uncommented stuff commented by mistake (Sergey)
[u/mrichter/AliRoot.git] / HLT / ITS / trackingSAP / AliHLTITSSAPTrackerComponent.cxx
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c9598e1c 1// **************************************************************************
2// This file is property of and copyright by the ALICE HLT Project *
3// ALICE Experiment at CERN, All rights reserved. *
4// *
5// Primary Authors: Sergey Gorbunov <sergey.gorbunov@kip.uni-heidelberg.de> *
6// Ivan Kisel <kisel@kip.uni-heidelberg.de> *
7// for The ALICE HLT Project. *
8// *
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// *
17//***************************************************************************
18
19/// @file AliHLTITSSAPTrackerComponent.h
20/// @author Ruben Shahoyan <ruben.shahoyan@cern.ch>
21/// @date August 2014
22/// @brief An ITS standalone primaries tracker/vertexer processing component for the HLT
23/// Adapted from HLT/ITS/tracking/AliHLTITSSAPTrackerComponent component
24
25/////////////////////////////////////////////////////
26// //
27// a ITS tracker processing component for the HLT //
28// //
29/////////////////////////////////////////////////////
30
31#include "AliHLTITSSAPTrackerComponent.h"
32#include "AliHLTArray.h"
33#include "AliExternalTrackParam.h"
34#include "TStopwatch.h"
35#include "TMath.h"
36#include "AliCDBEntry.h"
37#include "AliCDBManager.h"
38#include "AliGeomManager.h"
39#include "TObjString.h"
40#include <TClonesArray.h>
41#include <TGeoGlobalMagField.h>
42#include "AliITSSAPTracker.h"
43#include "AliHLTITSSpacePointData.h"
44#include "AliHLTITSClusterDataFormat.h"
45#include "AliHLTDataTypes.h"
46#include "AliHLTExternalTrackParam.h"
47#include "AliGeomManager.h"
48#include "AliHLTTrackMCLabel.h"
49#include "AliITSRecPoint.h"
c1cd4fce 50#include "AliHLTSAPTrackerData.h"
c9598e1c 51#include <map>
52
53using namespace std;
54
55/** ROOT macro for the implementation of ROOT specific class methods */
56ClassImp( AliHLTITSSAPTrackerComponent )
57AliHLTITSSAPTrackerComponent::AliHLTITSSAPTrackerComponent()
58: fSolenoidBz( 0 ),
59 fBenchmark("ITSSAPTracker"),
60 fTracker(0),
61 fClusters(0)
62
63{
64 // see header file for class documentation
65 // or
66 // refer to README to build package
67 // or
68 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
69}
70
71AliHLTITSSAPTrackerComponent::AliHLTITSSAPTrackerComponent( const AliHLTITSSAPTrackerComponent& )
72 :AliHLTProcessor(),
73 fSolenoidBz( 0 ),
74 fBenchmark("ITSSAPTracker"),
75 fTracker(0),
76 fClusters(0)
77{
78 // see header file for class documentation
79 HLTFatal( "copy constructor untested" );
80}
81
82AliHLTITSSAPTrackerComponent& AliHLTITSSAPTrackerComponent::operator=( const AliHLTITSSAPTrackerComponent& )
83{
84 // see header file for class documentation
85 HLTFatal( "assignment operator untested" );
86 return *this;
87}
88
89AliHLTITSSAPTrackerComponent::~AliHLTITSSAPTrackerComponent()
90{
91 // see header file for class documentation
92 delete fTracker;
93 delete fClusters;
94}
95
96//
97// Public functions to implement AliHLTComponent's interface.
98// These functions are required for the registration process
99//
100
101const char* AliHLTITSSAPTrackerComponent::GetComponentID()
102{
103 // see header file for class documentation
c1cd4fce 104 return "ITSSAPTracker";
c9598e1c 105}
106
107void AliHLTITSSAPTrackerComponent::GetInputDataTypes( vector<AliHLTComponentDataType>& list )
108{
109 // see header file for class documentation
110 list.clear();
111 list.push_back( kAliHLTDataTypeESDVertex|kAliHLTDataOriginITS );
112 list.push_back( kAliHLTDataTypeClusters|kAliHLTDataOriginITSSSD );
113 list.push_back( kAliHLTDataTypeClusters|kAliHLTDataOriginITSSPD );
114 list.push_back( kAliHLTDataTypeClusters|kAliHLTDataOriginITSSDD );
115 list.push_back( kAliHLTDataTypeClusters|kAliHLTDataOriginITS );
116}
117
118AliHLTComponentDataType AliHLTITSSAPTrackerComponent::GetOutputDataType()
119{
120 // see header file for class documentation
121 return kAliHLTMultipleDataType;
122}
123
124int AliHLTITSSAPTrackerComponent::GetOutputDataTypes(AliHLTComponentDataTypeList& tgtList)
125{
126 // see header file for class documentation
127 tgtList.clear();
128 tgtList.push_back(kAliHLTDataTypeTrack|kAliHLTDataOriginITS);
129 tgtList.push_back(kAliHLTDataTypeTrack|kAliHLTDataOriginITSOut);
130 tgtList.push_back(kAliHLTDataTypeTrackMC|kAliHLTDataOriginITS );
131 tgtList.push_back(kAliHLTDataTypeESDVertex|kAliHLTDataOriginOut ); // RS??: is this correct?
