HLT/global/ReadFlatESD.C

   1 /**
   2  * >> Testing Macro to read FlatESDEvent from output file <<
   3  **
   4  * Primary Authors : Sergey Gorbunov, Jochen Thaeder, Chiara Zampolli
   5  *
   6  * Usage:
   7  *  aliroot -b -l -q LoadLibs.C ReadFlatESD.C++
   8  *
   9  **************************************************************************/
  10
  11 #if !defined(__CINT__) || defined(__MAKECINT__)
  12 #include "AliESDEvent.h"
  13 #include "AliESD.h"
  14 #include "AliESDfriend.h"
  15 #include <TFile.h>
  16 #include <TTree.h>
  17 #include <TSystem.h>
  18 #include "./AliFlatESDEvent.h"
  19 #include "./AliFlatESDTrack.h"
  20 #include "./AliFlatTPCCluster.h"
  21 #include "./AliFlatExternalTrackParam.h"
  22 #include "Riostream.h"
  23 #endif
  24
  25 void ReadFlatESD(const char* filename="outFlatESD.dat", Bool_t verbose=kFALSE) {
  26
  27   ifstream is(filename, std::ifstream::binary | std::ifstream::in);
  28   if (is){
  29     std::cout << "ifstream available"<<endl;
  30     is.seekg (0, is.end);
  31     int length = is.tellg();
  32     is.seekg (0, is.beg);
  33     std::cout << "length"<<length<<endl;
  34     char * buffer = new char [length];
  35
  36     std::cout << "Reading " << length << " characters... ";
  37
  38     is.read (buffer,length);
  39     if (is)
  40       std::cout << "all characters read successfully." << endl;
  41     else
  42       std::cout << "error: only " << is.gcount() << " could be read";
  43     is.close();
  44
  45     // ...buffer contains the entire file...
  46
  47     char *curr = buffer;
  48     char *endBuff = buffer+length;
  49     int iEvent = 0;
  50     while( curr < endBuff ){
  51       cout<<"Reading event "<<iEvent<<":"<<endl;
  52       AliFlatESDEvent *flatEsd = reinterpret_cast<AliFlatESDEvent *>(curr);
  53                         new (flatEsd) AliFlatESDEvent(1);
  54
  55       cout<<"vtx SPD: "<<(Bool_t) flatEsd->GetPrimaryVertexSPD()
  56           <<" vtx tracks: "<<(Bool_t) flatEsd->GetPrimaryVertexTracks()
  57           <<" ntracks: "<<flatEsd->GetNumberOfTracks()
  58           <<" nV0's: "<<flatEsd->GetNumberOfV0s()
  59           <<endl;
  60
  61
  62
  63
  64 // compare tracks
  65 if(verbose){
  66         static const int nExt = 4;
  67           AliFlatESDTrack *track = flatEsd->GetTracks();
  68     for (Int_t idxTrack = 0; idxTrack < flatEsd->GetNumberOfTracks() && track; ++idxTrack) {
  69
  70                 AliFlatExternalTrackParam* ext[nExt] ={
  71
  72                                 track->GetTrackParamRefitted(),
  73                                 track->GetTrackParamIp(),
  74                                 track->GetTrackParamTPCInner(),
  75                                 track->GetTrackParamOp(),
  76
  77                 };
  78
  79         //Printf("  TEST: FlatTrack1 %d > FlatExternalTrackParam1 > %p %p %p %p", idxTrack, exp11, exp21, exp31, exp41);
  80         //Printf("  TEST: FlatTrack2 %d > FlatExternalTrackParam2 > %p %p %p %p", idxTrack, exp12, exp22, exp32, exp42);
  81
  82
  83         for(int iExt=0; iExt<nExt; ++iExt){
  84 cout<<endl<<iExt<<endl;
  85                 if(!ext[iExt]){
  86                 //      cout<<"DIFFERENCE!: ";
  87                         cout<<" ext"<<iExt<<" not set"<<endl;
  88                 }
  89
  90
  91                 cout<<" alpha"<<iExt<<" :"  << (ext[iExt] ? ext[iExt]->GetAlpha() : -9999) <<endl;
  92
  93
  94
  95 cout<<" GetX"<<iExt<<" :"  << (ext[iExt] ? ext[iExt]->GetX(): -9999) <<endl;
  96
  97
  98
  99         cout<<" 1/pt"<<iExt<<" :"  <<  (ext[iExt] ? ext[iExt]->GetSigned1Pt(): -9999)  <<endl;
 100
 101
 102 }
 103
 104                 cout<<" nTPCclusters: "<<track->GetNumberOfTPCClusters()<< endl;
 105
 106                 cout<<" nITSclusters: "<<track->GetNumberOfITSClusters()<< endl;
 107
 108
 109 // compare clusters
 110         if(  track->GetNumberOfTPCClusters()){
 111                 for (Int_t idxCluster = 0; idxCluster < track->GetNumberOfTPCClusters(); ++idxCluster){
 112                         AliFlatTPCCluster * cl = track->GetTPCCluster(idxCluster);
 113
 114                                 cout<<" clusterNr fX fY fZ fPadRow fSigmaY2 fSigmaZ2 fCharge fQMax" <<endl;
 115                                 cout<< idxCluster<<" "<< cl->GetX()<<" "<< cl->GetY()<<" "<< cl->GetZ()<<" "<< cl->GetPadRow()<<" "<< cl->GetSigmaY2()<<" "<< cl->GetSigmaZ2()<<" "<< cl->GetCharge()<<" "<< cl->GetQMax() <<endl;
 116
 117                 }
 118           }
 119
 120       track = track->GetNextTrack();
 121
 122
 123           }
 124 }
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136       curr=curr+ flatEsd->GetSize();
 137       iEvent++;
 138     }
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150     delete[] buffer;
 151   }
 152   else {
 153     cout << "File "<<filename<<" could not be read" << endl;
 154   }
 155   return;
 156 }