/data/refman/pasoursint/CMSSW_6_1_2_SLHC2/src/CalibTracker/SiPixelConnectivity/src/PixelEndcapLinkMaker.cc

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#include "CalibTracker/SiPixelConnectivity/interface/PixelEndcapLinkMaker.h"
#include "DataFormats/SiPixelDetId/interface/PixelModuleName.h"
#include "DataFormats/SiPixelDetId/interface/PixelEndcapName.h"
#include "CondFormats/SiPixelObjects/interface/PixelROC.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include <ostream>

using namespace std;
using namespace sipixelobjects;

bool PixelEndcapLinkMaker::Order::operator()
    (const Item &u1, const Item& u2) const
{
  bool res = true;
  const PixelEndcapName & n1 = *u1.name;
  const PixelEndcapName & n2 = *u2.name;

  if (n1.halfCylinder() < n2.halfCylinder() ) res = true;
  else if(n1.halfCylinder() > n2.halfCylinder() ) res = false;
  else if (n1.diskName() < n2.diskName() ) res =  true;
  else if (n1.diskName() > n2.diskName() ) res =  false;
  else if (n1.bladeName() < n2.bladeName() ) res =  true;
  else if (n1.bladeName() > n2.bladeName() ) res =  false;
  else if (n1.pannelName() < n2.pannelName() ) res =  true;
  else if (n1.pannelName() > n2.pannelName() ) res =  false;
  else if (n1.plaquetteName() < n2.plaquetteName() ) res =  true;
  else if (n1.plaquetteName() > n2.plaquetteName() ) res =  false;

  return res;
}

PixelEndcapLinkMaker::Links PixelEndcapLinkMaker::links(
    const Names & n, const DetUnits & u) const
{
    
  Links result; 
  typedef Names::const_iterator CIN;

  //
  // split names to links
  //
  vector<Item> linkItems;
  typedef vector<Item>::const_iterator CIU;


  for(unsigned int idx = 0; idx < n.size(); idx++) {
    Item item;
    PixelEndcapName * e = dynamic_cast<PixelEndcapName * >(n[idx]);
    uint32_t d = u[idx];
    item.name = e;
    item.unit = d;
    Range rocIds(-1,-1);
    PixelModuleName::ModuleType type = e->moduleType(); 
    switch (type) {
      case(PixelModuleName::v1x2) : { rocIds = Range(0,1); break; }
      case(PixelModuleName::v1x5) : { rocIds = Range(0,4); break; }
      case(PixelModuleName::v2x3) : { rocIds = Range(0,5); break; }
      case(PixelModuleName::v2x4) : { rocIds = Range(0,7); break; }
      case(PixelModuleName::v2x5) : { rocIds = Range(0,9); break; }
      default:
        edm::LogError("PixelEndcapLinkMaker")<< " *** UNEXPECTED roc: " << e->name() ;
    };
    item.rocIds = rocIds;
    linkItems.push_back(item);
  }
  //
  // sort names to get the order as in links
  //

  sort( linkItems.begin(), linkItems.end(), Order() );

  //
  // DEBUG
  //
  ostringstream str;
  for (CIU it = linkItems.begin(); it != linkItems.end(); it++) {
    str << (*it).name->name() <<" r="<< (*it).rocIds << endl;
  }
  LogDebug(" sorted ENDCAP links: ") << str.str();

  result.reserve(36);
  int lastPannelId = -1;
  int idLink = 0;
  int idRoc = 0;
  PixelFEDLink link(idLink); // dummy object, id=0

  for (CIU it = linkItems.begin(); it != linkItems.end(); it++) {
    PixelFEDLink::ROCs rocs;
    int pannelId = it->name->pannelName();

    if ( pannelId != lastPannelId ) {
      lastPannelId = pannelId;
      if (idLink > 0) result.push_back(link);
      idRoc = 0;
      link = PixelFEDLink(++idLink); // real link, to be filled
    }

    for (int id = (*it).rocIds.min(); id <= (*it).rocIds.max(); id++) { 
     ++idRoc;
     rocs.push_back( PixelROC( it->unit, id, idRoc ) );
    }

    link.add( rocs);
  }

  if (idLink > 0) result.push_back(link);
  return result;
}