* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.3 2001/07/30 14:04:18 jchudoba
-correct bug in the initialization
-
-Revision 1.2 2001/07/28 10:44:32 hristov
-Loop variable declared once; typos corrected
-
-Revision 1.1 2001/07/27 12:59:00 jchudoba
-Manager class for merging/digitization
-
-*/
+/* $Id$ */
////////////////////////////////////////////////////////////////////////
//
// and the I/O configured (you have to specify input files
// and an output file). The manager connects appropriate trees from
// the input files according a combination returned by AliMergeCombi
-// classcreates. It creates TreeD in the output and runs once per
+// class. It creates TreeD in the output and runs once per
// event Digitize method of all existing AliDetDigitizers
// (without any option). AliDetDigitizers ask manager
// for a TTree with input (manager->GetInputTreeS(Int_t i),
// manager->SetFirstOutputEventNr(Int_t) method. The particle numbers
// in the output are shifted by MASK, which is taken from manager.
//
-// Single input file is permitted. Maximum MAXSTREAMSTOMERGE can be merged.
+// The default output is to the signal file (stream 0). This can be
+// changed with the SetOutputFile(TString fn) method.
+//
+// Single input file is permitted. Maximum kMaxStreamsToMerge can be merged.
// Input from the memory (on-the-fly merging) is not yet
// supported, as well as access to the input data by invoking methods
// on the output data.
// same geometry in all input files), gAlice is taken from the first
// input file on the first stream.
//
-// Example with MUON digitizer:
+// Example with MUON digitizer, no merging, just digitization
+//
+// AliRunDigitizer * manager = new AliRunDigitizer(1,1);
+// manager->SetInputStream(0,"galice.root");
+// AliMUONDigitizer *dMUON = new AliMUONDigitizer(manager);
+// manager->Exec("");
+//
+// Example with MUON digitizer, merge all events from
+// galice.root (signal) file with events from bgr.root
+// (background) file. Number of merged events is
+// min(number of events in galice.root, number of events in bgr.root)
+//
+// AliRunDigitizer * manager = new AliRunDigitizer(2,1);
+// manager->SetInputStream(0,"galice.root");
+// manager->SetInputStream(1,"bgr.root");
+// AliMUONDigitizer *dMUON = new AliMUONDigitizer(manager);
+// manager->Exec("");
+//
+// Example with MUON digitizer, save digits in a new file digits.root,
+// process only 1 event
//
// AliRunDigitizer * manager = new AliRunDigitizer(2,1);
-// manager->SetInputStream(0,"1track_10events_phi45_60.root");
-// manager->SetInputStream(1,"1track_10events_phi120_135.root");
-// manager->SetOutputDir("/tmp");
+// manager->SetInputStream(0,"galice.root");
+// manager->SetInputStream(1,"bgr.root");
// manager->SetOutputFile("digits.root");
// AliMUONDigitizer *dMUON = new AliMUONDigitizer(manager);
// manager->SetNrOfEventsToWrite(1);
-// manager->Digitize();
+// manager->Exec("");
//
////////////////////////////////////////////////////////////////////////
// system includes
-#include <iostream.h>
+#include <Riostream.h>
// ROOT includes
#include "TFile.h"
+#include "TList.h"
#include "TTree.h"
// AliROOT includes
-#include "AliRunDigitizer.h"
#include "AliDigitizer.h"
+#include "AliMergeCombi.h"
#include "AliRun.h"
-#include "AliHeader.h"
-#include "TParticle.h"
+#include "AliRunDigitizer.h"
#include "AliStream.h"
-#include "AliMergeCombi.h"
ClassImp(AliRunDigitizer)
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
+AliRunDigitizer::AliRunDigitizer():
+ fkMASKSTEP(0),
+ fOutputFileName(0),
+ fOutputDirName(0),
