2 //**************************************************************************
3 //* This file is property of and copyright by the ALICE HLT Project *
4 //* ALICE Experiment at CERN, All rights reserved. *
6 //* Primary Authors: Oystein Djuvsland *
7 //* for The ALICE HLT Project. *
9 //* Permission to use, copy, modify and distribute this software and its *
10 //* documentation strictly for non-commercial purposes is hereby granted *
11 //* without fee, provided that the above copyright notice appears in all *
12 //* copies and that both the copyright notice and this permission notice *
13 //* appear in the supporting documentation. The authors make no claims *
14 //* about the suitability of this software for any purpose. It is *
15 //* provided "as is" without express or implied warranty. *
16 //**************************************************************************
18 /// @file AliHLTTriggerBarrelGeomMultiplicity.cxx
19 /// @author Oystein Djuvsland
21 /// @brief HLT trigger component for charged particle multiplicity
22 /// within a geometrical acceptance in the central barrel.
24 // see header file for class documentation
26 // refer to README to build package
28 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
30 #include "AliHLTTriggerBarrelGeomMultiplicity.h"
31 #include "AliHLTTriggerDetectorGeom.h"
32 #include "AliHLTTriggerDecisionParameters.h"
33 #include "AliESDEvent.h"
34 #include "AliHLTTriggerDecision.h"
35 #include "AliHLTDomainEntry.h"
36 #include "AliHLTGlobalBarrelTrack.h"
37 #include "TObjArray.h"
38 #include "TObjString.h"
39 #include "TObjArray.h"
40 #include "AliCDBEntry.h"
41 #include "AliCDBManager.h"
43 #include "AliHLTTrigger.h"
45 /** ROOT macro for the implementation of ROOT specific class methods */
46 ClassImp(AliHLTTriggerBarrelGeomMultiplicity)
48 AliHLTTriggerBarrelGeomMultiplicity::AliHLTTriggerBarrelGeomMultiplicity()
53 , fTriggerDecisionPars(0)
57 // see header file for class documentation
59 // refer to README to build package
61 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
62 fDetectorArray = new TObjArray(1);
64 fDetectorArray = new TObjArray;
68 AliHLTTriggerBarrelGeomMultiplicity::~AliHLTTriggerBarrelGeomMultiplicity()
70 // see header file for class documentation
73 const char* AliHLTTriggerBarrelGeomMultiplicity::GetTriggerName() const
75 // see header file for class documentation
77 return "BarrelGeomMultiplicityTrigger";
80 AliHLTComponent* AliHLTTriggerBarrelGeomMultiplicity::Spawn()
82 // see header file for class documentation
83 return new AliHLTTriggerBarrelGeomMultiplicity;
86 int AliHLTTriggerBarrelGeomMultiplicity::Reconfigure(const char *cdbEntry, const char *chainId)
88 // see header file for class documentation
90 // configure from the specified entry or the default
91 const char* entry=cdbEntry;
95 HLTDebug("No CDB path specified");
99 return GetDetectorGeomsFromCDBObject(entry, chainId);
102 int AliHLTTriggerBarrelGeomMultiplicity::DoTrigger()
104 // see header file for class documentation
106 int numberOfTracks=-1;
108 if (!fTriggerDecisionPars) {
112 // try the ESD as input
113 const TObject* obj = GetFirstInputObject(kAliHLTAllDataTypes, "AliESDEvent");
114 n AliESDEvent* esd = dynamic_cast<AliESDEvent*>(const_cast<TObject*>(obj));
120 esd->GetStdContent();
121 for (Int_t i = 0; i < esd->GetNumberOfTracks(); i++)
123 if (CheckCondition(esd->GetTrack(i), esd->GetMagneticField())) numberOfTracks++;
127 // try the AliHLTExternal track data as input
128 if (iResult>=0 && numberOfTracks<0)
130 for (const AliHLTComponentBlockData* pBlock=GetFirstInputBlock(kAliHLTDataTypeTrack);
131 pBlock!=NULL; pBlock=GetNextInputBlock())
133 if (numberOfTracks<0) numberOfTracks=0;
134 vector<AliHLTGlobalBarrelTrack> tracks;
135 if ((iResult=AliHLTGlobalBarrelTrack::ConvertTrackDataArray(reinterpret_cast<const AliHLTTracksData*>(pBlock->fPtr), pBlock->fSize, tracks))>0)
137 for (vector<AliHLTGlobalBarrelTrack>::iterator element=tracks.begin();
138 element!=tracks.end(); element++)
140 if (CheckCondition(&(*element), fSolenoidBz)) numberOfTracks++;
145 HLTError("can not extract tracks from data block of type %s (specification %08x) of size %d: error %d",
146 DataType2Text(pBlock->fDataType).c_str(), pBlock->fSpecification, pBlock->fSize, iResult);
151 bool condition=false;
152 description="Geometrical conditions not matched";
153 AliHLTReadoutList readout;
155 if (numberOfTracks>=fMinTracks)
158 description=fTriggerDecisionPars->GetDescription();
159 readout=fTriggerDecisionPars->GetReadoutListParameter();
160 HLTDebug("Geometrical acceptance trigger %s triggered", fTriggerDecisionPars->GetTriggerName().Data());
163 AliHLTTriggerDecision decision(
165 fTriggerDecisionPars->GetTriggerName().Data(),
166 AliHLTTriggerDomain(readout),
