/data/refman/pasoursint/CMSSW_4_1_8_patch13/src/RecoTracker/TkSeedingLayers/src/HitExtractorSTRP.cc

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#include "HitExtractorSTRP.h"
#include "Geometry/TrackerGeometryBuilder/interface/TrackerLayerIdAccessor.h"
#include "TrackingTools/DetLayers/interface/DetLayer.h"

#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/Framework/interface/Event.h"

#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "DataFormats/TrackerRecHit2D/interface/SiStripMatchedRecHit2DCollection.h"
#include "DataFormats/TrackerRecHit2D/interface/SiStripRecHit2DCollection.h"

#include "DataFormats/SiStripDetId/interface/TIBDetId.h"
#include "DataFormats/SiStripDetId/interface/TIDDetId.h"
#include "DataFormats/SiStripDetId/interface/TOBDetId.h"
#include "DataFormats/SiStripDetId/interface/TECDetId.h"

using namespace ctfseeding;
using namespace std;
using namespace edm;

HitExtractorSTRP::HitExtractorSTRP( const DetLayer* detLayer, 
    SeedingLayer::Side & side, int idLayer)
  : theLayer(detLayer), theSide(side), theIdLayer(idLayer),
    hasMatchedHits(false), hasRPhiHits(false), hasStereoHits(false),
    hasRingSelector(false), theMinRing(1), theMaxRing(0), hasSimpleRphiHitsCleaner(true)
{ }

void HitExtractorSTRP::useRingSelector(int minRing, int maxRing) 
{
  hasRingSelector=true;
  theMinRing=minRing;
  theMaxRing=maxRing; 
}

bool HitExtractorSTRP::ringRange(int ring) const
{
  if (!hasRingSelector) return true;
  else if ( ring >= theMinRing && ring <= theMaxRing) return true;
  else return false;
}

HitExtractor::Hits HitExtractorSTRP::hits(const SeedingLayer & sl, const edm::Event& ev, const edm::EventSetup& es) const
{
  TrackerLayerIdAccessor accessor;
  HitExtractor::Hits result;

  //
  // TIB
  //
  if (theLayer->subDetector() == GeomDetEnumerators::TIB) {
    if (hasMatchedHits) {
      edm::Handle<SiStripMatchedRecHit2DCollection> matchedHits;
      ev.getByLabel( theMatchedHits, matchedHits);
      range2SeedingHits( *matchedHits, result, accessor.stripTIBLayer(theIdLayer), sl, es); 
    }
    if (hasRPhiHits) {
      edm::Handle<SiStripRecHit2DCollection> rphiHits;
      ev.getByLabel( theRPhiHits, rphiHits);
      if (hasMatchedHits){ 
        if (!hasSimpleRphiHitsCleaner){ // this is a brutal "cleaning". Add something smarter in the future
          range2SeedingHits( *rphiHits, result, accessor.stripTIBLayer(theIdLayer), sl, es); 
        }
      } else {
        range2SeedingHits( *rphiHits, result, accessor.stripTIBLayer(theIdLayer), sl, es); 
      }
    }
    if (hasStereoHits) {
      edm::Handle<SiStripRecHit2DCollection> stereoHits;
      ev.getByLabel( theStereoHits, stereoHits);
      range2SeedingHits( *stereoHits, result, accessor.stripTIBLayer(theIdLayer), sl, es); 
    }
  }
  
  //
  // TID
  //
  else if (theLayer->subDetector() == GeomDetEnumerators::TID) {
      if (hasMatchedHits) {
          edm::Handle<SiStripMatchedRecHit2DCollection> matchedHits;
          ev.getByLabel( theMatchedHits, matchedHits);
          std::pair<DetId,DetIdTIDSameDiskComparator> getter = accessor.stripTIDDisk(theSide,theIdLayer);
          SiStripMatchedRecHit2DCollection::Range range = matchedHits->equal_range(getter.first, getter.second);
          for (SiStripMatchedRecHit2DCollection::const_iterator it = range.first; it != range.second; ++it) {
              int ring = TIDDetId( it->detId() ).ring();  if (!ringRange(ring)) continue;
              for (SiStripMatchedRecHit2DCollection::DetSet::const_iterator hit = it->begin(), end = it->end(); hit != end; ++hit) {
                  result.push_back( sl.hitBuilder()->build(hit) ); 
              }
          }
      }
      if (hasRPhiHits) {
          edm::Handle<SiStripRecHit2DCollection> rphiHits;
          ev.getByLabel( theRPhiHits, rphiHits);
          std::pair<DetId,DetIdTIDSameDiskComparator> getter = accessor.stripTIDDisk(theSide,theIdLayer);
          SiStripRecHit2DCollection::Range range = rphiHits->equal_range(getter.first, getter.second);
          for (SiStripRecHit2DCollection::const_iterator it = range.first; it != range.second; ++it) {
              int ring = TIDDetId( it->detId() ).ring();  if (!ringRange(ring)) continue;
              if ((SiStripDetId(it->detId()).partnerDetId() != 0) && hasSimpleRphiHitsCleaner) continue;  // this is a brutal "cleaning". Add something smarter in the future
              for (SiStripRecHit2DCollection::DetSet::const_iterator hit = it->begin(), end = it->end(); hit != end; ++hit) {
                  result.push_back( sl.hitBuilder()->build(hit) );
              }
          }
      }
      if (hasStereoHits) {
          edm::Handle<SiStripRecHit2DCollection> stereoHits;
          ev.getByLabel( theStereoHits, stereoHits);
          std::pair<DetId,DetIdTIDSameDiskComparator> getter = accessor.stripTIDDisk(theSide,theIdLayer);
          SiStripRecHit2DCollection::Range range = stereoHits->equal_range(getter.first, getter.second);
          for (SiStripRecHit2DCollection::const_iterator it = range.first; it != range.second; ++it) {
              int ring = TIDDetId( it->detId() ).ring();  if (!ringRange(ring)) continue;
              for (SiStripRecHit2DCollection::DetSet::const_iterator hit = it->begin(), end = it->end(); hit != end; ++hit) {
                  result.push_back( sl.hitBuilder()->build(hit) );
              }
          }
      }
  }
  //
  // TOB
  //
  else if (theLayer->subDetector() == GeomDetEnumerators::TOB) {
    if (hasMatchedHits) {
      edm::Handle<SiStripMatchedRecHit2DCollection> matchedHits;
      ev.getByLabel( theMatchedHits, matchedHits);
      range2SeedingHits( *matchedHits, result, accessor.stripTOBLayer(theIdLayer), sl, es); 
    }
    if (hasRPhiHits) {
      edm::Handle<SiStripRecHit2DCollection> rphiHits;
      ev.getByLabel( theRPhiHits, rphiHits);
      if (hasMatchedHits){ 
        if (!hasSimpleRphiHitsCleaner){ // this is a brutal "cleaning". Add something smarter in the future
          range2SeedingHits( *rphiHits, result, accessor.stripTOBLayer(theIdLayer), sl, es); 
        }
      } else {
        range2SeedingHits( *rphiHits, result, accessor.stripTOBLayer(theIdLayer), sl, es); 
      }
    }
    if (hasStereoHits) {
      edm::Handle<SiStripRecHit2DCollection> stereoHits;
      ev.getByLabel( theStereoHits, stereoHits);
      range2SeedingHits( *stereoHits, result, accessor.stripTOBLayer(theIdLayer), sl, es); 
    }
  }

  //
  // TEC
  //
  else if (theLayer->subDetector() == GeomDetEnumerators::TEC) {
      if (hasMatchedHits) {
          edm::Handle<SiStripMatchedRecHit2DCollection> matchedHits;
          ev.getByLabel( theMatchedHits, matchedHits);
          std::pair<DetId,DetIdTECSameDiskComparator> getter = accessor.stripTECDisk(theSide,theIdLayer);
          SiStripMatchedRecHit2DCollection::Range range = matchedHits->equal_range(getter.first, getter.second);
          for (SiStripMatchedRecHit2DCollection::const_iterator it = range.first; it != range.second; ++it) {
              int ring = TECDetId( it->detId() ).ring();  if (!ringRange(ring)) continue;
              for (SiStripMatchedRecHit2DCollection::DetSet::const_iterator hit = it->begin(), end = it->end(); hit != end; ++hit) {
                  result.push_back(  sl.hitBuilder()->build(hit) );
              }
          }
      }
      if (hasRPhiHits) {
          edm::Handle<SiStripRecHit2DCollection> rphiHits;
          ev.getByLabel( theRPhiHits, rphiHits);
          std::pair<DetId,DetIdTECSameDiskComparator> getter = accessor.stripTECDisk(theSide,theIdLayer);
          SiStripRecHit2DCollection::Range range = rphiHits->equal_range(getter.first, getter.second);
          for (SiStripRecHit2DCollection::const_iterator it = range.first; it != range.second; ++it) {
              int ring = TECDetId( it->detId() ).ring();  if (!ringRange(ring)) continue;
              if ((SiStripDetId(it->detId()).partnerDetId() != 0) && hasSimpleRphiHitsCleaner) continue;  // this is a brutal "cleaning". Add something smarter in the future
              for (SiStripRecHit2DCollection::DetSet::const_iterator hit = it->begin(), end = it->end(); hit != end; ++hit) {
                  result.push_back( sl.hitBuilder()->build(hit) );
              }
          }

      }
      if (hasStereoHits) {
          edm::Handle<SiStripRecHit2DCollection> stereoHits;
          ev.getByLabel( theStereoHits, stereoHits);
          std::pair<DetId,DetIdTECSameDiskComparator> getter = accessor.stripTECDisk(theSide,theIdLayer);
          SiStripRecHit2DCollection::Range range = stereoHits->equal_range(getter.first, getter.second);
          for (SiStripRecHit2DCollection::const_iterator it = range.first; it != range.second; ++it) {
              int ring = TECDetId( it->detId() ).ring();  if (!ringRange(ring)) continue;
              for (SiStripRecHit2DCollection::DetSet::const_iterator hit = it->begin(), end = it->end(); hit != end; ++hit) {
                  result.push_back( sl.hitBuilder()->build(hit) );
              }
          }
      }
  }
  

  return result;
}