+ fOutput(0),
+ fEvent(0),
+ fNrOfEventsToWrite(0),
+ fNrOfEventsWritten(0),
+ fCopyTreesFromInput(0),
+ fTreeD(0),
+ fTreeDTPC(0),
+ fTreeDTRD(0),
+ fTreeR(0),
+ fNinputs(0),
+ fNinputsGiven(0),
+ fInputStreams(0),
+ fTreeDTPCBaseName(0),
+ fTreeTPCSBaseName(0),
+ fCombi(0),
+ fCombination(0),
+ fCombinationFileName(0),
+ fDebug(0)
+{
+ //
+ // default ctor, where no new objects can be created
+ // do not use this ctor, it is supplied only for root needs
+ //
+ for (Int_t i=0;i<kMaxStreamsToMerge;i++) {
+ fArrayTreeS[i]=fArrayTreeH[i]=fArrayTreeTPCS[i]=fArrayTreeTRDS[i]=NULL;
+ fInputFiles[i]=0;
+ }
+}
-AliRunDigitizer::AliRunDigitizer() : TNamed("AliRunDigitizer","")
+//_______________________________________________________________________
+AliRunDigitizer::AliRunDigitizer(const AliRunDigitizer& dig):
+ TTask(dig),
+ fkMASKSTEP(0),
+ fOutputFileName(0),
+ fOutputDirName(0),
+ fOutput(0),
+ fEvent(0),
+ fNrOfEventsToWrite(0),
+ fNrOfEventsWritten(0),
+ fCopyTreesFromInput(0),
+ fTreeD(0),
+ fTreeDTPC(0),
+ fTreeDTRD(0),
+ fTreeR(0),
+ fNinputs(0),
+ fNinputsGiven(0),
+ fInputStreams(0),
+ fTreeDTPCBaseName(0),
+ fTreeTPCSBaseName(0),
+ fCombi(0),
+ fCombination(0),
+ fCombinationFileName(0),
+ fDebug(0)
{
-// default ctor
- cerr<<"Don't use"<<endl;
- fCombi = 0;
- fInputFiles = 0;
- fNDigitizers = 0;
- fNinputs = 0;
- fInputStreams = 0;
+ //
+ // Copy ctor
+ //
+ dig.Copy(*this);
}
-////////////////////////////////////////////////////////////////////////
-AliRunDigitizer::AliRunDigitizer(Int_t nInputStreams, Int_t sperb) : TNamed("AliRunDigitizer","")
+//_______________________________________________________________________
+void AliRunDigitizer::Copy(AliRunDigitizer&) const
+{
+ Fatal("Copy","Not installed\n");
+}
+
+
+//_______________________________________________________________________
+AliRunDigitizer::AliRunDigitizer(Int_t nInputStreams, Int_t sperb):
+ TTask("AliRunDigitizer","The manager for Merging"),
+ fkMASKSTEP(10000000),
+ fOutputFileName(""),
+ fOutputDirName("."),
+ fOutput(0),
+ fEvent(0),
+ fNrOfEventsToWrite(-1),
+ fNrOfEventsWritten(0),
+ fCopyTreesFromInput(-1),
+ fTreeD(0),
+ fTreeDTPC(0),
+ fTreeDTRD(0),
+ fTreeR(0),
+ fNinputs(nInputStreams),
+ fNinputsGiven(0),
+ fInputStreams(new TClonesArray("AliStream",nInputStreams)),
+ fTreeDTPCBaseName("TreeD_75x40_100x60_150x60_"),
+ fTreeTPCSBaseName("TreeS_75x40_100x60_150x60_"),
+ fCombi(new AliMergeCombi(nInputStreams,sperb)),
+ fCombination(kMaxStreamsToMerge),
+ fCombinationFileName(0),
+ fDebug(0)
{
-// default ctor
+ //
+ // ctor which should be used to create a manager for merging/digitization
+ //
if (nInputStreams == 0) {
Error("AliRunDigitizer","Specify nr of input streams");
return;
}
- Int_t i;
- for (i=0;i<MAXDETECTORS;i++) fDigitizers[i]=0;
- fNDigitizers = 0;
- fNinputs = nInputStreams;
- fOutputFileName = "digits.root";
- fOutputDirName = "/tmp/";
- fCombination.Set(MAXSTREAMSTOMERGE);
- for (i=0;i<MAXSTREAMSTOMERGE;i++) {
- fArrayTreeS[i]=fArrayTreeH[i]=fArrayTreeTPCS[i]=NULL;
+ for (Int_t i=0;i<kMaxStreamsToMerge;i++) {
+ fArrayTreeS[i]=fArrayTreeH[i]=fArrayTreeTPCS[i]=fArrayTreeTRDS[i]=NULL;
fCombination[i]=-1;
}
- fkMASKSTEP = 10000000;
fkMASK[0] = 0;
- for (i=1;i<MAXSTREAMSTOMERGE;i++) {
+ for (Int_t i=1;i<kMaxStreamsToMerge;i++) {
fkMASK[i] = fkMASK[i-1] + fkMASKSTEP;
}
- fInputStreams = new TClonesArray("AliStream",nInputStreams);
+
TClonesArray &lInputStreams = *fInputStreams;
- for (i=0;i<nInputStreams;i++) {
- new(lInputStreams[i]) AliStream();
- }
- fInputFiles = new TClonesArray("TFile",1);
- fOutput = 0;
- fEvent = 0;
- fNrOfEventsToWrite = 0;
- fNrOfEventsWritten = 0;
- fCopyTreesFromInput = -1;
- fCombi = new AliMergeCombi(nInputStreams,sperb);
- fDebug = 3;
- if (GetDebug()>2)
- cerr<<"AliRunDigitizer::AliRunDigitizer() called"<<endl;
-}
+// the first Input is open RW to be output as well
+ new(lInputStreams[0]) AliStream("UPDATE");
+ for (Int_t i=1;i<nInputStreams;i++) {
+ new(lInputStreams[i]) AliStream("READ");
+ }
-////////////////////////////////////////////////////////////////////////
+ for (Int_t i=0; i<kMaxStreamsToMerge; i++) fInputFiles[i]=0;
+}
+//_______________________________________________________________________
AliRunDigitizer::~AliRunDigitizer() {
// dtor
- if (fInputFiles) {
- delete fInputFiles;
- fInputFiles = 0;
- }
- if (fInputStreams) {
+// do not delete subtasks, let the creator delete them
+ if (GetListOfTasks())
+ GetListOfTasks()->Clear("nodelete");
+
delete fInputStreams;
- fInputStreams = 0;
- }
- if (fCombi) {
delete fCombi;
- fCombi = 0;
- }
-
}
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
void AliRunDigitizer::AddDigitizer(AliDigitizer *digitizer)
{
// add digitizer to the list of active digitizers
-
- if (fNDigitizers >= MAXDETECTORS) {
- cerr<<"Too many detectors to digitize. Increase value of MAXDETECTORS"
- <<" constant in AliRunDigitizer.h and recompile or decrease the"
- <<" the number of detectors"<<endl;
- } else {
- fDigitizers[fNDigitizers++] = digitizer;
- }
+ this->Add(digitizer);
}
-////////////////////////////////////////////////////////////////////////
-
-void AliRunDigitizer::SetInputStream(Int_t i, char *inputFile)
+//_______________________________________________________________________
+void AliRunDigitizer::SetInputStream(Int_t i, const char *inputFile)
{
+ //
+ // Sets the name of the input file
+ //
if (i > fInputStreams->GetLast()) {
Error("SetInputStream","Input stream number too high");
return;
static_cast<AliStream*>(fInputStreams->At(i))->AddFile(inputFile);
}
-////////////////////////////////////////////////////////////////////////
-void AliRunDigitizer::Digitize()
+//_______________________________________________________________________
+void AliRunDigitizer::Digitize(Option_t* option)
{
// get a new combination of inputs, connect input trees and loop
// over all digitizers
- if (!InitGlobal()) {
- cerr<<"False from InitGlobal"<<endl;
- return;
- }
// take gAlice from the first input file. It is needed to access
// geometry data
- if (!static_cast<AliStream*>(fInputStreams->At(0))->ImportgAlice()) {
- cerr<<"gAlice object not found in the first file of "
- <<"the 1st stream"<<endl;
+// If gAlice is already in memory, use it
+ if (!gAlice) {
+ if (!static_cast<AliStream*>(fInputStreams->At(0))->ImportgAlice()) {
+ cerr<<"gAlice object not found in the first file of "
+ <<"the 1st stream"<<endl;
+ return;
+ }
+ }
+ if (!InitGlobal()) {
+ cerr<<"False from InitGlobal"<<endl;
return;
}
Int_t eventsCreated = 0;
- while (eventsCreated++ < fNrOfEventsToWrite) {
-// if (GetDebug()>2) PrintCombination();
- ConnectInputTrees();
+// loop until there is anything on the input in case fNrOfEventsToWrite < 0
+ while ((eventsCreated++ < fNrOfEventsToWrite) || (fNrOfEventsToWrite < 0)) {
+ if (!ConnectInputTrees()) break;
InitEvent();
// loop over all registered digitizers and let them do the work
- for (Int_t i=0;i<fNDigitizers; i++) {
- fDigitizers[i]->Digitize();
- }
+ ExecuteTasks(option);
+ CleanTasks();
FinishEvent();
}
FinishGlobal();
}
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
Bool_t AliRunDigitizer::ConnectInputTrees()