169 TriggerEvent(&decision, kAliHLTDataTypeTObject|kAliHLTDataOriginOut);
176 bool AliHLTTriggerBarrelGeomMultiplicity::CheckCondition(T* track, float b)
180 // see header file for class documentation
181 if (!track) return false;
183 ret = IsInDetectors(track, b);
190 bool AliHLTTriggerBarrelGeomMultiplicity::IsInDetectors(T* track, float b)
192 // See header file for class documentation
193 for(Int_t i = 0; i < fDetectorArray->GetEntries(); i++)
195 AliHLTTriggerDetectorGeom *det = static_cast<AliHLTTriggerDetectorGeom*>(fDetectorArray->At(i));
197 Double_t trackPoint[3];
198 Double_t normVector[3];
200 det->GetInitialPoint(trackPoint);
201 det->GetNormVector(normVector);
203 bool ret = track->Intersect(trackPoint, normVector, b);
207 if(det->IsInDetector(trackPoint)) return true;
213 int AliHLTTriggerBarrelGeomMultiplicity::DoInit(int argc, const char** argv)
215 // see header file for class documentation
217 // first configure the default
220 if (iResult>=0 && argc>0)
221 iResult=ConfigureFromArgumentString(argc, argv);
223 if (!fTriggerDecisionPars) {
224 HLTError("decision parameter not initialized");
231 int AliHLTTriggerBarrelGeomMultiplicity::DoDeinit()
233 // see header file for class documentation
237 int AliHLTTriggerBarrelGeomMultiplicity::ReadPreprocessorValues(const char* /*modules*/)
239 // see header file for function documentation
240 int nDetectorGeoms=0;
242 // TODO 2009-10-10: implementation
243 // for the moment very quick, just reload the magnetic field
244 return ConfigureFromCDBTObjString(kAliHLTCDBSolenoidBz);
247 int AliHLTTriggerBarrelGeomMultiplicity::GetDetectorGeomsFromCDBObject(const char *cdbEntry, const char* chainId)
249 // see header file for function documentation
250 int nDetectorGeoms=0;
254 fDetectorArray->Clear();
258 fDetectorArray = new TObjArray();
261 const char *path = cdbEntry;
263 if(!path) path = fOCDBEntry;
267 // const char* chainId=GetChainId();
268 HLTInfo("configure from entry %s, chain id %s", path, (chainId!=NULL && chainId[0]!=0)?chainId:"<none>");
269 AliCDBEntry *pEntry = AliCDBManager::Instance()->Get(path/*,GetRunNo()*/);
272 TObjArray* pArr=dynamic_cast<TObjArray*>(pEntry->GetObject());
276 for(int i = 0; i < pArr->GetEntries(); i++)
278 if(!strcmp(pArr->At(i)->ClassName(), "AliHLTTriggerDecisionParameters"))
280 fTriggerDecisionPars = dynamic_cast<AliHLTTriggerDecisionParameters*>(pArr->At(i));
282 else if(pArr->At(i)->InheritsFrom("AliHLTTriggerDetectorGeom"))
284 fDetectorArray->AddLast(dynamic_cast<AliHLTTriggerDetectorGeom*>(pArr->At(i)));
286 HLTDebug("received detector geometry of type %s", pArr->At(i)->ClassName());
290 HLTWarning("Unknown object of type %s in configuration object", pArr->At(i)->ClassName());
296 HLTError("configuration object \"%s\" has wrong type, required TObjArray", path);
297 nDetectorGeoms=-EINVAL;
302 HLTError("can not fetch object \"%s\" from OCDB", path);
303 nDetectorGeoms=-ENOENT;
307 HLTInfo("received %d detector geometries", nDetectorGeoms);
309 return nDetectorGeoms;
312 int AliHLTTriggerBarrelGeomMultiplicity::GetDetectorGeomsFromFile(const char *filename)
314 // see header file for function documentation
315 int nDetectorGeoms=0;
319 fDetectorArray->Clear();
323 fDetectorArray = new TObjArray();
329 TFile *geomfile = TFile::Open(filename, "READ");
333 HLTInfo("configure from file \"%s\"", filename);
334 TObjArray* pArr=dynamic_cast<TObjArray*>(geomfile->Get("GeomConf"));
338 for(int i = 0; i < pArr->GetEntries(); i++)
340 if(!strcmp(pArr->At(i)->ClassName(), "AliHLTTriggerDecisionParameters"))
342 fTriggerDecisionPars = dynamic_cast<AliHLTTriggerDecisionParameters*>(pArr->At(i));
344 else if(pArr->At(i)->InheritsFrom("AliHLTTriggerDetectorGeom"))
346 fDetectorArray->AddLast(dynamic_cast<AliHLTTriggerDetectorGeom*>(pArr->At(i)));
348 HLTDebug("received detector geometry of type %s", pArr->At(i)->ClassName());
352 HLTWarning("Unknown object of type %s in configuration object", pArr->At(i)->ClassName());
358 HLTError("configuration object has wrong type, required TObjArray");
359 nDetectorGeoms=-EINVAL;
364 HLTError("could not open file \"%s\"", filename);
365 nDetectorGeoms=-ENOENT;
370 HLTError("ROOT file name not specified");
372 HLTInfo("received %d detector geometries", nDetectorGeoms);
375 return nDetectorGeoms;
378 int AliHLTTriggerBarrelGeomMultiplicity::ScanConfigurationArgument(int argc, const char** argv)
380 // See header file for class documentation
381 if (argc<=0) return 0;
383 TString argument=argv[i];
385 if (argument.CompareTo("-geomfile")==0)
387 if (++i>=argc) return -EPROTO;
389 GetDetectorGeomsFromFile(argv[i]);
394 if (argument.CompareTo("-triggername")==0)
396 if (++i>=argc) return -EPROTO;
398 fTriggerName = new char[128];
399 sprintf(fTriggerName, argv[i]);
401 fOCDBEntry = fTriggerName;