AlignableObjectId.cc

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#include "Alignment/CommonAlignment/interface/AlignableObjectId.h"

#include <algorithm>

#include "FWCore/Utilities/interface/Exception.h"
#include "Geometry/TrackerGeometryBuilder/interface/TrackerGeometry.h"
#include "Alignment/TrackerAlignment/interface/AlignableTracker.h"
#include "Alignment/MuonAlignment/interface/AlignableMuon.h"

struct AlignableObjectId::entry {
  align::StructureType type;
  const char* name;
};

namespace {

  constexpr AlignableObjectId::entry entries_RunI[] {
    {align::invalid         , "invalid"},
    {align::AlignableDetUnit, "DetUnit"},
    {align::AlignableDet    , "Det"},

    {align::TPBModule      , "TPBModule"},
    {align::TPBLadder      , "TPBLadder"},
    {align::TPBLayer       , "TPBLayer"},
    {align::TPBHalfBarrel  , "TPBHalfBarrel"},
    {align::TPBBarrel      , "TPBBarrel"},

    {align::TPEModule      , "TPEModule"},
    {align::TPEPanel       , "TPEPanel"},
    {align::TPEBlade       , "TPEBlade"},
    {align::TPEHalfDisk    , "TPEHalfDisk"},
    {align::TPEHalfCylinder, "TPEHalfCylinder"},
    {align::TPEEndcap      , "TPEEndcap"},

    {align::TIBModule      , "TIBModule"},
    {align::TIBString      , "TIBString"},
    {align::TIBSurface     , "TIBSurface"},
    {align::TIBHalfShell   , "TIBHalfShell"},
    {align::TIBLayer       , "TIBLayer"},
    {align::TIBHalfBarrel  , "TIBHalfBarrel"},
    {align::TIBBarrel      , "TIBBarrel"},

    {align::TIDModule      , "TIDModule"},
    {align::TIDSide        , "TIDSide"},
    {align::TIDRing        , "TIDRing"},
    {align::TIDDisk        , "TIDDisk"},
    {align::TIDEndcap      , "TIDEndcap"},

    {align::TOBModule      , "TOBModule"},
    {align::TOBRod         , "TOBRod"},
    {align::TOBLayer       , "TOBLayer"},
    {align::TOBHalfBarrel  , "TOBHalfBarrel"},
    {align::TOBBarrel      , "TOBBarrel"},

    {align::TECModule      , "TECModule"},
    {align::TECRing        , "TECRing"},
    {align::TECPetal       , "TECPetal"},
    {align::TECSide        , "TECSide"},
    {align::TECDisk        , "TECDisk"},
    {align::TECEndcap      , "TECEndcap"},

    {align::Pixel          , "Pixel"},
    {align::Strip          , "Strip"},
    {align::Tracker        , "Tracker"},

    {align:: AlignableDTBarrel    ,  "DTBarrel"},
    {align:: AlignableDTWheel     ,  "DTWheel"},
    {align:: AlignableDTStation   ,  "DTStation"},
    {align:: AlignableDTChamber   ,  "DTChamber"},
    {align:: AlignableDTSuperLayer,  "DTSuperLayer"},
    {align:: AlignableDTLayer     ,  "DTLayer"},
    {align:: AlignableCSCEndcap   ,  "CSCEndcap"},
    {align:: AlignableCSCStation  ,  "CSCStation"},
    {align:: AlignableCSCRing     ,  "CSCRing"},
    {align:: AlignableCSCChamber  ,  "CSCChamber"},
    {align:: AlignableCSCLayer    ,  "CSCLayer"},
    {align:: AlignableMuon        ,  "Muon"},

    {align::BeamSpot, "BeamSpot"},
    {align::notfound, nullptr}
  };

  constexpr AlignableObjectId::entry entries_PhaseI[] {
    {align::invalid         , "invalid"},
    {align::AlignableDetUnit, "DetUnit"},
    {align::AlignableDet    , "Det"},

    {align::TPBModule      , "P1PXBModule"},
    {align::TPBLadder      , "P1PXBLadder"},
    {align::TPBLayer       , "P1PXBLayer"},
    {align::TPBHalfBarrel  , "P1PXBHalfBarrel"},
    {align::TPBBarrel      , "P1PXBBarrel"},

    {align::TPEModule      , "P1PXECModule"},
    {align::TPEPanel       , "P1PXECPanel"},
    {align::TPEBlade       , "P1PXECBlade"},
    {align::TPEHalfDisk    , "P1PXECHalfDisk"},
    {align::TPEHalfCylinder, "P1PXECHalfCylinder"},
    {align::TPEEndcap      , "P1PXECEndcap"},

    {align::TIBModule      , "TIBModule"},
    {align::TIBString      , "TIBString"},
    {align::TIBSurface     , "TIBSurface"},
    {align::TIBHalfShell   , "TIBHalfShell"},
    {align::TIBLayer       , "TIBLayer"},
    {align::TIBHalfBarrel  , "TIBHalfBarrel"},
    {align::TIBBarrel      , "TIBBarrel"},

    {align::TIDModule      , "TIDModule"},
    {align::TIDSide        , "TIDSide"},
    {align::TIDRing        , "TIDRing"},
    {align::TIDDisk        , "TIDDisk"},
    {align::TIDEndcap      , "TIDEndcap"},

    {align::TOBModule      , "TOBModule"},
    {align::TOBRod         , "TOBRod"},
    {align::TOBLayer       , "TOBLayer"},
    {align::TOBHalfBarrel  , "TOBHalfBarrel"},
    {align::TOBBarrel      , "TOBBarrel"},

    {align::TECModule      , "TECModule"},
    {align::TECRing        , "TECRing"},
    {align::TECPetal       , "TECPetal"},
    {align::TECSide        , "TECSide"},
    {align::TECDisk        , "TECDisk"},
    {align::TECEndcap      , "TECEndcap"},

    {align::Pixel          , "Pixel"},
    {align::Strip          , "Strip"},
    {align::Tracker        , "Tracker"},

    {align::AlignableDTBarrel    ,  "DTBarrel"},
    {align::AlignableDTWheel     ,  "DTWheel"},
    {align::AlignableDTStation   ,  "DTStation"},
    {align::AlignableDTChamber   ,  "DTChamber"},
    {align::AlignableDTSuperLayer,  "DTSuperLayer"},
    {align::AlignableDTLayer     ,  "DTLayer"},
    {align::AlignableCSCEndcap   ,  "CSCEndcap"},
    {align::AlignableCSCStation  ,  "CSCStation"},
    {align::AlignableCSCRing     ,  "CSCRing"},
    {align::AlignableCSCChamber  ,  "CSCChamber"},
    {align::AlignableCSCLayer    ,  "CSCLayer"},
    {align::AlignableMuon        ,  "Muon"},

    {align::BeamSpot, "BeamSpot"},
    {align::notfound, nullptr}
  };

  constexpr AlignableObjectId::entry entries_PhaseII[] {
    {align::invalid         , "invalid"},
    {align::AlignableDetUnit, "DetUnit"},
    {align::AlignableDet    , "Det"},

    {align::TPBModule      , "P2PXBModule"},
    {align::TPBLadder      , "P2PXBLadder"},
    {align::TPBLayer       , "P2PXBLayer"},
    {align::TPBHalfBarrel  , "P2PXBHalfBarrel"},
    {align::TPBBarrel      , "P2PXBBarrel"},

    {align::TPEModule      , "P2PXECModule"},
    {align::TPEPanel       , "P2PXECPanel"},
    {align::TPEBlade       , "P2PXECBlade"},
    {align::TPEHalfDisk    , "P2PXECHalfDisk"},
    {align::TPEHalfCylinder, "P2PXECHalfCylinder"},
    {align::TPEEndcap      , "P2PXECEndcap"},

    // TIB doesn't exit in PhaseII
    {align::TIBModule      , "TIBModule-INVALID"},
    {align::TIBString      , "TIBString-INVALID"},
    {align::TIBSurface     , "TIBSurface-INVALID"},
    {align::TIBHalfShell   , "TIBHalfShell-INVALID"},
    {align::TIBLayer       , "TIBLayer-INVALID"},
    {align::TIBHalfBarrel  , "TIBHalfBarrel-INVALID"},
    {align::TIBBarrel      , "TIBBarrel-INVALID"},

    {align::TIDModule      , "P2OTECModule"},
    {align::TIDSide        , "P2OTECSide"},
    {align::TIDRing        , "P2OTECRing"},
    {align::TIDDisk        , "P2OTECDisk"},
    {align::TIDEndcap      , "P2OTECEndcap"},

    {align::TOBModule      , "P2OTBModule"},
    {align::TOBRod         , "P2OTBRod"},
    {align::TOBLayer       , "P2OTBLayer"},
    {align::TOBHalfBarrel  , "P2OTBHalfBarrel"},
    {align::TOBBarrel      , "P2OTBBarrel"},

    // TEC doesn't exit in PhaseII
    {align::TECModule      , "TECModule-INVALID"},
    {align::TECRing        , "TECRing-INVALID"},
    {align::TECPetal       , "TECPetal-INVALID"},
    {align::TECSide        , "TECSide-INVALID"},
    {align::TECDisk        , "TECDisk-INVALID"},
    {align::TECEndcap      , "TECEndcap-INVALID"},

    {align::Pixel          , "Pixel"},
    {align::Strip          , "Strip"},
    {align::Tracker        , "Tracker"},

    {align::AlignableDTBarrel    ,  "DTBarrel"},
    {align::AlignableDTWheel     ,  "DTWheel"},
    {align::AlignableDTStation   ,  "DTStation"},
    {align::AlignableDTChamber   ,  "DTChamber"},
    {align::AlignableDTSuperLayer,  "DTSuperLayer"},
    {align::AlignableDTLayer     ,  "DTLayer"},
    {align::AlignableCSCEndcap   ,  "CSCEndcap"},
    {align::AlignableCSCStation  ,  "CSCStation"},
    {align::AlignableCSCRing     ,  "CSCRing"},
    {align::AlignableCSCChamber  ,  "CSCChamber"},
    {align::AlignableCSCLayer    ,  "CSCLayer"},
    {align::AlignableMuon        ,  "Muon"},

    {align::BeamSpot, "BeamSpot"},
    {align::notfound, nullptr}
  };


  constexpr bool same(char const *x, char const *y) {
    return !*x && !*y ? true : (*x == *y && same(x+1, y+1));
  }

  constexpr char const *objectIdToString(align::StructureType type,
                                         AlignableObjectId::entry const *entries) {
    return !entries->name ?  nullptr :
            entries->type == type ? entries->name :
                                    objectIdToString(type, entries+1);
  }

  constexpr enum align::StructureType stringToObjectId(char const *name,
                                                       AlignableObjectId::entry const *entries) {
    return !entries->name             ? align::invalid :
            same(entries->name, name) ? entries->type :
                                        stringToObjectId(name, entries+1);
  }
}


//_____________________________________________________________________________
AlignableObjectId
::AlignableObjectId(AlignableObjectId::Geometry geometry) :
  geometry_(geometry)
{
  switch (geometry) {
  case AlignableObjectId::Geometry::RunI:    entries_ = entries_RunI;    break;
  case AlignableObjectId::Geometry::PhaseI:  entries_ = entries_PhaseI;  break;
  case AlignableObjectId::Geometry::PhaseII: entries_ = entries_PhaseII; break;
  case AlignableObjectId::Geometry::General: entries_ = entries_RunI;    break;
  case AlignableObjectId::Geometry::Unspecified: entries_ = nullptr;     break;
  }
  if (!entries_) {
    throw cms::Exception("LogicError")
      << "@SUB=AlignableObjectId::ctor\n"
      << "trying to create AlignableObjectId with unspecified geometry";
  }
}


