#include "AliHBTReader.h"
+//_________________________________________________________________________
+///////////////////////////////////////////////////////////////////////////
+//
+// class AliHBTReader
+//
+// Reader Base class (reads particles and tracks and
+// puts it to the AliHBTRun objects
+//
+// Provides functionality for both buffering and non-buffering reading
+// This can be switched on/off via method SetEventBuffering(bool)
+// The main method that inheriting classes need to implement is ReadNext()
+// that read next event in queue.
+// The others are:
+// Bool_t ReadsTracks() const; specifies if reader is able to read simulated particles
+// Bool_t ReadsParticles() const; specifies if reader is able to read reconstructed tracks
+// void Rewind(); rewind reading to the beginning
+//
+// reading of next event is triggered via method Next()
+//
+// This class provides full functionality for reading from many sources
+// User can provide TObjArray of TObjString (SetDirs method or via parameter
+// in constructor) which desribes paths of directories to search data in.
+// If none specified current directory is searched.
+//
+// Piotr.Skowronski@cern.ch
+///////////////////////////////////////////////////////////////////////////
#include <TString.h>
#include <TObjString.h>
#include <TObjArray.h>
#include <TClass.h>
#include <TRandom.h>
+#include <TH1.h>
#include "AliHBTParticleCut.h"
#include "AliHBTEvent.h"
fBufferEvents(kFALSE),
fBlend(kFALSE),
fFirst(0),
- fLast(0)
+ fLast(0),
+ fTrackCounter(0x0)
{
//constructor
}
fBufferEvents(kFALSE),
fBlend(kFALSE),
fFirst(0),
- fLast(0)
+ fLast(0),
+ fTrackCounter(0x0)
{
//ctor with array of directories to read as parameter
}
/*************************************************************************************/
+AliHBTReader::AliHBTReader(const AliHBTReader& in):
+ TNamed(in),
+ fCuts((in.fCuts)?(TObjArray*)in.fCuts->Clone():0x0),
+ fDirs((in.fDirs)?(TObjArray*)in.fDirs->Clone():0x0),
+ fCurrentEvent(0),
+ fCurrentDir(0),
+ fNEventsRead(0),
+ fTracksEvent(0x0),
+ fParticlesEvent(0x0),
+ fParticles(0x0),
+ fTracks(0x0),
+ fIsRead(kFALSE),
+ fBufferEvents(in.fBufferEvents),
+ fBlend(in.fBlend),
+ fFirst(in.fFirst),
+ fLast(in.fLast),
+ fTrackCounter(0x0)
+{
+ //cpy constructor
+}
AliHBTReader::~AliHBTReader()
{
}
delete fParticlesEvent;
delete fTracksEvent;
+ delete fTrackCounter;
+}
+/*************************************************************************************/
+
+AliHBTReader& AliHBTReader::operator=(const AliHBTReader& in)
+{
+ //Assigment operator
+ if (this == &in) return *this;
+ TNamed::operator=( (const TNamed&)in );
+
+ fCuts = (in.fCuts)?(TObjArray*)in.fCuts->Clone():0x0;
+ fDirs = (in.fDirs)?(TObjArray*)in.fDirs->Clone():0x0;
+ fCurrentEvent = 0;
+ fCurrentDir = 0;
+ fNEventsRead = 0;
+ fTracksEvent = 0x0;
+ fParticlesEvent = 0x0;
+ fParticles = 0x0;
+ fTracks = 0x0;
+ fIsRead = kFALSE;
+ fBufferEvents = in.fBufferEvents;
+ fBlend = in.fBlend;
+ fFirst = in.fFirst;
+ fLast = in.fLast;
+ fTrackCounter = 0x0;
+ return *this;
}
/*************************************************************************************/
Int_t AliHBTReader::Next()
{
//moves to next event
- if ((fNEventsRead > fLast) && (fLast > 0) )
-
- do
+
+ //if asked to read up to event nb. fLast, and it is overcome, report no more events
+ if ((fNEventsRead > fLast) && (fLast > 0) ) return kTRUE;
+
+ if (fTrackCounter == 0x0)//create Track Counter
+ {
+ fTrackCounter = new TH1I("trackcounter","Track Counter",20000,0,20000);
+ fTrackCounter->SetDirectory(0x0);
+ }
+
+ do //if asked to read from event fFirst, rewind to it
{
- if ( ReadNext() == kTRUE)
+ if ( ReadNext() == kTRUE) //if no more evets, return it
return kTRUE;
}while (fNEventsRead < fFirst);
+
+ //here we have event
- if (fBlend) Blend();
+ if (fBlend) Blend();//Mix particles order
- if (fBufferEvents)
+ if (fBufferEvents)//store events if buffering is on
{
if ( ReadsTracks() && fTracksEvent)
fTracks->SetEvent(fNEventsRead-1-fFirst,fTracksEvent);
}
/*************************************************************************************/
-Bool_t AliHBTReader::Pass(AliHBTParticle* p)
+Bool_t AliHBTReader::Rejected(AliHBTParticle* p)
{
//Method examines whether particle meets all cut and particle type criteria
if(p==0x0)//of corse we not pass NULL pointers
{
- Warning("Pass()","No Pasaran! We never accept NULL pointers");
+ Warning("Rejected()","No Pasaran! We never accept NULL pointers");
return kTRUE;
}
//if no particle is specified, we pass all particles
for(Int_t i=0; i<fCuts->GetEntriesFast(); i++)
{
AliHBTParticleCut &cut = *((AliHBTParticleCut*)fCuts->At(i));
- if(!cut.Pass(p)) return kFALSE; //accepted
+ if(!cut.Rejected(p)) return kFALSE; //accepted
}
return kTRUE;//not accepted
}
/*************************************************************************************/
-Bool_t AliHBTReader::Pass(Int_t pid)
+Bool_t AliHBTReader::Rejected(Int_t pid)
{
//this method checks if any of existing cuts accepts this pid particles
//or any cuts accepts all particles
//randomly change positions of the particles after reading
//is used to check if some distr depends on order of particles
//(tracking gives particles Pt sorted)
+
+ if (fParticlesEvent == 0x0) return;
+
for (Int_t i = 2; i < fParticlesEvent->GetNumberOfParticles(); i++)
{
Int_t with = gRandom->Integer(i);
if (fTracksEvent) fTracksEvent->SwapParticles(i,with);
}
}
+/*************************************************************************************/
+
+void AliHBTReader::WriteTrackCounter() const
+{
+ //writes the counter histogram
+
+ if (fTrackCounter) fTrackCounter->Write(0,TObject::kOverwrite);
+ else
+ {
+ Warning("WriteTrackCounter","Counter is NULL");
+ }
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff