[u/mrichter/AliRoot.git] / HBTAN / AliHBTReaderInternal.cxx

#include "AliHBTReaderInternal.h"

#include <TTree.h>
#include <TFile.h>
#include <TParticle.h>
#include <TError.h>
#include <AliRun.h>
#include <AliMagF.h>

#include "AliHBTRun.h"
#include "AliHBTEvent.h"
#include "AliHBTParticle.h"
#include "AliHBTParticleCut.h"


ClassImp(AliHBTReaderInternal)
/********************************************************************/

AliHBTReaderInternal::AliHBTReaderInternal()
{
//Defalut constructor
  fParticles = 0x0; 
  fTracks = 0x0;
  fIsRead = kFALSE;
}
/********************************************************************/

AliHBTReaderInternal::AliHBTReaderInternal(const char *filename):fFileName(filename)
{ 
//constructor 
//filename - name of file to open
 fParticles = new AliHBTRun();
 fTracks    = new AliHBTRun();
 fIsRead = kFALSE;
}
/********************************************************************/

AliHBTReaderInternal::AliHBTReaderInternal(TObjArray* dirs, const char *filename):
  AliHBTReader(dirs),fFileName(filename)
{ 
//ctor
//dirs contains strings with directories to look data in
//filename - name of file to open
 fParticles = new AliHBTRun();
 fTracks    = new AliHBTRun();
 fIsRead = kFALSE;
}
/********************************************************************/

AliHBTReaderInternal::~AliHBTReaderInternal()
 {
 //desctructor
   delete fParticles;
   delete fTracks;
 }
/********************************************************************/

AliHBTEvent* AliHBTReaderInternal::GetParticleEvent(Int_t n)
 {
 //returns Nth event with simulated particles
   if (!fIsRead) 
    if(Read(fParticles,fTracks))
     {
       Error("GetParticleEvent","Error in reading");
       return 0x0;
     }
   return fParticles->GetEvent(n);
 }
/********************************************************************/

AliHBTEvent* AliHBTReaderInternal::GetTrackEvent(Int_t n)
 {
 //returns Nth event with reconstructed tracks
   if (!fIsRead) 
    if(Read(fParticles,fTracks))
     {
       Error("GetTrackEvent","Error in reading");
       return 0x0;
     }
   return fTracks->GetEvent(n);
 }
/********************************************************************/

Int_t AliHBTReaderInternal::GetNumberOfPartEvents()
 {
 //returns number of events of particles
   if (!fIsRead) 
    if ( Read(fParticles,fTracks))
     {
       Error("GetNumberOfPartEvents","Error in reading");
       return 0;
     }
   return fParticles->GetNumberOfEvents();
 }

/********************************************************************/
Int_t AliHBTReaderInternal::GetNumberOfTrackEvents()
 {
 //returns number of events of tracks
  if (!fIsRead)
    if(Read(fParticles,fTracks))
     {
       Error("GetNumberOfTrackEvents","Error in reading");
       return 0;
     }
  return fTracks->GetNumberOfEvents();
 }
/********************************************************************/

Int_t AliHBTReaderInternal::Read(AliHBTRun* particles, AliHBTRun *tracks)
 {
 //reads data and puts put to the particles and tracks objects
 //reurns 0 if everything is OK
 //
  Info("Read","");
  Int_t i; //iterator and some temprary values
  Int_t totalNevents = 0; //total number of read events
  Int_t Nevents = 0;
  Int_t currentdir = 0;
  Int_t Ndirs;
  Int_t counter;
  TFile *aFile;//file with tracks
  AliHBTParticle* tpart = 0x0, *ttrack = 0x0;
  
  if (!particles) //check if an object is instatiated
   {
     Error("Read"," particles object must instatiated before passing it to the reader");
   }
  if (!tracks)  //check if an object is instatiated
   {
     Error("Read"," tracks object must instatiated before passing it to the reader");
   }
  particles->Reset();//clear runs == delete all old events
  tracks->Reset();
 
  if (fDirs) //if array with directories is supplied by user
   {
     Ndirs = fDirs->GetEntries(); //get the number if directories
   }
  else
   {
     Ndirs = 0; //if the array is not supplied read only from current directory
   }

  TClonesArray* pbuffer = new TClonesArray("AliHBTParticle",15000);
  TClonesArray* tbuffer = new TClonesArray("AliHBTParticle",15000);

  do  //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./"
   {
    
    if( (i=OpenFile(aFile, currentdir)) )
     {
       Error("Read","Exiting due to problems with opening files. Errorcode %d",i);
       return i;
     }
   /***************************/
   /***************************/
   /***************************/
    
     TTree* tree = (TTree*)aFile->Get("data");
     if (tree == 0x0)
      {
       Error("Read","Can not get the tree");
       return 1;
      }
     
     TBranch *trackbranch=tree->GetBranch("tracks");//get the branch with tracks
     if (trackbranch == 0x0) ////check if we got the branch
       {//if not return with error
         Warning("Read","Can't find a branch with tracks !\n"); 
       }
     else
      {
        trackbranch->SetAddress(&tbuffer);
      }

     TBranch *partbranch=tree->GetBranch("particles");//get the branch with particles
     if (partbranch == 0x0) ////check if we got the branch
       {//if not return with error
         Warning("Read","Can't find a branch with particles !\n"); 
       }
     else
      {
        partbranch->SetAddress(&pbuffer);
      }
     
     Nevents = (Int_t)tree->GetEntries();
     Info("Read","________________________________________________________");
     Info("Read","Found %d event(s) in directory %s",Nevents,GetDirName(currentdir).Data());
     
     for (Int_t currentEvent =0; currentEvent<Nevents;currentEvent++)
      {
       Info("Read","Event %d",currentEvent);
       tree->GetEvent(currentEvent);
       
       counter = 0;  
       if (partbranch && trackbranch)
        {
           for(i = 0; i < pbuffer->GetEntries(); i++)
             {
               tpart = dynamic_cast<AliHBTParticle*>(pbuffer->At(i));
               ttrack =  dynamic_cast<AliHBTParticle*>(tbuffer->At(i));

               if( tpart == 0x0 ) continue; //if returned pointer is NULL
               if( tpart->GetPDG()==0x0 ) continue; //if particle has crezy PDG code (not known to our database)
               if( Pass(tpart) ) continue; //check if we are intersted with particles of this type 
                                                          //if not take next partilce
               AliHBTParticle* part = new AliHBTParticle(*tpart);
               AliHBTParticle* track = new AliHBTParticle(*ttrack);
               particles->AddParticle(totalNevents,part);//put track and particle on the run
               tracks->AddParticle(totalNevents,track);
               counter++;
             }
            Info("Read","   Read: %d particles and tracks",counter);
        }
       else
        {  
         if (partbranch)
          {
            for(i = 0; i < pbuffer->GetEntries(); i++)
             {
               tpart = dynamic_cast<AliHBTParticle*>(pbuffer->At(i));
               if(tpart == 0x0) continue; //if returned pointer is NULL
               if(tpart->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database)
               if(Pass(tpart)) continue; //check if we are intersted with particles of this type 
                                         //if not take next partilce
 
               AliHBTParticle* part = new AliHBTParticle(*tpart);
               particles->AddParticle(totalNevents,part);//put track and particle on the run
               counter++;
             }
            Info("Read","   Read: %d particles and tracks",counter);
          }
         else Info("Read","   Read: 0 particles");
         
         if (trackbranch)
          {
            for(i = 0; i < tbuffer->GetEntries(); i++)
             {
               tpart = dynamic_cast<AliHBTParticle*>(tbuffer->At(i));
               if(tpart == 0x0) continue; //if returned pointer is NULL
               if(tpart->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database)
               if(Pass(tpart)) continue; //check if we are intersted with particles of this type 
                                                   //if not take next partilce
               AliHBTParticle* part = new AliHBTParticle(*tpart);
               tracks->AddParticle(totalNevents,part);//put track and particle on the run
               counter++;
             }
            Info("Read","   Read: %d tracks",counter);
          }
         else Info("Read","   Read: 0 tracks");
        }
        totalNevents++;
       }

    /***************************/
    /***************************/
    /***************************/
    currentdir++;
    delete tree;
    aFile->Close();
    delete aFile;
    aFile = 0x0;

   }while(currentdir < Ndirs);

  delete pbuffer;
  delete tbuffer;
  fIsRead = kTRUE;
  return 0;
}

/********************************************************************/

Int_t AliHBTReaderInternal::OpenFile(TFile*& aFile,Int_t event)
{

   const TString& dirname = GetDirName(event); 
   if (dirname == "")
    {
      Error("OpenFile","Can not get directory name");
      return 4;
    }
   
   TString filename = dirname +"/"+ fFileName;
   aFile = TFile::Open(filename.Data());
   if ( aFile  == 0x0 ) 
     {
       Error("OpenFiles","Can't open file with tacks named %s",filename.Data());
       return 1;
     }
   if (!aFile->IsOpen())
     {
       Error("OpenFiles","Can't open file with tacks named %s",filename.Data());
       return 1;
     }
   return 0; 
}
/********************************************************************/

Int_t AliHBTReaderInternal::Write(AliHBTReader* reader,const char* outfile)
 {
  //reads tracks from reader and writes runs to file
  Int_t i,j;
  
  ::Info("AliHBTReaderInternal::Write","________________________________________________________");
  ::Info("AliHBTReaderInternal::Write","________________________________________________________");
  ::Info("AliHBTReaderInternal::Write","________________________________________________________");

  TFile *histoOutput = TFile::Open(outfile,"recreate");
  
  if (!histoOutput->IsOpen())
   {
     ::Error("AliHBTReaderInternal::Write","File is not opened");
     return 1;
   }
    
  TTree *tracktree = new TTree("data","Tree with tracks");

  TClonesArray* pbuffer = new TClonesArray("AliHBTParticle",15000);
  TClonesArray* tbuffer = new TClonesArray("AliHBTParticle",15000);

  TClonesArray &particles = *pbuffer;
  TClonesArray &tracks = *tbuffer;
    
  TString name("Tracks");
  
  Int_t NT = reader->GetNumberOfTrackEvents();
  Int_t NP = reader->GetNumberOfPartEvents();
  
  Bool_t trck = (NT > 0) ? kTRUE : kFALSE;
  Bool_t part = (NP > 0) ? kTRUE : kFALSE;

  TBranch *trackbranch = 0x0, *partbranch = 0x0;
  
  if (trck) trackbranch = tracktree->Branch("tracks","TClonesArray",&tbuffer);
  if (part) partbranch = tracktree->Branch("particles","TClonesArray",&pbuffer);
  
  if ( (trck) && (part) && (NP != NT))
   {
     ::Warning("AliHBTReaderInternal::Write","Number of track and particle events is different");
   }
  
  Int_t N;
  if (NT >= NP ) N = NT; else N = NP;

  for ( i =0;i< N; i++)
    {
      ::Info("AliHBTReaderInternal::Write","Event %d",i+1);
      if (trck && (i<=NT))
       {
         AliHBTEvent* trackev = reader->GetTrackEvent(i);
         for ( j = 0; j< trackev->GetNumberOfParticles();j++)
          {
            const AliHBTParticle& t= *(trackev->GetParticle(j));
            new (tracks[j]) AliHBTParticle(t);
          }
         ::Info("AliHBTReaderInternal::Write","    Tracks: %d",j);
       }else ::Info("AliHBTReaderInternal::Write","NO TRACKS");
      
      if (part && (i<=NP))
       {
        AliHBTEvent* partev = reader->GetParticleEvent(i);
        for ( j = 0; j< partev->GetNumberOfParticles();j++)
         {
           const AliHBTParticle& part= *(partev->GetParticle(j));
           new (particles[j]) AliHBTParticle(part);
         }
         ::Info("AliHBTReaderInternal::Write","    Particles: %d",j);
       }else ::Info("AliHBTReaderInternal::Write","NO PARTICLES");

      histoOutput->cd();
      tracktree->Fill();
      tracktree->AutoSave();
      tbuffer->Delete();
      pbuffer->Delete();
     }

  histoOutput->cd();
  tracktree->Write(0,TObject::kOverwrite);
  delete tracktree;

  tbuffer->SetOwner();
  pbuffer->SetOwner();
  delete pbuffer;
  delete tbuffer;

  histoOutput->Close();
  return 0;
 }
Commit	Line	Data
91923a38	1	#include "AliHBTReaderInternal.h"
91923a38	2
91923a38	3	#include <TTree.h>
	4	#include <TFile.h>
	5	#include <TParticle.h>
f701e886	6	#include <TError.h>
91923a38	7	#include <AliRun.h>
	8	#include <AliMagF.h>
	9
	10	#include "AliHBTRun.h"
	11	#include "AliHBTEvent.h"
	12	#include "AliHBTParticle.h"
	13	#include "AliHBTParticleCut.h"
	14
	15
91923a38	16	ClassImp(AliHBTReaderInternal)
	17	/********************************************************************/
	18
	19	AliHBTReaderInternal::AliHBTReaderInternal()
	20	{
f701e886	21	//Defalut constructor
91923a38	22	fParticles = 0x0;
	23	fTracks = 0x0;
	24	fIsRead = kFALSE;
	25	}
	26	/********************************************************************/
	27
	28	AliHBTReaderInternal::AliHBTReaderInternal(const char *filename):fFileName(filename)
	29	{
f701e886	30	//constructor
f701e886	31	//filename - name of file to open
91923a38	32	fParticles = new AliHBTRun();
	33	fTracks = new AliHBTRun();
	34	fIsRead = kFALSE;
	35	}
	36	/********************************************************************/
f701e886	37
91923a38	38	AliHBTReaderInternal::AliHBTReaderInternal(TObjArray* dirs, const char *filename):
	39	AliHBTReader(dirs),fFileName(filename)
	40	{
f701e886	41	//ctor
	42	//dirs contains strings with directories to look data in
	43	//filename - name of file to open
91923a38	44	fParticles = new AliHBTRun();
	45	fTracks = new AliHBTRun();
	46	fIsRead = kFALSE;
	47	}
f701e886	48	/********************************************************************/
f701e886	49
91923a38	50	AliHBTReaderInternal::~AliHBTReaderInternal()
	51	{
	52	//desctructor
	53	delete fParticles;
	54	delete fTracks;
	55	}
	56	/********************************************************************/
f701e886	57
91923a38	58	AliHBTEvent* AliHBTReaderInternal::GetParticleEvent(Int_t n)
	59	{
	60	//returns Nth event with simulated particles
	61	if (!fIsRead)
	62	if(Read(fParticles,fTracks))
	63	{
	64	Error("GetParticleEvent","Error in reading");
	65	return 0x0;
	66	}
	67	return fParticles->GetEvent(n);
	68	}
	69	/********************************************************************/
f701e886	70
91923a38	71	AliHBTEvent* AliHBTReaderInternal::GetTrackEvent(Int_t n)
	72	{
	73	//returns Nth event with reconstructed tracks
	74	if (!fIsRead)
	75	if(Read(fParticles,fTracks))
	76	{
	77	Error("GetTrackEvent","Error in reading");
	78	return 0x0;
	79	}
	80	return fTracks->GetEvent(n);
	81	}
	82	/********************************************************************/
	83
	84	Int_t AliHBTReaderInternal::GetNumberOfPartEvents()
	85	{
	86	//returns number of events of particles
	87	if (!fIsRead)
	88	if ( Read(fParticles,fTracks))
	89	{
	90	Error("GetNumberOfPartEvents","Error in reading");
	91	return 0;
	92	}
	93	return fParticles->GetNumberOfEvents();
	94	}
	95
	96	/********************************************************************/
	97	Int_t AliHBTReaderInternal::GetNumberOfTrackEvents()
	98	{
	99	//returns number of events of tracks
	100	if (!fIsRead)
	101	if(Read(fParticles,fTracks))
