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5a5a1232 | 1 | // $Header$ |
2 | ||
3 | #include "EventAlieve.h" | |
4 | #include <Reve/Reve.h> | |
32e219c2 | 5 | #include <Reve/ReveManager.h> |
5a5a1232 | 6 | |
7 | #include <AliRunLoader.h> | |
93845f6c | 8 | #include <AliRun.h> |
af885e0f | 9 | #include <AliESDEvent.h> |
3aecaefc | 10 | #include <AliESDfriend.h> |
93845f6c | 11 | #include <AliMagFMaps.h> |
632d2b03 | 12 | #include <AliCDBManager.h> |
13 | #include <AliHeader.h> | |
14 | #include <AliGeomManager.h> | |
5a5a1232 | 15 | |
16 | #include <TFile.h> | |
17 | #include <TTree.h> | |
632d2b03 | 18 | #include <TError.h> |
5a5a1232 | 19 | |
20 | #include <TROOT.h> | |
21 | #include <TSystem.h> | |
22 | ||
23 | using namespace Reve; | |
24 | using namespace Alieve; | |
25 | ||
26 | //______________________________________________________________________ | |
27 | // Event | |
28 | // | |
4852ff6f | 29 | // Provide interface for loading and navigating standard AliRoot data |
30 | // (AliRunLoader) and ESDs. | |
31 | // | |
32 | // Missing support for raw-data. For now this is handled individually | |
33 | // by each sub-detector. | |
34 | // | |
5a5a1232 | 35 | |
36 | ClassImp(Event) | |
37 | ||
38 | Event* Alieve::gEvent = 0; | |
39 | ||
a1896a82 | 40 | Bool_t Alieve::Event::fgAssertRunLoader = kFALSE; |
41 | Bool_t Alieve::Event::fgAssertESDTree = kFALSE; | |
5a5a1232 | 42 | |
632d2b03 | 43 | TString Alieve::Event::fgCdbUri("local://$ALICE_ROOT"); |
44 | ||
93845f6c | 45 | AliMagF* Alieve::Event::fgMagField = 0; |
46 | ||
47 | ||
6f0b0040 | 48 | Event::Event() : |
265ecb21 | 49 | EventBase(), |
50 | ||
51 | fPath (), fEventId (0), | |
52 | fRunLoader (0), | |
90fa773e | 53 | fESDFile (0), fESDTree (0), fESD (0), |
32e219c2 | 54 | fESDfriend (0), fESDfriendExists(kFALSE) |
265ecb21 | 55 | {} |
5a5a1232 | 56 | |
6f0b0040 | 57 | Event::Event(TString path, Int_t ev) : |
58 | EventBase("AliEVE Event"), | |
265ecb21 | 59 | |
90fa773e | 60 | fPath (path), fEventId(-1), |
265ecb21 | 61 | fRunLoader (0), |
90fa773e | 62 | fESDFile (0), fESDTree (0), fESD (0), |
32e219c2 | 63 | fESDfriend (0), fESDfriendExists(kFALSE) |
5a5a1232 | 64 | { |
5a5a1232 | 65 | Open(); |
90fa773e | 66 | if (ev >= 0) GotoEvent(ev); |
5a5a1232 | 67 | } |
68 | ||
69 | /**************************************************************************/ | |
70 | ||
71 | void Event::Open() | |
72 | { | |
73 | static const Exc_t eH("Event::Open "); | |
74 | ||
75 | gSystem->ExpandPathName(fPath); | |
76 | if(fPath[0] != '/') | |
77 | fPath = Form("%s/%s", gSystem->WorkingDirectory(), fPath.Data()); | |
78 | ||
632d2b03 | 79 | Int_t runNo = -1; |
80 | ||
a1896a82 | 81 | TString ga_path(Form("%s/galice.root", fPath.Data())); |
82 | if(gSystem->AccessPathName(ga_path, kReadPermission) == kFALSE) | |
90fa773e | 83 | { |
5a5a1232 | 84 | fRunLoader = AliRunLoader::Open(ga_path); |
a1896a82 | 85 | if (fRunLoader) |
5a5a1232 | 86 | { |
87 | TString alice_path = fPath + "/"; | |
88 | fRunLoader->SetDirName(alice_path); | |
a1896a82 | 89 | |
90 | if (fRunLoader->LoadgAlice() != 0) | |
91 | Warning(eH, "failed loading gAlice via run-loader."); | |
92 | ||
93 | if (fRunLoader->LoadHeader() == 0) | |
94 | { | |
95 | runNo = fRunLoader->GetHeader()->GetRun(); | |
96 | } | |
97 | else | |
98 | { | |
99 | Warning(eH, "failed loading run-loader's header."); | |
100 | delete fRunLoader; | |
101 | fRunLoader = 0; | |
102 | } | |
103 | } | |
104 | else // run-loader open failed | |
105 | { | |
106 | Warning(eH, "failed opening ALICE run-loader from '%s'.", ga_path.Data()); | |
