[u/mrichter/AliRoot.git] / PWG4 / macros / anaPartCorrJetAn.C

/* $Id:  $ */

//--------------------------------------------------
// Example macro to do analysis with the 
// analysis classes in PWG4PartCorr
// and JETAN at the same time
// Can be executed with Root and AliRoot
//
// Pay attention to the options and definitions
// set in the lines below
//
//  Author : Gustavo Conesa Balbastre (INFN-LNF)
//
//-------------------------------------------------
enum anaModes {mLocal, mLocalCAF,mPROOF,mGRID};
//mLocal: Analyze locally files in your computer
//mLocalCAF: Analyze locally CAF files
//mPROOF: Analyze CAF files with PROOF

//---------------------------------------------------------------------------
//Settings to read locally several files, only for "mLocal" mode
//The different values are default, they can be set with environmental 
//variables: INDIR, PATTERN, NEVENT, respectivelly
char * kInDir = "/user/data/files"; 
char * kPattern = ""; // Data are in files kInDir/kPattern+i
Int_t kEvent = 1; // Number of files
//---------------------------------------------------------------------------
//Collection file for grid analysis
char * kXML = "collection.xml";
//---------------------------------------------------------------------------
//Scale histograms from file. Change to kTRUE when xsection file exists
//Put name of file containing xsection 
//Put number of events per ESD file
//This is an specific case for normalization of Pythia files.
const Bool_t kGetXSectionFromFileAndScale = kFALSE ;
const char * kXSFileName = "pyxsec.root";
const Int_t kNumberOfEventsPerFile = 100; 
//---------------------------------------------------------------------------

const Bool_t kMC = kTRUE; //With real data kMC = kFALSE
const TString kInputData = "ESD";
void anaPartCorrJetAn(Int_t mode=mLocal, TString configName = "ConfigAnalysisGammaJetFinderCorrelation")
{
  // Main

  //--------------------------------------------------------------------
  // Load analysis libraries
  // Look at the method below, 
  // change whatever you need for your analysis case
  // ------------------------------------------------------------------
  LoadLibraries(mode) ;
  
  //-------------------------------------------------------------------------------------------------
  //Create chain from ESD and from cross sections files, look below for options.
  //------------------------------------------------------------------------------------------------- 
  TChain *chain   = new TChain("esdTree") ;
  TChain * chainxs = new TChain("Xsection") ;
  CreateChain(mode, chain, chainxs);  

  if(chain){
    AliLog::SetGlobalLogLevel(AliLog::kError);//Minimum prints on screen
    
    //--------------------------------------
    // Make the analysis manager
    //-------------------------------------
    AliAnalysisManager *mgr  = new AliAnalysisManager("Manager", "Manager");
    // MC handler
    if(kMC){
      AliMCEventHandler* mcHandler = new AliMCEventHandler();
      mcHandler->SetReadTR(kFALSE);//Do not search TrackRef file
      mgr->SetMCtruthEventHandler(mcHandler);
    }

    // AOD output handler
    AliAODHandler* aodoutHandler   = new AliAODHandler();
    aodoutHandler->SetOutputFileName("aod.root");
    //aodoutHandler->SetCreateNonStandardAOD();
    mgr->SetOutputEventHandler(aodoutHandler);
    
    //input
    if(kInputData == "ESD"){
      // ESD handler
      AliESDInputHandler *esdHandler = new AliESDInputHandler();
      mgr->SetInputEventHandler(esdHandler);
    }
    if(kInputData == "AOD"){
      // AOD handler
      AliAODInputHandler *aodHandler = new AliAODInputHandler();
      mgr->SetInputEventHandler(aodHandler);
    }

   //mgr->SetDebugLevel(-1); // For debugging, uncomment for lots of messages

    //-------------------------------------------------------------------------
    //Define task, put here any other task that you want to use.
    //-------------------------------------------------------------------------
	
    AliAnalysisTaskJets *jetana = new AliAnalysisTaskJets("JetAnalysis");
    //jetana->SetDebugLevel(-1);
    mgr->AddTask(jetana);
	
    AliAnalysisTaskParticleCorrelation * taskpwg4 = new AliAnalysisTaskParticleCorrelation ("Particle");
    taskpwg4->SetConfigFileName(configName); //Default name is ConfigAnalysis
	
    mgr->AddTask(taskpwg4);
    
    // Create containers for input/output
    AliAnalysisDataContainer *cinput1 = mgr->GetCommonInputContainer();
    AliAnalysisDataContainer *coutput1 = mgr->GetCommonOutputContainer();
    AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("corrhistos", TList::Class(),
							      AliAnalysisManager::kOutputContainer, "histos.root");
    
    AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("jethistos", TList::Class(),
							      AliAnalysisManager::kOutputContainer, "histos.root");
	
    mgr->ConnectInput  (taskpwg4,     0, cinput1);
    mgr->ConnectOutput (taskpwg4,     0, coutput1 );
    mgr->ConnectOutput (taskpwg4,     1, coutput2 );
	
    mgr->ConnectInput  (jetana,     0, cinput1);
    mgr->ConnectOutput (jetana,     0, coutput1 );
    mgr->ConnectOutput (jetana,     1, coutput3 );