	102	{
	103	Error("GetNumberOfTrackEvents","Error in reading");
	104	return 0;
	105	}
	106	return fTracks->GetNumberOfEvents();
	107	}
	108	/********************************************************************/
	109
91923a38	110	Int_t AliHBTReaderInternal::Read(AliHBTRun* particles, AliHBTRun *tracks)
	111	{
	112	//reads data and puts put to the particles and tracks objects
	113	//reurns 0 if everything is OK
	114	//
f701e886	115	Info("Read","");
91923a38	116	Int_t i; //iterator and some temprary values
9d09c308	117	Int_t totalNevents = 0; //total number of read events
91923a38	118	Int_t Nevents = 0;
9d09c308	119	Int_t currentdir = 0;
9d09c308	120	Int_t Ndirs;
f701e886	121	Int_t counter;
91923a38	122	TFile *aFile;//file with tracks
9d09c308	123	AliHBTParticle* tpart = 0x0, *ttrack = 0x0;
91923a38	124
	125	if (!particles) //check if an object is instatiated
	126	{
	127	Error("Read"," particles object must instatiated before passing it to the reader");
	128	}
	129	if (!tracks) //check if an object is instatiated
	130	{
	131	Error("Read"," tracks object must instatiated before passing it to the reader");
	132	}
	133	particles->Reset();//clear runs == delete all old events
	134	tracks->Reset();
	135
91923a38	136	if (fDirs) //if array with directories is supplied by user
	137	{
	138	Ndirs = fDirs->GetEntries(); //get the number if directories
	139	}
	140	else
	141	{
	142	Ndirs = 0; //if the array is not supplied read only from current directory
	143	}
	144
	145	TClonesArray* pbuffer = new TClonesArray("AliHBTParticle",15000);
	146	TClonesArray* tbuffer = new TClonesArray("AliHBTParticle",15000);
	147
	148	do //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./"
	149	{
	150
	151	if( (i=OpenFile(aFile, currentdir)) )
	152	{
	153	Error("Read","Exiting due to problems with opening files. Errorcode %d",i);
	154	return i;
	155	}
	156	/***************************/
	157	/***************************/
	158	/***************************/
	159
	160	TTree* tree = (TTree*)aFile->Get("data");
	161	if (tree == 0x0)
	162	{
	163	Error("Read","Can not get the tree");
	164	return 1;
	165	}
	166
	167	TBranch *trackbranch=tree->GetBranch("tracks");//get the branch with tracks
	168	if (trackbranch == 0x0) ////check if we got the branch
	169	{//if not return with error
	170	Warning("Read","Can't find a branch with tracks !\n");
	171	}
	172	else
	173	{
	174	trackbranch->SetAddress(&tbuffer);
	175	}
	176
	177	TBranch *partbranch=tree->GetBranch("particles");//get the branch with particles
	178	if (partbranch == 0x0) ////check if we got the branch
	179	{//if not return with error
	180	Warning("Read","Can't find a branch with particles !\n");
	181	}
	182	else
	183	{
	184	partbranch->SetAddress(&pbuffer);
	185	}
	186
	187	Nevents = (Int_t)tree->GetEntries();
f701e886	188	Info("Read","________________________________________________________");
f701e886	189	Info("Read","Found %d event(s) in directory %s",Nevents,GetDirName(currentdir).Data());
91923a38	190
91923a38	191	for (Int_t currentEvent =0; currentEvent<Nevents;currentEvent++)
9d09c308	192	{
f701e886	193	Info("Read","Event %d",currentEvent);
9d09c308	194	tree->GetEvent(currentEvent);
f701e886	195
f701e886	196	counter = 0;
9d09c308	197	if (partbranch && trackbranch)
	198	{
	199	for(i = 0; i < pbuffer->GetEntries(); i++)
	200	{
9d09c308	201	tpart = dynamic_cast<AliHBTParticle*>(pbuffer->At(i));
