0), | |
279 | fClass(cl), | |
280 | fPointer(0) | |
281 | { | |
282 | // | |
283 | // | |
284 | // | |
285 | } | |
286 | ||
287 | //------------------------------------------------------------------- | |
288 | TTreeStream::TTreeStream(const char *treename): | |
289 | TNamed(treename,treename), | |
290 | fElements(0), | |
291 | fBranches(0), | |
292 | fTree(new TTree(treename, treename)), | |
293 | fCurrentIndex(0), | |
294 | fId(0), | |
295 | fNextName(), | |
296 | fNextNameCounter(), | |
297 | fStatus(0) | |
298 | { | |
299 | // | |
300 | // Standard ctor | |
301 | // | |
302 | } | |
303 | ||
304 | TTreeStream::~TTreeStream() | |
305 | { | |
306 | // | |
307 | // Class dtor | |
308 | // | |
309 | fElements->Delete(); | |
310 | fBranches->Clear(); | |
311 | delete fElements; | |
312 | delete fBranches; | |
313 | } | |
314 | ||
315 | void TTreeStream::Close() | |
316 | { | |
317 | // | |
318 | // Flush data to disk and close | |
319 | // | |
320 | fTree->Write(); | |
321 | } | |
322 | ||
323 | Int_t TTreeStream::CheckIn(Char_t type, void *pointer) | |
324 | { | |
325 | // | |
326 | // Insert object of given type | |
327 | // | |
328 | if (!fElements) fElements = new TObjArray(10000); | |
329 | if (fElements->GetSize()<=fCurrentIndex) fElements->Expand(fCurrentIndex*2); | |
330 | TTreeDataElement* element = (TTreeDataElement*)fElements->At(fCurrentIndex); | |
331 | if (!element) { | |
332 | element = new TTreeDataElement(type); | |
333 | // | |
334 | char name[1000]; | |
335 | if (fNextName.Length()>0){ | |
336 | if (fNextNameCounter==0){ | |
337 | sprintf(name,"%s",(const char*)fNextName); | |
338 | } | |
339 | if (fNextNameCounter>0){ | |
340 | sprintf(name,"%s%d",(const char*)fNextName,fNextNameCounter); | |
341 | } | |
342 | } | |
343 | else{ | |
344 | sprintf(name,"B%d.",fCurrentIndex); | |
345 | } | |
346 | element->SetName(name); | |
347 | // | |
348 | element->SetPointer(pointer); | |
349 | fElements->AddAt(element,fCurrentIndex); | |
350 | fCurrentIndex++; | |
351 | return 0; //new element added | |
352 | } | |
353 | if (element->GetType()!=type){ | |
354 | fStatus++; | |
355 | return 1; //mismatched data element | |
356 | } | |
357 | element->SetPointer(pointer); | |
358 | fCurrentIndex++; | |
359 | return 0; | |
360 | } | |
361 | ||
362 | Int_t TTreeStream::CheckIn(TObject *o){ | |
363 | // | |
364 | // Insert TObject | |
365 | // | |
366 | if (!o) return 0; | |
367 | if (!fElements) fElements = new TObjArray(1000); | |
368 | TTreeDataElement* element = (TTreeDataElement*)fElements->At(fCurrentIndex); | |
369 | if (!element) { | |
370 | element = new TTreeDataElement(o->IsA()); | |
371 | // | |
372 | char name[1000]; | |
373 | if (fNextName.Length()>0){ | |
374 | if (fNextNameCounter==0){ | |
375 | sprintf(name,"%s",(const char*)fNextName); | |
376 | } | |
377 | if (fNextNameCounter>0){ | |
378 | sprintf(name,"%s%d",(const char*)fNextName,fNextNameCounter); | |
379 | } | |
380 | } | |
381 | else{ | |
382 | sprintf(name,"B%d",fCurrentIndex); | |
383 | } | |
384 | element->SetName(name); | |
385 | ||
386 | element->SetPointer(o); | |
387 | fElements->AddAt(element,fCurrentIndex); | |
388 | fCurrentIndex++; | |
389 | return 0; //new element added | |