5a5a1232 | 107 | } |
5a5a1232 | 108 | } |
a1896a82 | 109 | else // galice not readable |
110 | { | |
111 | Warning(eH, "can not read '%s'.", ga_path.Data()); | |
112 | } | |
113 | if (fRunLoader == 0) | |
114 | { | |
115 | if(fgAssertRunLoader) | |
116 | throw(eH + "Bootstraping of run-loader failed. Its precence was requested."); | |
117 | else | |
118 | Warning(eH, "Bootstraping of run-loader failed."); | |
119 | } | |
120 | ||
5a5a1232 | 121 | |
a1896a82 | 122 | TString esd_path(Form("%s/AliESDs.root", fPath.Data())); |
123 | if(gSystem->AccessPathName(esd_path, kReadPermission) == kFALSE) | |
90fa773e | 124 | { |
a1896a82 | 125 | fESDFile = new TFile(esd_path); |
126 | if(fESDFile->IsZombie() == kFALSE) | |
90fa773e | 127 | { |
af885e0f | 128 | fESD = new AliESDEvent(); |
a1896a82 | 129 | fESDTree = (TTree*) fESDFile->Get("esdTree"); |
130 | if (fESDTree != 0) | |
131 | { | |
132 | fESD->ReadFromTree(fESDTree); | |
133 | runNo = fESD->GetESDRun()->GetRunNumber(); | |
134 | ||
135 | // Check if ESDfriends exists and attach the branch | |
136 | TString p = Form("%s/AliESDfriends.root", fPath.Data()); | |
137 | if(gSystem->AccessPathName(p, kReadPermission) == kFALSE) | |
138 | { | |
139 | fESDfriendExists = kTRUE; | |
140 | fESDTree->SetBranchStatus ("ESDfriend*", 1); | |
141 | fESDTree->SetBranchAddress("ESDfriend.", &fESDfriend); | |
142 | } | |
143 | } | |
144 | else // esdtree == 0 | |
145 | { | |
146 | delete fESDFile; fESDFile = 0; | |
147 | Warning(eH, "failed getting the esdTree."); | |
753fdd1e | 148 | } |
149 | } | |
a1896a82 | 150 | else // esd tfile is zombie |
151 | { | |
5a5a1232 | 152 | delete fESDFile; fESDFile = 0; |
a1896a82 | 153 | Warning(eH, "failed opening ESD from '%s'.", esd_path.Data()); |
5a5a1232 | 154 | } |
a1896a82 | 155 | } |
156 | else // esd not readable | |
157 | { | |
158 | Warning(eH, "can not read ESD file '%s'.", esd_path.Data()); | |
159 | } | |
160 | if (fESDTree == 0) | |
161 | { | |
162 | if (fgAssertESDTree) | |
90fa773e | 163 | { |
a1896a82 | 164 | throw(eH + "ESD not initialized. Its precence was requested."); |
165 | } else { | |
166 | Warning(eH, "ESD not initialized."); | |
3aecaefc | 167 | } |
5a5a1232 | 168 | } |
169 | ||
632d2b03 | 170 | if (runNo < 0) |
171 | throw(eH + "invalid run number."); | |
172 | ||
173 | { | |
174 | AliCDBManager* cdb = AliCDBManager::Instance(); | |
175 | cdb->SetDefaultStorage(fgCdbUri); | |
176 | if (cdb->IsDefaultStorageSet() == kFALSE) | |
177 | throw(eH + "CDB initialization failed."); | |
178 | cdb->SetRun(runNo); | |
179 | } | |
180 | ||
1eaa5849 | 181 | SetName(Form("Event %d", fEventId)); |
5a5a1232 | 182 | SetTitle(fPath); |
183 | } | |
184 | ||
1eaa5849 | 185 | void Event::GotoEvent(Int_t event) |
186 | { | |
187 | static const Exc_t eH("Event::GotoEvent "); | |
188 | ||
1eaa5849 | 189 | Int_t maxEvent = 0; |
753fdd1e | 190 | if(fRunLoader) |
1eaa5849 | 191 | maxEvent = fRunLoader->GetNumberOfEvents() - 1; |
753fdd1e | 192 | else if(fESDTree) |
1eaa5849 | 193 | maxEvent = fESDTree->GetEntries() - 1; |
753fdd1e | 194 | else |
195 | throw(eH + "neither RunLoader nor ESD loaded."); | |
1eaa5849 | 196 | |
197 | if(event < 0 || event > maxEvent) | |
198 | throw(eH + Form("event %d not present, available range [%d, %d].", | |
199 | event, 0, maxEvent)); | |
200 | ||
32e219c2 | 201 | ReveManager::RedrawDisabler rd(gReve); |
541e09b4 | 202 | gReve->Redraw3D(kFALSE, kTRUE); // Enforce drop of all logicals. |
d9e0d6c5 | 203 | |
32e219c2 | 204 | // !!! MT this is somewhat brutal; at least optionally, one could be |