	202	ttrack = dynamic_cast<AliHBTParticle*>(tbuffer->At(i));
	203
f701e886	204	if( tpart == 0x0 ) continue; //if returned pointer is NULL
	205	if( tpart->GetPDG()==0x0 ) continue; //if particle has crezy PDG code (not known to our database)
	206	if( Pass(tpart) ) continue; //check if we are intersted with particles of this type
9d09c308	207	//if not take next partilce
	208	AliHBTParticle* part = new AliHBTParticle(*tpart);
	209	AliHBTParticle* track = new AliHBTParticle(*ttrack);
	210	particles->AddParticle(totalNevents,part);//put track and particle on the run
	211	tracks->AddParticle(totalNevents,track);
f701e886	212	counter++;
9d09c308	213	}
f701e886	214	Info("Read"," Read: %d particles and tracks",counter);
9d09c308	215	}
9d09c308	216	else
f701e886	217	{
91923a38	218	if (partbranch)
	219	{
	220	for(i = 0; i < pbuffer->GetEntries(); i++)
	221	{
9d09c308	222	tpart = dynamic_cast<AliHBTParticle*>(pbuffer->At(i));
	223	if(tpart == 0x0) continue; //if returned pointer is NULL
	224	if(tpart->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database)
	225	if(Pass(tpart)) continue; //check if we are intersted with particles of this type
	226	//if not take next partilce
	227
	228	AliHBTParticle* part = new AliHBTParticle(*tpart);
	229	particles->AddParticle(totalNevents,part);//put track and particle on the run
f701e886	230	counter++;
91923a38	231	}
f701e886	232	Info("Read"," Read: %d particles and tracks",counter);
91923a38	233	}
f701e886	234	else Info("Read"," Read: 0 particles");
91923a38	235
	236	if (trackbranch)
	237	{
	238	for(i = 0; i < tbuffer->GetEntries(); i++)
	239	{
9d09c308	240	tpart = dynamic_cast<AliHBTParticle*>(tbuffer->At(i));
	241	if(tpart == 0x0) continue; //if returned pointer is NULL
	242	if(tpart->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database)
	243	if(Pass(tpart)) continue; //check if we are intersted with particles of this type
91923a38	244	//if not take next partilce
9d09c308	245	AliHBTParticle* part = new AliHBTParticle(*tpart);
9d09c308	246	tracks->AddParticle(totalNevents,part);//put track and particle on the run
f701e886	247	counter++;
91923a38	248	}
f701e886	249	Info("Read"," Read: %d tracks",counter);
91923a38	250	}
f701e886	251	else Info("Read"," Read: 0 tracks");
9d09c308	252	}
9d09c308	253	totalNevents++;
91923a38	254	}
91923a38	255
e9b3bfa8	256	/***************************/
	257	/***************************/
	258	/***************************/
	259	currentdir++;
	260	delete tree;
	261	aFile->Close();
	262	delete aFile;
	263	aFile = 0x0;
9d09c308	264
91923a38	265	}while(currentdir < Ndirs);
91923a38	266
e9b3bfa8	267	delete pbuffer;
e9b3bfa8	268	delete tbuffer;
91923a38	269	fIsRead = kTRUE;
	270	return 0;
	271	}
	272
	273	/********************************************************************/
	274
	275	Int_t AliHBTReaderInternal::OpenFile(TFile*& aFile,Int_t event)
	276	{
	277
	278	const TString& dirname = GetDirName(event);
	279	if (dirname == "")
	280	{
	281	Error("OpenFile","Can not get directory name");
	282	return 4;
	283	}
	284
	285	TString filename = dirname +"/"+ fFileName;
	286	aFile = TFile::Open(filename.Data());
	287	if ( aFile == 0x0 )
	288	{
	289	Error("OpenFiles","Can't open file with tacks named %s",filename.Data());
	290	return 1;
	291	}
	292	if (!aFile->IsOpen())
	293	{
	294	Error("OpenFiles","Can't open file with tacks named %s",filename.Data());
	295	return 1;
	296	}
	297	return 0;