132 return tgtList.size();
133}
134
135void AliHLTITSSAPTrackerComponent::GetOutputDataSize( unsigned long& constBase, double& inputMultiplier )
136{
137 // define guess for the output data size
138 constBase = 200; // minimum size
139 inputMultiplier = 2.; // size relative to input
140}
141
142AliHLTComponent* AliHLTITSSAPTrackerComponent::Spawn()
143{
144 // see header file for class documentation
145 return new AliHLTITSSAPTrackerComponent;
146}
147
148void AliHLTITSSAPTrackerComponent::SetDefaultConfiguration()
149{
150 // Set default configuration for the CA tracker component
151 // Some parameters can be later overwritten from the OCDB
152
153 fSolenoidBz = -5.00668;
154
155}
156
157int AliHLTITSSAPTrackerComponent::ReadConfigurationString( const char* arguments )
158{
159 // Set configuration parameters for the CA tracker component from the string
160
161 int iResult = 0;
162 if ( !arguments ) return iResult;
163
164 TString allArgs = arguments;
165 TString argument;
166 int bMissingParam = 0;
167
168 TObjArray* pTokens = allArgs.Tokenize( " " );
169
170 int nArgs = pTokens ? pTokens->GetEntries() : 0;
171
172 for ( int i = 0; i < nArgs; i++ ) {
173 argument = ( ( TObjString* )pTokens->At( i ) )->GetString();
174 if ( argument.IsNull() ) continue;
175
176 if ( argument.CompareTo( "-solenoidBz" ) == 0 ) {
177 if ( ( bMissingParam = ( ++i >= pTokens->GetEntries() ) ) ) break;
178 HLTWarning("argument -solenoidBz is deprecated, magnetic field set up globally (%f)", GetBz());
179 continue;
180 }
181
182 HLTError( "Unknown option \"%s\"", argument.Data() );
183 iResult = -EINVAL;
184 }
185 delete pTokens;
186
187 if ( bMissingParam ) {
188 HLTError( "Specifier missed for parameter \"%s\"", argument.Data() );
189 iResult = -EINVAL;
190 }
191
192 return iResult;
193}
194
195
196int AliHLTITSSAPTrackerComponent::ReadCDBEntry( const char* cdbEntry, const char* chainId )
197{
198 // see header file for class documentation
199
200 const char* defaultNotify = "";
201
202 if ( !cdbEntry ) {
203 return 0;// need to add the HLT/ConfigITS/ITSTracker directory to cdb SG!!!
204 //cdbEntry = "HLT/ConfigITS/ITSTracker";
205 //defaultNotify = " (default)";
206 //chainId = 0;
207 }
208
209 HLTInfo( "configure from entry \"%s\"%s, chain id %s", cdbEntry, defaultNotify, ( chainId != NULL && chainId[0] != 0 ) ? chainId : "<none>" );
210 AliCDBEntry *pEntry = AliCDBManager::Instance()->Get( cdbEntry );//,GetRunNo());
211
212 if ( !pEntry ) {
213 HLTError( "cannot fetch object \"%s\" from CDB", cdbEntry );
214 return -EINVAL;
215 }
216
217 TObjString* pString = dynamic_cast<TObjString*>( pEntry->GetObject() );
218
219 if ( !pString ) {
220 HLTError( "configuration object \"%s\" has wrong type, required TObjString", cdbEntry );
221 return -EINVAL;
222 }
223
224 HLTInfo( "received configuration object string: \"%s\"", pString->GetString().Data() );
225
226 return ReadConfigurationString( pString->GetString().Data() );
227}
228
229
230int AliHLTITSSAPTrackerComponent::Configure( const char* cdbEntry, const char* chainId, const char *commandLine )
231{
232 // Configure the component
233 // There are few levels of configuration,
234 // parameters which are set on one step can be overwritten on the next step
235
236 //* read hard-coded values
237
238 SetDefaultConfiguration();
239
240 //* read the default CDB entry
241
242 int iResult1 = ReadCDBEntry( NULL, chainId );
243
244 //* read magnetic field
245
246 fSolenoidBz = GetBz();
247
248 //* read the actual CDB entry if required
249
250 int iResult2 = ( cdbEntry ) ? ReadCDBEntry( cdbEntry, chainId ) : 0;
251
252 //* read extra parameters from input (if they are)
253
254 int iResult3 = 0;
255
256 if ( commandLine && commandLine[0] != '\0' ) {
257 HLTInfo( "received configuration string from HLT framework: \"%s\"", commandLine );
258 iResult3 = ReadConfigurationString( commandLine );
259 }
260
261 // Initialise the tracker here
262
263 return iResult1 ? iResult1 : ( iResult2 ? iResult2 : iResult3 );
264}
265
266
267
268int AliHLTITSSAPTrackerComponent::DoInit( int argc, const char** argv )
269{
270 // Configure the ITS tracker component
271
272 if ( fTracker ) return -EINPROGRESS;
273
274 if(AliGeomManager::GetGeometry()==NULL){
275 AliGeomManager::LoadGeometry();
276 }
277 AliGeomManager::ApplyAlignObjsFromCDB("ITS");
278
279 TString arguments = "";
280 for ( int i = 0; i < argc; i++ ) {
281 if ( !arguments.IsNull() ) arguments += " ";
282 arguments += argv[i];
283 }
284
285 int ret = Configure( NULL, NULL, arguments.Data() );
286
287 // Check field
288 if (!TGeoGlobalMagField::Instance()) {
289 HLTError("magnetic field not initialized, please set up TGeoGlobalMagField and AliMagF");
290 return -ENODEV;
291 }
292 fSolenoidBz=GetBz();
293
294 fTracker = new AliITSSAPTracker();
295 fTracker->Init();
296 fBenchmark.Reset();
297 fBenchmark.SetTimer(0,"total");
298 fBenchmark.SetTimer(1,"reco");
299 return ret;
300}
301
302
303int AliHLTITSSAPTrackerComponent::DoDeinit()
304{
305 // see header file for class documentation
306 delete fTracker;
307 fTracker = 0;
308 return 0;
309}
310
311
312
313int AliHLTITSSAPTrackerComponent::Reconfigure( const char* cdbEntry, const char* chainId )
314{
315 // Reconfigure the component from OCDB .
316
317 return Configure( cdbEntry, chainId, NULL );
318}
319
320
321
322int AliHLTITSSAPTrackerComponent::DoEvent
323(
324 const AliHLTComponentEventData& evtData,
325 const AliHLTComponentBlockData* blocks,
326 AliHLTComponentTriggerData& /*trigData*/,
c1cd4fce 327 AliHLTUInt8_t* outputPtr,
c9598e1c 328 AliHLTUInt32_t& size,
c1cd4fce 329 vector<AliHLTComponentBlockData>& outputBlocks )
c9598e1c 330{
331 //* process event
332
c1cd4fce 333 AliHLTUInt32_t maxBufferSize = size;
c9598e1c 334 size = 0; // output size
335
336 if (!IsDataEvent()) return 0;
337
338 if ( evtData.fBlockCnt <= 0 ) {
339 HLTWarning( "no blocks in event" );
340 return 0;
341 }
342
343 fBenchmark.StartNewEvent();
344 fBenchmark.Start(0);
345
346 // Event reconstruction in ITS
347
348 int iResult=0;
349
350
351 // Check if there is an SPD vertex
352 const AliESDVertex *vertexSPD = 0;
353
354 {
c1cd4fce 355 const TObject *iter = GetFirstInputObject(kAliHLTDataTypeESDVertex|kAliHLTDataOriginITSSPD);
c9598e1c 356 if( iter != NULL ) {
357 if( !( vertexSPD = dynamic_cast<AliESDVertex*>(const_cast<TObject*>( iter ) ) ) ){
358 HLTError("ITS SPD vertex object is corrupted");
359 iResult = -EINVAL;
360 }
361 }
362 else {
363 HLTWarning("No SPD vertex, skip ITS standalone reconstruction");
364 return 0;
365 }
366 }
367
368 int nBlocks = evtData.fBlockCnt;
369 if (!fClusters) fClusters = new TClonesArray("AliITSRecPoint",1000);
370 //
371 int nClTotal = 0;
372 for (int ndx=0; ndx<nBlocks && iResult>=0; ndx++) {
373
374 const AliHLTComponentBlockData* iter = blocks+ndx;
375
376 // Read ITS clusters
377
378 if ( (iter->fDataType == (kAliHLTDataTypeClusters|kAliHLTDataOriginITSSSD) ) ||
379 (iter->fDataType == (kAliHLTDataTypeClusters|kAliHLTDataOriginITSSPD) ) ||
380 (iter->fDataType == (kAliHLTDataTypeClusters|kAliHLTDataOriginITSSDD) ) ||
381 (iter->fDataType == (kAliHLTDataTypeClusters|kAliHLTDataOriginITS) )
382 ){
383
384 fBenchmark.AddInput(iter->fSize);
385
386 AliHLTITSClusterData *inPtr=reinterpret_cast<AliHLTITSClusterData*>( iter->fPtr );
387 int nClusters = inPtr->fSpacePointCnt;
388 for( int icl=0; icl<nClusters; icl++ ){
389 AliHLTITSSpacePointData &d = inPtr->fSpacePoints[icl];
390
391 Int_t lab[4] = { d.fTracks[0], d.fTracks[1], d.fTracks[2], d.fIndex };
392 Int_t info[3] = { d.fNy, d.fNz, d.fLayer };
393 Float_t hit[6] = { d.fY, d.fZ, d.fSigmaY2, d.fSigmaZ2, d.fQ, d.fSigmaYZ };
394 if( d.fLayer==4 ) hit[5] = -hit[5];
395 // tracker does not out the clusters, add them to transient array
396 fTracker->AddCluster( new((*fClusters)[nClTotal++]) AliITSRecPoint(lab,hit,info) );
397 }
398 }
399
400 }// end read input blocks
401
402 // Reconstruct the event
403
404 fBenchmark.Start(1);
405 fTracker->SetSPDVertex(vertexSPD);
406 fTracker->ProcessEvent();
407 fBenchmark.Stop(1);
408
409
410 // Fill output tracks
c9598e1c 411 int nAddedTracks = 0;
c1cd4fce 412 {
413 int nFoundTracks = fTracker->GetNTracks();
414 AliHLTUInt32_t blockSize = sizeof(AliHLTITSSAPTrackerDataContainer) + nFoundTracks*sizeof(AliHLTITSSAPTrackerData);
415 if( size + blockSize > maxBufferSize ){
416 HLTWarning( "Output buffer size exceed (buffer size %d, current size %d), %d tracks are not stored",
417 maxBufferSize, size + blockSize, nFoundTracks);
418 iResult = -ENOSPC;
419 }
420 if( iResult>=0 ){
421 blockSize = sizeof(AliHLTITSSAPTrackerDataContainer);
422 AliHLTITSSAPTrackerDataContainer *data = reinterpret_cast<AliHLTITSSAPTrackerDataContainer*>(outputPtr);
423 data->fCount=0;
424 for (int itr=0;itr<nFoundTracks;itr++) {
425 const AliITSSAPTracker::ITStrack_t& track = fTracker->GetTrack(itr);
426 // the track is just a struct of 2 AliExternalTrackParams (params at vertex and at the outer ITS layer)
427 // + some extra info, see "struct ITStrack" in the AliITSSAPTracker.h
428 if ( track.paramOut.TestBit(AliITSSAPTracker::kInvalidBit) ||
429 track.paramInw.TestBit(AliITSSAPTracker::kInvalidBit)) continue;
430 // use only those tracks whose both inward and outward params are OK.
431 AliHLTITSSAPTrackerData &trcHLT = data->fTracks[data->fCount];
432 trcHLT.paramOut.SetExternalTrackParam(&track.paramOut);
433 trcHLT.paramInw.SetExternalTrackParam(&track.paramInw);
434 trcHLT.chi2 = track.chi2;
435 trcHLT.ncl = track.ncl;
436 trcHLT.label = track.label;
437 data->fCount++;
438 blockSize += sizeof(AliHLTITSSAPTrackerData);
439 nAddedTracks++;
440 }
441
442 AliHLTComponentBlockData resultData;
443 FillBlockData( resultData );
444 resultData.fOffset = size;
445 resultData.fSize = blockSize;
446 resultData.fDataType = kAliHLTDataTypeITSSAPData|kAliHLTDataOriginITS;
447 fBenchmark.AddOutput(resultData.fSize);
448 outputBlocks.push_back( resultData );
449 size += resultData.fSize;
450 }
c9598e1c 451 }
452
c9598e1c 453 Bool_t vtxOK = kFALSE;
c1cd4fce 454 { // Fill output vertexTracks
455 AliESDVertex& vtxTracks = fTracker->GetTrackVertex();
456 if (vtxTracks.GetStatus()==1) {
457 PushBack( (TObject*) &vtxTracks, kAliHLTDataTypeESDVertex|kAliHLTDataOriginITS,0 );
458 vtxOK = kTRUE;
459 }
c9598e1c 460 }
461 //
462 fTracker->Clear();
463 fClusters->Clear();
464 //
465 fBenchmark.Stop(0);
466
467 // Set log level to "Warning" for on-line system monitoring
468 HLTInfo( "ITS SAP Tracker: output %d tracks; input %d clusters, VertexTracks: %s",
469 nAddedTracks, nClTotal, vtxOK ? "OK" : "Found" );
470
471 HLTInfo(fBenchmark.GetStatistics());
472 return iResult;
473}