205 | // a bit gentler, checking for objs owning their external refs and having | |
206 | // additinal parents. | |
1eaa5849 | 207 | DestroyElements(); |
208 | fEventId = event; | |
209 | SetName(Form("Event %d", fEventId)); | |
210 | UpdateItems(); | |
211 | ||
753fdd1e | 212 | if(fRunLoader) { |
1eaa5849 | 213 | if(fRunLoader->GetEvent(fEventId) != 0) |
214 | throw(eH + "failed getting required event."); | |
215 | } | |
216 | ||
753fdd1e | 217 | if(fESDTree) { |
1eaa5849 | 218 | if(fESDTree->GetEntry(fEventId) <= 0) |
219 | throw(eH + "failed getting required event from ESD."); | |
220 | ||
2cea771a | 221 | if (fESDfriendExists) |
1eaa5849 | 222 | fESD->SetESDfriend(fESDfriend); |
1eaa5849 | 223 | } |
90fa773e | 224 | |
225 | AfterNewEventLoaded(); | |
1eaa5849 | 226 | } |
227 | ||
5a5a1232 | 228 | void Event::Close() |
229 | { | |
2cea771a | 230 | if (fESDTree) { |
231 | delete fESD; fESD = 0; | |
232 | delete fESDfriend; fESDfriend = 0; | |
233 | ||
234 | delete fESDTree; fESDTree = 0; | |
235 | delete fESDFile; fESDFile = 0; | |
236 | } | |
5a5a1232 | 237 | } |
238 | ||
90fa773e | 239 | |
5a5a1232 | 240 | /**************************************************************************/ |
241 | /**************************************************************************/ | |
242 | ||
243 | // Static convenience functions. | |
244 | ||
245 | AliRunLoader* Event::AssertRunLoader() | |
246 | { | |
247 | static const Exc_t eH("Event::AssertRunLoader "); | |
248 | ||
249 | if(gEvent == 0) | |
250 | throw(eH + "ALICE event not ready."); | |
251 | if(gEvent->fRunLoader == 0) | |
252 | throw(eH + "AliRunLoader not initialised."); | |
253 | return gEvent->fRunLoader; | |
254 | } | |
255 | ||
af885e0f | 256 | AliESDEvent* Event::AssertESD() |
5a5a1232 | 257 | { |
258 | static const Exc_t eH("Event::AssertESD "); | |
259 | ||
260 | if(gEvent == 0) | |
261 | throw(eH + "ALICE event not ready."); | |
262 | if(gEvent->fESD == 0) | |
263 | throw(eH + "AliESD not initialised."); | |
264 | return gEvent->fESD; | |
265 | } | |
3aecaefc | 266 | |
267 | AliESDfriend* Event::AssertESDfriend() | |
268 | { | |
269 | static const Exc_t eH("Event::AssertESDfriend "); | |
270 | ||
271 | if(gEvent == 0) | |
272 | throw(eH + "ALICE event not ready."); | |
273 | if(gEvent->fESDfriend == 0) | |
274 | throw(eH + "AliESDfriend not initialised."); | |
275 | return gEvent->fESDfriend; | |
276 | } | |
93845f6c | 277 | |
278 | AliMagF* Event::AssertMagField() | |
279 | { | |
280 | if (fgMagField == 0) | |
281 | { | |
282 | if (gEvent && gEvent->fRunLoader && gEvent->fRunLoader->GetAliRun()) | |
283 | fgMagField = gEvent->fRunLoader->GetAliRun()->Field(); | |
284 | else | |
285 | fgMagField = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG); | |
286 | } | |
287 | return fgMagField; | |
288 | } | |
632d2b03 | 289 | |
290 | TGeoManager* Event::AssertGeometry() | |
291 | { | |
292 | static const Exc_t eH("Event::AssertGeometry "); | |
293 | ||
294 | if (AliGeomManager::GetGeometry() == 0) | |
295 | { | |
af2e4ef5 | 296 | gGeoManager = 0; |
632d2b03 | 297 | AliGeomManager::LoadGeometry(); |
298 | if ( ! AliGeomManager::GetGeometry()) | |
299 | { | |
300 | throw(eH + "can not load geometry."); | |
301 | } | |
302 | if ( ! AliGeomManager::ApplyAlignObjsFromCDB("ITS TPC TRD TOF PHOS HMPID EMCAL MUON FMD ZDC PMD T0 VZERO ACORDE")) | |
303 | { | |
304 | ::Warning(eH, "mismatch of alignable volumes. Proceeding."); | |
305 | // throw(eH + "could not apply align objs."); | |
306 | } | |
307 | } | |
308 | ||
309 | return AliGeomManager::GetGeometry(); | |
310 | } |