{
// fill arrays fArrayTreeS, fArrayTreeH and fArrayTreeTPCS with
// null pointers can be in the output, AliDigitizer has to check it
TTree *tree;
- char treeName[20];
+ char treeName[50];
Int_t serialNr;
- Int_t eventNr[MAXSTREAMSTOMERGE], delta[MAXSTREAMSTOMERGE];
+ Int_t eventNr[kMaxStreamsToMerge], delta[kMaxStreamsToMerge];
fCombi->Combination(eventNr, delta);
for (Int_t i=0;i<fNinputs;i++) {
if (delta[i] == 1) {
AliStream *iStream = static_cast<AliStream*>(fInputStreams->At(i));
if (!iStream->NextEventInStream(serialNr)) return kFALSE;
+ fInputFiles[i]=iStream->CurrentFile();
sprintf(treeName,"TreeS%d",serialNr);
tree = static_cast<TTree*>(iStream->CurrentFile()->Get(treeName));
+ if (fArrayTreeS[i]) {
+ delete fArrayTreeS[i];
+ fArrayTreeS[i] = 0;
+ }
fArrayTreeS[i] = tree;
sprintf(treeName,"TreeH%d",serialNr);
tree = static_cast<TTree*>(iStream->CurrentFile()->Get(treeName));
+ if (fArrayTreeH[i]) {
+ delete fArrayTreeH[i];
+ fArrayTreeH[i] = 0;
+ }
fArrayTreeH[i] = tree;
- sprintf(treeName,"TreeS_75x40_100x60_%d",serialNr);
+ sprintf(treeName,"%s%d",fTreeTPCSBaseName,serialNr);
tree = static_cast<TTree*>(iStream->CurrentFile()->Get(treeName));
+ if (fArrayTreeTPCS[i]) {
+ delete fArrayTreeTPCS[i];
+ fArrayTreeTPCS[i] = 0;
+ }
fArrayTreeTPCS[i] = tree;
+ sprintf(treeName,"TreeS%d_TRD",serialNr);
+ tree = static_cast<TTree*>(iStream->CurrentFile()->Get(treeName));
+ if (fArrayTreeTRDS[i]) {
+ delete fArrayTreeTRDS[i];
+ fArrayTreeTRDS[i] = 0;
+ }
+ fArrayTreeTRDS[i] = tree;
} else if (delta[i] != 0) {
Error("ConnectInputTrees","Only delta 0 or 1 is implemented");
return kFALSE;
return kTRUE;
}
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
Bool_t AliRunDigitizer::InitGlobal()
{
// called once before Digitize() is called, initialize digitizers and output
- if (!InitOutputGlobal()) return kFALSE;
- for (Int_t i=0;i<fNDigitizers; i++) {
- if (!fDigitizers[i]->Init()) return kFALSE;
- }
+ TList* subTasks = GetListOfTasks();
+ if (subTasks) {
+ subTasks->ForEach(AliDigitizer,Init)();
+ }
return kTRUE;
}
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
+void AliRunDigitizer::SetOutputFile(TString fn)
+{
+ // the output will be to separate file, not to the signal file
+ fOutputFileName = fn;
+ (static_cast<AliStream*>(fInputStreams->At(0)))->ChangeMode("READ");
+ InitOutputGlobal();
+}
+
+//_______________________________________________________________________
Bool_t AliRunDigitizer::InitOutputGlobal()
{
-// Creates the output file, called once by InitGlobal()
+// Creates the output file, called by InitEvent()
TString fn;
fn = fOutputDirName + '/' + fOutputFileName;
- fOutput = new TFile(fn,"recreate");
+ fOutput = new TFile(fn,"update");
if (GetDebug()>2) {
- cerr<<"file "<<fn.Data()<<" was opened"<<endl;
- cerr<<"fOutput = "<<fOutput<<endl;
+ cerr<<"AliRunDigitizer::InitOutputGlobal(): file "<<fn.Data()<<" was opened"<<endl;
}
if (fOutput) return kTRUE;
Error("InitOutputGlobal","Could not create output file.");
}
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
void AliRunDigitizer::InitEvent()
{
// Creates TreeDxx in the output file, called from Digitize() once for
if (GetDebug()>2)
cerr<<"AliRunDigitizer::InitEvent: fEvent = "<<fEvent<<endl;
+
+// if fOutputFileName was not given, write output to signal file
+ if (fOutputFileName == "") {
+ fOutput = (static_cast<AliStream*>(fInputStreams->At(0)))->CurrentFile();
+ }
fOutput->cd();
- char hname[30];
- sprintf(hname,"TreeD%d",fEvent);
- fTreeD = new TTree(hname,"Digits");
- fTreeD->Write(); // Do I have to write it here???