    //------------------------  
    //Scaling task
    //-----------------------
    Int_t nfiles = chainxs->GetEntries();
    //cout<<"Get? "<<kGetXSectionFromFileAndScale<<" nfiles "<<nfiles<<endl;
    if(kGetXSectionFromFileAndScale && nfiles > 0){
      //cout<<"Init AnaScale"<<endl;
      //Get the cross section
      Double_t xsection=0; 
      Float_t ntrials = 0;
      GetAverageXsection(chainxs, xsection, ntrials);
      
      AliAnaScale * scale = new AliAnaScale("scale") ;
      scale->Set(xsection/ntrials/kNumberOfEventsPerFile/nfiles) ;
      scale->MakeSumw2(kFALSE);
      scale->SetDebugLevel(2);
      mgr->AddTask(scale);
      
      AliAnalysisDataContainer *coutput4 = mgr->CreateContainer("corrhistosscaled", TList::Class(),
								AliAnalysisManager::kOutputContainer, "histosscaled.root");
      mgr->ConnectInput  (scale,     0, coutput2);
      mgr->ConnectOutput (scale,     0, coutput4 );
	  
      AliAnaScale * scalejet = new AliAnaScale("scalejet") ;
      scalejet->Set(xsection/ntrials/kNumberOfEventsPerFile/nfiles) ;
      scalejet->MakeSumw2(kFALSE);
      //scalejet->SetDebugLevel(2);
      mgr->AddTask(scalejet);
      
      AliAnalysisDataContainer *coutput5 = mgr->CreateContainer("jethistosscaled", TList::Class(),
								AliAnalysisManager::kOutputContainer, "histosscaled.root");
      mgr->ConnectInput  (scalejet,     0, coutput3);
      mgr->ConnectOutput (scalejet,     0, coutput5 );	  
    }
    
    //-----------------------
    // Run the analysis
    //-----------------------    
    TString smode = "";
    if (mode==mLocal || mode == mLocalCAF) 
      smode = "local";
    else if (mode==mPROOF) 
      smode = "proof";
    else if (mode==mGRID) 
      smode = "local";
    
    mgr->InitAnalysis();
    mgr->PrintStatus();
    mgr->StartAnalysis(smode.Data(),chain);

cout <<" Analysis ended sucessfully "<< endl ;

  }
  else cout << "Chain was not produced ! "<<endl;
  
}

void  LoadLibraries(const anaModes mode) {
  
  //--------------------------------------
  // Load the needed libraries most of them already loaded by aliroot
  //--------------------------------------
  gSystem->Load("libTree.so");
  gSystem->Load("libGeom.so");
  gSystem->Load("libVMC.so");
  gSystem->Load("libXMLIO.so");
  
  //----------------------------------------------------------
  // >>>>>>>>>>> Local mode <<<<<<<<<<<<<< 
  //----------------------------------------------------------
  if (mode==mLocal || mode == mLocalCAF || mode == mGRID) {
    //--------------------------------------------------------
    // If you want to use already compiled libraries 
    // in the aliroot distribution
    //--------------------------------------------------------
    //gSystem->Load("libSTEERBase");
    //gSystem->Load("libESD");
    //gSystem->Load("libAOD");
    //gSystem->Load("libANALYSIS");
    //gSystem->Load("libANALYSISalice");
    //gSystem->Load("libJETAN");
    //gSystem->Load("libPHOSUtils");
    //gSystem->Load("libPWG4PartCorrBase");
    //gSystem->Load("libPWG4PartCorrDep");
	
    //--------------------------------------------------------
    //If you want to use root and par files from aliroot
    //--------------------------------------------------------  
    SetupPar("STEERBase");
    SetupPar("ESD");
    SetupPar("AOD");
    SetupPar("ANALYSIS");
    SetupPar("ANALYSISalice");
    SetupPar("JETAN");
    //If your analysis needs PHOS geometry uncomment following lines
//      SetupPar("PHOSUtils");
//      //Create Geometry
//    TGeoManager::Import("geometry.root") ; //need file "geometry.root" in local dir!!!!
    SetupPar("PWG4PartCorrBase");
    SetupPar("PWG4PartCorrDep");
    
  }

  //---------------------------------------------------------
  // <<<<<<<<<< PROOF mode >>>>>>>>>>>>
  //---------------------------------------------------------
  else if (mode==mPROOF) {
    //
    // Connect to proof
    // Put appropriate username here
    // TProof::Reset("proof://mgheata@lxb6046.cern.ch"); 
    TProof::Open("proof://mgheata@lxb6046.cern.ch");
    
    //    gProof->ClearPackages();
    //    gProof->ClearPackage("ESD");
    //    gProof->ClearPackage("AOD");
    //    gProof->ClearPackage("ANALYSIS"); 
    //    gProof->ClearPackage("JETAN");  
    //    gProof->ClearPackage("PWG4PartCorrDep");
    //    gProof->ClearPackage("PWG4PartCorrBase");
    
    // Enable the STEERBase Package
    gProof->UploadPackage("STEERBase.par");
    gProof->EnablePackage("STEERBase");
    // Enable the ESD Package
    gProof->UploadPackage("ESD.par");
    gProof->EnablePackage("ESD");
    // Enable the AOD Package
    gProof->UploadPackage("AOD.par");
    gProof->EnablePackage("AOD");
    // Enable the Analysis Package
    gProof->UploadPackage("ANALYSIS.par");
    gProof->EnablePackage("ANALYSIS");
    // Enable JETAN
    gProof->UploadPackage("JETAN.par");
    gProof->EnablePackage("JETAN");
    // Enable PHOSUtils
    //gProof->UploadPackage("PHOSUtils.par");
    //gProof->EnablePackage("PHOSUtils");
    // Enable PartCorr analysis
    gProof->UploadPackage("PWG4PartCorrBase.par");
    gProof->EnablePackage("PWG4PartCorrBase");
    gProof->UploadPackage("PWG4PartCorrDep.par");
    gProof->EnablePackage("PWG4PartCorrDep");
    //
    gProof->ShowEnabledPackages();
  }  
  
}

void SetupPar(char* pararchivename)
{
  //Load par files, create analysis libraries
  //For testing, if par file already decompressed and modified
  //classes then do not decompress.
 
  TString cdir(Form("%s", gSystem->WorkingDirectory() )) ; 
  TString parpar(Form("%s.par", pararchivename)) ; 
  if ( gSystem->AccessPathName(parpar.Data()) ) {
    gSystem->ChangeDirectory(gSystem->Getenv("ALICE_ROOT")) ;
    TString processline(Form(".! make %s", parpar.Data())) ; 
    gROOT->ProcessLine(processline.Data()) ;
    gSystem->ChangeDirectory(cdir) ; 
    processline = Form(".! mv $ALICE_ROOT/%s .", parpar.Data()) ;
    gROOT->ProcessLine(processline.Data()) ;
  } 
  if ( gSystem->AccessPathName(pararchivename) ) {  
    TString processline = Form(".! tar xvzf %s",parpar.Data()) ;
    gROOT->ProcessLine(processline.Data());
  }
  
  TString ocwd = gSystem->WorkingDirectory();
  gSystem->ChangeDirectory(pararchivename);
  
  // check for BUILD.sh and execute
  if (!gSystem->AccessPathName("PROOF-INF/BUILD.sh")) {
    printf("*******************************\n");
    printf("*** Building PAR archive    ***\n");
    cout<<pararchivename<<endl;
    printf("*******************************\n");
    
    if (gSystem->Exec("PROOF-INF/BUILD.sh")) {
      Error("runProcess","Cannot Build the PAR Archive! - Abort!");
      return -1;
    }
  }
  // check for SETUP.C and execute
  if (!gSystem->AccessPathName("PROOF-INF/SETUP.C")) {
    printf("*******************************\n");
    printf("*** Setup PAR archive       ***\n");
    cout<<pararchivename<<endl;
    printf("*******************************\n");
    gROOT->Macro("PROOF-INF/SETUP.C");
  }
  
  gSystem->ChangeDirectory(ocwd.Data());
  printf("Current dir: %s\n", ocwd.Data());
}


void CreateChain(const anaModes mode, TChain * chain, TChain * chainxs){
  //Fills chain with data
  TString ocwd = gSystem->WorkingDirectory();
  
  //-----------------------------------------------------------
  //Analysis of CAF data locally and with PROOF
  //-----------------------------------------------------------
  if(mode ==mPROOF || mode ==mLocalCAF){
    // Chain from CAF
    gROOT->LoadMacro("$ALICE_ROOT/PWG0/CreateESDChain.C");
    // The second parameter is the number of input files in the chain
    chain = CreateESDChain("ESD12001.txt", 5);  
  }
  
  //---------------------------------------
  //Local files analysis
  //---------------------------------------
  else if(mode == mLocal){    
    //If you want to add several ESD files sitting in a common directory INDIR
    //Specify as environmental variables the directory (INDIR), the number of files 
    //to analyze (NEVENT) and the pattern name of the directories with files (PATTERN)

    if(gSystem->Getenv("INDIR"))  
      kInDir = gSystem->Getenv("INDIR") ; 
    else cout<<"INDIR not set, use default: "<<kInDir<<endl;	
    
    if(gSystem->Getenv("PATTERN"))   
      kPattern = gSystem->Getenv("PATTERN") ; 
    else  cout<<"PATTERN not set, use default: "<<kPattern<<endl;
    
    if(gSystem->Getenv("NEVENT"))
      kEvent = atoi(gSystem->Getenv("NEVENT")) ;
    else cout<<"NEVENT not set, use default: "<<kEvent<<endl;
    
    //Check if env variables are set and are correct
    if ( kInDir  && kEvent) {
      printf("Get %d files from directory %s\n",kEvent,kInDir);
      if ( ! gSystem->cd(kInDir) ) {//check if ESDs directory exist
	printf("%s does not exist\n", kInDir) ;
	return ;
      }
      cout<<"INDIR : "<<kInDir<<endl;
      cout<<"NEVENT : "<<kEvent<<endl;
      cout<<"PATTERN: " <<kPattern<<endl;
      
