/data/refman/pasoursint/CMSSW_4_1_8_patch9/src/RecoTracker/TkDetLayers/src/TOBLayerBuilder.cc

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#include "RecoTracker/TkDetLayers/interface/TOBLayerBuilder.h"

#include "FWCore/MessageLogger/interface/MessageLogger.h"

#include "RecoTracker/TkDetLayers/interface/TOBRodBuilder.h"

using namespace edm;
using namespace std;

TOBLayer* TOBLayerBuilder::build(const GeometricDet* aTOBLayer,
                                 const TrackerGeometry* theGeomDetGeometry){

  vector<const GeometricDet*>  theGeometricDetRods = aTOBLayer->components();
  vector<const GeometricDet*> negativeZrods;
  vector<const GeometricDet*> positiveZrods;

  for(vector<const GeometricDet*>::const_iterator it=theGeometricDetRods.begin();
      it!=theGeometricDetRods.end(); it++){
    if( (*it)->positionBounds().z() < 0) negativeZrods.push_back(*it);
    if( (*it)->positionBounds().z() >= 0) positiveZrods.push_back(*it);
  }

  TOBRodBuilder myTOBRodBuilder;

  vector<const TOBRod*> theInnerRods;
  vector<const TOBRod*> theOuterRods;
  
  //LogDebug("TkDetLayers") << "positiveZrods[0]->positionBounds().perp(): " 
  //                      << positiveZrods[0]->positionBounds().perp() ;
  //LogDebug("TkDetLayers") << "positiveZrods[1]->positionBounds().perp(): " 
  //                      << positiveZrods[1]->positionBounds().perp() ;

  double positiveMeanR = 0;
  if(positiveZrods.size()>0){
    for(unsigned int index=0; index!=positiveZrods.size(); index++){
      positiveMeanR += positiveZrods[index]->positionBounds().perp();
    }
    positiveMeanR = positiveMeanR/positiveZrods.size();
  }


  double negativeMeanR = 0;
  if(negativeZrods.size()>0){
    for(unsigned int index=0; index!=negativeZrods.size(); index++){
      negativeMeanR += negativeZrods[index]->positionBounds().perp();
    }
    negativeMeanR = negativeMeanR/negativeZrods.size();
  }

  if(positiveZrods.size()>0 && negativeZrods.size()>0){
    for(unsigned int index=0; index!=positiveZrods.size(); index++){
      if( positiveZrods[index]->positionBounds().phi() != negativeZrods[index]->positionBounds().phi()){
        edm::LogError("TkDetLayers") << "ERROR:rods don't have the same phi. exit!";
        break;      
      }

      if(positiveZrods[index]->positionBounds().perp() < positiveMeanR)
        theInnerRods.push_back(myTOBRodBuilder.build(negativeZrods[index],
                                                     positiveZrods[index],
                                                     theGeomDetGeometry)    );       
      if(positiveZrods[index]->positionBounds().perp() >= positiveMeanR)
        theOuterRods.push_back(myTOBRodBuilder.build(negativeZrods[index],
                                                     positiveZrods[index],
                                                     theGeomDetGeometry)    );
    }
  } else{
    if(positiveZrods.size()>0){
      for(unsigned int index=0; index!=positiveZrods.size(); index++){
        if(positiveZrods[index]->positionBounds().perp() < positiveMeanR)
          theInnerRods.push_back(myTOBRodBuilder.build(0,
                                                       positiveZrods[index],
                                                       theGeomDetGeometry)    );       
        if(positiveZrods[index]->positionBounds().perp() >= positiveMeanR)
          theOuterRods.push_back(myTOBRodBuilder.build(0,
                                                       positiveZrods[index],
                                                       theGeomDetGeometry)    );       
      }
    }
    if(negativeZrods.size()>0){
      for(unsigned int index=0; index!=negativeZrods.size(); index++){
        if(negativeZrods[index]->positionBounds().perp() < negativeMeanR)
          theInnerRods.push_back(myTOBRodBuilder.build(negativeZrods[index],
                                                       0,
                                                       theGeomDetGeometry)    );       
        if(negativeZrods[index]->positionBounds().perp() >= negativeMeanR)
          theOuterRods.push_back(myTOBRodBuilder.build(negativeZrods[index],
                                                       0,
                                                       theGeomDetGeometry)    );
      }
    }
  }
  
  //LogDebug("TkDetLayers") << "theInnerRods.size(): " << theInnerRods.size() ;
  //LogDebug("TkDetLayers") << "theOuterRods.size(): " << theOuterRods.size() ;
  

  return new TOBLayer(theInnerRods,theOuterRods);
}