[Common] Add Oxygen and Neon to CollisionTypeHelper (#11879)

Author: njacazio

Common/Core/CollisionTypeHelper.cxx

@@ -10,7 +10,7 @@
 // or submit itself to any jurisdiction.
 
 ///
-/// \file   CollisionTypeHelper.h
+/// \file   CollisionTypeHelper.cxx
 /// \author Nicolò Jacazio nicolo.jacazio@cern.ch
 /// \brief  Utility to handle the collision type from the GRP information
 ///
@@ -34,17 +34,26 @@ std::string o2::common::core::CollisionSystemType::getCollisionSystemName(collTy
       return "XeXe";
     case kCollSyspPb:
       return "pPb";
+    case kCollSysOO:
+      return "OO";
+    case kCollSyspO:
+      return "pO";
+    case kCollSysNeNe:
+      return "NeNe";
+    case kCollSysUndef:
+      return "Undefined";
     default:
+      LOG(warning) << "Undefined collision system type: " << collSys;
       return "Undefined";
   }
 }
 
 int o2::common::core::CollisionSystemType::getCollisionTypeFromGrp(o2::parameters::GRPLHCIFData* grplhcif)
 {
-  const int ZBeamA = grplhcif->getBeamZ(o2::constants::lhc::BeamDirection::BeamA);
-  const int ZBeamC = grplhcif->getBeamZ(o2::constants::lhc::BeamDirection::BeamC);
-  LOG(debug) << "Collision system: " << ZBeamA << " * " << ZBeamC << " detected";
-  switch (ZBeamA * ZBeamC) {
+  const int zBeamA = grplhcif->getBeamZ(o2::constants::lhc::BeamDirection::BeamA);
+  const int zBeamC = grplhcif->getBeamZ(o2::constants::lhc::BeamDirection::BeamC);
+  LOG(debug) << "Collision system Z: " << zBeamA << " * " << zBeamC << " detected = " << zBeamA * zBeamC;
+  switch (zBeamA * zBeamC) {
     case 1: // pp 1*1
       return kCollSyspp;
     case 6724: // Pb-Pb 82*82
@@ -53,8 +62,14 @@ int o2::common::core::CollisionSystemType::getCollisionTypeFromGrp(o2::parameter
       return kCollSysXeXe;
     case 82: // p-Pb 82*1
       return kCollSyspPb;
+    case 64: // O-O 8*8
+      return kCollSysOO;
+    case 8: // p-O 8*1
+      return kCollSyspO;
+    case 100: // Ne-Ne 10*10
+      return kCollSysNeNe;
     default:
-      LOG(fatal) << "Undefined collision system in getCollisionTypeFromGrp with BeamA = " << ZBeamA << " and BeamC = " << ZBeamC;
+      LOG(fatal) << "Undefined collision system in getCollisionTypeFromGrp with Z of BeamA = " << zBeamA << " and Z of BeamC = " << zBeamC;
       return kCollSysUndef;
   }
   return kCollSysUndef;

Common/Core/CollisionTypeHelper.h

@@ -34,7 +34,10 @@ struct CollisionSystemType {
   static constexpr collType kCollSysPbPb = 1;   // PbPb
   static constexpr collType kCollSysXeXe = 2;   // XeXe
   static constexpr collType kCollSyspPb = 3;    // pPb
-  static constexpr collType kNCollSys = 4;      // Number of collision systems
+  static constexpr collType kCollSysOO = 4;     // OO (Oxygen-Oxygen)
+  static constexpr collType kCollSyspO = 5;     // pO (proton-Oxygen)
+  static constexpr collType kCollSysNeNe = 6;   // NeNe (Neon-Neon)
+  static constexpr collType kNCollSys = 7;      // Number of collision systems
 
   static std::string getCollisionSystemName(collType collSys);
 

Common/Core/macros/testCollisionTypeHelper.C

@@ -0,0 +1,30 @@
+// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+/// \file   testCollisionTypeHelper.C
+/// \author Nicolò Jacazio nicolo.jacazio@cern.ch
+/// \brief  Test the CollisionTypeHelper functionality
+
+#include "Common/Core/CollisionTypeHelper.h"
+
+#include "CCDB/BasicCCDBManager.h"
+#include "DataFormatsParameters/GRPLHCIFData.h"
+
+void testCollisionTypeHelper(int runNumber = 544124)
+{
+
+  auto& ccdb = o2::ccdb::BasicCCDBManager::instance();
+  ccdb.setURL("http://alice-ccdb.cern.ch");
+  o2::parameters::GRPLHCIFData* grpo = ccdb.getSpecificForRun<o2::parameters::GRPLHCIFData>("GLO/Config/GRPLHCIF",
+                                                                                            runNumber);
+  grpo->print();
+  int collsys = o2::common::core::CollisionSystemType::getCollisionTypeFromGrp(grpo);
+}