      //Loop on ESD files, add them to chain
      Int_t event =0;
      Int_t skipped=0 ; 
      char file[120] ;
      char filexs[120] ;
      
      for (event = 0 ; event < kEvent ; event++) {
	sprintf(file, "%s/%s%d/AliESDs.root", kInDir,kPattern,event) ; 
	sprintf(filexs, "%s/%s%d/%s", kInDir,kPattern,event,kXSFileName) ; 
	TFile * fESD = 0 ; 
	//Check if file exists and add it, if not skip it
	if ( fESD = TFile::Open(file)) {
	  if ( fESD->Get("esdTree") ) { 
	    printf("++++ Adding %s\n", file) ;
	    chain->AddFile(file);
	    chainxs->Add(filexs) ; 
	  }
	}
	else { 
	  printf("---- Skipping %s\n", file) ;
	  skipped++ ;
	}
      }
      printf("number of entries # %lld, skipped %d\n", chain->GetEntries(), skipped*100) ; 	
    }
    else {
      TString input = "AliESDs.root" ;
      cout<<">>>>>> No list added, take a single file <<<<<<<<< "<<input<<endl;
      chain->AddFile(input);
    }
    
  }// local files analysis
  
  //------------------------------
  //GRID xml files
  //-----------------------------
  else if(mode == mGRID){
    //Get colection file. It is specified by the environmental
    //variable XML

    if(gSystem->Getenv("XML") )
      kXML = gSystem->Getenv("XML");
    else
      sprintf(kXML, "collection.xml") ; 
    
    if (!TFile::Open(kXML)) {
      printf("No collection file with name -- %s -- was found\n",kXML);
      return ;
    }
    else cout<<"XML file "<<kXML<<endl;

    //Load necessary libraries and connect to the GRID
    gSystem->Load("libNetx.so") ; 
    gSystem->Load("libRAliEn.so"); 
    TGrid::Connect("alien://") ;

    //Feed Grid with collection file
    //TGridCollection * collection =  (TGridCollection*)gROOT->ProcessLine(Form("TAlienCollection::Open(\"%s\", 0)", kXML));
    TGridCollection * collection = (TGridCollection*) TAlienCollection::Open(kXML);
    if (! collection) {
      AliError(Form("%s not found", kXML)) ; 
      return kFALSE ; 
    }
    TGridResult* result = collection->GetGridResult("",0 ,0);
   
    // Makes the ESD chain 
    printf("*** Getting the Chain       ***\n");
    for (Int_t index = 0; index < result->GetEntries(); index++) {
      TString alienURL = result->GetKey(index, "turl") ; 
      cout << "================== " << alienURL << endl ; 
      chain->Add(alienURL) ; 
      alienURL.ReplaceAll("AliESDs.root",kXSFileName);
      chainxs->Add(alienURL) ; 
    }
  }// xml analysis
  
  gSystem->ChangeDirectory(ocwd.Data());
}

//________________________________________________
void GetAverageXsection(TTree * tree, Double_t & xs, Float_t & ntr)
{
  // Read the PYTHIA statistics from the file pyxsec.root created by
  // the function WriteXsection():
  // integrated cross section (xsection) and
  // the  number of Pyevent() calls (ntrials)
  // and calculate the weight per one event xsection/ntrials
  // The spectrum calculated by a user should be
  // multiplied by this weight, something like this:
  // TH1F *userSpectrum ... // book and fill the spectrum
  // userSpectrum->Scale(weight)
  //
  // Yuri Kharlov 19 June 2007
  // Gustavo Conesa 15 April 2008
  Double_t xsection = 0;
  UInt_t    ntrials = 0;
  xs = 0;
  ntr = 0;
  
  Int_t nfiles =  tree->GetEntries()  ;
  if (tree && nfiles > 0) {
    tree->SetBranchAddress("xsection",&xsection);
    tree->SetBranchAddress("ntrials",&ntrials);
    for(Int_t i = 0; i < nfiles; i++){
      tree->GetEntry(i);
      xs += xsection ;
      ntr += ntrials ;
      cout << "xsection " <<xsection<<" ntrials "<<ntrials<<endl; 
    }
    
    xs =   xs /  nfiles;
    ntr =  ntr / nfiles;
    cout << "-----------------------------------------------------------------"<<endl;
    cout << "Average of "<< nfiles<<" files: xsection " <<xs<<" ntrials "<<ntr<<endl; 
    cout << "-----------------------------------------------------------------"<<endl;
  } 
  else cout << " >>>> Empty tree !!!! <<<<< "<<endl;
  