	298	}
f701e886	299	/********************************************************************/
91923a38	300
	301	Int_t AliHBTReaderInternal::Write(AliHBTReader* reader,const char* outfile)
	302	{
f701e886	303	//reads tracks from reader and writes runs to file
f701e886	304	Int_t i,j;
91923a38	305
f701e886	306	::Info("AliHBTReaderInternal::Write","________________________________________________________");
	307	::Info("AliHBTReaderInternal::Write","________________________________________________________");
	308	::Info("AliHBTReaderInternal::Write","________________________________________________________");
9d09c308	309
91923a38	310	TFile *histoOutput = TFile::Open(outfile,"recreate");
	311
	312	if (!histoOutput->IsOpen())
	313	{
f701e886	314	::Error("AliHBTReaderInternal::Write","File is not opened");
91923a38	315	return 1;
	316	}
	317
91923a38	318	TTree *tracktree = new TTree("data","Tree with tracks");
	319
	320	TClonesArray* pbuffer = new TClonesArray("AliHBTParticle",15000);
	321	TClonesArray* tbuffer = new TClonesArray("AliHBTParticle",15000);
91923a38	322
	323	TClonesArray &particles = *pbuffer;
	324	TClonesArray &tracks = *tbuffer;
	325
	326	TString name("Tracks");
91923a38	327
	328	Int_t NT = reader->GetNumberOfTrackEvents();
	329	Int_t NP = reader->GetNumberOfPartEvents();
	330
	331	Bool_t trck = (NT > 0) ? kTRUE : kFALSE;
	332	Bool_t part = (NP > 0) ? kTRUE : kFALSE;
	333
	334	TBranch trackbranch = 0x0, partbranch = 0x0;
	335
91923a38	336	if (trck) trackbranch = tracktree->Branch("tracks","TClonesArray",&tbuffer);
91923a38	337	if (part) partbranch = tracktree->Branch("particles","TClonesArray",&pbuffer);
91923a38	338
	339	if ( (trck) && (part) && (NP != NT))
	340	{
f701e886	341	::Warning("AliHBTReaderInternal::Write","Number of track and particle events is different");
91923a38	342	}
	343
	344	Int_t N;
	345	if (NT >= NP ) N = NT; else N = NP;
	346
	347	for ( i =0;i< N; i++)
	348	{
f701e886	349	::Info("AliHBTReaderInternal::Write","Event %d",i+1);
91923a38	350	if (trck && (i<=NT))
	351	{
	352	AliHBTEvent* trackev = reader->GetTrackEvent(i);
	353	for ( j = 0; j< trackev->GetNumberOfParticles();j++)
	354	{
9d09c308	355	const AliHBTParticle& t= *(trackev->GetParticle(j));
9d09c308	356	new (tracks[j]) AliHBTParticle(t);
91923a38	357	}
f701e886	358	::Info("AliHBTReaderInternal::Write"," Tracks: %d",j);
f701e886	359	}else ::Info("AliHBTReaderInternal::Write","NO TRACKS");
91923a38	360
	361	if (part && (i<=NP))
	362	{
91923a38	363	AliHBTEvent* partev = reader->GetParticleEvent(i);
91923a38	364	for ( j = 0; j< partev->GetNumberOfParticles();j++)
91923a38	365	{
9d09c308	366	const AliHBTParticle& part= *(partev->GetParticle(j));
9d09c308	367	new (particles[j]) AliHBTParticle(part);
91923a38	368	}
f701e886	369	::Info("AliHBTReaderInternal::Write"," Particles: %d",j);
f701e886	370	}else ::Info("AliHBTReaderInternal::Write","NO PARTICLES");
91923a38	371
91923a38	372	histoOutput->cd();
91923a38	373	tracktree->Fill();
9d09c308	374	tracktree->AutoSave();
91923a38	375	tbuffer->Delete();
91923a38	376	pbuffer->Delete();
91923a38	377	}
91923a38	378
91923a38	379	histoOutput->cd();
91923a38	380	tracktree->Write(0,TObject::kOverwrite);
9d09c308	381	delete tracktree;
91923a38	382
9d09c308	383	tbuffer->SetOwner();
	384	pbuffer->SetOwner();
	385	delete pbuffer;
	386	delete tbuffer;
	387
	388	histoOutput->Close();
91923a38	389	return 0;
91923a38	390	}