390 | } | |
391 | if (element->fClass!=o->IsA()){ | |
392 | fStatus++; | |
393 | return 1; //mismatched data element | |
394 | } | |
395 | element->SetPointer(o); | |
396 | fCurrentIndex++; | |
397 | return 0; | |
398 | } | |
399 | ||
400 | void TTreeStream::BuildTree(){ | |
401 | // | |
402 | // Build the Tree | |
403 | // | |
404 | if (fTree && fTree->GetEntries()>0) return; | |
405 | if (!fTree) fTree = new TTree(GetName(),GetName()); | |
406 | Int_t entries = fElements->GetEntriesFast(); | |
407 | fBranches = new TObjArray(entries); | |
408 | ||
409 | for (Int_t i=0;i<entries;i++){ | |
410 | // | |
411 | TTreeDataElement* element = (TTreeDataElement*)fElements->At(i); | |
412 | char bname1[1000]; | |
413 | if (element->GetName()[0]==0){ | |
414 | sprintf(bname1,"B%d",i); | |
415 | } | |
416 | else{ | |
417 | sprintf(bname1,element->GetName()); | |
418 | } | |
419 | if (element->fClass){ | |
420 | if (element->fClass->GetBaseClass("TClonesArray")){ | |
421 | TBranch * br = fTree->Branch(bname1,element->fClass->GetName(),&(element->fPointer)); | |
422 | fBranches->AddAt(br,i); | |
423 | }else | |
424 | { | |
425 | TBranch * br = fTree->Branch(bname1,element->fClass->GetName(),&(element->fPointer)); | |
426 | fBranches->AddAt(br,i); | |
427 | } | |
428 | } | |
429 | if (element->GetType()>0){ | |
430 | char bname2[1000]; | |
431 | sprintf(bname2,"B%d/%c",i,element->GetType()); | |
432 | TBranch * br = fTree->Branch(bname1,element->fPointer,bname2); | |
433 | fBranches->AddAt(br,i); | |
434 | } | |
435 | } | |
436 | } | |
437 | ||
438 | void TTreeStream::Fill(){ | |
439 | // | |
440 | // Fill the tree | |
441 | // | |
442 | if (fTree) { | |
443 | Int_t entries=fElements->GetEntriesFast(); | |
444 | if (entries>fTree->GetNbranches()) BuildTree(); | |
445 | for (Int_t i=0;i<entries;i++){ | |
446 | TTreeDataElement* el = (TTreeDataElement*)fElements->At(i); | |
447 | if (!el) continue; | |
448 | if (!el->GetType()) continue; | |
449 | TBranch * br = (TBranch*)fBranches->At(i); | |
450 | if (br &&el){ | |
451 | if (el->GetType()) br->SetAddress(el->fPointer); | |
452 | } | |
453 | } | |
454 | if (fStatus==0) fTree->Fill(); //fill only in case of non conflicts | |
455 | fStatus=0; | |
456 | } | |
457 | } | |
458 | ||
459 | TTreeStream & TTreeStream::Endl() | |
460 | { | |
461 | // | |
462 | // Perform pseudo endl operation | |
463 | // | |
464 | if (fTree->GetNbranches()==0) BuildTree(); | |
465 | Fill(); | |
466 | fStatus =0; | |
467 | fCurrentIndex=0; | |
468 | return *this; | |
469 | } | |
470 | ||
471 | ||
472 | TTreeStream &TTreeStream::operator<<(const Char_t *name) | |
473 | { | |
474 | // | |
475 | // Endl | |
476 | // | |
477 | if (name[0]=='\n'){ | |
478 | return Endl(); | |
479 | } | |
480 | // | |
481 | //if tree was already defined ignore | |
482 | if (fTree->GetEntries()>0) return *this; | |
483 | //check branch name if tree was not | |
484 | // | |
485 | Int_t last=0; | |
486 | for (last=0;;last++){ | |
487 | if (name[last]==0) break; | |
488 | } | |
489 | ||
490 | if (last>0&&name[last-1]=='='){ | |
491 | fNextName = name; | |
492 | fNextName[last-1]=0; | |
493 | fNextNameCounter=0; | |
494 | } | |
495 | return *this; | |
496 | } | |
497 |