+ char treeName[30];
+ sprintf(treeName,"TreeD%d",fEvent);
+ fTreeD = static_cast<TTree*>(fOutput->Get(treeName));
+ if (!fTreeD) {
+ fTreeD = new TTree(treeName,"Digits");
+ fTreeD->Write(0,TObject::kOverwrite);
+ }
+
+// tree for ITS fast points
+ sprintf(treeName,"TreeR%d",fEvent);
+ fTreeR = static_cast<TTree*>(fOutput->Get(treeName));
+ if (!fTreeR) {
+ fTreeR = new TTree(treeName,"Reconstruction");
+ fTreeR->Write(0,TObject::kOverwrite);
+ }
+
+// special tree for TPC
+ sprintf(treeName,"%s%d",fTreeDTPCBaseName,fEvent);
+ fTreeDTPC = static_cast<TTree*>(fOutput->Get(treeName));
+ if (!fTreeDTPC) {
+ fTreeDTPC = new TTree(treeName,"TPC_Digits");
+ fTreeDTPC->Write(0,TObject::kOverwrite);
+ }
+
+// special tree for TRD
+ sprintf(treeName,"TreeD%d_TRD",fEvent);
+ fTreeDTRD = static_cast<TTree*>(fOutput->Get(treeName));
+ if (!fTreeDTRD) {
+ fTreeDTRD = new TTree(treeName,"TRD_Digits");
+ fTreeDTRD->Write(0,TObject::kOverwrite);
+ }
+
}
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
void AliRunDigitizer::FinishEvent()
{
// called at the end of loop over digitizers
+ Int_t i;
fOutput->cd();
if (fCopyTreesFromInput > -1) {
char treeName[20];
- Int_t i = fCopyTreesFromInput;
+ i = fCopyTreesFromInput;
sprintf(treeName,"TreeK%d",fCombination[i]);
- ((TFile*)fInputFiles->At(i))->Get(treeName)->Clone()->Write();
+ fInputFiles[i]->Get(treeName)->Clone()->Write();
sprintf(treeName,"TreeH%d",fCombination[i]);
- ((TFile*)fInputFiles->At(i))->Get(treeName)->Clone()->Write();
+ fInputFiles[i]->Get(treeName)->Clone()->Write();
}
fEvent++;
fNrOfEventsWritten++;
delete fTreeD;
fTreeD = 0;
}
+ if (fTreeR) {
+ delete fTreeR;
+ fTreeR = 0;
+ }
+ if (fTreeDTPC) {
+ delete fTreeDTPC;
+ fTreeDTPC = 0;
+ }
+ if (fTreeDTRD) {
+ delete fTreeDTRD;
+ fTreeDTRD = 0;
+ }
}
-////////////////////////////////////////////////////////////////////////
+
+//_______________________________________________________________________
void AliRunDigitizer::FinishGlobal()
{
// called at the end of Exec
// save unique objects to the output file
fOutput->cd();
- this->Write();
+ this->Write(0,TObject::kOverwrite);
if (fCopyTreesFromInput > -1) {
- ((TFile*)fInputFiles->At(fCopyTreesFromInput))->Get("TE")
- ->Clone()->Write();
+ fInputFiles[fCopyTreesFromInput]->Get("TE")->Clone()->Write();
gAlice->Write();
}
- fOutput->Close();
+ fOutput->Write();
}
-////////////////////////////////////////////////////////////////////////
-Int_t AliRunDigitizer::GetNParticles(Int_t event)
+//_______________________________________________________________________
+Int_t AliRunDigitizer::GetNParticles(Int_t event) const
{
// return number of particles in all input files for a given
// event (as numbered in the output file)
return sum;
}
-////////////////////////////////////////////////////////////////////////
-Int_t AliRunDigitizer::GetNParticles(Int_t event, Int_t input)
+//_______________________________________________________________________
+Int_t AliRunDigitizer::GetNParticles(Int_t /* event */, Int_t /* input */) const
{
// return number of particles in input file input for a given
// event (as numbered in this input file)
// return -1 if some error
+// Must be revised in the version with AliStream
+
+ return -1;
+
+/*
TFile *file = ConnectInputFile(input);
if (!file) {
Error("GetNParticles","Cannot open input file");