}
Commit	Line	Data
76518957	1	/* $Id: $ */
	2
	3	//--------------------------------------------------
	4	// Example macro to do analysis with the
	5	// analysis classes in PWG4PartCorr
	6	// and JETAN at the same time
	7	// Can be executed with Root and AliRoot
	8	//
	9	// Pay attention to the options and definitions
	10	// set in the lines below
	11	//
	12	// Author : Gustavo Conesa Balbastre (INFN-LNF)
	13	//
	14	//-------------------------------------------------
	15	enum anaModes {mLocal, mLocalCAF,mPROOF,mGRID};
	16	//mLocal: Analyze locally files in your computer
	17	//mLocalCAF: Analyze locally CAF files
	18	//mPROOF: Analyze CAF files with PROOF
	19
	20	//---------------------------------------------------------------------------
	21	//Settings to read locally several files, only for "mLocal" mode
	22	//The different values are default, they can be set with environmental
	23	//variables: INDIR, PATTERN, NEVENT, respectivelly
3e0577a2	24	char * kInDir = "/user/data/files";
3e0577a2	25	char * kPattern = ""; // Data are in files kInDir/kPattern+i
76518957	26	Int_t kEvent = 1; // Number of files
	27	//---------------------------------------------------------------------------
	28	//Collection file for grid analysis
	29	char * kXML = "collection.xml";
	30	//---------------------------------------------------------------------------
	31	//Scale histograms from file. Change to kTRUE when xsection file exists
	32	//Put name of file containing xsection
	33	//Put number of events per ESD file
	34	//This is an specific case for normalization of Pythia files.
3e0577a2	35	const Bool_t kGetXSectionFromFileAndScale = kFALSE ;
76518957	36	const char * kXSFileName = "pyxsec.root";
	37	const Int_t kNumberOfEventsPerFile = 100;
	38	//---------------------------------------------------------------------------
	39
	40	const Bool_t kMC = kTRUE; //With real data kMC = kFALSE
	41	const TString kInputData = "ESD";
3e0577a2	42	void anaPartCorrJetAn(Int_t mode=mLocal, TString configName = "ConfigAnalysisGammaJetFinderCorrelation")
76518957	43	{
	44	// Main
	45
	46	//--------------------------------------------------------------------
	47	// Load analysis libraries
	48	// Look at the method below,
	49	// change whatever you need for your analysis case
	50	// ------------------------------------------------------------------
	51	LoadLibraries(mode) ;
	52
	53	//-------------------------------------------------------------------------------------------------
	54	//Create chain from ESD and from cross sections files, look below for options.
	55	//-------------------------------------------------------------------------------------------------
	56	TChain *chain = new TChain("esdTree") ;
	57	TChain * chainxs = new TChain("Xsection") ;
	58	CreateChain(mode, chain, chainxs);
	59
	60	if(chain){
	61	AliLog::SetGlobalLogLevel(AliLog::kError);//Minimum prints on screen
	62
	63	//--------------------------------------
	64	// Make the analysis manager
	65	//-------------------------------------
	66	AliAnalysisManager *mgr = new AliAnalysisManager("Manager", "Manager");
	67	// MC handler
	68	if(kMC){
	69	AliMCEventHandler* mcHandler = new AliMCEventHandler();
	70	mcHandler->SetReadTR(kFALSE);//Do not search TrackRef file
	71	mgr->SetMCtruthEventHandler(mcHandler);
	72	}
	73
	74	// AOD output handler
	75	AliAODHandler* aodoutHandler = new AliAODHandler();
	76	aodoutHandler->SetOutputFileName("aod.root");
	77	//aodoutHandler->SetCreateNonStandardAOD();
	78	mgr->SetOutputEventHandler(aodoutHandler);
	79
	80	//input
	81	if(kInputData == "ESD"){
	82	// ESD handler
	83	AliESDInputHandler *esdHandler = new AliESDInputHandler();
	84	mgr->SetInputEventHandler(esdHandler);
	85	}
	86	if(kInputData == "AOD"){
	87	// AOD handler
	88	AliAODInputHandler *aodHandler = new AliAODInputHandler();
	89	mgr->SetInputEventHandler(aodHandler);
	90	}
	91
3e0577a2	92	//mgr->SetDebugLevel(-1); // For debugging, uncomment for lots of messages
76518957	93
	94	//-------------------------------------------------------------------------
	95	//Define task, put here any other task that you want to use.
	96	//-------------------------------------------------------------------------
	97
3e0577a2	98	AliAnalysisTaskJets *jetana = new AliAnalysisTaskJets("JetAnalysis");
3e0577a2	99	//jetana->SetDebugLevel(-1);
76518957	100	mgr->AddTask(jetana);
	101
	102	AliAnalysisTaskParticleCorrelation * taskpwg4 = new AliAnalysisTaskParticleCorrelation ("Particle");
	103	taskpwg4->SetConfigFileName(configName); //Default name is ConfigAnalysis
	104
	105	mgr->AddTask(taskpwg4);
	106
	107	// Create containers for input/output
8a546c82	108	AliAnalysisDataContainer *cinput1 = mgr->GetCommonInputContainer();
8a546c82	109	AliAnalysisDataContainer *coutput1 = mgr->GetCommonOutputContainer();
76518957	110	AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("corrhistos", TList::Class(),
	111	AliAnalysisManager::kOutputContainer, "histos.root");
	112
	113	AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("jethistos", TList::Class(),
	114	AliAnalysisManager::kOutputContainer, "histos.root");
	115
	116	mgr->ConnectInput (taskpwg4, 0, cinput1);
	117	mgr->ConnectOutput (taskpwg4, 0, coutput1 );
	118	mgr->ConnectOutput (taskpwg4, 1, coutput2 );
	119
3e0577a2	120	mgr->ConnectInput (jetana, 0, cinput1);
3e0577a2	121	mgr->ConnectOutput (jetana, 0, coutput1 );
76518957	122	mgr->ConnectOutput (jetana, 1, coutput3 );
	123
	124	//------------------------
	125	//Scaling task
	126	//-----------------------
	127	Int_t nfiles = chainxs->GetEntries();
	128	//cout<<"Get? "<<kGetXSectionFromFileAndScale<<" nfiles "<<nfiles<<endl;
	129	if(kGetXSectionFromFileAndScale && nfiles > 0){
	130	//cout<<"Init AnaScale"<<endl;
	131	//Get the cross section
	132	Double_t xsection=0;
	133	Float_t ntrials = 0;
	134	GetAverageXsection(chainxs, xsection, ntrials);
	135
	136	AliAnaScale * scale = new AliAnaScale("scale") ;
	137	scale->Set(xsection/ntrials/kNumberOfEventsPerFile/nfiles) ;
	138	scale->MakeSumw2(kFALSE);
	139	scale->SetDebugLevel(2);
	140	mgr->AddTask(scale);
	141
	142	AliAnalysisDataContainer *coutput4 = mgr->CreateContainer("corrhistosscaled", TList::Class(),
	143	AliAnalysisManager::kOutputContainer, "histosscaled.root");
	144	mgr->ConnectInput (scale, 0, coutput2);
	145	mgr->ConnectOutput (scale, 0, coutput4 );
	146
3e0577a2	147	AliAnaScale * scalejet = new AliAnaScale("scalejet") ;
76518957	148	scalejet->Set(xsection/ntrials/kNumberOfEventsPerFile/nfiles) ;
76518957	149	scalejet->MakeSumw2(kFALSE);
3e0577a2	150	//scalejet->SetDebugLevel(2);
76518957	151	mgr->AddTask(scalejet);
	152
	153	AliAnalysisDataContainer *coutput5 = mgr->CreateContainer("jethistosscaled", TList::Class(),
	154	AliAnalysisManager::kOutputContainer, "histosscaled.root");
	155	mgr->ConnectInput (scalejet, 0, coutput3);
	156	mgr->ConnectOutput (scalejet, 0, coutput5 );
	157	}
	158
	159	//-----------------------
	160	// Run the analysis
	161	//-----------------------
	162	TString smode = "";
	163	if (mode==mLocal \|\| mode == mLocalCAF)
	164	smode = "local";
	165	else if (mode==mPROOF)
	166	smode = "proof";
	167	else if (mode==mGRID)
29d1ef1d	168	smode = "local";
76518957	169
	170	mgr->InitAnalysis();
	171	mgr->PrintStatus();
	172	mgr->StartAnalysis(smode.Data(),chain);
	173
	174	cout <<" Analysis ended sucessfully "<< endl ;
	175
	176	}
	177	else cout << "Chain was not produced ! "<<endl;
	178
	179	}
	180
	181	void LoadLibraries(const anaModes mode) {
	182
	183	//--------------------------------------
	184	// Load the needed libraries most of them already loaded by aliroot
	185	//--------------------------------------
	186	gSystem->Load("libTree.so");
	187	gSystem->Load("libGeom.so");
	188	gSystem->Load("libVMC.so");
	189	gSystem->Load("libXMLIO.so");
	190
	191	//----------------------------------------------------------
	192	// >>>>>>>>>>> Local mode <<<<<<<<<<<<<<
	193	//----------------------------------------------------------
	194	if (mode==mLocal \|\| mode == mLocalCAF \|\| mode == mGRID) {
	195	//--------------------------------------------------------
	196	// If you want to use already compiled libraries
	197	// in the aliroot distribution
	198	//--------------------------------------------------------
	199	//gSystem->Load("libSTEERBase");
	200	//gSystem->Load("libESD");
	201	//gSystem->Load("libAOD");
	202	//gSystem->Load("libANALYSIS");
	203	//gSystem->Load("libANALYSISalice");
3e0577a2	204	//gSystem->Load("libJETAN");
	205	//gSystem->Load("libPHOSUtils");
	206	//gSystem->Load("libPWG4PartCorrBase");
	207	//gSystem->Load("libPWG4PartCorrDep");
	208
76518957	209	//--------------------------------------------------------
	210	//If you want to use root and par files from aliroot
	211	//--------------------------------------------------------
	212	SetupPar("STEERBase");
	213	SetupPar("ESD");
	214	SetupPar("AOD");
	215	SetupPar("ANALYSIS");
	216	SetupPar("ANALYSISalice");
3e0577a2	217	SetupPar("JETAN");
	218	//If your analysis needs PHOS geometry uncomment following lines
	219	// SetupPar("PHOSUtils");
	220	// //Create Geometry
	221	// TGeoManager::Import("geometry.root") ; //need file "geometry.root" in local dir!!!!
	222	SetupPar("PWG4PartCorrBase");
	223	SetupPar("PWG4PartCorrDep");
76518957	224
	225	}
	226
	227	//---------------------------------------------------------
	228	// <<<<<<<<<< PROOF mode >>>>>>>>>>>>
	229	//---------------------------------------------------------
	230	else if (mode==mPROOF) {
	231	//
	232	// Connect to proof
	233	// Put appropriate username here
	234	// TProof::Reset("proof://mgheata@lxb6046.cern.ch");
	235	TProof::Open("proof://mgheata@lxb6046.cern.ch");
	236
	237	// gProof->ClearPackages();
	238	// gProof->ClearPackage("ESD");
	239	// gProof->ClearPackage("AOD");
	240	// gProof->ClearPackage("ANALYSIS");
3e0577a2	241	// gProof->ClearPackage("JETAN");
	242	// gProof->ClearPackage("PWG4PartCorrDep");
	243	// gProof->ClearPackage("PWG4PartCorrBase");
76518957	244
	245	// Enable the STEERBase Package
	246	gProof->UploadPackage("STEERBase.par");
	247	gProof->EnablePackage("STEERBase");
	248	// Enable the ESD Package
	249	gProof->UploadPackage("ESD.par");
	250	gProof->EnablePackage("ESD");
	251	// Enable the AOD Package
	252	gProof->UploadPackage("AOD.par");
	253	gProof->EnablePackage("AOD");
	254	// Enable the Analysis Package
	255	gProof->UploadPackage("ANALYSIS.par");
	256	gProof->EnablePackage("ANALYSIS");
3e0577a2	257	// Enable JETAN
76518957	258	gProof->UploadPackage("JETAN.par");
76518957	259	gProof->EnablePackage("JETAN");
3e0577a2	260	// Enable PHOSUtils
	261	//gProof->UploadPackage("PHOSUtils.par");
	262	//gProof->EnablePackage("PHOSUtils");
	263	// Enable PartCorr analysis
	264	gProof->UploadPackage("PWG4PartCorrBase.par");
	265	gProof->EnablePackage("PWG4PartCorrBase");
	266	gProof->UploadPackage("PWG4PartCorrDep.par");
	267	gProof->EnablePackage("PWG4PartCorrDep");
76518957	268	//
	269	gProof->ShowEnabledPackages();
	270	}
	271
	272	}
	273
	274	void SetupPar(char* pararchivename)
	275	{
	276	//Load par files, create analysis libraries
	277	//For testing, if par file already decompressed and modified
	278	//classes then do not decompress.
	279
	280	TString cdir(Form("%s", gSystem->WorkingDirectory() )) ;
	281	TString parpar(Form("%s.par", pararchivename)) ;
	282	if ( gSystem->AccessPathName(parpar.Data()) ) {
	283	gSystem->ChangeDirectory(gSystem->Getenv("ALICE_ROOT")) ;
	284	TString processline(Form(".! make %s", parpar.Data())) ;
	285	gROOT->ProcessLine(processline.Data()) ;
	286	gSystem->ChangeDirectory(cdir) ;
	287	processline = Form(".! mv $ALICE_ROOT/%s .", parpar.Data()) ;
	288	gROOT->ProcessLine(processline.Data()) ;
	289	}
	290	if ( gSystem->AccessPathName(pararchivename) ) {
	291	TString processline = Form(".! tar xvzf %s",parpar.Data()) ;
	292	gROOT->ProcessLine(processline.Data());
	293	}
	294
	295	TString ocwd = gSystem->WorkingDirectory();
	296	gSystem->ChangeDirectory(pararchivename);
	297
	298	// check for BUILD.sh and execute
	299	if (!gSystem->AccessPathName("PROOF-INF/BUILD.sh")) {
	300	printf("*******************************\n");
	301	printf("* Building PAR archive *\n");
	302	cout<<pararchivename<<endl;
	303	printf("*******************************\n");
	304
	305	if (gSystem->Exec("PROOF-INF/BUILD.sh")) {
	306	Error("runProcess","Cannot Build the PAR Archive! - Abort!");
	307	return -1;
	308	}
	309	}
	310	// check for SETUP.C and execute
	311	if (!gSystem->AccessPathName("PROOF-INF/SETUP.C")) {
	312	printf("*******************************\n");
	313	printf("* Setup PAR archive *\n");
	314	cout<<pararchivename<<endl;
	315	printf("*******************************\n");
	316	gROOT->Macro("PROOF-INF/SETUP.C");
	317	}
	318
	319	gSystem->ChangeDirectory(ocwd.Data());
	320	printf("Current dir: %s\n", ocwd.Data());
	321	}
	322
	323
	324
	325	void CreateChain(const anaModes mode, TChain * chain, TChain * chainxs){
	326	//Fills chain with data
	327	TString ocwd = gSystem->WorkingDirectory();
	328
	329	//-----------------------------------------------------------
	330	//Analysis of CAF data locally and with PROOF
	331	//-----------------------------------------------------------
332	if(mode ==mPROOF \|\| mode ==mLocalCAF){
333	// Chain from CAF
334	gROOT->LoadMacro("$ALICE_ROOT/PWG0/CreateESDChain.C");
335	// The second parameter is the number of input files in the chain
336	chain = CreateESDChain("ESD12001.txt", 5);
337	}
338
339	//---------------------------------------
340	//Local files analysis
341	//---------------------------------------
342	else if(mode == mLocal){
343	//If you want to add several ESD files sitting in a common directory INDIR
344	//Specify as environmental variables the directory (INDIR), the number of files
345	//to analyze (NEVENT) and the pattern name of the directories with files (PATTERN)
346
347	if(gSystem->Getenv("INDIR"))
348	kInDir = gSystem->Getenv("INDIR") ;
349	else cout<<"INDIR not set, use default: "<<kInDir<<endl;
