[u/mrichter/AliRoot.git] / PWG3 / dielectron / AliAnalysisTaskMultiDielectron.cxx

/*************************************************************************
* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
*                                                                        *
* Author: The ALICE Off-line Project.                                    *
* Contributors are mentioned in the code where appropriate.              *
*                                                                        *
* Permission to use, copy, modify and distribute this software and its   *
* documentation strictly for non-commercial purposes is hereby granted   *
* without fee, provided that the above copyright notice appears in all   *
* copies and that both the copyright notice and this permission notice   *
* appear in the supporting documentation. The authors make no claims     *
* about the suitability of this software for any purpose. It is          *
* provided "as is" without express or implied warranty.                  *
**************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////
//                                                                       //
//                        Basic Analysis Task                            //
//                                                                       //
///////////////////////////////////////////////////////////////////////////

#include <TChain.h>
#include <TH1D.h>

#include <AliCFContainer.h>
#include <AliInputEventHandler.h>
#include <AliESDInputHandler.h>
#include <AliAODInputHandler.h>
#include <AliAnalysisManager.h>
#include <AliVEvent.h>
#include <AliTriggerAnalysis.h>

#include "AliDielectron.h"
#include "AliDielectronHistos.h"
#include "AliDielectronCF.h"
#include "AliDielectronMC.h"
#include "AliAnalysisTaskMultiDielectron.h"

ClassImp(AliAnalysisTaskMultiDielectron)

//_________________________________________________________________________________
AliAnalysisTaskMultiDielectron::AliAnalysisTaskMultiDielectron() :
  AliAnalysisTaskSE(),
  fListDielectron(),
  fListHistos(),
  fListCF(),
  fSelectPhysics(kFALSE),
  fTriggerMask(AliVEvent::kMB),
  fTriggerOnV0AND(kFALSE),
  fRejectPileup(kFALSE),
  fTriggerAnalysis(0x0),
  fEventFilter(0x0),
  fEventStat(0x0)
{
  //
  // Constructor
  //
}

//_________________________________________________________________________________
AliAnalysisTaskMultiDielectron::AliAnalysisTaskMultiDielectron(const char *name) :
  AliAnalysisTaskSE(name),
  fListDielectron(),
  fListHistos(),
  fListCF(),
  fSelectPhysics(kFALSE),
  fTriggerMask(AliVEvent::kMB),
  fTriggerOnV0AND(kFALSE),
  fRejectPileup(kFALSE),
  fTriggerAnalysis(0x0),
  fEventFilter(0x0),
  fEventStat(0x0)
{
  //
  // Constructor
  //
  DefineInput(0,TChain::Class());
  DefineOutput(1, TList::Class());
  DefineOutput(2, TList::Class());
  DefineOutput(3, TH1D::Class());
  fListHistos.SetName("Dielectron_Histos_Multi");
  fListCF.SetName("Dielectron_CF_Multi");
  fListDielectron.SetOwner();
  fListHistos.SetOwner();
  fListCF.SetOwner();
}


//_________________________________________________________________________________
void AliAnalysisTaskMultiDielectron::UserCreateOutputObjects()
{
  //
  // Add all histogram manager histogram lists to the output TList
  //

  if (!fListHistos.IsEmpty()||!fListCF.IsEmpty()) return; //already initialised

  AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
  Bool_t isESD=man->GetInputEventHandler()->IsA()==AliESDInputHandler::Class();
//   Bool_t isAOD=man->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
  
  TIter nextDie(&fListDielectron);
  AliDielectron *die=0;
  while ( (die=static_cast<AliDielectron*>(nextDie())) ){
    die->Init();
    if (die->GetHistogramList()) fListHistos.Add(const_cast<THashList*>(die->GetHistogramList()));
    if (die->GetCFManagerPair()) fListCF.Add(const_cast<AliCFContainer*>(die->GetCFManagerPair()->GetContainer()));
  }

  Int_t cuts=fListDielectron.GetEntries();
  Int_t nbins=kNbinsEvent+2*cuts;
  if (!fEventStat){
    fEventStat=new TH1D("hEventStat","Event statistics",nbins,0,nbins);
    fEventStat->GetXaxis()->SetBinLabel(1,"Before Phys. Sel.");
    fEventStat->GetXaxis()->SetBinLabel(2,"After Phys. Sel.");
    if (fTriggerOnV0AND&&isESD) fEventStat->GetXaxis()->SetBinLabel(3,"V0and triggers");
    if (fEventFilter) fEventStat->GetXaxis()->SetBinLabel(4,"After Event Filter");
    if (fRejectPileup) fEventStat->GetXaxis()->SetBinLabel(5,"After Pileup rejection");
    
    for (Int_t i=0; i<cuts; ++i){
      fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+1)+2*i,Form("#splitline{1 candidate}{%s}",fListDielectron.At(i)->GetName()));
      fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+2)+2*i,Form("#splitline{With >1 candidate}{%s}",fListDielectron.At(i)->GetName()));
    }
  }

  if (!fTriggerAnalysis) fTriggerAnalysis=new AliTriggerAnalysis;
  fTriggerAnalysis->EnableHistograms();
  fTriggerAnalysis->SetAnalyzeMC(AliDielectronMC::Instance()->HasMC());
  
  PostData(1, &fListHistos);
  PostData(2, &fListCF);
  PostData(3, fEventStat);
}

//_________________________________________________________________________________
void AliAnalysisTaskMultiDielectron::UserExec(Option_t *)
{
  //
  // Main loop. Called for every event
  //

  if (fListHistos.IsEmpty()&&fListCF.IsEmpty()) return;

  AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
  AliESDInputHandler *esdHandler=0x0;
  Bool_t isESD=man->GetInputEventHandler()->IsA()==AliESDInputHandler::Class();
  Bool_t isAOD=man->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
  if ( (esdHandler=dynamic_cast<AliESDInputHandler*>(man->GetInputEventHandler())) && esdHandler->GetESDpid() ){
    AliDielectronVarManager::SetESDpid(esdHandler->GetESDpid());
  } else {
    //load esd pid bethe bloch parameters depending on the existance of the MC handler
    // yes: MC parameters
    // no:  data parameters

    //ESD case
    if (isESD){
      if (!AliDielectronVarManager::GetESDpid()){
        
        if (AliDielectronMC::Instance()->HasMC()) {
          AliDielectronVarManager::InitESDpid();
        } else {
          AliDielectronVarManager::InitESDpid(1);
        }
      }
    }
    //AOD case
    if (isAOD){
      if (!AliDielectronVarManager::GetAODpidUtil()){
        if (AliDielectronMC::Instance()->HasMC()) {
          AliDielectronVarManager::InitAODpidUtil();
        } else {
          AliDielectronVarManager::InitAODpidUtil(1);
        }
      }
    }
  } 
  // Was event selected ?
  AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
  UInt_t isSelected = AliVEvent::kAny;
  if( fSelectPhysics && inputHandler && inputHandler->GetEventSelection() ) {
    isSelected = inputHandler->IsEventSelected();
    isSelected&=fTriggerMask;
  }
  
  //Before physics selection
  fEventStat->Fill(kAllEvents);
  if (isSelected==0) {
    PostData(3,fEventStat);
    return;
  }
  //after physics selection
  fEventStat->Fill(kSelectedEvents);

  //V0and
  if (fTriggerOnV0AND&&isESD){
    if (!fTriggerAnalysis->IsOfflineTriggerFired(static_cast<AliESDEvent*>(InputEvent()), AliTriggerAnalysis::kV0AND)) return;
  }
  fEventStat->Fill(kV0andEvents);
  
  //event filter
  if (fEventFilter) {
    if (!fEventFilter->IsSelected(InputEvent())) return;
  }
  fEventStat->Fill(kFilteredEvents);
  
  //pileup
  if (fRejectPileup){
    if (InputEvent()->IsPileupFromSPD(3,0.8,3.,2.,5.)) return;
  }
  fEventStat->Fill(kPileupEvents);
  
  //bz for AliKF
  Double_t bz = InputEvent()->GetMagneticField();
  AliKFParticle::SetField( bz );

  AliDielectronPID::SetCorrVal((Double_t)InputEvent()->GetRunNumber());
  
  //Process event in all AliDielectron instances
  TIter nextDie(&fListDielectron);
  AliDielectron *die=0;
  Int_t idie=0;
  while ( (die=static_cast<AliDielectron*>(nextDie())) ){
    die->Process(InputEvent());
    if (die->HasCandidates()){
      Int_t ncandidates=die->GetPairArray(1)->GetEntriesFast();
      if (ncandidates==1) fEventStat->Fill((kNbinsEvent)+2*idie);
      else if (ncandidates>1) fEventStat->Fill((kNbinsEvent+1)+2*idie);
    }
    ++idie;
  }
  
  PostData(1, &fListHistos);
  PostData(2, &fListCF);
  PostData(3,fEventStat);
}

//_________________________________________________________________________________
void AliAnalysisTaskMultiDielectron::FinishTaskOutput()
{
  //
  // Write debug tree
  //
  TIter nextDie(&fListDielectron);
  AliDielectron *die=0;
  while ( (die=static_cast<AliDielectron*>(nextDie())) ){
    die->SaveDebugTree();
  }
}
Commit	Line	Data
b2a297fa	1	/*************************************************************************
	2	* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
27de2dfb	16	/* $Id$ */
27de2dfb	17
b2a297fa	18	///////////////////////////////////////////////////////////////////////////
	19	// //
	20	// Basic Analysis Task //
	21	// //
	22	///////////////////////////////////////////////////////////////////////////
	23
	24	#include <TChain.h>
61d106d3	25	#include <TH1D.h>
b2a297fa	26
b2a297fa	27	#include <AliCFContainer.h>
572b0139	28	#include <AliInputEventHandler.h>
572b0139	29	#include <AliESDInputHandler.h>
ffbede40	30	#include <AliAODInputHandler.h>
572b0139	31	#include <AliAnalysisManager.h>
b2a297fa	32	#include <AliVEvent.h>
2a14a7b1	33	#include <AliTriggerAnalysis.h>
b2a297fa	34
	35	#include "AliDielectron.h"
	36	#include "AliDielectronHistos.h"
	37	#include "AliDielectronCF.h"
572b0139	38	#include "AliDielectronMC.h"
b2a297fa	39	#include "AliAnalysisTaskMultiDielectron.h"
	40
	41	ClassImp(AliAnalysisTaskMultiDielectron)
	42
	43	//_________________________________________________________________________________
	44	AliAnalysisTaskMultiDielectron::AliAnalysisTaskMultiDielectron() :
	45	AliAnalysisTaskSE(),
	46	fListDielectron(),
	47	fListHistos(),
572b0139	48	fListCF(),
61d106d3	49	fSelectPhysics(kFALSE),
61d106d3	50	fTriggerMask(AliVEvent::kMB),
2a14a7b1	51	fTriggerOnV0AND(kFALSE),
	52	fRejectPileup(kFALSE),
	53	fTriggerAnalysis(0x0),
	54	fEventFilter(0x0),
61d106d3	55	fEventStat(0x0)
b2a297fa	56	{
	57	//
	58	// Constructor
	59	//
	60	}
	61
	62	//_________________________________________________________________________________
	63	AliAnalysisTaskMultiDielectron::AliAnalysisTaskMultiDielectron(const char *name) :
	64	AliAnalysisTaskSE(name),
	65	fListDielectron(),
	66	fListHistos(),
572b0139	67	fListCF(),
61d106d3	68	fSelectPhysics(kFALSE),
61d106d3	69	fTriggerMask(AliVEvent::kMB),
2a14a7b1	70	fTriggerOnV0AND(kFALSE),
	71	fRejectPileup(kFALSE),
	72	fTriggerAnalysis(0x0),
	73	fEventFilter(0x0),
61d106d3	74	fEventStat(0x0)
b2a297fa	75	{
	76	//
	77	// Constructor
	78	//
	79	DefineInput(0,TChain::Class());
	80	DefineOutput(1, TList::Class());
	81	DefineOutput(2, TList::Class());
61d106d3	82	DefineOutput(3, TH1D::Class());
b2a297fa	83	fListHistos.SetName("Dielectron_Histos_Multi");
b2a297fa	84	fListCF.SetName("Dielectron_CF_Multi");
2a14a7b1	85	fListDielectron.SetOwner();
	86	fListHistos.SetOwner();
	87	fListCF.SetOwner();
b2a297fa	88	}
	89
	90
	91	//_________________________________________________________________________________
	92	void AliAnalysisTaskMultiDielectron::UserCreateOutputObjects()
	93	{
	94	//
	95	// Add all histogram manager histogram lists to the output TList
	96	//
	97
572b0139	98	if (!fListHistos.IsEmpty()\|\|!fListCF.IsEmpty()) return; //already initialised
b2a297fa	99
2a14a7b1	100	AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
2a14a7b1	101	Bool_t isESD=man->GetInputEventHandler()->IsA()==AliESDInputHandler::Class();
ffbede40	102	// Bool_t isAOD=man->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
2a14a7b1	103
b2a297fa	104	TIter nextDie(&fListDielectron);
	105	AliDielectron *die=0;
	106	while ( (die=static_cast<AliDielectron*>(nextDie())) ){
	107	die->Init();
	108	if (die->GetHistogramList()) fListHistos.Add(const_cast<THashList*>(die->GetHistogramList()));
	109	if (die->GetCFManagerPair()) fListCF.Add(const_cast<AliCFContainer*>(die->GetCFManagerPair()->GetContainer()));
	110	}
61d106d3	111
48609e3d	112	Int_t cuts=fListDielectron.GetEntries();
2a14a7b1	113	Int_t nbins=kNbinsEvent+2*cuts;
61d106d3	114	if (!fEventStat){
48609e3d	115	fEventStat=new TH1D("hEventStat","Event statistics",nbins,0,nbins);
61d106d3	116	fEventStat->GetXaxis()->SetBinLabel(1,"Before Phys. Sel.");
61d106d3	117	fEventStat->GetXaxis()->SetBinLabel(2,"After Phys. Sel.");
2a14a7b1	118	if (fTriggerOnV0AND&&isESD) fEventStat->GetXaxis()->SetBinLabel(3,"V0and triggers");
	119	if (fEventFilter) fEventStat->GetXaxis()->SetBinLabel(4,"After Event Filter");
	120	if (fRejectPileup) fEventStat->GetXaxis()->SetBinLabel(5,"After Pileup rejection");
	121
48609e3d	122	for (Int_t i=0; i<cuts; ++i){
2a14a7b1	123	fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+1)+2*i,Form("#splitline{1 candidate}{%s}",fListDielectron.At(i)->GetName()));
2a14a7b1	124	fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+2)+2*i,Form("#splitline{With >1 candidate}{%s}",fListDielectron.At(i)->GetName()));
48609e3d	125	}
61d106d3	126	}
2a14a7b1	127
	128	if (!fTriggerAnalysis) fTriggerAnalysis=new AliTriggerAnalysis;
	129	fTriggerAnalysis->EnableHistograms();
	130	fTriggerAnalysis->SetAnalyzeMC(AliDielectronMC::Instance()->HasMC());
61d106d3	131
	132	PostData(1, &fListHistos);
	133	PostData(2, &fListCF);
	134	PostData(3, fEventStat);
b2a297fa	135	}
	136
	137	//_________________________________________________________________________________
	138	void AliAnalysisTaskMultiDielectron::UserExec(Option_t *)
	139	{
	140	//
	141	// Main loop. Called for every event
	142	//
	143
572b0139	144	if (fListHistos.IsEmpty()&&fListCF.IsEmpty()) return;
	145
	146	AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
	147	AliESDInputHandler *esdHandler=0x0;
2a14a7b1	148	Bool_t isESD=man->GetInputEventHandler()->IsA()==AliESDInputHandler::Class();
ffbede40	149	Bool_t isAOD=man->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
572b0139	150	if ( (esdHandler=dynamic_cast<AliESDInputHandler*>(man->GetInputEventHandler())) && esdHandler->GetESDpid() ){
	151	AliDielectronVarManager::SetESDpid(esdHandler->GetESDpid());
	152	} else {
	153	//load esd pid bethe bloch parameters depending on the existance of the MC handler
	154	// yes: MC parameters
	155	// no: data parameters
2a14a7b1	156
	157	//ESD case
	158	if (isESD){
	159	if (!AliDielectronVarManager::GetESDpid()){
	160
	161	if (AliDielectronMC::Instance()->HasMC()) {
	162	AliDielectronVarManager::InitESDpid();
	163	} else {
	164	AliDielectronVarManager::InitESDpid(1);
	165	}
	166	}
	167	}
	168	//AOD case
	169	if (isAOD){
	170	if (!AliDielectronVarManager::GetAODpidUtil()){
	171	if (AliDielectronMC::Instance()->HasMC()) {
	172	AliDielectronVarManager::InitAODpidUtil();
	173	} else {
	174	AliDielectronVarManager::InitAODpidUtil(1);
	175	}
572b0139	176	}
	177	}
	178	}
	179	// Was event selected ?
	180	AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
61d106d3	181	UInt_t isSelected = AliVEvent::kAny;
572b0139	182	if( fSelectPhysics && inputHandler && inputHandler->GetEventSelection() ) {
572b0139	183	isSelected = inputHandler->IsEventSelected();
61d106d3	184	isSelected&=fTriggerMask;
572b0139	185	}
572b0139	186
61d106d3	187	//Before physics selection
2a14a7b1	188	fEventStat->Fill(kAllEvents);
61d106d3	189	if (isSelected==0) {
	190	PostData(3,fEventStat);
	191	return;
	192	}
	193	//after physics selection
2a14a7b1	194	fEventStat->Fill(kSelectedEvents);
	195
	196	//V0and
	197	if (fTriggerOnV0AND&&isESD){
	198	if (!fTriggerAnalysis->IsOfflineTriggerFired(static_cast<AliESDEvent*>(InputEvent()), AliTriggerAnalysis::kV0AND)) return;
	199	}
	200	fEventStat->Fill(kV0andEvents);
	201
	202	//event filter
	203	if (fEventFilter) {
	204	if (!fEventFilter->IsSelected(InputEvent())) return;
	205	}
	206	fEventStat->Fill(kFilteredEvents);
	207
	208	//pileup
	209	if (fRejectPileup){
	210	if (InputEvent()->IsPileupFromSPD(3,0.8,3.,2.,5.)) return;
	211	}
	212	fEventStat->Fill(kPileupEvents);
b2a297fa	213
	214	//bz for AliKF
	215	Double_t bz = InputEvent()->GetMagneticField();
	216	AliKFParticle::SetField( bz );
	217
2a14a7b1	218	AliDielectronPID::SetCorrVal((Double_t)InputEvent()->GetRunNumber());
2a14a7b1	219
b2a297fa	220	//Process event in all AliDielectron instances
	221	TIter nextDie(&fListDielectron);
	222	AliDielectron *die=0;
48609e3d	223	Int_t idie=0;
b2a297fa	224	while ( (die=static_cast<AliDielectron*>(nextDie())) ){
b2a297fa	225	die->Process(InputEvent());
48609e3d	226	if (die->HasCandidates()){
48609e3d	227	Int_t ncandidates=die->GetPairArray(1)->GetEntriesFast();
ffbede40	228	if (ncandidates==1) fEventStat->Fill((kNbinsEvent)+2*idie);
ffbede40	229	else if (ncandidates>1) fEventStat->Fill((kNbinsEvent+1)+2*idie);
48609e3d	230	}
48609e3d	231	++idie;
b2a297fa	232	}
	233
	234	PostData(1, &fListHistos);
	235	PostData(2, &fListCF);
61d106d3	236	PostData(3,fEventStat);
b2a297fa	237	}
b2a297fa	238
572b0139	239	//_________________________________________________________________________________
	240	void AliAnalysisTaskMultiDielectron::FinishTaskOutput()
	241	{
	242	//
	243	// Write debug tree
	244	//
	245	TIter nextDie(&fListDielectron);
	246	AliDielectron *die=0;
	247	while ( (die=static_cast<AliDielectron*>(nextDie())) ){
	248	die->SaveDebugTree();
	249	}
	250	}
	251