STEER/AliLHCReader.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, 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
  16 ///////////////////////////////////////////////////////////////////////////////
  17 //                                                                           //
  18 //  Class to read the file coming from DCS containing the information        //
  19 //  from LHC. Everything is stored in a TMap, where:                         //
  20 //  Key   --> DP name, as passed by LHC                                      //
  21 //  value --> TObjArray of AliDCSArray objects                               //
  22 //                                                                           //
  23 ///////////////////////////////////////////////////////////////////////////////
  24
  25 #include <Riostream.h>
  26 #include <time.h>
  27
  28 #include <TObjArray.h>
  29 #include <TObjString.h>
  30 #include <TObject.h>
  31 #include <TString.h>
  32 #include <TMap.h>
  33 #include <TSystem.h>
  34 #include <TError.h>
  35
  36 #include "AliDCSArray.h"
  37 #include "AliLHCReader.h"
  38 #include "AliLog.h"
  39
  40 //--------------------------------------------------------------------------
  41 AliLHCReader::AliLHCReader():
  42         TObject(),
  43         fStartTime(0),
  44         fEndTime(0)
  45 {
  46         // default ctor
  47 }
  48
  49 //--------------------------------------------------------------------------
  50 AliLHCReader::~AliLHCReader()
  51 {
  52         //
  53         // dtor
  54         //
  55 }
  56
  57 //--------------------------------------------------------------------------
  58 TMap* AliLHCReader::ReadLHCDP(TString filename)
  59 {
  60         //
  61         // reading the file with the inputs
  62         //
  63
  64         if( gSystem->AccessPathName( filename.Data() ) ) {
  65                 AliError(Form( "file (%s) not found", filename.Data() ) );
  66                 return NULL;
  67         }
  68
  69         ifstream *file = new ifstream ( filename.Data() );
  70         if (!*file) {
  71                 AliError(Form("Error opening file (%s) !",filename.Data()));
  72                 file->close();
  73                 delete file;
  74                 return NULL;
  75         }
  76         TMap* mapLHC = new TMap();
  77         mapLHC->SetOwnerKeyValue();
  78         TString strLine;
  79         Int_t lhcEntries;
  80         Int_t nBlocks = 0;
  81         Int_t nline =0;
  82         while(strLine.ReadLine(*file)){
  83                 nline++;
  84                 AliDebug(3,Form("line n. = %d",nline));
  85                 // tokenize the line with tabs
  86                 //if (strLine.BeginsWith("=")) continue;
  87                 //if (!strLine.CompareTo("END_OF_BLOCK")) {
  88                 if (strLine.Contains("END_OF_BLOCK")) {
  89                         AliDebug(2,"END_OF_BLOCK");
  90                         nBlocks++;
  91                         continue;
  92                 }
  93                 TObjArray* tokens = strLine.Tokenize("\t");
  94                 Int_t ntokens = tokens->GetEntriesFast();
  95                 AliDebug(3,Form("Number of tokens = %d",ntokens));
  96                 if (ntokens == 2 && !(((TObjString*)tokens->At(0))->String()).CompareTo("LHC_ENTRIES")){
  97                         lhcEntries = (((TObjString*)tokens->At(1))->String()).Atoi();
  98                         AliInfo(Form("LHC entries = %d",lhcEntries));
  99                         AliDebug(3,Form("LHC entries = %d",lhcEntries));
 100                         continue;
 101                 }
 102                 if (ntokens == 1 && !(((TObjString*)tokens->At(0))->String()).CompareTo("END_OF_DATA")){
 103                         AliDebug(2,"End of file reached");
 104                         delete tokens;
 105                         break;
 106                 }
 107                 if (ntokens < 4){
 108                         AliInfo(Form("Wrong number of tokens --> # tokens = %d at line %d",ntokens,nline));
 109                         // requiring at least the index of the DP, the DP name, the format, and the number of entries
 110                         delete tokens;
 111                         continue;
 112                 }
 113                 Int_t lhcDPindex = (((TObjString*)tokens->At(0))->String()).Atoi();
 114                 AliDebug(2,Form("lhcDPindex = %d",lhcDPindex));
 115                 TObjString* lhcDPname = (TObjString*)tokens->At(1);
 116                 TString lhcDPtype = ((TObjString*)tokens->At(2))->String();
 117                 AliDebug(2,Form("lhcDPname = %s",(lhcDPname->String()).Data()));
 118                 AliDebug(2,Form("lhcDPtype = %s",lhcDPtype.Data()));
 119                 TObjArray* typeTokens = lhcDPtype.Tokenize(":");
 120                 if (typeTokens->GetEntriesFast() < 2 ){
 121                         // requiring the the type and the number of elements for each measurement
 122                         AliError(Form("The format does not match the expected one, skipping the current line for DP = %s", lhcDPtype.Data()));
 123                         delete typeTokens;
 124                         delete tokens;
 125                         continue;
 126                 }
 127                 TString type = ((TObjString*)typeTokens->At(0))->String();
 128                 AliDebug(2,Form("type = %s",type.Data()));
 129                 Int_t nelements = (((TObjString*)typeTokens->At(1))->String()).Atoi();
 130                 AliDebug(2,Form("nelements = %i",nelements));
 131                 Int_t nentries = (((TObjString*)tokens->At(3))->String()).Atoi();
 132                 AliDebug(2,Form("nentries = %i",nentries));
 133                 Int_t nValuesPerEntry = nelements+1;
 134                 Int_t nfixed = 4; // n. of fixed entries
 135                 TObjArray* array;
 136                 if (mapLHC->GetValue(lhcDPname)==0x0){
 137                         array = new TObjArray();
 138                         array->SetOwner(1);
 139                         mapLHC->Add(new TObjString(lhcDPname->String()),array);
 140                 }
 141                 else{
 142                         array = (TObjArray*)mapLHC->GetValue(lhcDPname);
 143                         AliDebug(2,Form("entry found! --> %p",array));
 144                 }
 145
 146                 for (Int_t ientry=0; ientry< nentries; ientry ++){
 147                         Int_t indextime = nfixed+nValuesPerEntry*ientry+nelements;
 148                         TString strTimestamp = ((TObjString*)tokens->At(indextime))->String();
 149                         Double_t timestamp = strTimestamp.Atof();
 150                         AliDebug(2,Form("Timestamp in unix time = %f (s)",timestamp));
 151                         if (fStartTime!=0 && fEndTime!=0 && (fStartTime > timestamp || fEndTime < timestamp)){
 152                                 // error in case the measurement is not within the data taking time interval
 153                                 AliError(Form("Timestamp for entry %d of DP %s not in [%d,%d]", ientry, lhcDPtype.Data(),fStartTime,fEndTime));
 154                                 continue;
 155                         }
 156                         if (type == "i"){
 157                                 Int_t* value = new Int_t[nelements];
 158                                 for (Int_t ielement=0; ielement<nelements; ielement++){
 159                                         value[ielement] = (((TObjString*)tokens->At(nfixed+ielement+ientry*nValuesPerEntry))->String()).Atoi();
 160                                         AliDebug(2,Form("Value at index %d = %d",nfixed+ielement+ientry*nValuesPerEntry,value[ielement]));
 161                                 }
 162                                 AliDCSArray* dcs = new AliDCSArray(nelements,value,timestamp);
 163                                 array->Add(dcs);
 164                                 delete[] value;
 165                         }
 166                         else if (type == "b"){
 167                                 Bool_t* value = new Bool_t[nelements];
 168                                 for (Int_t ielement=0; ielement<nelements; ielement++){
 169                                         value[ielement] = Bool_t((((TObjString*)tokens->At(nfixed+ielement+ientry*nValuesPerEntry))->String()).Atoi());
 170                                         AliDebug(2,Form("Value at index %d = %d",nfixed+ielement+ientry*nValuesPerEntry,Int_t(value[ielement])));
 171                                 }
 172                                 AliDCSArray* dcs = new AliDCSArray(nelements,value,timestamp);
 173                                 array->Add(dcs);
 174                                 delete[] value;
 175                         }
 176                         else if (type == "f"){ // the floats should be considered as doubles
 177                                 Double_t* value = new Double_t[nelements];
 178                                 for (Int_t ielement=0; ielement<nelements; ielement++){
 179                                         TString tempstr = (TString)(((TObjString*)tokens->At(nfixed+ielement+ientry*nValuesPerEntry))->String());
 180                                         value[ielement] = (((TObjString*)tokens->At(nfixed+ielement+ientry*nValuesPerEntry))->String()).Atof();
 181                                         AliDebug(2,Form("Value at index %d = %f from string %s",nfixed+ielement+ientry*nValuesPerEntry,value[ielement],tempstr.Data()));
 182                                 }
 183                                 AliDCSArray* dcs = new AliDCSArray(nelements,value,timestamp);
 184                                 array->Add(dcs);
 185                                 delete[] value;
 186                         }
 187                         else if (type == "s"){
 188                                 TObjArray* value = new TObjArray();
 189                                 value->SetOwner(1);
 190                                 for (Int_t ielement=0; ielement<nelements; ielement++){
 191                                   TObjString* strobj = (new TObjString(((TObjString*)tokens->At(nfixed+ielement+ientry*nValuesPerEntry))->String()));
 192                                         AliDebug(2,Form("Value at index %d = %s",nfixed+ielement+ientry*nValuesPerEntry,(strobj->String()).Data()));
 193                                         value->Add(strobj);
 194                                 }
 195                                 AliDCSArray* dcs = new AliDCSArray(nelements,value,timestamp);
 196                                 array->Add(dcs);
 197                                 delete value;
 198                         }
 199                         else{
 200                                 AliError(Form("Non-expected type %s",type.Data()));
 201                                 delete typeTokens;
 202                                 delete tokens;
 203                                 file->close();
 204                                 delete file;
 205                                 return NULL;
 206                         }
 207                 }
 208                 delete typeTokens;
 209                 delete tokens;
 210         }
 211         file->close();
 212         delete file;
 213         return mapLHC;
 214 }
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