/* $Id$ */
-//----------------------------------------------------------------------
+#include <TROOT.h>
+#include <TFile.h>
+#include <TObjString.h>
+
+#include "AliLog.h"
+#include "AliLoader.h"
+#include "AliRun.h"
+#include "AliStream.h"
+
+////////////////////////////////////////////////////////////////////////
+//
// AliStream.cxx
+//
// - store file names associated with a given stream
// - open and close files
// - return serial event number of the next event in the stream
// and the TFile pointer for a proper file
-//----------------------------------------------------------------------
-
-#include <Riostream.h>
-
-#include "TFile.h"
-#include "TObjString.h"
-#include "TROOT.h"
-#include "TTree.h"
-
-#include "AliRun.h"
-#include "AliStream.h"
+// Author: Jiri Chudoba (CERN), 2001
+//
+////////////////////////////////////////////////////////////////////////
ClassImp(AliStream)
-//_______________________________________________________________________
AliStream::AliStream():
- fLastEventSerialNr(0),
+ fLastEventSerialNr(-1),
fLastEventNr(0),
- fCurrentFileIndex(0),
+ fCurrentFileIndex(-1),
fEvents(0),
fMode(0),
- fCurrentFile(0),
- fFileNames(0)
+ fFileNames(0x0),
+ fEventFolderName(0)
{
- //
// root requires default ctor, where no new objects can be created
// do not use this ctor, it is supplied only for root needs
- //
}
-
//_______________________________________________________________________
-AliStream::AliStream(Option_t *option):
+
+AliStream::AliStream(const char* foldername,Option_t *option):
fLastEventSerialNr(-1),
fLastEventNr(0),
fCurrentFileIndex(-1),
fEvents(0),
fMode(option),
- fCurrentFile(0),
- fFileNames(new TObjArray(1))
+ fFileNames(new TObjArray(1)),
+ fEventFolderName(foldername)
{
- //
- // Default ctor
- //
+// ctor
}
-
//_______________________________________________________________________
-AliStream::AliStream(const AliStream& str):
- TNamed(str),
- fLastEventSerialNr(0),
+
+AliStream::AliStream(const AliStream &as):
+ TNamed(as),
+ fLastEventSerialNr(-1),
fLastEventNr(0),
- fCurrentFileIndex(0),
+ fCurrentFileIndex(-1),
fEvents(0),
fMode(0),
- fCurrentFile(0),
- fFileNames(0)
+ fFileNames(0x0),
+ fEventFolderName(" ")
{
//
// Copy ctor
//
- str.Copy(*this);
+ as.Copy(*this);
}
-
//_______________________________________________________________________
-void AliStream::Copy(AliStream& ) const
-{
- Fatal("Copy","Not implemented\n");
-}
-//_______________________________________________________________________
AliStream::~AliStream()
{
// default dtor
- if (fFileNames) {
- fFileNames->Delete();
- delete fFileNames;
- }
+ delete AliRunLoader::GetRunLoader(fEventFolderName); //clear the eventuall session
+ if (fFileNames) delete fFileNames;
}
+//_______________________________________________________________________
+void AliStream::Copy(TObject &) const
+{
+ //
+ // Copy function
+ //
+ AliFatal("Not implemented!");
+}
//_______________________________________________________________________
+
void AliStream::AddFile(const char *fileName)
{
// stores the name of the file
TObjString *name = new TObjString(fileName);
fFileNames->Add(name);
}
-
//_______________________________________________________________________
-Bool_t AliStream::NextEventInStream(Int_t &serialNr)
+
+Bool_t AliStream::NextEventInStream()
{
// returns kFALSE if no more events
// returns kTRUE and the serial nr of the next event
// no files given:
if (fFileNames->GetLast() < 0) return kFALSE;
-
- if (!fCurrentFile) {
- if (!OpenNextFile()) return kFALSE;
- }
- if (fLastEventSerialNr+1 >= fEvents) {
- if (!OpenNextFile()) return kFALSE;
- }
-
- fLastEventSerialNr++;
-// in some cases the serial number does not start from 0, find the
-// number of the next event
- char name[20];
- sprintf(name, "TreeS%d", ++fLastEventNr);
- while (!fCurrentFile->Get(name) && fLastEventNr < fEvents)
- sprintf(name, "TreeS%d", ++fLastEventNr);
- serialNr = fLastEventNr;
+ AliRunLoader* currentloader = AliRunLoader::GetRunLoader(fEventFolderName);
+ if (currentloader == 0x0)
+ {
