/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_13_patch3/src/Geometry/ForwardGeometry/src/ZdcTopology.cc

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#include "Geometry/ForwardGeometry/interface/ZdcTopology.h"
#include <cmath>
#include <iostream>
#include <algorithm>

static const int ICH_EM_MAX = 5;
static const int ICH_HAD_MAX = 4;
static const int ICH_LUM_MAX = 2;

ZdcTopology::ZdcTopology() :
  excludeEM_(false),
  excludeHAD_(false),
  excludeLUM_(false),
  excludeZP_(false),
  excludeZN_(false),
  firstEMModule_(1),
  lastEMModule_(5),
  firstHADModule_(1),
  lastHADModule_(4), 
  firstLUMModule_(1),
  lastLUMModule_(2)
{
}

bool ZdcTopology::valid(const HcalZDCDetId& id) const {
  // check the raw rules
  bool ok=validRaw(id);
  ok=ok && !isExcluded(id);
  return ok;
}

bool ZdcTopology::isExcluded(const HcalZDCDetId& id) const {
  bool exed=false;

  //check the for side exclusions
  switch(id.zside()){
  case( 1): exed = excludeZP_; break;
  case(-1): exed = excludeZN_; break;
  default: exed = false;
  }

  // check for section exclutions
  switch (id.section()) {
  case(HcalZDCDetId::EM)  : exed = excludeEM_; break; 
  case(HcalZDCDetId::HAD) : exed = excludeHAD_; break; 
  case(HcalZDCDetId::LUM) : exed = excludeLUM_; break;
  default: exed = false;
  }

  // check the entire list
  if (!exed && !exclusionList_.empty()) {
    std::vector<HcalZDCDetId>::const_iterator 
      i=std::lower_bound(exclusionList_.begin(),exclusionList_.end(),id);
    if (i!=exclusionList_.end() && *i==id) exed=true;
  }
  return exed;
}

void ZdcTopology::exclude(const HcalZDCDetId& id) {
  std::vector<HcalZDCDetId>::iterator 
    i=std::lower_bound(exclusionList_.begin(),exclusionList_.end(),id);
  if (i==exclusionList_.end() || *i!=id) {
    exclusionList_.insert(i,id);
  }
}

void ZdcTopology::exclude(int zside) {
 switch(zside){
  case( 1): excludeZP_ = true; break;
  case(-1): excludeZN_ = true; break;
  default: break;
  }
}

void ZdcTopology::exclude(int zside, HcalZDCDetId::Section section) {
  switch(zside){
  case( 1): excludeZP_ = true; break;
  case(-1): excludeZN_ = true; break;
  default: break;
  }
  switch (section) {
  case(HcalZDCDetId::EM)  : excludeEM_ = true; break; 
  case(HcalZDCDetId::HAD) : excludeHAD_ = true; break; 
  case(HcalZDCDetId::LUM) : excludeLUM_ = true; break;
  default: break;
  }
}

int ZdcTopology::exclude(int zside, HcalZDCDetId::Section section, int ich1, int ich2) {
  bool exed = false;
  switch(zside){
  case( 1): exed = excludeZP_; break;
  case(-1): exed = excludeZN_; break;
  default: exed = false;
  }
  if (exed) return 0;

  switch (section) {
  case(HcalZDCDetId::EM)  : exed = excludeEM_; break; 
  case(HcalZDCDetId::HAD) : exed = excludeHAD_; break; 
  case(HcalZDCDetId::LUM) : exed = excludeLUM_; break;
  default: exed = false;
  }
  if (exed) return 0;

  bool isPositive = false;
  if(zside == 1)isPositive = true;

  int n = 0;
  for (int ich = ich1; ich < ich2; ich++){
    HcalZDCDetId id(section, isPositive, ich);  
    if(validRaw(id))exclude(id);
    n++;
  }
  return n;
}

bool ZdcTopology::validRaw(const HcalZDCDetId& id) const{
  bool ok = true;
  if(abs(id.zside())!=1)return false;
  if(id.channel() <= 0)return false;
  if(!(id.section()== HcalZDCDetId::EM || 
       id.section()== HcalZDCDetId::HAD ||
       id.section()== HcalZDCDetId::LUM)) return false;
  if(id.section()== HcalZDCDetId::EM && id.channel() > ICH_EM_MAX)
    return false;
  if(id.section()== HcalZDCDetId::HAD && id.channel() > ICH_HAD_MAX)
    return false;
  if(id.section()== HcalZDCDetId::LUM && id.channel() > ICH_LUM_MAX)
    return false;
  return ok;
}