//_____________________________________________________________________________
AlignableObjectId
::AlignableObjectId(const TrackerGeometry* tracker,
                    const DTGeometry* muonDt,
                    const CSCGeometry* muonCsc) :
  AlignableObjectId(commonGeometry(trackerGeometry(tracker),
                                   muonGeometry(muonDt, muonCsc)))
{
}

//_____________________________________________________________________________
align::StructureType
AlignableObjectId::nameToType( const std::string &name) const
{
  return stringToId(name.c_str());
}

//_____________________________________________________________________________
std::string AlignableObjectId::typeToName(align::StructureType type) const
{
  return idToString(type);
}

//_____________________________________________________________________________
const char *AlignableObjectId::idToString(align::StructureType type) const
{
  const char *result = objectIdToString(type, entries_);

  if (result == nullptr)
  {
    throw cms::Exception("AlignableObjectIdError")
      << "Unknown alignableObjectId " << type;
  }

  return result;
}

//_____________________________________________________________________________
align::StructureType AlignableObjectId::stringToId(const char *name) const
{
  auto result = stringToObjectId(name, entries_);
  if (result == -1)
  {
    throw cms::Exception("AlignableObjectIdError")
      << "Unknown alignableObjectId " << name;
  }

  return result;
}

//______________________________________________________________________________
AlignableObjectId::Geometry AlignableObjectId
::trackerGeometry(const TrackerGeometry* geometry) {
  if (!geometry) return Geometry::General;

  if (geometry->isThere(GeomDetEnumerators::P2PXEC)) {
    // use structure-type <-> name translation for PhaseII geometry
    return Geometry::PhaseII;

  } else if (geometry->isThere(GeomDetEnumerators::P1PXEC)) {
    // use structure-type <-> name translation for PhaseI geometry
    return Geometry::PhaseI;

  } else if (geometry->isThere(GeomDetEnumerators::PixelEndcap)) {
    // use structure-type <-> name translation for RunI geometry
    return Geometry::RunI;

  } else {
    throw cms::Exception("AlignableObjectIdError")
      << "@SUB=AlignableObjectId::trackerGeometry\n"
      << "unknown version of TrackerGeometry";
  }
}

AlignableObjectId::Geometry AlignableObjectId
::muonGeometry(const DTGeometry*, const CSCGeometry*) {
  // muon alignment structure types are identical for all kinds of geometries
  return Geometry::General;
}

AlignableObjectId::Geometry AlignableObjectId
::commonGeometry(Geometry first, Geometry second) {
  if (first == Geometry::General) return second;
  if (second == Geometry::General) return first;
  if (first == second) return first;

  throw cms::Exception("AlignableObjectIdError")
    << "@SUB=AlignableObjectId::commonGeometry\n"
    << "impossible to find common geometry because the two geometries are "
    << "different and none of them is 'General'";
}

AlignableObjectId AlignableObjectId
::commonObjectIdProvider(const AlignableObjectId& first,
                         const AlignableObjectId& second) {
  return AlignableObjectId{commonGeometry(first.geometry(), second.geometry())};
}

AlignableObjectId AlignableObjectId
::commonObjectIdProvider(const AlignableTracker* tracker,
                         const AlignableMuon* muon) {
  auto trackerGeometry = (tracker ?
                          tracker->objectIdProvider().geometry() :
                          AlignableObjectId::Geometry::General);
  auto muonGeometry = (muon ?
                       muon->objectIdProvider().geometry() :
                       AlignableObjectId::Geometry::General);
  return AlignableObjectId::commonGeometry(trackerGeometry, muonGeometry);
}