+ AliDebug(1, Form(
+ "Can not get RL from folder named %s. Attempting to open next file",
+ fEventFolderName.Data()));
+ Int_t res = OpenNextFile();
+ if ( res == 0) return kFALSE;
+ currentloader = AliRunLoader::GetRunLoader(fEventFolderName);
+ }
+ if (fLastEventSerialNr+1 >= fEvents)
+ {
+ if (!OpenNextFile()) return kFALSE;
+ }
+ AliDebug(1, Form("Trying to get event %d",fLastEventSerialNr+1));
+ currentloader->GetEvent(++fLastEventSerialNr);
return kTRUE;
}
-
//_______________________________________________________________________
+
void AliStream::ChangeMode(Option_t* option)
{
// set the mode to READ or UPDATE, reopen file with the new mode
// only change from UPDATE to READ have sense in the current scheme,
// other changes are possible but not usefull
+
fMode = option;
- if (fCurrentFile) {
- fCurrentFile->Close();
+ AliRunLoader* currentloader = AliRunLoader::GetRunLoader(fEventFolderName);
+ if (currentloader) {
+ delete currentloader;
fCurrentFileIndex--;
OpenNextFile();
}
}
-
//_______________________________________________________________________
+
Bool_t AliStream::OpenNextFile()
{
//
- // Open the next file in the series
+ // Opens next file in the list
//
if (++fCurrentFileIndex > fFileNames->GetLast()) {
- cerr<<"No more files in the stream"<<endl;
+ AliInfo("No more files in the stream") ;
return kFALSE;
}
- const char * filename =
- static_cast<TObjString*>(fFileNames->At(fCurrentFileIndex))->GetName();
+ const char* filename = static_cast<TObjString*>(fFileNames->At(fCurrentFileIndex))->GetName();
// check if the file was already opened by some other code
- TFile *f = dynamic_cast<TFile*>(gROOT->GetListOfFiles()->FindObject(filename));
+ TFile *f = (TFile *)(gROOT->GetListOfFiles()->FindObject(filename));
if (f) f->Close();
- if (fCurrentFile) {
- if (fCurrentFile->IsOpen()) {
- fCurrentFile->Close();
- }
- }
+ AliRunLoader* currentloader = AliRunLoader::GetRunLoader(fEventFolderName);
+
+ if (currentloader)
+ {
+ delete currentloader;
+ }
+
+ currentloader = AliRunLoader::Open(filename,fEventFolderName,fMode);
+
- fCurrentFile = TFile::Open(filename,fMode.Data());
- if (!fCurrentFile) {
+ if (currentloader == 0x0)
+ {
// cannot open file specified on input. Do not skip it silently.
- cerr<<"Cannot open file "<<filename<<endl;
+ AliError("Cannot open session ");
return kFALSE;
- }
+ }
+
// find nr of events in the given file
- TTree * te = dynamic_cast<TTree *>(fCurrentFile->Get("TE"));
- if (!te) {
- Error("OpenNextFile", "input file does not contain TE");
- return kFALSE;
- }
- fEvents = static_cast<Int_t>(te->GetEntries());
+
+ if ( AliLoader::TestFileOption(fMode) )//tests if file is opened in read or update mode
+ {
+ Int_t res = currentloader->LoadHeader();
+ if (res)
+ {
+ AliError("Problems with loading header");
+ return kFALSE;
+ }
+ fEvents = static_cast<Int_t>(currentloader->TreeE()->GetEntries());
+ }
+ else
+ {
+ //if it is new, create or recreate there is no chance to find header in file
+ fEvents = 0;
+ }
+
fLastEventSerialNr = -1;
- fLastEventNr = -1;
return kTRUE;
}
-
//_______________________________________________________________________
+
Bool_t AliStream::ImportgAlice()
{
//
- // Import AliRun object pointed from gAlice
+ // Imports gAlice object from file
//
if (fFileNames->GetLast() < 0) return kFALSE;
- if (!fCurrentFile) {
+
+ AliRunLoader* currentloader = AliRunLoader::GetRunLoader(fEventFolderName);
+ if (!currentloader)
+ {
if (!OpenNextFile()) return kFALSE;
- }
- gAlice = dynamic_cast<AliRun*>(fCurrentFile->Get("gAlice"));
+ currentloader = AliRunLoader::GetRunLoader(fEventFolderName);
+ }
+ currentloader->LoadgAlice();
+ gAlice = currentloader->GetAliRun();
if (!gAlice) return kFALSE;
return kTRUE;
}
//_______________________________________________________________________
-TString AliStream::GetFileName(const Int_t order) const
+TString AliStream::GetFileName(Int_t order) const
{
// returns name of the order-th file
// returns empty string if such file does not exist
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff