Corrections to avoid warning messages.
[u/mrichter/AliRoot.git] / ITS / AliITSHits2Digits.C
CommitLineData
02a71a71 1#if !defined(__CINT__) || defined(__MAKECINT__)
cc2535cd 2
02a71a71 3#include "iostream.h"
4#include "TDatetime.h"
5#include "STEER/AliRun.h"
6#include "STEER/AliRunDigitizer.h"
7#include "ITS/AliITSDigitizer.h"
8#include "ITS/AliITS.h"
9#include "ITS/AliITSDetType.h"
10#include "ITS/AliITSresponseSDD.h"
11#include "TStopwatch.h"
cc2535cd 12
02a71a71 13#endif
14
15TFile* AccessFile(TString inFile="galice.root", TString acctype="R");
16void writeAR(TFile * fin, TFile *fou);
17Int_t ChangeITSDefaults(TFile *hitfile,AliITS *ITS,TString opt="");
18//#define DEBUG
19Int_t AliITSHits2Digits(TString hitFile = "galice.root",
20 TString digFile = "galiceD.root",TString opt=""){
21 // Standeard ITS Hits to Digits, excluding creation of SDigits.
22
23 // Dynamically link some shared libs
24 if (gClassTable->GetID("AliRun") < 0) {
cc2535cd 25 gROOT->LoadMacro("loadlibs.C");
26 loadlibs();
02a71a71 27 } // end if
28
29 // Connect the Root Galice file containing Geometry, Kine and Hits
30
31 TFile *hitfile = 0; // pointer to input file.
32 TFile *digfile = 0; // possible output file for TreeD
33 if(digFile.CompareTo(hitFile) == 0){// write output to same file as input.
34 hitfile = AccessFile(hitFile,"U"); // input file open for update.
35 }else{ // different output file then input file.
36 hitfile = AccessFile(hitFile,"R"); // input file open as read only
37 // open output file and create TreeR on it
38 digfile = gAlice->InitTreeFile("D",digFile);
39 } // end if digFile == hitFile.
40
41 AliITS *ITS = (AliITS*)gAlice->GetDetector("ITS");
42 if (!ITS) {
cc2535cd 43 cerr<<"AliITSHits2DigitsDefault.C : AliITS object not found on file"
44 << endl;
45 return 3;
02a71a71 46 } // end if !ITS
47 if(!(ITS->GetITSgeom())){
cc2535cd 48 cerr << " AliITSgeom not found. Can't digitize with out it." << endl;
49 return 4;
02a71a71 50 } // end if
51
52 ChangeITSDefaults(hitfile,ITS,opt);
53 // write the AliRun object to the output file if different from input file.
54 if(digfile) writeAR(hitfile,digfile);
55
56 TStopwatch timer;
57 Int_t evNumber1 = 0;
58 Int_t evNumber2 = gAlice->GetEventsPerRun();
59 timer.Start();
60 for(Int_t nevent = evNumber1; nevent < evNumber2; nevent++){
61 // cout<<"Producing Digits for event n."<<nevent<<endl;
62 gAlice->GetEvent(nevent);
63 if(!gAlice->TreeD() && digfile == 0){
64 cout << "Having to create the Digits Tree." << endl;
65 gAlice->MakeTree("D");
66 } // end if creating digits tree
67 if(digfile) gAlice->MakeTree("D",digfile);
68 ITS->MakeBranch("D");
69 ITS->SetTreeAddress();
70 ITS->Hits2Digits();
71 } // end for nevent
72 timer.Stop();
73 timer.Print();
74 if(digfile!=0){
75 cout << digFile << " size =" << digfile->GetSize() << endl;
76 }else{
77 cout << hitFile << " size =" << hitfile->GetSize() << endl;
78 } // end if sdigfile!=0
79
80 delete gAlice; // digfile is closed by deleting gAlice if != hitfile.
81 gAlice = 0;
82 hitfile->Close(); hitfile = 0;
cc2535cd 83}
02a71a71 84//______________________________________________________________________
cc2535cd 85TFile * AccessFile(TString FileName, TString acctype){
02a71a71 86 // Function used to open the input file and fetch the AliRun object
87
88 TFile *retfil = 0;
89 TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(FileName);
90 if(file) {
91 file->Close();
92 delete file;
93 file = 0;
94 } // end if file
95 if(acctype.Contains("U")){
96 file = new TFile(FileName,"UPDATE");
97 } // end if open for update
98 if(acctype.Contains("N") && !file){
99 file = new TFile(FileName,"RECREATE");
100 } // end if open a new file
101 if(!file) file = new TFile(FileName,"READ"); // default readonly
102 if (!file->IsOpen()) {
103 cerr << "Can't open " << FileName << " !" << endl;
cc2535cd 104 return retfil;
02a71a71 105 } // end if error opeing file
106
107 // Get AliRun object from file or return if not on file
108 if (gAlice) {delete gAlice; gAlice = 0;}
109 gAlice = (AliRun*)file->Get("gAlice");
110 if (!gAlice) {
111 cerr << "AliRun object not found on file "<< FileName << "!" << endl;
112 file->Close(); // close file and return error.
cc2535cd 113 return retfil;
02a71a71 114 } // end if !gAlice
115 return file;
cc2535cd 116}
02a71a71 117//______________________________________________________________________
cc2535cd 118void writeAR(TFile * fin, TFile *fou) {
02a71a71 119 TDirectory *current = gDirectory;
120 TTree *TeOld;
121 TTree *TeNew;
122 AliHeader *alhe = new AliHeader();
123 TeOld = (TTree*)fin->Get("TE");
124 TeOld->SetBranchAddress("Header",&alhe);
125 TeOld->SetBranchStatus("*",1);
126 fou->cd();
127 TeNew = TeOld->CloneTree();
128 TeNew->Write(0,TObject::kOverwrite);
129 gAlice->Write(0,TObject::kOverwrite);
130 current->cd();
131 delete alhe;
132#ifdef DEBUG
133 cout << "AliRun object written to file" << endl;
134#endif
cc2535cd 135}
02a71a71 136//______________________________________________________________________
137Int_t ChangeITSDefaults(TFile *hitfile,AliITS *ITS,TString opt){
cc2535cd 138
02a71a71 139 TDatime *ct0 = new TDatime(2002,04,26,00,00,00);
140 TDatime ct = hitfile->GetCreationDate();
cc2535cd 141
02a71a71 142 if(ct0->GetDate()>ct.GetDate()){
143 // For old files, must change SDD noise.
144 AliITSresponseSDD *resp1 = (AliITSresponseSDD*)ITS->DetType(1)->
145 GetResponseModel();
146 resp1 = new AliITSresponseSDD();
147 ITS->SetResponseModel(1,resp1);
148 cout << "Changed response class for SDD:" << endl;
149 resp1->Print();
150 } // end if
151
152 if(opt.Contains("Dubna")){
153 AliITSresponseSPDdubna *resp0 = new AliITSresponseSPDdubna();
154 if(ITS->DetType(0)->GetResponseModel() !=0){
155 delete ((AliITSresponse*)ITS->DetType(0)->GetResponseModel());
156 ITS->DetType(0)->ResponseModel(0);
157 } // end if
158 ITS->DetType(0)->ResponseModel(resp0);
159 AliITSsegmentationSPD *seg0 = (AliITSsegmentationSPD*)ITS->
160 DetType(0)->GetSegmentationModel();
161 AliITSsimulationSPDdubna *sim0 = new AliITSsimulationSPDdubna(seg0,
162 resp0);
163 if(ITS->DetType(0)->GetSimulationModel() !=0){
164 delete ((AliITSsimulation*)ITS->DetType(0)->GetSimulationModel());
165 ITS->DetType(0)->SimulationModel(0);
166 } // end if
167 ITS->DetType(0)->SimulationModel(sim0);
168 } // end if Dubna
169}