350
351	if(gSystem->Getenv("PATTERN"))
352	kPattern = gSystem->Getenv("PATTERN") ;
353	else cout<<"PATTERN not set, use default: "<<kPattern<<endl;
354
355	if(gSystem->Getenv("NEVENT"))
356	kEvent = atoi(gSystem->Getenv("NEVENT")) ;
357	else cout<<"NEVENT not set, use default: "<<kEvent<<endl;
358
359	//Check if env variables are set and are correct
360	if ( kInDir && kEvent) {
361	printf("Get %d files from directory %s\n",kEvent,kInDir);
362	if ( ! gSystem->cd(kInDir) ) {//check if ESDs directory exist
363	printf("%s does not exist\n", kInDir) ;
364	return ;
365	}
366	cout<<"INDIR : "<<kInDir<<endl;
367	cout<<"NEVENT : "<<kEvent<<endl;
368	cout<<"PATTERN: " <<kPattern<<endl;
369
370	//Loop on ESD files, add them to chain
371	Int_t event =0;
372	Int_t skipped=0 ;
373	char file[120] ;
374	char filexs[120] ;
375
376	for (event = 0 ; event < kEvent ; event++) {
377	sprintf(file, "%s/%s%d/AliESDs.root", kInDir,kPattern,event) ;
378	sprintf(filexs, "%s/%s%d/%s", kInDir,kPattern,event,kXSFileName) ;
379	TFile * fESD = 0 ;
380	//Check if file exists and add it, if not skip it
381	if ( fESD = TFile::Open(file)) {
382	if ( fESD->Get("esdTree") ) {
383	printf("++++ Adding %s\n", file) ;
384	chain->AddFile(file);
385	chainxs->Add(filexs) ;
386	}
387	}
388	else {
389	printf("---- Skipping %s\n", file) ;
390	skipped++ ;
391	}
392	}
393	printf("number of entries # %lld, skipped %d\n", chain->GetEntries(), skipped*100) ;
394	}
395	else {
396	TString input = "AliESDs.root" ;
397	cout<<">>>>>> No list added, take a single file <<<<<<<<< "<<input<<endl;
398	chain->AddFile(input);
399	}
400
401	}// local files analysis
402
403	//------------------------------
404	//GRID xml files
405	//-----------------------------
406	else if(mode == mGRID){
407	//Get colection file. It is specified by the environmental
408	//variable XML
409
410	if(gSystem->Getenv("XML") )
411	kXML = gSystem->Getenv("XML");
412	else
413	sprintf(kXML, "collection.xml") ;
414
415	if (!TFile::Open(kXML)) {
416	printf("No collection file with name -- %s -- was found\n",kXML);
417	return ;
418	}
419	else cout<<"XML file "<<kXML<<endl;
420
421	//Load necessary libraries and connect to the GRID
422	gSystem->Load("libNetx.so") ;
423	gSystem->Load("libRAliEn.so");
424	TGrid::Connect("alien://") ;
425
426	//Feed Grid with collection file
427	//TGridCollection * collection = (TGridCollection*)gROOT->ProcessLine(Form("TAlienCollection::Open(\"%s\", 0)", kXML));
428	TGridCollection * collection = (TGridCollection*) TAlienCollection::Open(kXML);
429	if (! collection) {
430	AliError(Form("%s not found", kXML)) ;
431	return kFALSE ;
432	}
433	TGridResult* result = collection->GetGridResult("",0 ,0);
434
435	// Makes the ESD chain
436	printf("* Getting the Chain *\n");
437	for (Int_t index = 0; index < result->GetEntries(); index++) {
438	TString alienURL = result->GetKey(index, "turl") ;
439	cout << "================== " << alienURL << endl ;
440	chain->Add(alienURL) ;
441	alienURL.ReplaceAll("AliESDs.root",kXSFileName);
442	chainxs->Add(alienURL) ;
443	}
444	}// xml analysis
445
446	gSystem->ChangeDirectory(ocwd.Data());
447	}
448
449	//________________________________________________
450	void GetAverageXsection(TTree * tree, Double_t & xs, Float_t & ntr)
451	{
452	// Read the PYTHIA statistics from the file pyxsec.root created by
453	// the function WriteXsection():
454	// integrated cross section (xsection) and
455	// the number of Pyevent() calls (ntrials)
456	// and calculate the weight per one event xsection/ntrials
457	// The spectrum calculated by a user should be
458	// multiplied by this weight, something like this:
459	// TH1F *userSpectrum ... // book and fill the spectrum
460	// userSpectrum->Scale(weight)
461	//
462	// Yuri Kharlov 19 June 2007
463	// Gustavo Conesa 15 April 2008
464	Double_t xsection = 0;
465	UInt_t ntrials = 0;
466	xs = 0;
467	ntr = 0;
468
469	Int_t nfiles = tree->GetEntries() ;
470	if (tree && nfiles > 0) {
471	tree->SetBranchAddress("xsection",&xsection);
472	tree->SetBranchAddress("ntrials",&ntrials);
473	for(Int_t i = 0; i < nfiles; i++){
474	tree->GetEntry(i);
475	xs += xsection ;
476	ntr += ntrials ;
477	cout << "xsection " <<xsection<<" ntrials "<<ntrials<<endl;
478	}
479
480	xs = xs / nfiles;
481	ntr = ntr / nfiles;
482	cout << "-----------------------------------------------------------------"<<endl;
483	cout << "Average of "<< nfiles<<" files: xsection " <<xs<<" ntrials "<<ntr<<endl;
484	cout << "-----------------------------------------------------------------"<<endl;
485	}
486	else cout << " >>>> Empty tree !!!! <<<<< "<<endl;
487
488	}
489
490
491