std::vector<DetId> ZdcTopology::transverse(const DetId& id) const{
  std::vector<DetId> vNeighborsDetId;
  HcalZDCDetId zdcId = HcalZDCDetId(id);
  HcalZDCDetId zdcDetId;
  if(validRaw(zdcId) && zdcId.section()== HcalZDCDetId::EM){
    bool isPositive = false;
    if(zdcId.zside()==1)isPositive = true;
    if(zdcId.channel()==1){
      zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()+1);
      vNeighborsDetId.push_back(zdcDetId.rawId());
      return vNeighborsDetId;
    }
    if(zdcId.channel()== ICH_EM_MAX){
      zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()-1);
      vNeighborsDetId.push_back(zdcDetId.rawId());
      return vNeighborsDetId;
    }
    zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()-1);
    vNeighborsDetId.push_back(zdcDetId.rawId());
    zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()+1);
    vNeighborsDetId.push_back(zdcDetId.rawId());
  }
  return vNeighborsDetId;
}

std::vector<DetId> ZdcTopology::longitudinal(const DetId& id) const{
  std::vector<DetId> vNeighborsDetId;
  HcalZDCDetId zdcId = HcalZDCDetId(id);
  HcalZDCDetId zdcDetId;
  if(validRaw(zdcId) && zdcId.section()== HcalZDCDetId::HAD){
    bool isPositive = false;
    if(zdcId.zside()==1)isPositive = true;
    if(zdcId.channel()==1){
      zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()+1);
      vNeighborsDetId.push_back(zdcDetId.rawId());
      return vNeighborsDetId;
    }
    if(zdcId.channel()== ICH_HAD_MAX){
      zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()-1);
      vNeighborsDetId.push_back(zdcDetId.rawId());
      return vNeighborsDetId;
    }
    zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()-1);
    vNeighborsDetId.push_back(zdcDetId.rawId());
    zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()+1);
    vNeighborsDetId.push_back(zdcDetId.rawId());
  }
  if(validRaw(zdcId) && zdcId.section()== HcalZDCDetId::LUM){
    bool isPositive = false;
    if(zdcId.zside()==1)isPositive = true;
    if(zdcId.channel()==1){
      zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()+1);
      vNeighborsDetId.push_back(zdcDetId.rawId());
      return vNeighborsDetId;
    }
    if(zdcId.channel()== ICH_LUM_MAX){
      zdcDetId = HcalZDCDetId(zdcId.section(), isPositive, zdcId.channel()-1);
      vNeighborsDetId.push_back(zdcDetId.rawId());
      return vNeighborsDetId;
    }
  }
  return vNeighborsDetId;
}

std::vector<DetId> ZdcTopology::east(const DetId& /*id*/) const
{
  std::cout << "ZdcTopology::east() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}

std::vector<DetId> ZdcTopology::west(const DetId& /*id*/) const
{
  std::cout << "ZdcTopology::west() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}

std::vector<DetId> ZdcTopology::north(const DetId& /*id*/) const
{
  std::cout << "ZdcTopology::north() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}
std::vector<DetId> ZdcTopology::south(const DetId& /*id*/) const
{
  std::cout << "ZdcTopology::south() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}
std::vector<DetId> ZdcTopology::up(const DetId& /*id*/) const
{
  std::cout << "ZdcTopology::up() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}
std::vector<DetId> ZdcTopology::down(const DetId& /*id*/) const
{
  std::cout << "ZdcTopology::down() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}

int ZdcTopology::ncells(HcalZDCDetId::Section section) const{
  int ncells = 0;
  switch (section) {
  case(HcalZDCDetId::EM)  : ncells = ICH_EM_MAX; break;
  case(HcalZDCDetId::HAD) : ncells = ICH_HAD_MAX; break; 
  case(HcalZDCDetId::LUM) : ncells = ICH_LUM_MAX; break;
  case(HcalZDCDetId::Unknown) : ncells =0; break;
  }
  return ncells;
}

int ZdcTopology::firstCell(HcalZDCDetId::Section section)const {
  int firstCell = 0;
  switch (section) {
  case(HcalZDCDetId::EM) : firstCell = firstEMModule_ ; break;
  case(HcalZDCDetId::HAD) : firstCell = firstHADModule_; break; 
  case(HcalZDCDetId::LUM) : firstCell = firstLUMModule_; break;
  case(HcalZDCDetId::Unknown) : firstCell  = 0; break;
  }
  return firstCell;
}

int ZdcTopology::lastCell(HcalZDCDetId::Section section) const {
  int lastCell = 0;
  switch (section) {
  case(HcalZDCDetId::EM) : lastCell = lastEMModule_; break;
  case(HcalZDCDetId::HAD) : lastCell = lastHADModule_; break; 
  case(HcalZDCDetId::LUM) : lastCell = lastLUMModule_; break;
  case(HcalZDCDetId::Unknown) : lastCell  = 0; break;
  }
  return lastCell;
}