cerr<<"Nsecondary: "<<header->GetNsecondary()<<endl;
}
return header->GetNprimary() + header->GetNsecondary();
+*/
}
-////////////////////////////////////////////////////////////////////////
-Int_t* AliRunDigitizer::GetInputEventNumbers(Int_t event)
+//_______________________________________________________________________
+Int_t* AliRunDigitizer::GetInputEventNumbers(Int_t event) const
{
// return pointer to an int array with input event numbers which were
// merged in the output event event
// simplified for now, implement later
- Int_t a[MAXSTREAMSTOMERGE];
+ Int_t * a = new Int_t[kMaxStreamsToMerge];
for (Int_t i = 0; i < fNinputs; i++) {
a[i] = event;
}
return a;
}
-////////////////////////////////////////////////////////////////////////
-Int_t AliRunDigitizer::GetInputEventNumber(Int_t event, Int_t input)
+
+//_______________________________________________________________________
+Int_t AliRunDigitizer::GetInputEventNumber(Int_t event, Int_t /* input */) const
{
// return an event number of an eventInput from input file input
// which was merged to create output event event
// simplified for now, implement later
return event;
}
-////////////////////////////////////////////////////////////////////////
-TParticle* AliRunDigitizer::GetParticle(Int_t i, Int_t event)
+
+//_______________________________________________________________________
+TParticle* AliRunDigitizer::GetParticle(Int_t i, Int_t event) const
{
// return pointer to particle with index i (index with mask)
return GetParticle(i,input,GetInputEventNumber(event,input));
}
-////////////////////////////////////////////////////////////////////////
-TParticle* AliRunDigitizer::GetParticle(Int_t i, Int_t input, Int_t event)
+//_______________________________________________________________________
+TParticle* AliRunDigitizer::GetParticle(Int_t /* i */, Int_t /* input */,
+ Int_t /* event */) const
{
// return pointer to particle with index i in the input file input
// (index without mask)
// event is the event number in the file input
// return 0 i fit does not exist
+// Must be revised in the version with AliStream
+
+ return 0;
+/*
TFile *file = ConnectInputFile(input);
if (!file) {
Error("GetParticle","Cannot open input file");
if (bytesRead)
return particleBuffer;
return 0;
+*/
}
-////////////////////////////////////////////////////////////////////////
+//_______________________________________________________________________
+void AliRunDigitizer::ExecuteTask(Option_t* option)
+{
+// overwrite ExecuteTask to do Digitize only
+
+ if (!IsActive()) return;
+ Digitize(option);
+ fHasExecuted = kTRUE;
+ return;
+}
+
+//_______________________________________________________________________
+TString AliRunDigitizer::GetInputFileName(const Int_t input, const Int_t order) const
+{
+// returns file name of the order-th file in the input stream input
+// returns empty string if such file does not exist
+// first input stream is 0
+// first file in the input stream is 0
+ TString fileName("");
+ if (input >= fNinputs) return fileName;
+ AliStream * stream = static_cast<AliStream*>(fInputStreams->At(input));
+ if (order > stream->GetNInputFiles()) return fileName;
+ fileName = stream->GetFileName(order);
+ return fileName;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff