Extacting the OCDB in a separate module. The detectors have write permission in the...
[u/mrichter/AliRoot.git] / HMPID / MakeHMPIDResMisAlignment.C
1 void MakeHMPIDResMisAlignment(){
2   // Create TClonesArray of residual misalignment objects for HMPID
3   //
4   const char* macroname = "MakeHMPIDResMisAlignment.C";
5   // Activate CDB storage and load geometry from CDB
6   AliCDBManager* cdb = AliCDBManager::Instance();
7   if(!cdb->IsDefaultStorageSet()) cdb->SetDefaultStorage("local://$ALICE_ROOT/OCDB");
8   cdb->SetRun(0);
9   
10   AliCDBStorage* storage;
11   TString Storage;
12   
13   if( TString(gSystem->Getenv("TOCDB")) == TString("kTRUE") ){
14     Storage = gSystem->Getenv("STORAGE");
15     if(!Storage.BeginsWith("local://") && !Storage.BeginsWith("alien://")) {
16       Error(macroname,"STORAGE variable set to %s is not valid. Exiting\n",Storage.Data());
17       return;
18     }
19     storage = cdb->GetStorage(Storage.Data());
20     if(!storage){
21       Error(macroname,"Unable to open storage %s\n",Storage.Data());
22       return;
23     }
24     AliCDBPath path("GRP","Geometry","Data");
25     AliCDBEntry *entry = storage->Get(path.GetPath(),cdb->GetRun());
26     if(!entry) Fatal(macroname,"Could not get the specified CDB entry!");
27     entry->SetOwner(0);
28     TGeoManager* geom = (TGeoManager*) entry->GetObject();
29     AliGeomManager::SetGeometry(geom);
30   }else{
31     AliGeomManager::LoadGeometry(); //load geom from default CDB storage
32   }    
33                   
34   Float_t sigmaTrans=0.1; // 1mm
35   Float_t sigmaRot=0.001*180/TMath::Pi(); // 1 mrad
36   Float_t dX, dY, dX;          Float_t dPsi, dTheta, dPhi;   //displacements
37
38   TClonesArray *pCA = new TClonesArray("AliAlignObjMatrix",10);
39   
40   TRandom *pRnd   = new TRandom(4357);
41
42   Int_t idHMPID =  AliGeomManager::kHMPID;
43   for (Int_t iCh = 0; iCh < 7; iCh++) {
44     dX     = (pRnd->Uniform()-0.5)*sigmaTrans;    dY     = (pRnd->Uniform()-0.5)*sigmaTrans;    dZ     = (pRnd->Uniform()-0.5)*sigmaTrans;
45     dPsi   = (pRnd->Uniform()-0.5)*sigmaRot;    dTheta = (pRnd->Uniform()-0.5)*sigmaRot;    dPhi   = (pRnd->Uniform()-0.5)*sigmaRot;
46     new((*pCA)[iCh]) AliAlignObjMatrix(AliGeomManager::SymName(idHMPID,iCh),AliGeomManager::LayerToVolUID(idHMPID,iCh),dX,dY,dZ,dPsi,dTheta,dPhi,kTRUE);
47   }
48
49 //   pCA->Print();
50   
51   if( TString(gSystem->Getenv("TOCDB")) != TString("kTRUE") ){
52     // save on file
53     const char* filename = "HMPIDresidualMisalignment.root";
54     TFile f(filename,"RECREATE");
55     if(!f){
56       Error(macroname,"cannot open file for output\n");
57       return;
58     }
59     Info(macroname,"Saving alignment objects to the file %s", filename);
60     f.cd();
61     f.WriteObject(pCA,"HMPIDAlignObjs","kSingleKey");
62     f.Close();
63   }else{
64     // save in CDB storage
65     Info(macroname,"Saving alignment objects in CDB storage %s", Storage.Data());
66     AliCDBMetaData *pMeta= new AliCDBMetaData();  
67     pMeta->SetResponsible("HMPID Expert");
68     pMeta->SetComment("Residual alignment objects for HMPID produced with sigmaTrans=1mm and sigmaRot=1mrad");
69     pMeta->SetAliRootVersion(gSystem->Getenv("ARVERSION"));
70     AliCDBId id("HMPID/Align/Data",0,AliCDBRunRange::Infinity());
71     storage->Put(pCA,id,pMeta);
72   }
73   
74   pCA->Delete();
75 }